Hi all; I've been a lurker on this mailing list for more than four years. I plan
on eventually building my own go-kart turboshaft project one of these days. It
always seems to take a back seat to other projects though. Anyways, one of those
projects might be of use to others here - hence this email.

I'm just putting the finishing touches on my CNC milling machine and figured I'd
throw an offer out there. If anyone needs a custom part CNC'd, I'd be more than
willing to do it for a minimal fee + materials. If you can sketch me a design on
paper or CAD, I can see if I can make it for you. It's only a 3-axis machine
right now though it will very soon become a 4-axis machine with the ability to
also be a CNC lathe. I'm planning on having the ability to cut gears soon as
well but not quite there just yet. Need to finish my vacuum table first. One
project at a time and all that :)

Anyways, if anyone needs a special fitting, coupler, mount, bracket, etc. I'd
love to help out. While I've not built my jet engine yet, I think this hobby is
great and this gives me an excuse to get better at machining (another of my
hobbies) while still contributing a bit. Have fun!

Mike


[Non-text portions of this message have been removed]

Well eddy my jet engine certainley isn't the noisiest thing on the farm let me
tell you . LOL



To: DIYGasTurbines@yahoogroups.com
From: eddy_dupuis2000@...
Date: Fri, 13 Nov 2009 00:00:51 -0800
Subject: Re: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics





hello marshall back there it is not a problem to try your turbine if you dont
live in town you can do 150miles before you find a house and sometime nobody
live in lolllll

eddy_dupuis2000

________________________________
From: lemegacool <simonbeausoleil@...>
To: DIYGasTurbines@yahoogroups.com
Sent: Thu, November 12, 2009 7:13:22 PM
Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!! vid
and pics

lol yaeh neighbors start to piss off after a little while LOL

i finally bought mobil1 15w-50 oil 50$ jug but i think its a good investment.. .
st-50 rebuild kits are QUITE rare

--- In DIYGasTurbines@ yahoogroups. com, Marshall Piper <marshall01@ ...> wrote:
>
>
> Funny but i've run mine for half an hour and i can keep my hand on the
resorvoir quite easily maybe 120deg F . I've put an oil cooler on but havent
bothered hooking a fan to it yet , i guess if i were to run for a longer period
of time it might be an issue but i run out of fuel before the oil gets too hot
and i don't like to fill the tank with it running . how long do we play with our
jets before it is shutdown time anyways ?
>
> Marshall
>
>
>
> To: DIYGasTurbines@ yahoogroups. com
> From: hatfiedv@...
> Date: Wed, 11 Nov 2009 22:37:09 -0800
> Subject: Re: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
>
>
>
>
>
> one of the reasons that a tractor has little trouble with any oil is that
> the volume of oil is considerable with large area and small porosity oil
> filters and large cooling capacity. these little gas turbines have an oil
> capacity of maybe 2 gallons? this small total volume heats very quickly and
> very likely exceeds 180 degrees F. non-synthetic oil starts to carbonize at
> 160 dgrees. this is why it turns black. synthetic oils have various flash
> points of 220 to 520 degrees F. the higher the flash point, the more
> durable the oil. performance specs for good oils are available on-line from
> the manfacturors. thrust bearings and especially babbit types should
> maintain oil drain temps below 180 F. in order to maintain bearing
> integrity.
>
> ----- Original Message -----
> From: "Marshall Piper" <marshall01@ ...>
> To: <diygasturbines@ yahoogroups. com>
> Sent: Wednesday, November 11, 2009 8:30 PM
> Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
> !!! vid and pics
>
> >
> > Why don't you just try15w40 oil non synthetic we use this oil in our
> tractors and combines with good results . We get many thousands of hours of
> use out of these engines without any problems and the turbo is usually the
> last thing to worry about . the oil isn't that expensive compared to
> synthetic and it's alot thicker than 0w30 .
> >
> > Marshall
> >
> >
> >
> > To: DIYGasTurbines@ yahoogroups. com
> > From: simonbeausoleil@ ...
> > Date: Thu, 12 Nov 2009 01:12:06 +0000
> > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
> vid and pics
> >
> >
> >
> >
> >
> > MANY thanks!!! lol i guess this is the 60$ jug right LOL
> >
> > --- In DIYGasTurbines@ yahoogroups. com, "Salvatore" <saiello@> wrote:
> > >
> > > Both numbers are indicators of viscosity at different temperatures. Take
> a 15W-50 oil. The first indicates how thick the oil would be at winter
> temperatures, the oil behaving as if it had a viscosity of "15" and the
> second number tells you how thick the oil would be at operating temperatures
> if it were a "50" oil.
> > >
> > > --- In DIYGasTurbines@ yahoogroups. com, "lemegacool" <simonbeausoleil@ >
> wrote:
> > > >
> > > > ok so what weight should i aim for? what is the main difference
> between *w-30 and *w-50? i know the first number is kinda the thickness...
> would some 10w-30 syntetic oil be engough?
> > > >
> > > > --- In DIYGasTurbines@ yahoogroups. com, "John WALLIS
> \(Racketmotorman\ )" <racketmotorman@ > wrote:
> > > > >
> > > > > Hi Jon
> > > > >
> > > > > Yep , I'll go along with that , I used 15W-50 semi synthetic in both
> bike and kart , a little harder getting spooled up , and a little more of a
> wait to get the lube warmed so it can flow thru the finer passageways in the
> thrust bearing and provide the correct bearing support/dampering , but
> closer to the correct lube for our turbos than the very thin lubes like 0-30
> which if the ambiant conditions dictate, is reasonable to use , but for most
> of us in warmer climates "ordinary" weight lubes are a better compromise .
> > > > >
> > > > > On a side note ..........I just received an overhaul kit for a TL92
> , my next engine ( 10/94 BB) is going to have "brass bush" bearings and a
> standard set of "bits" on the shaft to cut down the amount of work required
> , ............ ..anyway , the thrust bearing is HUGE compared to the one in
> my bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm wide by
> 10mm long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X 10mm for
> a total of ~420 sq mms , on a square millimetres of thrust surface per
> square inch of compressor rear wall (thats producing the thrust pressure
> loads), the TL92 has just on TWICE the ratio of the "fragile" TV84's thrust
> bearing , any wonder I wrecked a few of them , the guys at the turbo
> overhaul shop had told me they had problems with the TV84 at high boost
> levels on their racing trucks , so even with 90psi oil pressure that fragile
> thrust bearing was marginal .
> > > > >
> > > > > Cheers
> > > > > John
> > > > >
> > > > > .
> > > > > ----- Original Message -----
> > > > > From: j m
> > > > > To: DIYGasTurbines@ yahoogroups. com
> > > > > Sent: Wednesday, November 11, 2009 5:14 AM
> > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
> running !!! vid and pics
> > > > >
> > > > >
> > > > >
> > > > > hi,i used to use 0w30 oil but now use 15w60 oil,really not that bad
> spooling up at all. it is quite expensive through!!i use it because the
> place i got my turbo "freshened" recommend it.the upside is the ability to
> maintain ol pressure at reduced oil flows.
> > > > > worth giving a thicker oil a try it seems :-)
> > > > > regards jon
> > > > >
> > > > > --- In DIYGasTurbines@ yahoogroups. com, "lemegacool"
> <simonbeausoleil@ > wrote:
> > > > > >
> > > > > > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!! i
> think i'll try with thicker oil... or this winter i could replace the
> shurflow pump with a procon pump...
> > > > > >
> > > > > > --- In DIYGasTurbines@ yahoogroups. com, "John WALLIS
> \(Racketmotorman\ )" <racketmotorman@ > wrote:
> > > > > > >
> > > > > > > Hi
> > > > > > >
> > > > > > > "THE" shurflo doesn't always produce the required flow once
> temperatures and pressures come up , other members have experienced the same
> problems with their ST/VT-50 turbs and shurflo , the pump is "marginal" on
> bigger turbos .
> > > > > > >
> > > > > > > Cheers
> > > > > > > John
> > > > > > >
> > > > > > >
> > > > > > > ----- Original Message -----
> > > > > > > From: lemegacool
> > > > > > > To: DIYGasTurbines@ yahoogroups. com
> > > > > > > Sent: Monday, November 09, 2009 2:16 PM
> > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
> running !!! vid and pics
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > thanks for the answers!
> > > > > > >
> > > > > > > the oil pump i'm using is "THE" shurflow pump suitable for gt
> use... i run it a 12v, i might just drain the oil and replace with 5w-30.
> dang what i'll do with all that expensive mobil1 oil... hmmm maybe use it in
> my turbo shopping kart LOL (not a gas turbine just a turboed honda 5.5 lol)
> > > > > > >
> > > > > > > yeah i kinda have some trouble sourcing a factory st-50
> gasket...
> > > > > > >
> > > > > > > and no drain in the cc... but i have a propane pilot flame
> before i juice up the diesel so basically what happened i think is that my
> pilot shutted off and didn't lit the fuel... oh well
> > > > > > >
> > > > > > > --- In DIYGasTurbines@ yahoogroups. com, Marshall Piper
> <marshall01@ > wrote:
> > > > > > > >
> > > > > > > >
> > > > > > > > Great vid's glad to see another fledgling running . About your
> questions : I think 0w30 might be a little thin but am using it myself it
> makes starting a little easier . Could you drive the pump a little faster ?
> is it pulley driven, could put a smaller pulley on the pump . I am using a
> factory gasket for the flange they are made to take the heat . I had noticed
> on your hot start vid that it looked like the engine was just about to go to
> runaway speed then you got it shut off good thing you had the leaf blower
> stuck in the intake so it couldn't get that much air or it would of over
> speeded . Are you using a drain valve on the C.C. at it's lowest point ? The
> reason i ask this is that if you don't get instant ignition and have the
> fuel on it will run out of the flame tube and pool inside the outer housing
> and then when you finally get it started the blast of air from the comp will
> lift all that fuel into the flame tube and you have an over speed situation
> and there isn't much you can doo about it except run like hell .
> > > > > > > >
> > > > > > > > Marshall
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > To: DIYGasTurbines@ yahoogroups. com
> > > > > > > > From: simonbeausoleil@
> > > > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
> > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
> running !!! vid and pics
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > thanks for the comment! :)
> > > > > > > >
> > > > > > > > so... basically i have two main question...
> > > > > > > >
> > > > > > > > 1: is 0w-30 oil is too thin?
> > > > > > > >
> > > > > > > > 2: what gasket material should i use on the cc's flange?
> > > > > > > >
> > > > > > > > thanks!
> > > > > > > >
> > > > > > > > --- In DIYGasTurbines@ yahoogroups. com, "John WALLIS
> \(Racketmotorman\ )" <racketmotorman@ > wrote:
> > > > > > > > >
> > > > > > > > > Hi
> > > > > > > > >
> > > > > > > > > Congratulations :-))
> > > > > > > > >
> > > > > > > > > Just some minor teething problems to sort out
> ............ ......LOL. ...we've all had those ............ .....good one
> > > > > > > > >
> > > > > > > > > Cheeers
> > > > > > > > > John
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > ----- Original Message -----
> > > > > > > > > From: lemegacool
> > > > > > > > > To: DIYGasTurbines@ yahoogroups. com
> > > > > > > > > Sent: Monday, November 09, 2009 7:44 AM
> > > > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is FINALLY
> running !!! vid and pics
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > i finally got my big gas turbine to run! omg its such a
> feeling being close to that thing when its spinning by itself! ok i'm now an
> addict lol
> > > > > > > > >
> > > > > > > > > http://www.youtube. com/watch? v=Nq8wk8EJBfk
> > > > > > > > >
> > > > > > > > > still some trouble happened...
> > > > > > > > >
> > > > > > > > > when the oil warmed up the pump wasnt able to push more than
> 40psi with the bypass valve completely closed... i suspect 0W-30 oil is
> maybe too thin? i would really like to keep the oil press at 50-55 psi
> > > > > > > > >
> > > > > > > > > second at the end of the vid the compressor pipe blew off in
> my face LOL now i know what 25psi of boost in a 4" pipe feels like lol the
> thing is my air inlet on the combustion chamber is 3.5" and my rubber
> coupler is 4" so i wraped some duct tape around the air inlet to enlarge
> it... lol not a good idea it blew righ of... going to make a steel enlarger
> tomorrow at work with the CNC plasma
> > > > > > > > >
> > > > > > > > >
> [IMG]http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8147.
jpg[/IMG]
> > > > > > > > >
> > > > > > > > > also the "hi temp" gasket maker started to melt and caused
> some air pressure loss... what do you guys use for the turbine's flange
> gasket???
> > > > > > > > >
> > > > > > > > > and finally i did a hot start... even with all the
> precautions i took
> > > > > > > > > DUDE its SCARY!!!
> > > > > > > > >
> > > > > > > > > http://www.youtube. com/watch? v=j1F0BxJ9Bf8
> > > > > > > > >
> > > > > > > > >
> [IMG]http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8147.
jpg[/IMG]
> > > > > > > > >
> > > > > > > > >
> [IMG]http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8147.
jpg[/IMG]
> > > > > > > > >
> > > > > > > > >
> [IMG]http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8098.
jpg[/IMG]
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > [Non-text portions of this message have been removed]
> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > ____________ _________ _________ _________ _________ _________ _
> > > > > > > > Ready. Set. Get a great deal on Windows 7. See fantastic deals
> on Windows 7 now
> > > > > > > > http://go.microsoft .com/?linkid= 9691818
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> > > > > > > > [Non-text portions of this message have been removed]
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> > > > > > > [Non-text portions of this message have been removed]
> > > > > > >
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[Non-text portions of this message have been removed]

ok thats what i thougt... even with the 0-w 30 i couldnt start her up without
preheating the turbos for like 1 minute... with this oil i'll just fire up the
diesel low enought so there is no flame coming out of the exhaust and let it
warm for a minute or two... its getting cold in here too -5 today brrrr.

and yeah i know the layout of the GT is not optimal but hey give me some credit
i was 18 when i designed it and i did not thought of everything (curves and
everything) you can expect my next GT to be way more professionnal! , i'm
planning on doing one around a eagle talon's turbo (small)

  here is some pics of what i did this afternoon...

i fitted the steel "enlarger" ring on my cc
made a gasket out of some sort of asbestos sheet (found a roll of that at work)
seems like it will handle heat well!
and i added some cooling fans onto the cooler do you think they are overkill?

http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8149.jpg

http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8148.jpg

http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8150.jpg

--- In DIYGasTurbines@yahoogroups.com, "John WALLIS \(Racketmotorman\)"
<racketmotorman@...> wrote:
>
> Hi
>
> Yeh , I'd say  too much drag thru the system  due to the ambiant conditions
combined with the more viscous lube , hopefully once things warm up a bit the
problem will solve itself , the main thing is that you have pressure at the
turbo's lube inlet , and 60psi is more than adequate .
>
> Just fire her up and idle for a while to get some heat into the lube  and see
if the pressure improves , engine lube characteristics only "stabalise" once
temps reach ~150F - 65 C  , the "normal?? " lube temp in an IC engine.
>
> At one time back in the early 1980's I had a small Rayjay 302B turbo on my 1.5
litre motorcycle  and on cold days the lube pressure at the turbo was 0 psi
until things were warmed up , the rather long small bore supply tubing to the
turbo caused so much restriction to flow with the cold lube that very little
reached the turb bearings
>
> Cheers
> John
>
>
>   ----- Original Message -----
>   From: lemegacool
>   To: DIYGasTurbines@yahoogroups.com
>   Sent: Saturday, November 14, 2009 4:51 AM
>   Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
>
>
>
>   my tubing is 3/8 copper and the oil pickup can be seen in the pic included .
there is quite a lenght of pipe from the pump to the turbo : it goes out of the
pump then about 16" hose to a transmission oil cooler then 10" hose to oil
filter then about 20" 3/8 copper line
>
>   http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8089.jpg
>
>   --- In DIYGasTurbines@yahoogroups.com, "John WALLIS \(Racketmotorman\)"
<racketmotorman@> wrote:
>   >
>   > Hi
>   >
>   > Sounds like the pump is struggling to pump the thicker lube when cold , it
"should?" improve as the lube warms and thins .
>   >
>   > But best keep a close watch on the oil pressure whilst trying to warm it ,
just in case the pump is faulty .
>   >
>   > Where are you taking the pressure reading from ??..................if at
the turbo ,........... and you are running "undersized" delivery tubing, the
line friction could be the problem if ambiant temps are low , the friction will
restrict flow until the lube warms , your pump could be producing a higher
pressure but the line friction reduces it by the time it reaches the turbo and
pressure pickup .
>   >
>   > What size delivery tubing ...........and how long is the run between pump
and turbo .??
>   >
>   > Cheers
>   > John
>   >
>   >
>   > ----- Original Message -----
>   > From: lemegacool
>   > To: DIYGasTurbines@yahoogroups.com
>   > Sent: Friday, November 13, 2009 3:00 PM
>   > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
>   >
>   >
>   >
>   > so i changed the oil and now the max pressure the pump will put out (cold)
is 60 psi compared to 80-90 with the 0w oil... so basically if i get it right
the pressure should go up a little when warming then it will remain enough thick
to allow the pump to push it at a decent psi... right? sorry for the stupid
question i'm tired lol
>   >
>   > --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@>
wrote:
>   > >
>   > > lol yaeh neighbors start to piss off after a little while LOL
>   > >
>   > > i finally bought mobil1 15w-50 oil 50$ jug but i think its a good
investment... st-50 rebuild kits are QUITE rare
>   > >
>   > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper <marshall01@>
wrote:
>   > > >
>   > > >
>   > > > Funny but i've run mine for half an hour and i can keep my hand on the
resorvoir quite easily maybe 120deg F . I've put an oil cooler on but havent
bothered hooking a fan to it yet , i guess if i were to run for a longer period
of time it might be an issue but i run out of fuel before the oil gets too hot
and i don't like to fill the tank with it running . how long do we play with our
jets before it is shutdown time anyways ?
>   > > >
>   > > > Marshall
>   > > >
>   > > >
>   > > >
>   > > > To: DIYGasTurbines@yahoogroups.com
>   > > > From: hatfiedv@
>   > > > Date: Wed, 11 Nov 2009 22:37:09 -0800
>   > > > Subject: Re: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
>   > > >
>   > > >
>   > > >
>   > > >
>   > > >
>   > > > one of the reasons that a tractor has little trouble with any oil is
that
>   > > > the volume of oil is considerable with large area and small porosity
oil
>   > > > filters and large cooling capacity. these little gas turbines have an
oil
>   > > > capacity of maybe 2 gallons? this small total volume heats very
quickly and
>   > > > very likely exceeds 180 degrees F. non-synthetic oil starts to
carbonize at
>   > > > 160 dgrees. this is why it turns black. synthetic oils have various
flash
>   > > > points of 220 to 520 degrees F. the higher the flash point, the more
>   > > > durable the oil. performance specs for good oils are available on-line
from
>   > > > the manfacturors. thrust bearings and especially babbit types should
>   > > > maintain oil drain temps below 180 F. in order to maintain bearing
>   > > > integrity.
>   > > >
>   > > > ----- Original Message -----
>   > > > From: "Marshall Piper" <marshall01@>
>   > > > To: <diygasturbines@yahoogroups.com>
>   > > > Sent: Wednesday, November 11, 2009 8:30 PM
>   > > > Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running
>   > > > !!! vid and pics
>   > > >
>   > > > >
>   > > > > Why don't you just try15w40 oil non synthetic we use this oil in our
>   > > > tractors and combines with good results . We get many thousands of
hours of
>   > > > use out of these engines without any problems and the turbo is usually
the
>   > > > last thing to worry about . the oil isn't that expensive compared to
>   > > > synthetic and it's alot thicker than 0w30 .
>   > > > >
>   > > > > Marshall
>   > > > >
>   > > > >
>   > > > >
>   > > > > To: DIYGasTurbines@yahoogroups.com
>   > > > > From: simonbeausoleil@
>   > > > > Date: Thu, 12 Nov 2009 01:12:06 +0000
>   > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!!
>   > > > vid and pics
>   > > > >
>   > > > >
>   > > > >
>   > > > >
>   > > > >
>   > > > > MANY thanks!!! lol i guess this is the 60$ jug right LOL
>   > > > >
>   > > > > --- In DIYGasTurbines@yahoogroups.com, "Salvatore" <saiello@> wrote:
>   > > > > >
>   > > > > > Both numbers are indicators of viscosity at different
temperatures. Take
>   > > > a 15W-50 oil. The first indicates how thick the oil would be at winter
>   > > > temperatures, the oil behaving as if it had a viscosity of "15" and
the
>   > > > second number tells you how thick the oil would be at operating
temperatures
>   > > > if it were a "50" oil.
>   > > > > >
>   > > > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool"
<simonbeausoleil@>
>   > > > wrote:
>   > > > > > >
>   > > > > > > ok so what weight should i aim for? what is the main difference
>   > > > between *w-30 and *w-50? i know the first number is kinda the
thickness...
>   > > > would some 10w-30 syntetic oil be engough?
>   > > > > > >
>   > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
>   > > > \(Racketmotorman\)" <racketmotorman@> wrote:
>   > > > > > > >
>   > > > > > > > Hi Jon
>   > > > > > > >
>   > > > > > > > Yep , I'll go along with that , I used 15W-50 semi synthetic
in both
>   > > > bike and kart , a little harder getting spooled up , and a little more
of a
>   > > > wait to get the lube warmed so it can flow thru the finer passageways
in the
>   > > > thrust bearing and provide the correct bearing support/dampering , but
>   > > > closer to the correct lube for our turbos than the very thin lubes
like 0-30
>   > > > which if the ambiant conditions dictate, is reasonable to use , but
for most
>   > > > of us in warmer climates "ordinary" weight lubes are a better
compromise .
>   > > > > > > >
>   > > > > > > > On a side note ..........I just received an overhaul kit for a
TL92
>   > > > , my next engine ( 10/94 BB) is going to have "brass bush" bearings
and a
>   > > > standard set of "bits" on the shaft to cut down the amount of work
required
>   > > > , ..............anyway , the thrust bearing is HUGE compared to the
one in
>   > > > my bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm
wide by
>   > > > 10mm long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X
10mm for
>   > > > a total of ~420 sq mms , on a square millimetres of thrust surface per
>   > > > square inch of compressor rear wall (thats producing the thrust
pressure
>   > > > loads), the TL92 has just on TWICE the ratio of the "fragile" TV84's
thrust
>   > > > bearing , any wonder I wrecked a few of them , the guys at the turbo
>   > > > overhaul shop had told me they had problems with the TV84 at high
boost
>   > > > levels on their racing trucks , so even with 90psi oil pressure that
fragile
>   > > > thrust bearing was marginal .
>   > > > > > > >
>   > > > > > > > Cheers
>   > > > > > > > John
>   > > > > > > >
>   > > > > > > > .
>   > > > > > > > ----- Original Message -----
>   > > > > > > > From: j m
>   > > > > > > > To: DIYGasTurbines@yahoogroups.com
>   > > > > > > > Sent: Wednesday, November 11, 2009 5:14 AM
>   > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
>   > > > running !!! vid and pics
>   > > > > > > >
>   > > > > > > >
>   > > > > > > >
>   > > > > > > > hi,i used to use 0w30 oil but now use 15w60 oil,really not
that bad
>   > > > spooling up at all. it is quite expensive through!!i use it because
the
>   > > > place i got my turbo "freshened" recommend it.the upside is the
ability to
>   > > > maintain ol pressure at reduced oil flows.
>   > > > > > > > worth giving a thicker oil a try it seems :-)
>   > > > > > > > regards jon
>   > > > > > > >
>   > > > > > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool"
>   > > > <simonbeausoleil@> wrote:
>   > > > > > > > >
>   > > > > > > > > ohhh i see... so my 125$ pump isn't doing the job...
D'OH!!!! i
>   > > > think i'll try with thicker oil... or this winter i could replace the
>   > > > shurflow pump with a procon pump...
>   > > > > > > > >
>   > > > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
>   > > > \(Racketmotorman\)" <racketmotorman@> wrote:
>   > > > > > > > > >
>   > > > > > > > > > Hi
>   > > > > > > > > >
>   > > > > > > > > > "THE" shurflo doesn't always produce the required flow
once
>   > > > temperatures and pressures come up , other members have experienced
the same
>   > > > problems with their ST/VT-50 turbs and shurflo , the pump is
"marginal" on
>   > > > bigger turbos .
>   > > > > > > > > >
>   > > > > > > > > > Cheers
>   > > > > > > > > > John
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > > ----- Original Message -----
>   > > > > > > > > > From: lemegacool
>   > > > > > > > > > To: DIYGasTurbines@yahoogroups.com
>   > > > > > > > > > Sent: Monday, November 09, 2009 2:16 PM
>   > > > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is
FINALLY
>   > > > running !!! vid and pics
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > > thanks for the answers!
>   > > > > > > > > >
>   > > > > > > > > > the oil pump i'm using is "THE" shurflow pump suitable for
gt
>   > > > use... i run it a 12v, i might just drain the oil and replace with
5w-30.
>   > > > dang what i'll do with all that expensive mobil1 oil... hmmm maybe use
it in
>   > > > my turbo shopping kart LOL (not a gas turbine just a turboed honda 5.5
lol)
>   > > > > > > > > >
>   > > > > > > > > > yeah i kinda have some trouble sourcing a factory st-50
>   > > > gasket...
>   > > > > > > > > >
>   > > > > > > > > > and no drain in the cc... but i have a propane pilot flame
>   > > > before i juice up the diesel so basically what happened i think is
that my
>   > > > pilot shutted off and didn't lit the fuel... oh well
>   > > > > > > > > >
>   > > > > > > > > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper
>   > > > <marshall01@> wrote:
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > > Great vid's glad to see another fledgling running .
About your
>   > > > questions : I think 0w30 might be a little thin but am using it myself
it
>   > > > makes starting a little easier . Could you drive the pump a little
faster ?
>   > > > is it pulley driven, could put a smaller pulley on the pump . I am
using a
>   > > > factory gasket for the flange they are made to take the heat . I had
noticed
>   > > > on your hot start vid that it looked like the engine was just about to
go to
>   > > > runaway speed then you got it shut off good thing you had the leaf
blower
>   > > > stuck in the intake so it couldn't get that much air or it would of
over
>   > > > speeded . Are you using a drain valve on the C.C. at it's lowest point
? The
>   > > > reason i ask this is that if you don't get instant ignition and have
the
>   > > > fuel on it will run out of the flame tube and pool inside the outer
housing
>   > > > and then when you finally get it started the blast of air from the
comp will
>   > > > lift all that fuel into the flame tube and you have an over speed
situation
>   > > > and there isn't much you can doo about it except run like hell .
>   > > > > > > > > > >
>   > > > > > > > > > > Marshall
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > > To: DIYGasTurbines@yahoogroups.com
>   > > > > > > > > > > From: simonbeausoleil@
>   > > > > > > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
>   > > > > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is
FINALLY
>   > > > running !!! vid and pics
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > > thanks for the comment! :)
>   > > > > > > > > > >
>   > > > > > > > > > > so... basically i have two main question...
>   > > > > > > > > > >
>   > > > > > > > > > > 1: is 0w-30 oil is too thin?
>   > > > > > > > > > >
>   > > > > > > > > > > 2: what gasket material should i use on the cc's flange?
>   > > > > > > > > > >
>   > > > > > > > > > > thanks!
>   > > > > > > > > > >
>   > > > > > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
>   > > > \(Racketmotorman\)" <racketmotorman@> wrote:
>   > > > > > > > > > > >
>   > > > > > > > > > > > Hi
>   > > > > > > > > > > >
>   > > > > > > > > > > > Congratulations :-))
>   > > > > > > > > > > >
>   > > > > > > > > > > > Just some minor teething problems to sort out
>   > > > ..................LOL....we've all had those .................good one
>   > > > > > > > > > > >
>   > > > > > > > > > > > Cheeers
>   > > > > > > > > > > > John
>   > > > > > > > > > > >
>   > > > > > > > > > > >
>   > > > > > > > > > > > ----- Original Message -----
>   > > > > > > > > > > > From: lemegacool
>   > > > > > > > > > > > To: DIYGasTurbines@yahoogroups.com
>   > > > > > > > > > > > Sent: Monday, November 09, 2009 7:44 AM
>   > > > > > > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is
FINALLY
>   > > > running !!! vid and pics
>   > > > > > > > > > > >
>   > > > > > > > > > > >
>   > > > > > > > > > > >
>   > > > > > > > > > > > i finally got my big gas turbine to run! omg its such
a
>   > > > feeling being close to that thing when its spinning by itself! ok i'm
now an
>   > > > addict lol
>   > > > > > > > > > > >
>   > > > > > > > > > > > http://www.youtube.com/watch?v=Nq8wk8EJBfk
>   > > > > > > > > > > >
>   > > > > > > > > > > > still some trouble happened...
>   > > > > > > > > > > >
>   > > > > > > > > > > > when the oil warmed up the pump wasnt able to push
more than
>   > > > 40psi with the bypass valve completely closed... i suspect 0W-30 oil
is
>   > > > maybe too thin? i would really like to keep the oil press at 50-55 psi
>   > > > > > > > > > > >
>   > > > > > > > > > > > second at the end of the vid the compressor pipe blew
off in
>   > > > my face LOL now i know what 25psi of boost in a 4" pipe feels like lol
the
>   > > > thing is my air inlet on the combustion chamber is 3.5" and my rubber
>   > > > coupler is 4" so i wraped some duct tape around the air inlet to
enlarge
>   > > > it... lol not a good idea it blew righ of... going to make a steel
enlarger
>   > > > tomorrow at work with the CNC plasma
>   > > > > > > > > > > >
>   > > > > > > > > > > >
>   > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
>   > > > > > > > > > > >
>   > > > > > > > > > > > also the "hi temp" gasket maker started to melt and
caused
>   > > > some air pressure loss... what do you guys use for the turbine's
flange
>   > > > gasket???
>   > > > > > > > > > > >
>   > > > > > > > > > > > and finally i did a hot start... even with all the
>   > > > precautions i took
>   > > > > > > > > > > > DUDE its SCARY!!!
>   > > > > > > > > > > >
>   > > > > > > > > > > > http://www.youtube.com/watch?v=j1F0BxJ9Bf8
>   > > > > > > > > > > >
>   > > > > > > > > > > >
>   > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
>   > > > > > > > > > > >
>   > > > > > > > > > > >
>   > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
>   > > > > > > > > > > >
>   > > > > > > > > > > >
>   > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8098.jpg[/IMG]
>   > > > > > > > > > > >
>   > > > > > > > > > > >
>   > > > > > > > > > > >
>   > > > > > > > > > > >
>   > > > > > > > > > > >
>   > > > > > > > > > > > [Non-text portions of this message have been removed]
>   > > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
__________________________________________________________
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>

there is so much curve in the tubing of your project like the turbo to the
combustion chamber specialy therefor the tubing for gas and oil i cant see
enough.
every time you put a curve you loose pression or cfmand when i have a look on
the turbo and the c.c. you lost a lot of cfm.
eddy_dupuis2000




________________________________
From: lemegacool <simonbeausoleil@...>
To: DIYGasTurbines@yahoogroups.com
Sent: Fri, November 13, 2009 1:51:29 PM
Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!! vid
and pics


my tubing is 3/8 copper and the oil pickup can be seen in the pic included .
there is quite a lenght of pipe from the pump to the turbo : it goes out of the
pump then about 16" hose to a transmission oil cooler then 10" hose to oil
filter then about 20" 3/8 copper line

http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8089. jpg

--- In DIYGasTurbines@ yahoogroups. com, "John WALLIS \(Racketmotorman\ )"
<racketmotorman@ ...> wrote:
>
> Hi
>
> Sounds like the pump is struggling to pump the thicker lube  when cold , it
"should?"  improve as the lube warms and thins .
>
> But best keep a close watch on the oil pressure  whilst trying to warm it , 
just in case the pump is faulty .
>
> Where are you taking the pressure reading from ??.......... ........if at the
turbo  ,........... and you are running "undersized" delivery tubing,  the line
friction could be the problem if ambiant temps are low , the friction will
restrict flow until the lube warms , your pump could be producing a higher
pressure but the line friction reduces it by the time it reaches the turbo and
pressure pickup .
>
> What size delivery tubing ...........and how long is the run between pump and
turbo .??
>
> Cheers
> John
>
>
>   ----- Original Message -----
>   From: lemegacool
>   To: DIYGasTurbines@ yahoogroups. com
>   Sent: Friday, November 13, 2009 3:00 PM
>   Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
>
>
>
>   so i changed the oil and now the max pressure the pump will put out (cold)
is 60 psi compared to 80-90 with the 0w oil... so basically if i get it right
the pressure should go up a little when warming then it will remain enough thick
to allow the pump to push it at a decent psi... right? sorry for the stupid
question i'm tired lol
>
>   --- In DIYGasTurbines@ yahoogroups. com, "lemegacool" <simonbeausoleil@ >
wrote:
>   >
>   > lol yaeh neighbors start to piss off after a little while LOL
>   >
>   > i finally bought mobil1 15w-50 oil 50$ jug but i think its a good
investment.. . st-50 rebuild kits are QUITE rare
>   >
>   > --- In DIYGasTurbines@ yahoogroups. com, Marshall Piper <marshall01@ >
wrote:
>   > >
>   > >
>   > > Funny but i've run mine for half an hour and i can keep my hand on the
resorvoir quite easily maybe 120deg F . I've put an oil cooler on but havent
bothered hooking a fan to it yet , i guess if i were to run for a longer period
of time it might be an issue but i run out of fuel before the oil gets too hot
and i don't like to fill the tank with it running . how long do we play with our
jets before it is shutdown time anyways ?
>   > >
>   > > Marshall
>   > >
>   > >
>   > >
>   > > To: DIYGasTurbines@ yahoogroups. com
>   > > From: hatfiedv@
>   > > Date: Wed, 11 Nov 2009 22:37:09 -0800
>   > > Subject: Re: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
>   > >
>   > >
>   > >
>   > >
>   > >
>   > > one of the reasons that a tractor has little trouble with any oil is
that
>   > > the volume of oil is considerable with large area and small porosity oil
>   > > filters and large cooling capacity. these little gas turbines have an
oil
>   > > capacity of maybe 2 gallons? this small total volume heats very quickly
and
>   > > very likely exceeds 180 degrees F. non-synthetic oil starts to carbonize
at
>   > > 160 dgrees. this is why it turns black. synthetic oils have various
flash
>   > > points of 220 to 520 degrees F. the higher the flash point, the more
>   > > durable the oil. performance specs for good oils are available on-line
from
>   > > the manfacturors. thrust bearings and especially babbit types should
>   > > maintain oil drain temps below 180 F. in order to maintain bearing
>   > > integrity.
>   > >
>   > > ----- Original Message -----
>   > > From: "Marshall Piper" <marshall01@ >
>   > > To: <diygasturbines@ yahoogroups. com>
>   > > Sent: Wednesday, November 11, 2009 8:30 PM
>   > > Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running
>   > > !!! vid and pics
>   > >
>   > > >
>   > > > Why don't you just try15w40 oil non synthetic we use this oil in our
>   > > tractors and combines with good results . We get many thousands of hours
of
>   > > use out of these engines without any problems and the turbo is usually
the
>   > > last thing to worry about . the oil isn't that expensive compared to
>   > > synthetic and it's alot thicker than 0w30 .
>   > > >
>   > > > Marshall
>   > > >
>   > > >
>   > > >
>   > > > To: DIYGasTurbines@ yahoogroups. com
>   > > > From: simonbeausoleil@
>   > > > Date: Thu, 12 Nov 2009 01:12:06 +0000
>   > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
!!!
>   > > vid and pics
>   > > >
>   > > >
>   > > >
>   > > >
>   > > >
>   > > > MANY thanks!!! lol i guess this is the 60$ jug right LOL
>   > > >
>   > > > --- In DIYGasTurbines@ yahoogroups. com, "Salvatore" <saiello@> wrote:
>   > > > >
>   > > > > Both numbers are indicators of viscosity at different temperatures.
Take
>   > > a 15W-50 oil. The first indicates how thick the oil would be at winter
>   > > temperatures, the oil behaving as if it had a viscosity of "15" and the
>   > > second number tells you how thick the oil would be at operating
temperatures
>   > > if it were a "50" oil.
>   > > > >
>   > > > > --- In DIYGasTurbines@ yahoogroups. com, "lemegacool"
<simonbeausoleil@ >
>   > > wrote:
>   > > > > >
>   > > > > > ok so what weight should i aim for? what is the main difference
>   > > between *w-30 and *w-50? i know the first number is kinda the
thickness...
>   > > would some 10w-30 syntetic oil be engough?
>   > > > > >
>   > > > > > --- In DIYGasTurbines@ yahoogroups. com, "John WALLIS
>   > > \(Racketmotorman\ )" <racketmotorman@ > wrote:
>   > > > > > >
>   > > > > > > Hi Jon
>   > > > > > >
>   > > > > > > Yep , I'll go along with that , I used 15W-50 semi synthetic in
both
>   > > bike and kart , a little harder getting spooled up , and a little more
of a
>   > > wait to get the lube warmed so it can flow thru the finer passageways in
the
>   > > thrust bearing and provide the correct bearing support/dampering , but
>   > > closer to the correct lube for our turbos than the very thin lubes like
0-30
>   > > which if the ambiant conditions dictate, is reasonable to use , but for
most
>   > > of us in warmer climates "ordinary" weight lubes are a better compromise
.
>   > > > > > >
>   > > > > > > On a side note ..........I just received an overhaul kit for a
TL92
>   > > , my next engine ( 10/94 BB) is going to have "brass bush" bearings and
a
>   > > standard set of "bits" on the shaft to cut down the amount of work
required
>   > > , ............ ..anyway , the thrust bearing is HUGE compared to the one
in
>   > > my bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm wide
by
>   > > 10mm long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X 10mm
for
>   > > a total of ~420 sq mms , on a square millimetres of thrust surface per
>   > > square inch of compressor rear wall (thats producing the thrust pressure
>   > > loads), the TL92 has just on TWICE the ratio of the "fragile" TV84's
thrust
>   > > bearing , any wonder I wrecked a few of them , the guys at the turbo
>   > > overhaul shop had told me they had problems with the TV84 at high boost
>   > > levels on their racing trucks , so even with 90psi oil pressure that
fragile
>   > > thrust bearing was marginal .
>   > > > > > >
>   > > > > > > Cheers
>   > > > > > > John
>   > > > > > >
>   > > > > > > .
>   > > > > > > ----- Original Message -----
>   > > > > > > From: j m
>   > > > > > > To: DIYGasTurbines@ yahoogroups. com
>   > > > > > > Sent: Wednesday, November 11, 2009 5:14 AM
>   > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
>   > > running !!! vid and pics
>   > > > > > >
>   > > > > > >
>   > > > > > >
>   > > > > > > hi,i used to use 0w30 oil but now use 15w60 oil,really not that
bad
>   > > spooling up at all. it is quite expensive through!!i use it because the
>   > > place i got my turbo "freshened" recommend it.the upside is the ability
to
>   > > maintain ol pressure at reduced oil flows.
>   > > > > > > worth giving a thicker oil a try it seems :-)
>   > > > > > > regards jon
>   > > > > > >
>   > > > > > > --- In DIYGasTurbines@ yahoogroups. com, "lemegacool"
>   > > <simonbeausoleil@ > wrote:
>   > > > > > > >
>   > > > > > > > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!!
i
>   > > think i'll try with thicker oil... or this winter i could replace the
>   > > shurflow pump with a procon pump...
>   > > > > > > >
>   > > > > > > > --- In DIYGasTurbines@ yahoogroups. com, "John WALLIS
>   > > \(Racketmotorman\ )" <racketmotorman@ > wrote:
>   > > > > > > > >
>   > > > > > > > > Hi
>   > > > > > > > >
>   > > > > > > > > "THE" shurflo doesn't always produce the required flow once
>   > > temperatures and pressures come up , other members have experienced the
same
>   > > problems with their ST/VT-50 turbs and shurflo , the pump is "marginal"
on
>   > > bigger turbos .
>   > > > > > > > >
>   > > > > > > > > Cheers
>   > > > > > > > > John
>   > > > > > > > >
>   > > > > > > > >
>   > > > > > > > > ----- Original Message -----
>   > > > > > > > > From: lemegacool
>   > > > > > > > > To: DIYGasTurbines@ yahoogroups. com
>   > > > > > > > > Sent: Monday, November 09, 2009 2:16 PM
>   > > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is
FINALLY
>   > > running !!! vid and pics
>   > > > > > > > >
>   > > > > > > > >
>   > > > > > > > >
>   > > > > > > > > thanks for the answers!
>   > > > > > > > >
>   > > > > > > > > the oil pump i'm using is "THE" shurflow pump suitable for
gt
>   > > use... i run it a 12v, i might just drain the oil and replace with
5w-30.
>   > > dang what i'll do with all that expensive mobil1 oil... hmmm maybe use
it in
>   > > my turbo shopping kart LOL (not a gas turbine just a turboed honda 5.5
lol)
>   > > > > > > > >
>   > > > > > > > > yeah i kinda have some trouble sourcing a factory st-50
>   > > gasket...
>   > > > > > > > >
>   > > > > > > > > and no drain in the cc... but i have a propane pilot flame
>   > > before i juice up the diesel so basically what happened i think is that
my
>   > > pilot shutted off and didn't lit the fuel... oh well
>   > > > > > > > >
>   > > > > > > > > --- In DIYGasTurbines@ yahoogroups. com, Marshall Piper
>   > > <marshall01@ > wrote:
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > > Great vid's glad to see another fledgling running . About
your
>   > > questions : I think 0w30 might be a little thin but am using it myself
it
>   > > makes starting a little easier . Could you drive the pump a little
faster ?
>   > > is it pulley driven, could put a smaller pulley on the pump . I am using
a
>   > > factory gasket for the flange they are made to take the heat . I had
noticed
>   > > on your hot start vid that it looked like the engine was just about to
go to
>   > > runaway speed then you got it shut off good thing you had the leaf
blower
>   > > stuck in the intake so it couldn't get that much air or it would of over
>   > > speeded . Are you using a drain valve on the C.C. at it's lowest point ?
The
>   > > reason i ask this is that if you don't get instant ignition and have the
>   > > fuel on it will run out of the flame tube and pool inside the outer
housing
>   > > and then when you finally get it started the blast of air from the comp
will
>   > > lift all that fuel into the flame tube and you have an over speed
situation
>   > > and there isn't much you can doo about it except run like hell .
>   > > > > > > > > >
>   > > > > > > > > > Marshall
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > > To: DIYGasTurbines@ yahoogroups. com
>   > > > > > > > > > From: simonbeausoleil@
>   > > > > > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
>   > > > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is
FINALLY
>   > > running !!! vid and pics
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > > thanks for the comment! :)
>   > > > > > > > > >
>   > > > > > > > > > so... basically i have two main question...
>   > > > > > > > > >
>   > > > > > > > > > 1: is 0w-30 oil is too thin?
>   > > > > > > > > >
>   > > > > > > > > > 2: what gasket material should i use on the cc's flange?
>   > > > > > > > > >
>   > > > > > > > > > thanks!
>   > > > > > > > > >
>   > > > > > > > > > --- In DIYGasTurbines@ yahoogroups. com, "John WALLIS
>   > > \(Racketmotorman\ )" <racketmotorman@ > wrote:
>   > > > > > > > > > >
>   > > > > > > > > > > Hi
>   > > > > > > > > > >
>   > > > > > > > > > > Congratulations :-))
>   > > > > > > > > > >
>   > > > > > > > > > > Just some minor teething problems to sort out
>   > > ............ ......LOL. ...we've all had those ............ .....good
one
>   > > > > > > > > > >
>   > > > > > > > > > > Cheeers
>   > > > > > > > > > > John
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > > ----- Original Message -----
>   > > > > > > > > > > From: lemegacool
>   > > > > > > > > > > To: DIYGasTurbines@ yahoogroups. com
>   > > > > > > > > > > Sent: Monday, November 09, 2009 7:44 AM
>   > > > > > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is
FINALLY
>   > > running !!! vid and pics
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > > i finally got my big gas turbine to run! omg its such a
>   > > feeling being close to that thing when its spinning by itself! ok i'm
now an
>   > > addict lol
>   > > > > > > > > > >
>   > > > > > > > > > > http://www.youtube. com/watch? v=Nq8wk8EJBfk
>   > > > > > > > > > >
>   > > > > > > > > > > still some trouble happened...
>   > > > > > > > > > >
>   > > > > > > > > > > when the oil warmed up the pump wasnt able to push more
than
>   > > 40psi with the bypass valve completely closed... i suspect 0W-30 oil is
>   > > maybe too thin? i would really like to keep the oil press at 50-55 psi
>   > > > > > > > > > >
>   > > > > > > > > > > second at the end of the vid the compressor pipe blew
off in
>   > > my face LOL now i know what 25psi of boost in a 4" pipe feels like lol
the
>   > > thing is my air inlet on the combustion chamber is 3.5" and my rubber
>   > > coupler is 4" so i wraped some duct tape around the air inlet to enlarge
>   > > it... lol not a good idea it blew righ of... going to make a steel
enlarger
>   > > tomorrow at work with the CNC plasma
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > [IMG]http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8147.
jpg[/IMG]
>   > > > > > > > > > >
>   > > > > > > > > > > also the "hi temp" gasket maker started to melt and
caused
>   > > some air pressure loss... what do you guys use for the turbine's flange
>   > > gasket???
>   > > > > > > > > > >
>   > > > > > > > > > > and finally i did a hot start... even with all the
>   > > precautions i took
>   > > > > > > > > > > DUDE its SCARY!!!
>   > > > > > > > > > >
>   > > > > > > > > > > http://www.youtube. com/watch? v=j1F0BxJ9Bf8
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > [IMG]http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8147.
jpg[/IMG]
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > [IMG]http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8147.
jpg[/IMG]
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > [IMG]http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8098.
jpg[/IMG]
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > > [Non-text portions of this message have been removed]
>   > > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > > ____________ _________ _________ _________ _________
_________ _
>   > > > > > > > > > Ready. Set. Get a great deal on Windows 7. See fantastic
deals
>   > > on Windows 7 now
>   > > > > > > > > > http://go.microsoft .com/?linkid= 9691818
>   > > > > > > > > >
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>   > > > > > > > >
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>   > > > > > > > >
>   > > > > > > > >
>   > > > > > > > > [Non-text portions of this message have been removed]
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>   > > > ------------ --------- --------- ------
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[Non-text portions of this message have been removed]

Hi

Yeh , I'd say  too much drag thru the system  due to the ambiant conditions
combined with the more viscous lube , hopefully once things warm up a bit the
problem will solve itself , the main thing is that you have pressure at the
turbo's lube inlet , and 60psi is more than adequate .

Just fire her up and idle for a while to get some heat into the lube  and see if
the pressure improves , engine lube characteristics only "stabalise" once temps
reach ~150F - 65 C  , the "normal?? " lube temp in an IC engine.

At one time back in the early 1980's I had a small Rayjay 302B turbo on my 1.5
litre motorcycle  and on cold days the lube pressure at the turbo was 0 psi
until things were warmed up , the rather long small bore supply tubing to the
turbo caused so much restriction to flow with the cold lube that very little
reached the turb bearings

Cheers
John


   ----- Original Message -----
   From: lemegacool
   To: DIYGasTurbines@yahoogroups.com
   Sent: Saturday, November 14, 2009 4:51 AM
   Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!! vid
and pics



   my tubing is 3/8 copper and the oil pickup can be seen in the pic included .
there is quite a lenght of pipe from the pump to the turbo : it goes out of the
pump then about 16" hose to a transmission oil cooler then 10" hose to oil
filter then about 20" 3/8 copper line

   http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8089.jpg

   --- In DIYGasTurbines@yahoogroups.com, "John WALLIS \(Racketmotorman\)"
<racketmotorman@...> wrote:
   >
   > Hi
   >
   > Sounds like the pump is struggling to pump the thicker lube when cold , it
"should?" improve as the lube warms and thins .
   >
   > But best keep a close watch on the oil pressure whilst trying to warm it ,
just in case the pump is faulty .
   >
   > Where are you taking the pressure reading from ??..................if at the
turbo ,........... and you are running "undersized" delivery tubing, the line
friction could be the problem if ambiant temps are low , the friction will
restrict flow until the lube warms , your pump could be producing a higher
pressure but the line friction reduces it by the time it reaches the turbo and
pressure pickup .
   >
   > What size delivery tubing ...........and how long is the run between pump
and turbo .??
   >
   > Cheers
   > John
   >
   >
   > ----- Original Message -----
   > From: lemegacool
   > To: DIYGasTurbines@yahoogroups.com
   > Sent: Friday, November 13, 2009 3:00 PM
   > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
   >
   >
   >
   > so i changed the oil and now the max pressure the pump will put out (cold)
is 60 psi compared to 80-90 with the 0w oil... so basically if i get it right
the pressure should go up a little when warming then it will remain enough thick
to allow the pump to push it at a decent psi... right? sorry for the stupid
question i'm tired lol
   >
   > --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@>
wrote:
   > >
   > > lol yaeh neighbors start to piss off after a little while LOL
   > >
   > > i finally bought mobil1 15w-50 oil 50$ jug but i think its a good
investment... st-50 rebuild kits are QUITE rare
   > >
   > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper <marshall01@> wrote:
   > > >
   > > >
   > > > Funny but i've run mine for half an hour and i can keep my hand on the
resorvoir quite easily maybe 120deg F . I've put an oil cooler on but havent
bothered hooking a fan to it yet , i guess if i were to run for a longer period
of time it might be an issue but i run out of fuel before the oil gets too hot
and i don't like to fill the tank with it running . how long do we play with our
jets before it is shutdown time anyways ?
   > > >
   > > > Marshall
   > > >
   > > >
   > > >
   > > > To: DIYGasTurbines@yahoogroups.com
   > > > From: hatfiedv@
   > > > Date: Wed, 11 Nov 2009 22:37:09 -0800
   > > > Subject: Re: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
   > > >
   > > >
   > > >
   > > >
   > > >
   > > > one of the reasons that a tractor has little trouble with any oil is
that
   > > > the volume of oil is considerable with large area and small porosity oil
   > > > filters and large cooling capacity. these little gas turbines have an
oil
   > > > capacity of maybe 2 gallons? this small total volume heats very quickly
and
   > > > very likely exceeds 180 degrees F. non-synthetic oil starts to carbonize
at
   > > > 160 dgrees. this is why it turns black. synthetic oils have various
flash
   > > > points of 220 to 520 degrees F. the higher the flash point, the more
   > > > durable the oil. performance specs for good oils are available on-line
from
   > > > the manfacturors. thrust bearings and especially babbit types should
   > > > maintain oil drain temps below 180 F. in order to maintain bearing
   > > > integrity.
   > > >
   > > > ----- Original Message -----
   > > > From: "Marshall Piper" <marshall01@>
   > > > To: <diygasturbines@yahoogroups.com>
   > > > Sent: Wednesday, November 11, 2009 8:30 PM
   > > > Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running
   > > > !!! vid and pics
   > > >
   > > > >
   > > > > Why don't you just try15w40 oil non synthetic we use this oil in our
   > > > tractors and combines with good results . We get many thousands of hours
of
   > > > use out of these engines without any problems and the turbo is usually
the
   > > > last thing to worry about . the oil isn't that expensive compared to
   > > > synthetic and it's alot thicker than 0w30 .
   > > > >
   > > > > Marshall
   > > > >
   > > > >
   > > > >
   > > > > To: DIYGasTurbines@yahoogroups.com
   > > > > From: simonbeausoleil@
   > > > > Date: Thu, 12 Nov 2009 01:12:06 +0000
   > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
!!!
   > > > vid and pics
   > > > >
   > > > >
   > > > >
   > > > >
   > > > >
   > > > > MANY thanks!!! lol i guess this is the 60$ jug right LOL
   > > > >
   > > > > --- In DIYGasTurbines@yahoogroups.com, "Salvatore" <saiello@> wrote:
   > > > > >
   > > > > > Both numbers are indicators of viscosity at different temperatures.
Take
   > > > a 15W-50 oil. The first indicates how thick the oil would be at winter
   > > > temperatures, the oil behaving as if it had a viscosity of "15" and the
   > > > second number tells you how thick the oil would be at operating
temperatures
   > > > if it were a "50" oil.
   > > > > >
   > > > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool"
<simonbeausoleil@>
   > > > wrote:
   > > > > > >
   > > > > > > ok so what weight should i aim for? what is the main difference
   > > > between *w-30 and *w-50? i know the first number is kinda the
thickness...
   > > > would some 10w-30 syntetic oil be engough?
   > > > > > >
   > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
   > > > \(Racketmotorman\)" <racketmotorman@> wrote:
   > > > > > > >
   > > > > > > > Hi Jon
   > > > > > > >
   > > > > > > > Yep , I'll go along with that , I used 15W-50 semi synthetic in
both
   > > > bike and kart , a little harder getting spooled up , and a little more
of a
   > > > wait to get the lube warmed so it can flow thru the finer passageways in
the
   > > > thrust bearing and provide the correct bearing support/dampering , but
   > > > closer to the correct lube for our turbos than the very thin lubes like
0-30
   > > > which if the ambiant conditions dictate, is reasonable to use , but for
most
   > > > of us in warmer climates "ordinary" weight lubes are a better compromise
.
   > > > > > > >
   > > > > > > > On a side note ..........I just received an overhaul kit for a
TL92
   > > > , my next engine ( 10/94 BB) is going to have "brass bush" bearings and
a
   > > > standard set of "bits" on the shaft to cut down the amount of work
required
   > > > , ..............anyway , the thrust bearing is HUGE compared to the one
in
   > > > my bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm wide
by
   > > > 10mm long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X 10mm
for
   > > > a total of ~420 sq mms , on a square millimetres of thrust surface per
   > > > square inch of compressor rear wall (thats producing the thrust pressure
   > > > loads), the TL92 has just on TWICE the ratio of the "fragile" TV84's
thrust
   > > > bearing , any wonder I wrecked a few of them , the guys at the turbo
   > > > overhaul shop had told me they had problems with the TV84 at high boost
   > > > levels on their racing trucks , so even with 90psi oil pressure that
fragile
   > > > thrust bearing was marginal .
   > > > > > > >
   > > > > > > > Cheers
   > > > > > > > John
   > > > > > > >
   > > > > > > > .
   > > > > > > > ----- Original Message -----
   > > > > > > > From: j m
   > > > > > > > To: DIYGasTurbines@yahoogroups.com
   > > > > > > > Sent: Wednesday, November 11, 2009 5:14 AM
   > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
   > > > running !!! vid and pics
   > > > > > > >
   > > > > > > >
   > > > > > > >
   > > > > > > > hi,i used to use 0w30 oil but now use 15w60 oil,really not that
bad
   > > > spooling up at all. it is quite expensive through!!i use it because the
   > > > place i got my turbo "freshened" recommend it.the upside is the ability
to
   > > > maintain ol pressure at reduced oil flows.
   > > > > > > > worth giving a thicker oil a try it seems :-)
   > > > > > > > regards jon
   > > > > > > >
   > > > > > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool"
   > > > <simonbeausoleil@> wrote:
   > > > > > > > >
   > > > > > > > > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!!
i
   > > > think i'll try with thicker oil... or this winter i could replace the
   > > > shurflow pump with a procon pump...
   > > > > > > > >
   > > > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
   > > > \(Racketmotorman\)" <racketmotorman@> wrote:
   > > > > > > > > >
   > > > > > > > > > Hi
   > > > > > > > > >
   > > > > > > > > > "THE" shurflo doesn't always produce the required flow once
   > > > temperatures and pressures come up , other members have experienced the
same
   > > > problems with their ST/VT-50 turbs and shurflo , the pump is "marginal"
on
   > > > bigger turbos .
   > > > > > > > > >
   > > > > > > > > > Cheers
   > > > > > > > > > John
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > > ----- Original Message -----
   > > > > > > > > > From: lemegacool
   > > > > > > > > > To: DIYGasTurbines@yahoogroups.com
   > > > > > > > > > Sent: Monday, November 09, 2009 2:16 PM
   > > > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is
FINALLY
   > > > running !!! vid and pics
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > > thanks for the answers!
   > > > > > > > > >
   > > > > > > > > > the oil pump i'm using is "THE" shurflow pump suitable for
gt
   > > > use... i run it a 12v, i might just drain the oil and replace with
5w-30.
   > > > dang what i'll do with all that expensive mobil1 oil... hmmm maybe use
it in
   > > > my turbo shopping kart LOL (not a gas turbine just a turboed honda 5.5
lol)
   > > > > > > > > >
   > > > > > > > > > yeah i kinda have some trouble sourcing a factory st-50
   > > > gasket...
   > > > > > > > > >
   > > > > > > > > > and no drain in the cc... but i have a propane pilot flame
   > > > before i juice up the diesel so basically what happened i think is that
my
   > > > pilot shutted off and didn't lit the fuel... oh well
   > > > > > > > > >
   > > > > > > > > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper
   > > > <marshall01@> wrote:
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > > Great vid's glad to see another fledgling running . About
your
   > > > questions : I think 0w30 might be a little thin but am using it myself
it
   > > > makes starting a little easier . Could you drive the pump a little
faster ?
   > > > is it pulley driven, could put a smaller pulley on the pump . I am using
a
   > > > factory gasket for the flange they are made to take the heat . I had
noticed
   > > > on your hot start vid that it looked like the engine was just about to
go to
   > > > runaway speed then you got it shut off good thing you had the leaf
blower
   > > > stuck in the intake so it couldn't get that much air or it would of over
   > > > speeded . Are you using a drain valve on the C.C. at it's lowest point ?
The
   > > > reason i ask this is that if you don't get instant ignition and have the
   > > > fuel on it will run out of the flame tube and pool inside the outer
housing
   > > > and then when you finally get it started the blast of air from the comp
will
   > > > lift all that fuel into the flame tube and you have an over speed
situation
   > > > and there isn't much you can doo about it except run like hell .
   > > > > > > > > > >
   > > > > > > > > > > Marshall
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > > To: DIYGasTurbines@yahoogroups.com
   > > > > > > > > > > From: simonbeausoleil@
   > > > > > > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
   > > > > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is
FINALLY
   > > > running !!! vid and pics
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > > thanks for the comment! :)
   > > > > > > > > > >
   > > > > > > > > > > so... basically i have two main question...
   > > > > > > > > > >
   > > > > > > > > > > 1: is 0w-30 oil is too thin?
   > > > > > > > > > >
   > > > > > > > > > > 2: what gasket material should i use on the cc's flange?
   > > > > > > > > > >
   > > > > > > > > > > thanks!
   > > > > > > > > > >
   > > > > > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
   > > > \(Racketmotorman\)" <racketmotorman@> wrote:
   > > > > > > > > > > >
   > > > > > > > > > > > Hi
   > > > > > > > > > > >
   > > > > > > > > > > > Congratulations :-))
   > > > > > > > > > > >
   > > > > > > > > > > > Just some minor teething problems to sort out
   > > > ..................LOL....we've all had those .................good one
   > > > > > > > > > > >
   > > > > > > > > > > > Cheeers
   > > > > > > > > > > > John
   > > > > > > > > > > >
   > > > > > > > > > > >
   > > > > > > > > > > > ----- Original Message -----
   > > > > > > > > > > > From: lemegacool
   > > > > > > > > > > > To: DIYGasTurbines@yahoogroups.com
   > > > > > > > > > > > Sent: Monday, November 09, 2009 7:44 AM
   > > > > > > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is
FINALLY
   > > > running !!! vid and pics
   > > > > > > > > > > >
   > > > > > > > > > > >
   > > > > > > > > > > >
   > > > > > > > > > > > i finally got my big gas turbine to run! omg its such a
   > > > feeling being close to that thing when its spinning by itself! ok i'm
now an
   > > > addict lol
   > > > > > > > > > > >
   > > > > > > > > > > > http://www.youtube.com/watch?v=Nq8wk8EJBfk
   > > > > > > > > > > >
   > > > > > > > > > > > still some trouble happened...
   > > > > > > > > > > >
   > > > > > > > > > > > when the oil warmed up the pump wasnt able to push more
than
   > > > 40psi with the bypass valve completely closed... i suspect 0W-30 oil is
   > > > maybe too thin? i would really like to keep the oil press at 50-55 psi
   > > > > > > > > > > >
   > > > > > > > > > > > second at the end of the vid the compressor pipe blew
off in
   > > > my face LOL now i know what 25psi of boost in a 4" pipe feels like lol
the
   > > > thing is my air inlet on the combustion chamber is 3.5" and my rubber
   > > > coupler is 4" so i wraped some duct tape around the air inlet to enlarge
   > > > it... lol not a good idea it blew righ of... going to make a steel
enlarger
   > > > tomorrow at work with the CNC plasma
   > > > > > > > > > > >
   > > > > > > > > > > >
   > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
   > > > > > > > > > > >
   > > > > > > > > > > > also the "hi temp" gasket maker started to melt and
caused
   > > > some air pressure loss... what do you guys use for the turbine's flange
   > > > gasket???
   > > > > > > > > > > >
   > > > > > > > > > > > and finally i did a hot start... even with all the
   > > > precautions i took
   > > > > > > > > > > > DUDE its SCARY!!!
   > > > > > > > > > > >
   > > > > > > > > > > > http://www.youtube.com/watch?v=j1F0BxJ9Bf8
   > > > > > > > > > > >
   > > > > > > > > > > >
   > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
   > > > > > > > > > > >
   > > > > > > > > > > >
   > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
   > > > > > > > > > > >
   > > > > > > > > > > >
   > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8098.jpg[/IMG]
   > > > > > > > > > > >
   > > > > > > > > > > >
   > > > > > > > > > > >
   > > > > > > > > > > >
   > > > > > > > > > > >
   > > > > > > > > > > > [Non-text portions of this message have been removed]
   > > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > > __________________________________________________________
   > > > > > > > > > > Ready. Set. Get a great deal on Windows 7. See fantastic
deals
   > > > on Windows 7 now
   > > > > > > > > > > http://go.microsoft.com/?linkid=9691818
   > > > > > > > > > >
   > > > > > > > > > > [Non-text portions of this message have been removed]
   > > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > > [Non-text portions of this message have been removed]
   > > > > > > > > >
   > > > > > > > >
   > > > > > > >
   > > > > > > >
   > > > > > > >
   > > > > > > >
   > > > > > > >
   > > > > > > > [Non-text portions of this message have been removed]
   > > > > > > >
   > > > > > >
   > > > > >
   > > > >
   > > > >
   > > > >
   > > > >
   > > > >
   > > > > __________________________________________________________
   > > > > Windows Live: Friends get your Flickr, Yelp, and Digg updates when
they
   > > > e-mail you.
   > > > > http://go.microsoft.com/?linkid=9691817
   > > > >
   > > > > [Non-text portions of this message have been removed]
   > > > >
   > > > >
   > > > >
   > > > > ------------------------------------
   > > > >
   > > > > Yahoo! Groups Links
   > > > >
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   >





[Non-text portions of this message have been removed]

my tubing is 3/8 copper and the oil pickup can be seen in the pic included .
there is quite a lenght of pipe from the pump to the turbo : it goes out of the
pump then about 16" hose to a transmission oil cooler then 10" hose to oil
filter then about 20" 3/8 copper line

http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8089.jpg

--- In DIYGasTurbines@yahoogroups.com, "John WALLIS \(Racketmotorman\)"
<racketmotorman@...> wrote:
>
> Hi
>
> Sounds like the pump is struggling to pump the thicker lube  when cold , it
"should?"  improve as the lube warms and thins .
>
> But best keep a close watch on the oil pressure  whilst trying to warm it , 
just in case the pump is faulty .
>
> Where are you taking the pressure reading from ??..................if at the
turbo  ,........... and you are running "undersized" delivery tubing,  the line
friction could be the problem if ambiant temps are low , the friction will
restrict flow until the lube warms , your pump could be producing a higher
pressure but the line friction reduces it by the time it reaches the turbo and
pressure pickup .
>
> What size delivery tubing ...........and how long is the run between pump and
turbo .??
>
> Cheers
> John
>
>
>   ----- Original Message -----
>   From: lemegacool
>   To: DIYGasTurbines@yahoogroups.com
>   Sent: Friday, November 13, 2009 3:00 PM
>   Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
>
>
>
>   so i changed the oil and now the max pressure the pump will put out (cold)
is 60 psi compared to 80-90 with the 0w oil... so basically if i get it right
the pressure should go up a little when warming then it will remain enough thick
to allow the pump to push it at a decent psi... right? sorry for the stupid
question i'm tired lol
>
>   --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@>
wrote:
>   >
>   > lol yaeh neighbors start to piss off after a little while LOL
>   >
>   > i finally bought mobil1 15w-50 oil 50$ jug but i think its a good
investment... st-50 rebuild kits are QUITE rare
>   >
>   > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper <marshall01@> wrote:
>   > >
>   > >
>   > > Funny but i've run mine for half an hour and i can keep my hand on the
resorvoir quite easily maybe 120deg F . I've put an oil cooler on but havent
bothered hooking a fan to it yet , i guess if i were to run for a longer period
of time it might be an issue but i run out of fuel before the oil gets too hot
and i don't like to fill the tank with it running . how long do we play with our
jets before it is shutdown time anyways ?
>   > >
>   > > Marshall
>   > >
>   > >
>   > >
>   > > To: DIYGasTurbines@yahoogroups.com
>   > > From: hatfiedv@
>   > > Date: Wed, 11 Nov 2009 22:37:09 -0800
>   > > Subject: Re: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
>   > >
>   > >
>   > >
>   > >
>   > >
>   > > one of the reasons that a tractor has little trouble with any oil is
that
>   > > the volume of oil is considerable with large area and small porosity oil
>   > > filters and large cooling capacity. these little gas turbines have an
oil
>   > > capacity of maybe 2 gallons? this small total volume heats very quickly
and
>   > > very likely exceeds 180 degrees F. non-synthetic oil starts to carbonize
at
>   > > 160 dgrees. this is why it turns black. synthetic oils have various
flash
>   > > points of 220 to 520 degrees F. the higher the flash point, the more
>   > > durable the oil. performance specs for good oils are available on-line
from
>   > > the manfacturors. thrust bearings and especially babbit types should
>   > > maintain oil drain temps below 180 F. in order to maintain bearing
>   > > integrity.
>   > >
>   > > ----- Original Message -----
>   > > From: "Marshall Piper" <marshall01@>
>   > > To: <diygasturbines@yahoogroups.com>
>   > > Sent: Wednesday, November 11, 2009 8:30 PM
>   > > Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running
>   > > !!! vid and pics
>   > >
>   > > >
>   > > > Why don't you just try15w40 oil non synthetic we use this oil in our
>   > > tractors and combines with good results . We get many thousands of hours
of
>   > > use out of these engines without any problems and the turbo is usually
the
>   > > last thing to worry about . the oil isn't that expensive compared to
>   > > synthetic and it's alot thicker than 0w30 .
>   > > >
>   > > > Marshall
>   > > >
>   > > >
>   > > >
>   > > > To: DIYGasTurbines@yahoogroups.com
>   > > > From: simonbeausoleil@
>   > > > Date: Thu, 12 Nov 2009 01:12:06 +0000
>   > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
!!!
>   > > vid and pics
>   > > >
>   > > >
>   > > >
>   > > >
>   > > >
>   > > > MANY thanks!!! lol i guess this is the 60$ jug right LOL
>   > > >
>   > > > --- In DIYGasTurbines@yahoogroups.com, "Salvatore" <saiello@> wrote:
>   > > > >
>   > > > > Both numbers are indicators of viscosity at different temperatures.
Take
>   > > a 15W-50 oil. The first indicates how thick the oil would be at winter
>   > > temperatures, the oil behaving as if it had a viscosity of "15" and the
>   > > second number tells you how thick the oil would be at operating
temperatures
>   > > if it were a "50" oil.
>   > > > >
>   > > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool"
<simonbeausoleil@>
>   > > wrote:
>   > > > > >
>   > > > > > ok so what weight should i aim for? what is the main difference
>   > > between *w-30 and *w-50? i know the first number is kinda the
thickness...
>   > > would some 10w-30 syntetic oil be engough?
>   > > > > >
>   > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
>   > > \(Racketmotorman\)" <racketmotorman@> wrote:
>   > > > > > >
>   > > > > > > Hi Jon
>   > > > > > >
>   > > > > > > Yep , I'll go along with that , I used 15W-50 semi synthetic in
both
>   > > bike and kart , a little harder getting spooled up , and a little more
of a
>   > > wait to get the lube warmed so it can flow thru the finer passageways in
the
>   > > thrust bearing and provide the correct bearing support/dampering , but
>   > > closer to the correct lube for our turbos than the very thin lubes like
0-30
>   > > which if the ambiant conditions dictate, is reasonable to use , but for
most
>   > > of us in warmer climates "ordinary" weight lubes are a better compromise
.
>   > > > > > >
>   > > > > > > On a side note ..........I just received an overhaul kit for a
TL92
>   > > , my next engine ( 10/94 BB) is going to have "brass bush" bearings and
a
>   > > standard set of "bits" on the shaft to cut down the amount of work
required
>   > > , ..............anyway , the thrust bearing is HUGE compared to the one
in
>   > > my bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm wide
by
>   > > 10mm long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X 10mm
for
>   > > a total of ~420 sq mms , on a square millimetres of thrust surface per
>   > > square inch of compressor rear wall (thats producing the thrust pressure
>   > > loads), the TL92 has just on TWICE the ratio of the "fragile" TV84's
thrust
>   > > bearing , any wonder I wrecked a few of them , the guys at the turbo
>   > > overhaul shop had told me they had problems with the TV84 at high boost
>   > > levels on their racing trucks , so even with 90psi oil pressure that
fragile
>   > > thrust bearing was marginal .
>   > > > > > >
>   > > > > > > Cheers
>   > > > > > > John
>   > > > > > >
>   > > > > > > .
>   > > > > > > ----- Original Message -----
>   > > > > > > From: j m
>   > > > > > > To: DIYGasTurbines@yahoogroups.com
>   > > > > > > Sent: Wednesday, November 11, 2009 5:14 AM
>   > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
>   > > running !!! vid and pics
>   > > > > > >
>   > > > > > >
>   > > > > > >
>   > > > > > > hi,i used to use 0w30 oil but now use 15w60 oil,really not that
bad
>   > > spooling up at all. it is quite expensive through!!i use it because the
>   > > place i got my turbo "freshened" recommend it.the upside is the ability
to
>   > > maintain ol pressure at reduced oil flows.
>   > > > > > > worth giving a thicker oil a try it seems :-)
>   > > > > > > regards jon
>   > > > > > >
>   > > > > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool"
>   > > <simonbeausoleil@> wrote:
>   > > > > > > >
>   > > > > > > > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!!
i
>   > > think i'll try with thicker oil... or this winter i could replace the
>   > > shurflow pump with a procon pump...
>   > > > > > > >
>   > > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
>   > > \(Racketmotorman\)" <racketmotorman@> wrote:
>   > > > > > > > >
>   > > > > > > > > Hi
>   > > > > > > > >
>   > > > > > > > > "THE" shurflo doesn't always produce the required flow once
>   > > temperatures and pressures come up , other members have experienced the
same
>   > > problems with their ST/VT-50 turbs and shurflo , the pump is "marginal"
on
>   > > bigger turbos .
>   > > > > > > > >
>   > > > > > > > > Cheers
>   > > > > > > > > John
>   > > > > > > > >
>   > > > > > > > >
>   > > > > > > > > ----- Original Message -----
>   > > > > > > > > From: lemegacool
>   > > > > > > > > To: DIYGasTurbines@yahoogroups.com
>   > > > > > > > > Sent: Monday, November 09, 2009 2:16 PM
>   > > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is
FINALLY
>   > > running !!! vid and pics
>   > > > > > > > >
>   > > > > > > > >
>   > > > > > > > >
>   > > > > > > > > thanks for the answers!
>   > > > > > > > >
>   > > > > > > > > the oil pump i'm using is "THE" shurflow pump suitable for
gt
>   > > use... i run it a 12v, i might just drain the oil and replace with
5w-30.
>   > > dang what i'll do with all that expensive mobil1 oil... hmmm maybe use
it in
>   > > my turbo shopping kart LOL (not a gas turbine just a turboed honda 5.5
lol)
>   > > > > > > > >
>   > > > > > > > > yeah i kinda have some trouble sourcing a factory st-50
>   > > gasket...
>   > > > > > > > >
>   > > > > > > > > and no drain in the cc... but i have a propane pilot flame
>   > > before i juice up the diesel so basically what happened i think is that
my
>   > > pilot shutted off and didn't lit the fuel... oh well
>   > > > > > > > >
>   > > > > > > > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper
>   > > <marshall01@> wrote:
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > > Great vid's glad to see another fledgling running . About
your
>   > > questions : I think 0w30 might be a little thin but am using it myself
it
>   > > makes starting a little easier . Could you drive the pump a little
faster ?
>   > > is it pulley driven, could put a smaller pulley on the pump . I am using
a
>   > > factory gasket for the flange they are made to take the heat . I had
noticed
>   > > on your hot start vid that it looked like the engine was just about to
go to
>   > > runaway speed then you got it shut off good thing you had the leaf
blower
>   > > stuck in the intake so it couldn't get that much air or it would of over
>   > > speeded . Are you using a drain valve on the C.C. at it's lowest point ?
The
>   > > reason i ask this is that if you don't get instant ignition and have the
>   > > fuel on it will run out of the flame tube and pool inside the outer
housing
>   > > and then when you finally get it started the blast of air from the comp
will
>   > > lift all that fuel into the flame tube and you have an over speed
situation
>   > > and there isn't much you can doo about it except run like hell .
>   > > > > > > > > >
>   > > > > > > > > > Marshall
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > > To: DIYGasTurbines@yahoogroups.com
>   > > > > > > > > > From: simonbeausoleil@
>   > > > > > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
>   > > > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is
FINALLY
>   > > running !!! vid and pics
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > >
>   > > > > > > > > > thanks for the comment! :)
>   > > > > > > > > >
>   > > > > > > > > > so... basically i have two main question...
>   > > > > > > > > >
>   > > > > > > > > > 1: is 0w-30 oil is too thin?
>   > > > > > > > > >
>   > > > > > > > > > 2: what gasket material should i use on the cc's flange?
>   > > > > > > > > >
>   > > > > > > > > > thanks!
>   > > > > > > > > >
>   > > > > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
>   > > \(Racketmotorman\)" <racketmotorman@> wrote:
>   > > > > > > > > > >
>   > > > > > > > > > > Hi
>   > > > > > > > > > >
>   > > > > > > > > > > Congratulations :-))
>   > > > > > > > > > >
>   > > > > > > > > > > Just some minor teething problems to sort out
>   > > ..................LOL....we've all had those .................good one
>   > > > > > > > > > >
>   > > > > > > > > > > Cheeers
>   > > > > > > > > > > John
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > > ----- Original Message -----
>   > > > > > > > > > > From: lemegacool
>   > > > > > > > > > > To: DIYGasTurbines@yahoogroups.com
>   > > > > > > > > > > Sent: Monday, November 09, 2009 7:44 AM
>   > > > > > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is
FINALLY
>   > > running !!! vid and pics
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > > > > > > > > > > i finally got my big gas turbine to run! omg its such a
>   > > feeling being close to that thing when its spinning by itself! ok i'm
now an
>   > > addict lol
>   > > > > > > > > > >
>   > > > > > > > > > > http://www.youtube.com/watch?v=Nq8wk8EJBfk
>   > > > > > > > > > >
>   > > > > > > > > > > still some trouble happened...
>   > > > > > > > > > >
>   > > > > > > > > > > when the oil warmed up the pump wasnt able to push more
than
>   > > 40psi with the bypass valve completely closed... i suspect 0W-30 oil is
>   > > maybe too thin? i would really like to keep the oil press at 50-55 psi
>   > > > > > > > > > >
>   > > > > > > > > > > second at the end of the vid the compressor pipe blew
off in
>   > > my face LOL now i know what 25psi of boost in a 4" pipe feels like lol
the
>   > > thing is my air inlet on the combustion chamber is 3.5" and my rubber
>   > > coupler is 4" so i wraped some duct tape around the air inlet to enlarge
>   > > it... lol not a good idea it blew righ of... going to make a steel
enlarger
>   > > tomorrow at work with the CNC plasma
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
>   > > > > > > > > > >
>   > > > > > > > > > > also the "hi temp" gasket maker started to melt and
caused
>   > > some air pressure loss... what do you guys use for the turbine's flange
>   > > gasket???
>   > > > > > > > > > >
>   > > > > > > > > > > and finally i did a hot start... even with all the
>   > > precautions i took
>   > > > > > > > > > > DUDE its SCARY!!!
>   > > > > > > > > > >
>   > > > > > > > > > > http://www.youtube.com/watch?v=j1F0BxJ9Bf8
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
>   > > > > > > > > > >
>   > > > > > > > > > >
>   > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8098.jpg[/IMG]
>   > > > > > > > > > >
>   > > > > > > > > > >
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>   > > > > > > > > > >
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>   > > > > > > > > >
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Hi Jake

The corrected flow equation is from a Garrett document I found somewhere , can't
remember where , but probably on their Web Site years ago .

The corrected flow for the turbine stage  is ......actual flow  multiplied by
the  square root of ( absolute temperature divided by standard
temp).................with that all divided by the pressure ratio going into the
turb stage .

In Eddies case , I looked at the comp map
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT45/GT4508R.\
htm  and found that at a PR of 3.5:1 it flowed 90 lbs/min  at the best point in
that 76% island on the map ,    I took the 90 lbs/min  and multiplied it by  the
square root of ( 1500 deg F the TIT plus 460 divided by 519)  = 90 times sq root
of 3.776...  = 90 X 1.943 = 174.89 .....................then divided that by the
3.5 PR going into the stage ,  so 174 div by 3.5 =  49.97   ..........lets call
it 50 lbs/min

The PR required across the turbine  will be ~2:1  for a turbo running those
temps/pressures/efficiencies , this is what I've found over the years , the
actual maths are in the Rules of Thumb ( RoTs) in Files >Starter Pack .

By going to the turb map on
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT45/GT4508R.\
htm   we find that at a 2:1 PR we have a corrected flow of ~47 lbs/min  with the
1.44 A/R turb housing .

To do the maths properly I'd have to know pressure drop across the flametube  so
I'd have the correct PR going into the turb stage , but as the stage is already
a bit small   when using the 3.5:1 PR  going in , it'll be even more undersized
if the pressure ratio is smaller downstream of those flametube losses , so
theres no point in doing any further maths to find a more suitable scroll , the
1.44 A/R is the biggest .

Ideally that turbo needs a slightly larger turbine wheel, similar to that in the
GT47
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT47/GT4708R_\
763740-1.htm , but even the GT47 has problems because its biggest turb scroll is
only a 1.39 , it needs something around a 1.45  to be a correct match .

Where did I learn it  ???  .............."here and there"  over the past  20
years ,   the info is in the RoTs ,  most of it should be close enough for us 
:-))

Cheers
John

----- Original Message -----
   From: Jake L.
   To: DIYGasTurbines@yahoogroups.com
   Sent: Friday, November 13, 2009 4:22 PM
   Subject: Re: [DIYGasTurbines] now no choice



   John,
   How do you do the maths to arrive at the corrected turbine airflow?  I see
that you used Comp efficiency, PR, and TIT...But how do you actually put it all
together?  Where did you learn all of this stuff?
   Thanks, Jake

   --- On Thu, 11/12/09, John WALLIS (Racketmotorman) <racketmotorman@...>
wrote:

   From: John WALLIS (Racketmotorman) <racketmotorman@...>
   Subject: Re: [DIYGasTurbines] now no choice
   To: DIYGasTurbines@yahoogroups.com
   Date: Thursday, November 12, 2009, 8:16 PM



   Hi Eddy

   As I mentioned in an earlier email , having twin/split inlet on the turb
scroll reduces efficiency .

   If you look at the Turbine Flow "map" in the Link http://www.turbobyg
arrett.com/ turbobygarrett/ catelog/Turbocha rgers/GT45/ GT4508R.htm the
Corrected Flow ranges between ~38 lbs/min and 47 lbs/min at a 2:1 pressure ratio
depending on the scroll A/R used , from the 1.01 up to the 1.44 A/R

   Assuming you'd be running at a PR of ~3.5 :! ( ~37 psi) and 90 lbs/min at 76%
effic and with a pressure ratio of ~2:1 across the turbine stage with a TIT of
1500 F and nil losses across the flametube , you'd have a turbine inlet
corrected flow of ~50 lbs/min , this is slightly higher than the corrected flow
able to be processed by the largest scroll A/R the 1.44 A/R , you'd either have
to reduce the mass flow by a bit or reduce the temperature , alternately , an
increase in rpm and pressure ratio could also bring supply and availability to
process , back into balance .

   You'll certainly need to have the GT45 turbos equiped with the 1.44 A/R
turbine scrolls .

   Cheers

   John

   ----- Original Message -----

   From: Eddy Dupuis

   To: DIYGasTurbines@ yahoogroups. com

   Sent: Friday, November 13, 2009 8:09 AM

   Subject: Re: [DIYGasTurbines] now no choice

   are there nice turbo for a project ?

   are they big enough ??pounds? you told me there diferent turbine scroll what
is better small or large? i make sure to have the same numbers thank a lot for
your advice and the time you take to give it to me, i do aprreciate

   From: John WALLIS (Racketmotorman) <racketmotorman@ gmail.com>

   To: DIYGasTurbines@ yahoogroups. com

   Sent: Thu, November 12, 2009 2:26:07 PM

   Subject: Re: [DIYGasTurbines] now no choice

   Hi Eddy

   Which one of the GT45 family http://www.turbobyg arrett.com/ turbobygarrett/
catelog/Turbocha rgers/GT45/ GT4508R.htm have you got , depending on the turbine
scroll A/R being used you'll have different flow/performance .

   Cheers

   John

   ----- Original Message -----

   From: Eddy Dupuis

   To: diygasturbines@ yahoogroups. com

   Sent: Friday, November 13, 2009 3:09 AM

   Subject: [DIYGasTurbines] now no choice

   i deal with a compagnie and they make me a great deal on two GT45 from garrett
brand new one i aint gona refuse

   and it be good for my project

   eddy

   ____________ _________ _________ _________ _________ _________ _

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   [Non-text portions of this message have been removed]





[Non-text portions of this message have been removed]

hello marshall back there it is not a problem to try your turbine if you dont
live in town you can do 150miles before you find a house and sometime nobody
live in lolllll


eddy_dupuis2000




________________________________
From: lemegacool <simonbeausoleil@...>
To: DIYGasTurbines@yahoogroups.com
Sent: Thu, November 12, 2009 7:13:22 PM
Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!! vid
and pics


lol yaeh neighbors start to piss off after a little while LOL

i finally bought mobil1 15w-50 oil 50$ jug but i think its a good investment.. .
st-50 rebuild kits are QUITE rare

--- In DIYGasTurbines@ yahoogroups. com, Marshall Piper <marshall01@ ...> wrote:
>
>
> Funny but i've run mine for half an hour and i can keep my hand on the
resorvoir quite easily maybe 120deg F . I've put an oil cooler on but havent
bothered hooking a fan to it yet , i guess if i were to run for a longer period
of time it might be an issue but i run out of fuel before the oil gets too hot
and i don't like to fill the tank with it running . how long do we play with our
jets before it is shutdown time anyways ?
>
> Marshall
>
>
>
> To: DIYGasTurbines@ yahoogroups. com
> From: hatfiedv@...
> Date: Wed, 11 Nov 2009 22:37:09 -0800
> Subject: Re: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
>
>
>
>
>
> one of the reasons that a tractor has little trouble with any oil is that
> the volume of oil is considerable with large area and small porosity oil
> filters and large cooling capacity. these little gas turbines have an oil
> capacity of maybe 2 gallons? this small total volume heats very quickly and
> very likely exceeds 180 degrees F. non-synthetic oil starts to carbonize at
> 160 dgrees. this is why it turns black. synthetic oils have various flash
> points of 220 to 520 degrees F. the higher the flash point, the more
> durable the oil. performance specs for good oils are available on-line from
> the manfacturors. thrust bearings and especially babbit types should
> maintain oil drain temps below 180 F. in order to maintain bearing
> integrity.
>
> ----- Original Message -----
> From: "Marshall Piper" <marshall01@ ...>
> To: <diygasturbines@ yahoogroups. com>
> Sent: Wednesday, November 11, 2009 8:30 PM
> Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
> !!! vid and pics
>
> >
> > Why don't you just try15w40 oil non synthetic we use this oil in our
> tractors and combines with good results . We get many thousands of hours of
> use out of these engines without any problems and the turbo is usually the
> last thing to worry about . the oil isn't that expensive compared to
> synthetic and it's alot thicker than 0w30 .
> >
> > Marshall
> >
> >
> >
> > To: DIYGasTurbines@ yahoogroups. com
> > From: simonbeausoleil@ ...
> > Date: Thu, 12 Nov 2009 01:12:06 +0000
> > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
> vid and pics
> >
> >
> >
> >
> >
> > MANY thanks!!! lol i guess this is the 60$ jug right LOL
> >
> > --- In DIYGasTurbines@ yahoogroups. com, "Salvatore" <saiello@> wrote:
> > >
> > > Both numbers are indicators of viscosity at different temperatures. Take
> a 15W-50 oil. The first indicates how thick the oil would be at winter
> temperatures, the oil behaving as if it had a viscosity of "15" and the
> second number tells you how thick the oil would be at operating temperatures
> if it were a "50" oil.
> > >
> > > --- In DIYGasTurbines@ yahoogroups. com, "lemegacool" <simonbeausoleil@ >
> wrote:
> > > >
> > > > ok so what weight should i aim for? what is the main difference
> between *w-30 and *w-50? i know the first number is kinda the thickness...
> would some 10w-30 syntetic oil be engough?
> > > >
> > > > --- In DIYGasTurbines@ yahoogroups. com, "John WALLIS
> \(Racketmotorman\ )" <racketmotorman@ > wrote:
> > > > >
> > > > > Hi Jon
> > > > >
> > > > > Yep , I'll go along with that , I used 15W-50 semi synthetic in both
> bike and kart , a little harder getting spooled up , and a little more of a
> wait to get the lube warmed so it can flow thru the finer passageways in the
> thrust bearing and provide the correct bearing support/dampering , but
> closer to the correct lube for our turbos than the very thin lubes like 0-30
> which if the ambiant conditions dictate, is reasonable to use , but for most
> of us in warmer climates "ordinary" weight lubes are a better compromise .
> > > > >
> > > > > On a side note ..........I just received an overhaul kit for a TL92
> , my next engine ( 10/94 BB) is going to have "brass bush" bearings and a
> standard set of "bits" on the shaft to cut down the amount of work required
> , ............ ..anyway , the thrust bearing is HUGE compared to the one in
> my bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm wide by
> 10mm long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X 10mm for
> a total of ~420 sq mms , on a square millimetres of thrust surface per
> square inch of compressor rear wall (thats producing the thrust pressure
> loads), the TL92 has just on TWICE the ratio of the "fragile" TV84's thrust
> bearing , any wonder I wrecked a few of them , the guys at the turbo
> overhaul shop had told me they had problems with the TV84 at high boost
> levels on their racing trucks , so even with 90psi oil pressure that fragile
> thrust bearing was marginal .
> > > > >
> > > > > Cheers
> > > > > John
> > > > >
> > > > > .
> > > > > ----- Original Message -----
> > > > > From: j m
> > > > > To: DIYGasTurbines@ yahoogroups. com
> > > > > Sent: Wednesday, November 11, 2009 5:14 AM
> > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
> running !!! vid and pics
> > > > >
> > > > >
> > > > >
> > > > > hi,i used to use 0w30 oil but now use 15w60 oil,really not that bad
> spooling up at all. it is quite expensive through!!i use it because the
> place i got my turbo "freshened" recommend it.the upside is the ability to
> maintain ol pressure at reduced oil flows.
> > > > > worth giving a thicker oil a try it seems :-)
> > > > > regards jon
> > > > >
> > > > > --- In DIYGasTurbines@ yahoogroups. com, "lemegacool"
> <simonbeausoleil@ > wrote:
> > > > > >
> > > > > > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!! i
> think i'll try with thicker oil... or this winter i could replace the
> shurflow pump with a procon pump...
> > > > > >
> > > > > > --- In DIYGasTurbines@ yahoogroups. com, "John WALLIS
> \(Racketmotorman\ )" <racketmotorman@ > wrote:
> > > > > > >
> > > > > > > Hi
> > > > > > >
> > > > > > > "THE" shurflo doesn't always produce the required flow once
> temperatures and pressures come up , other members have experienced the same
> problems with their ST/VT-50 turbs and shurflo , the pump is "marginal" on
> bigger turbos .
> > > > > > >
> > > > > > > Cheers
> > > > > > > John
> > > > > > >
> > > > > > >
> > > > > > > ----- Original Message -----
> > > > > > > From: lemegacool
> > > > > > > To: DIYGasTurbines@ yahoogroups. com
> > > > > > > Sent: Monday, November 09, 2009 2:16 PM
> > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
> running !!! vid and pics
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > thanks for the answers!
> > > > > > >
> > > > > > > the oil pump i'm using is "THE" shurflow pump suitable for gt
> use... i run it a 12v, i might just drain the oil and replace with 5w-30.
> dang what i'll do with all that expensive mobil1 oil... hmmm maybe use it in
> my turbo shopping kart LOL (not a gas turbine just a turboed honda 5.5 lol)
> > > > > > >
> > > > > > > yeah i kinda have some trouble sourcing a factory st-50
> gasket...
> > > > > > >
> > > > > > > and no drain in the cc... but i have a propane pilot flame
> before i juice up the diesel so basically what happened i think is that my
> pilot shutted off and didn't lit the fuel... oh well
> > > > > > >
> > > > > > > --- In DIYGasTurbines@ yahoogroups. com, Marshall Piper
> <marshall01@ > wrote:
> > > > > > > >
> > > > > > > >
> > > > > > > > Great vid's glad to see another fledgling running . About your
> questions : I think 0w30 might be a little thin but am using it myself it
> makes starting a little easier . Could you drive the pump a little faster ?
> is it pulley driven, could put a smaller pulley on the pump . I am using a
> factory gasket for the flange they are made to take the heat . I had noticed
> on your hot start vid that it looked like the engine was just about to go to
> runaway speed then you got it shut off good thing you had the leaf blower
> stuck in the intake so it couldn't get that much air or it would of over
> speeded . Are you using a drain valve on the C.C. at it's lowest point ? The
> reason i ask this is that if you don't get instant ignition and have the
> fuel on it will run out of the flame tube and pool inside the outer housing
> and then when you finally get it started the blast of air from the comp will
> lift all that fuel into the flame tube and you have an over speed situation
> and there isn't much you can doo about it except run like hell .
> > > > > > > >
> > > > > > > > Marshall
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > To: DIYGasTurbines@ yahoogroups. com
> > > > > > > > From: simonbeausoleil@
> > > > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
> > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
> running !!! vid and pics
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > thanks for the comment! :)
> > > > > > > >
> > > > > > > > so... basically i have two main question...
> > > > > > > >
> > > > > > > > 1: is 0w-30 oil is too thin?
> > > > > > > >
> > > > > > > > 2: what gasket material should i use on the cc's flange?
> > > > > > > >
> > > > > > > > thanks!
> > > > > > > >
> > > > > > > > --- In DIYGasTurbines@ yahoogroups. com, "John WALLIS
> \(Racketmotorman\ )" <racketmotorman@ > wrote:
> > > > > > > > >
> > > > > > > > > Hi
> > > > > > > > >
> > > > > > > > > Congratulations :-))
> > > > > > > > >
> > > > > > > > > Just some minor teething problems to sort out
> ............ ......LOL. ...we've all had those ............ .....good one
> > > > > > > > >
> > > > > > > > > Cheeers
> > > > > > > > > John
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > ----- Original Message -----
> > > > > > > > > From: lemegacool
> > > > > > > > > To: DIYGasTurbines@ yahoogroups. com
> > > > > > > > > Sent: Monday, November 09, 2009 7:44 AM
> > > > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is FINALLY
> running !!! vid and pics
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > i finally got my big gas turbine to run! omg its such a
> feeling being close to that thing when its spinning by itself! ok i'm now an
> addict lol
> > > > > > > > >
> > > > > > > > > http://www.youtube. com/watch? v=Nq8wk8EJBfk
> > > > > > > > >
> > > > > > > > > still some trouble happened...
> > > > > > > > >
> > > > > > > > > when the oil warmed up the pump wasnt able to push more than
> 40psi with the bypass valve completely closed... i suspect 0W-30 oil is
> maybe too thin? i would really like to keep the oil press at 50-55 psi
> > > > > > > > >
> > > > > > > > > second at the end of the vid the compressor pipe blew off in
> my face LOL now i know what 25psi of boost in a 4" pipe feels like lol the
> thing is my air inlet on the combustion chamber is 3.5" and my rubber
> coupler is 4" so i wraped some duct tape around the air inlet to enlarge
> it... lol not a good idea it blew righ of... going to make a steel enlarger
> tomorrow at work with the CNC plasma
> > > > > > > > >
> > > > > > > > >
> [IMG]http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8147.
jpg[/IMG]
> > > > > > > > >
> > > > > > > > > also the "hi temp" gasket maker started to melt and caused
> some air pressure loss... what do you guys use for the turbine's flange
> gasket???
> > > > > > > > >
> > > > > > > > > and finally i did a hot start... even with all the
> precautions i took
> > > > > > > > > DUDE its SCARY!!!
> > > > > > > > >
> > > > > > > > > http://www.youtube. com/watch? v=j1F0BxJ9Bf8
> > > > > > > > >
> > > > > > > > >
> [IMG]http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8147.
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> > > > > > > > >
> > > > > > > > >
> [IMG]http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8147.
jpg[/IMG]
> > > > > > > > >
> > > > > > > > >
> [IMG]http://i426. photobucket. com/albums/ pp345/lemegacool /IMG_8098.
jpg[/IMG]
> > > > > > > > >
> > > > > > > > >
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> > > > > > > > >
> > > > > > > > > [Non-text portions of this message have been removed]
> > > > > > > > >
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> > > > > > > >
> > > > > > > >
> > > > > > > >
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[Non-text portions of this message have been removed]

hey! thank you very much this is something good ,gona keep that one
eddy
www.eddy-dupuis2000.com





________________________________
From: radroy92 <rminnich@...>
To: DIYGasTurbines@yahoogroups.com
Sent: Thu, November 12, 2009 12:40:14 PM
Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
Graphite Gasket in Canada


Hi,

Contact;

All Custom Gasket & Materials Ltd.
355 Watline Avenue, Mississauga
Ontario, Canada
L4Z 1P3

Phone: 905-507-4580
Fax: 905-507-4589

Web: http://www.allcusto mgasket.com

They carry everything including flexible graphite.

See if they will sell direct or if they have dealers in Canada.

FYI all I did was Google -graphite gasket in canada-.

Good luck,

Roy


--- In DIYGasTurbines@ yahoogroups. com, "lemegacool" <simonbeausoleil@ ...>
wrote:
>
> thanks all!!! unfortunately i cant order from mc master since i'm in canada...
heh! i'll give the exhaust paste a try i guess. and ok i'll look into that kind
of oil!
>
> many thanks for the answers!
>
>
> > > >   >
> > > >   >
> > > >   > thanks for the comment! :)
> > > >   >
> > > >   > so... basically i have two main question...
> > > >   >
> > > >   > 1: is 0w-30 oil is too thin?
> > > >   >
> > > >   > 2: what gasket material should i use on the cc's flange?
> > > >   >
> > > >   > thanks!
> > > >   >





       __________________________________________________________________
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[Non-text portions of this message have been removed]

John,
How do you do the maths to arrive at the corrected turbine airflow?  I see that
you used Comp efficiency, PR, and TIT...But how do you actually put it all
together?  Where did you learn all of this stuff? 
Thanks, Jake

--- On Thu, 11/12/09, John WALLIS (Racketmotorman) <racketmotorman@...>
wrote:

From: John WALLIS (Racketmotorman) <racketmotorman@...>
Subject: Re: [DIYGasTurbines] now no choice
To: DIYGasTurbines@yahoogroups.com
Date: Thursday, November 12, 2009, 8:16 PM







 









       Hi Eddy



As I mentioned in an earlier email , having twin/split inlet on the turb scroll
reduces efficiency .



If you look at the Turbine Flow "map" in the Link http://www.turbobyg
arrett.com/ turbobygarrett/ catelog/Turbocha rgers/GT45/ GT4508R.htm the
Corrected Flow  ranges between ~38 lbs/min and 47 lbs/min at a 2:1 pressure
ratio   depending on the scroll A/R used , from the 1.01 up to the 1.44 A/R



Assuming  you'd be running at a PR of ~3.5 :! ( ~37 psi)   and 90 lbs/min at 76%
effic   and with a pressure ratio of ~2:1 across the turbine stage  with a TIT
of 1500 F  and nil losses across the flametube , you'd have a turbine inlet
corrected flow of ~50 lbs/min , this is slightly higher than the corrected flow 
able to be processed by the largest scroll A/R  the 1.44 A/R , you'd either have
to reduce the mass flow by a bit or reduce the temperature ,  alternately , an
increase in rpm and pressure ratio could also bring supply and availability to
process , back into balance .



You'll certainly need to have the GT45 turbos equiped with the 1.44 A/R turbine
scrolls .



Cheers

John



----- Original Message -----

   From: Eddy Dupuis

   To: DIYGasTurbines@ yahoogroups. com

   Sent: Friday, November 13, 2009 8:09 AM

   Subject: Re: [DIYGasTurbines] now no choice



are there nice turbo for a project ?



are they big enough ??pounds? you told me there diferent turbine scroll what is
better small or large? i make sure to have the same numbers thank a lot for your
advice and the time you take to give it to me, i do aprreciate



From: John WALLIS (Racketmotorman) <racketmotorman@ gmail.com>



To: DIYGasTurbines@ yahoogroups. com

   Sent: Thu, November 12, 2009 2:26:07 PM

   Subject: Re: [DIYGasTurbines] now no choice



Hi Eddy



Which one of the GT45 family http://www.turbobyg arrett.com/ turbobygarrett/
catelog/Turbocha rgers/GT45/ GT4508R.htm have you got , depending on the turbine
scroll A/R being used you'll have different flow/performance .



Cheers

   John

   ----- Original Message -----

   From: Eddy Dupuis

   To: diygasturbines@ yahoogroups. com

   Sent: Friday, November 13, 2009 3:09 AM

   Subject: [DIYGasTurbines] now no choice



i deal with a compagnie and they make me a great deal on two GT45 from garrett
brand new one i aint gona refuse

   and it be good for my project

   eddy



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[Non-text portions of this message have been removed]



[Non-text portions of this message have been removed]

























[Non-text portions of this message have been removed]

Hi

Sounds like the pump is struggling to pump the thicker lube  when cold , it
"should?"  improve as the lube warms and thins .

But best keep a close watch on the oil pressure  whilst trying to warm it , 
just in case the pump is faulty .

Where are you taking the pressure reading from ??..................if at the
turbo  ,........... and you are running "undersized" delivery tubing,  the line
friction could be the problem if ambiant temps are low , the friction will
restrict flow until the lube warms , your pump could be producing a higher
pressure but the line friction reduces it by the time it reaches the turbo and
pressure pickup .

What size delivery tubing ...........and how long is the run between pump and
turbo .??

Cheers
John


   ----- Original Message -----
   From: lemegacool
   To: DIYGasTurbines@yahoogroups.com
   Sent: Friday, November 13, 2009 3:00 PM
   Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!! vid
and pics



   so i changed the oil and now the max pressure the pump will put out (cold) is
60 psi compared to 80-90 with the 0w oil... so basically if i get it right the
pressure should go up a little when warming then it will remain enough thick to
allow the pump to push it at a decent psi... right? sorry for the stupid
question i'm tired lol

   --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@...>
wrote:
   >
   > lol yaeh neighbors start to piss off after a little while LOL
   >
   > i finally bought mobil1 15w-50 oil 50$ jug but i think its a good
investment... st-50 rebuild kits are QUITE rare
   >
   > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper <marshall01@> wrote:
   > >
   > >
   > > Funny but i've run mine for half an hour and i can keep my hand on the
resorvoir quite easily maybe 120deg F . I've put an oil cooler on but havent
bothered hooking a fan to it yet , i guess if i were to run for a longer period
of time it might be an issue but i run out of fuel before the oil gets too hot
and i don't like to fill the tank with it running . how long do we play with our
jets before it is shutdown time anyways ?
   > >
   > > Marshall
   > >
   > >
   > >
   > > To: DIYGasTurbines@yahoogroups.com
   > > From: hatfiedv@
   > > Date: Wed, 11 Nov 2009 22:37:09 -0800
   > > Subject: Re: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
!!! vid and pics
   > >
   > >
   > >
   > >
   > >
   > > one of the reasons that a tractor has little trouble with any oil is that
   > > the volume of oil is considerable with large area and small porosity oil
   > > filters and large cooling capacity. these little gas turbines have an oil
   > > capacity of maybe 2 gallons? this small total volume heats very quickly
and
   > > very likely exceeds 180 degrees F. non-synthetic oil starts to carbonize
at
   > > 160 dgrees. this is why it turns black. synthetic oils have various flash
   > > points of 220 to 520 degrees F. the higher the flash point, the more
   > > durable the oil. performance specs for good oils are available on-line
from
   > > the manfacturors. thrust bearings and especially babbit types should
   > > maintain oil drain temps below 180 F. in order to maintain bearing
   > > integrity.
   > >
   > > ----- Original Message -----
   > > From: "Marshall Piper" <marshall01@>
   > > To: <diygasturbines@yahoogroups.com>
   > > Sent: Wednesday, November 11, 2009 8:30 PM
   > > Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
   > > !!! vid and pics
   > >
   > > >
   > > > Why don't you just try15w40 oil non synthetic we use this oil in our
   > > tractors and combines with good results . We get many thousands of hours
of
   > > use out of these engines without any problems and the turbo is usually the
   > > last thing to worry about . the oil isn't that expensive compared to
   > > synthetic and it's alot thicker than 0w30 .
   > > >
   > > > Marshall
   > > >
   > > >
   > > >
   > > > To: DIYGasTurbines@yahoogroups.com
   > > > From: simonbeausoleil@
   > > > Date: Thu, 12 Nov 2009 01:12:06 +0000
   > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
!!!
   > > vid and pics
   > > >
   > > >
   > > >
   > > >
   > > >
   > > > MANY thanks!!! lol i guess this is the 60$ jug right LOL
   > > >
   > > > --- In DIYGasTurbines@yahoogroups.com, "Salvatore" <saiello@> wrote:
   > > > >
   > > > > Both numbers are indicators of viscosity at different temperatures.
Take
   > > a 15W-50 oil. The first indicates how thick the oil would be at winter
   > > temperatures, the oil behaving as if it had a viscosity of "15" and the
   > > second number tells you how thick the oil would be at operating
temperatures
   > > if it were a "50" oil.
   > > > >
   > > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@>
   > > wrote:
   > > > > >
   > > > > > ok so what weight should i aim for? what is the main difference
   > > between *w-30 and *w-50? i know the first number is kinda the thickness...
   > > would some 10w-30 syntetic oil be engough?
   > > > > >
   > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
   > > \(Racketmotorman\)" <racketmotorman@> wrote:
   > > > > > >
   > > > > > > Hi Jon
   > > > > > >
   > > > > > > Yep , I'll go along with that , I used 15W-50 semi synthetic in
both
   > > bike and kart , a little harder getting spooled up , and a little more of
a
   > > wait to get the lube warmed so it can flow thru the finer passageways in
the
   > > thrust bearing and provide the correct bearing support/dampering , but
   > > closer to the correct lube for our turbos than the very thin lubes like
0-30
   > > which if the ambiant conditions dictate, is reasonable to use , but for
most
   > > of us in warmer climates "ordinary" weight lubes are a better compromise .
   > > > > > >
   > > > > > > On a side note ..........I just received an overhaul kit for a
TL92
   > > , my next engine ( 10/94 BB) is going to have "brass bush" bearings and a
   > > standard set of "bits" on the shaft to cut down the amount of work
required
   > > , ..............anyway , the thrust bearing is HUGE compared to the one in
   > > my bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm wide
by
   > > 10mm long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X 10mm
for
   > > a total of ~420 sq mms , on a square millimetres of thrust surface per
   > > square inch of compressor rear wall (thats producing the thrust pressure
   > > loads), the TL92 has just on TWICE the ratio of the "fragile" TV84's
thrust
   > > bearing , any wonder I wrecked a few of them , the guys at the turbo
   > > overhaul shop had told me they had problems with the TV84 at high boost
   > > levels on their racing trucks , so even with 90psi oil pressure that
fragile
   > > thrust bearing was marginal .
   > > > > > >
   > > > > > > Cheers
   > > > > > > John
   > > > > > >
   > > > > > > .
   > > > > > > ----- Original Message -----
   > > > > > > From: j m
   > > > > > > To: DIYGasTurbines@yahoogroups.com
   > > > > > > Sent: Wednesday, November 11, 2009 5:14 AM
   > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
   > > running !!! vid and pics
   > > > > > >
   > > > > > >
   > > > > > >
   > > > > > > hi,i used to use 0w30 oil but now use 15w60 oil,really not that
bad
   > > spooling up at all. it is quite expensive through!!i use it because the
   > > place i got my turbo "freshened" recommend it.the upside is the ability to
   > > maintain ol pressure at reduced oil flows.
   > > > > > > worth giving a thicker oil a try it seems :-)
   > > > > > > regards jon
   > > > > > >
   > > > > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool"
   > > <simonbeausoleil@> wrote:
   > > > > > > >
   > > > > > > > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!! i
   > > think i'll try with thicker oil... or this winter i could replace the
   > > shurflow pump with a procon pump...
   > > > > > > >
   > > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
   > > \(Racketmotorman\)" <racketmotorman@> wrote:
   > > > > > > > >
   > > > > > > > > Hi
   > > > > > > > >
   > > > > > > > > "THE" shurflo doesn't always produce the required flow once
   > > temperatures and pressures come up , other members have experienced the
same
   > > problems with their ST/VT-50 turbs and shurflo , the pump is "marginal" on
   > > bigger turbos .
   > > > > > > > >
   > > > > > > > > Cheers
   > > > > > > > > John
   > > > > > > > >
   > > > > > > > >
   > > > > > > > > ----- Original Message -----
   > > > > > > > > From: lemegacool
   > > > > > > > > To: DIYGasTurbines@yahoogroups.com
   > > > > > > > > Sent: Monday, November 09, 2009 2:16 PM
   > > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
   > > running !!! vid and pics
   > > > > > > > >
   > > > > > > > >
   > > > > > > > >
   > > > > > > > > thanks for the answers!
   > > > > > > > >
   > > > > > > > > the oil pump i'm using is "THE" shurflow pump suitable for gt
   > > use... i run it a 12v, i might just drain the oil and replace with 5w-30.
   > > dang what i'll do with all that expensive mobil1 oil... hmmm maybe use it
in
   > > my turbo shopping kart LOL (not a gas turbine just a turboed honda 5.5
lol)
   > > > > > > > >
   > > > > > > > > yeah i kinda have some trouble sourcing a factory st-50
   > > gasket...
   > > > > > > > >
   > > > > > > > > and no drain in the cc... but i have a propane pilot flame
   > > before i juice up the diesel so basically what happened i think is that my
   > > pilot shutted off and didn't lit the fuel... oh well
   > > > > > > > >
   > > > > > > > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper
   > > <marshall01@> wrote:
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > > Great vid's glad to see another fledgling running . About
your
   > > questions : I think 0w30 might be a little thin but am using it myself it
   > > makes starting a little easier . Could you drive the pump a little faster
?
   > > is it pulley driven, could put a smaller pulley on the pump . I am using a
   > > factory gasket for the flange they are made to take the heat . I had
noticed
   > > on your hot start vid that it looked like the engine was just about to go
to
   > > runaway speed then you got it shut off good thing you had the leaf blower
   > > stuck in the intake so it couldn't get that much air or it would of over
   > > speeded . Are you using a drain valve on the C.C. at it's lowest point ?
The
   > > reason i ask this is that if you don't get instant ignition and have the
   > > fuel on it will run out of the flame tube and pool inside the outer
housing
   > > and then when you finally get it started the blast of air from the comp
will
   > > lift all that fuel into the flame tube and you have an over speed
situation
   > > and there isn't much you can doo about it except run like hell .
   > > > > > > > > >
   > > > > > > > > > Marshall
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > > To: DIYGasTurbines@yahoogroups.com
   > > > > > > > > > From: simonbeausoleil@
   > > > > > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
   > > > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is
FINALLY
   > > running !!! vid and pics
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > > thanks for the comment! :)
   > > > > > > > > >
   > > > > > > > > > so... basically i have two main question...
   > > > > > > > > >
   > > > > > > > > > 1: is 0w-30 oil is too thin?
   > > > > > > > > >
   > > > > > > > > > 2: what gasket material should i use on the cc's flange?
   > > > > > > > > >
   > > > > > > > > > thanks!
   > > > > > > > > >
   > > > > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
   > > \(Racketmotorman\)" <racketmotorman@> wrote:
   > > > > > > > > > >
   > > > > > > > > > > Hi
   > > > > > > > > > >
   > > > > > > > > > > Congratulations :-))
   > > > > > > > > > >
   > > > > > > > > > > Just some minor teething problems to sort out
   > > ..................LOL....we've all had those .................good one
   > > > > > > > > > >
   > > > > > > > > > > Cheeers
   > > > > > > > > > > John
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > > ----- Original Message -----
   > > > > > > > > > > From: lemegacool
   > > > > > > > > > > To: DIYGasTurbines@yahoogroups.com
   > > > > > > > > > > Sent: Monday, November 09, 2009 7:44 AM
   > > > > > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is FINALLY
   > > running !!! vid and pics
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > > i finally got my big gas turbine to run! omg its such a
   > > feeling being close to that thing when its spinning by itself! ok i'm now
an
   > > addict lol
   > > > > > > > > > >
   > > > > > > > > > > http://www.youtube.com/watch?v=Nq8wk8EJBfk
   > > > > > > > > > >
   > > > > > > > > > > still some trouble happened...
   > > > > > > > > > >
   > > > > > > > > > > when the oil warmed up the pump wasnt able to push more
than
   > > 40psi with the bypass valve completely closed... i suspect 0W-30 oil is
   > > maybe too thin? i would really like to keep the oil press at 50-55 psi
   > > > > > > > > > >
   > > > > > > > > > > second at the end of the vid the compressor pipe blew off
in
   > > my face LOL now i know what 25psi of boost in a 4" pipe feels like lol the
   > > thing is my air inlet on the combustion chamber is 3.5" and my rubber
   > > coupler is 4" so i wraped some duct tape around the air inlet to enlarge
   > > it... lol not a good idea it blew righ of... going to make a steel
enlarger
   > > tomorrow at work with the CNC plasma
   > > > > > > > > > >
   > > > > > > > > > >
   > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
   > > > > > > > > > >
   > > > > > > > > > > also the "hi temp" gasket maker started to melt and caused
   > > some air pressure loss... what do you guys use for the turbine's flange
   > > gasket???
   > > > > > > > > > >
   > > > > > > > > > > and finally i did a hot start... even with all the
   > > precautions i took
   > > > > > > > > > > DUDE its SCARY!!!
   > > > > > > > > > >
   > > > > > > > > > > http://www.youtube.com/watch?v=j1F0BxJ9Bf8
   > > > > > > > > > >
   > > > > > > > > > >
   > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
   > > > > > > > > > >
   > > > > > > > > > >
   > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
   > > > > > > > > > >
   > > > > > > > > > >
   > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8098.jpg[/IMG]
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > >
   > > > > > > > > > > [Non-text portions of this message have been removed]
   > > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > >
   > > > > > > > > > __________________________________________________________
   > > > > > > > > > Ready. Set. Get a great deal on Windows 7. See fantastic
deals
   > > on Windows 7 now
   > > > > > > > > > http://go.microsoft.com/?linkid=9691818
   > > > > > > > > >
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   > > > > > > > > [Non-text portions of this message have been removed]
   > > > > > > > >
   > > > > > > >
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   > > >
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   > > >
   > > > __________________________________________________________
   > > > Windows Live: Friends get your Flickr, Yelp, and Digg updates when they
   > > e-mail you.
   > > > http://go.microsoft.com/?linkid=9691817
   > > >
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   > > > Yahoo! Groups Links
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[Non-text portions of this message have been removed]

i dont know the configurationof the gas turbine but if the fan take the air from
inside instade ooutside mite get warm seam to be ridicule but who now




________________________________
From: Marshall Piper <marshall01@...>
To: "diygasturbines@yahoogroups.com" <diygasturbines@yahoogroups.com>
Sent: Thu, November 12, 2009 6:58:04 PM
Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics


Funny but i've run mine for half an hour and i can keep my hand on the resorvoir
quite easily maybe 120deg F . I've put an oil cooler on but havent bothered
hooking a fan to it yet , i guess if i were to run for a longer period of time
it might be an issue but i run out of fuel before the oil gets too hot and i
don't like to fill the tank with it running . how long do we play with our jets
before it is shutdown time anyways ?

Marshall



To: DIYGasTurbines@yahoogroups.com
From: hatfiedv@...
Date: Wed, 11 Nov 2009 22:37:09 -0800
Subject: Re: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics





one of the reasons that a tractor has little trouble with any oil is that
the volume of oil is considerable with large area and small porosity oil
filters and large cooling capacity. these little gas turbines have an oil
capacity of maybe 2 gallons? this small total volume heats very quickly and
very likely exceeds 180 degrees F. non-synthetic oil starts to carbonize at
160 dgrees. this is why it turns black. synthetic oils have various flash
points of 220 to 520 degrees F. the higher the flash point, the more
durable the oil. performance specs for good oils are available on-line from
the manfacturors. thrust bearings and especially babbit types should
maintain oil drain temps below 180 F. in order to maintain bearing
integrity.

----- Original Message -----
From: "Marshall Piper" <marshall01@...>
To: <diygasturbines@yahoogroups.com>
Sent: Wednesday, November 11, 2009 8:30 PM
Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
!!! vid and pics

>
> Why don't you just try15w40 oil non synthetic we use this oil in our
tractors and combines with good results . We get many thousands of hours of
use out of these engines without any problems and the turbo is usually the
last thing to worry about . the oil isn't that expensive compared to
synthetic and it's alot thicker than 0w30 .
>
> Marshall
>
>
>
> To: DIYGasTurbines@yahoogroups.com
> From: simonbeausoleil@...
> Date: Thu, 12 Nov 2009 01:12:06 +0000
> Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
>
>
>
>
>
> MANY thanks!!! lol i guess this is the 60$ jug right LOL
>
> --- In DIYGasTurbines@yahoogroups.com, "Salvatore" <saiello@...> wrote:
> >
> > Both numbers are indicators of viscosity at different temperatures. Take
a 15W-50 oil. The first indicates how thick the oil would be at winter
temperatures, the oil behaving as if it had a viscosity of "15" and the
second number tells you how thick the oil would be at operating temperatures
if it were a "50" oil.
> >
> > --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@>
wrote:
> > >
> > > ok so what weight should i aim for? what is the main difference
between *w-30 and *w-50? i know the first number is kinda the thickness...
would some 10w-30 syntetic oil be engough?
> > >
> > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> > > >
> > > > Hi Jon
> > > >
> > > > Yep , I'll go along with that , I used 15W-50 semi synthetic in both
bike and kart , a little harder getting spooled up , and a little more of a
wait to get the lube warmed so it can flow thru the finer passageways in the
thrust bearing and provide the correct bearing support/dampering , but
closer to the correct lube for our turbos than the very thin lubes like 0-30
which if the ambiant conditions dictate, is reasonable to use , but for most
of us in warmer climates "ordinary" weight lubes are a better compromise .
> > > >
> > > > On a side note ..........I just received an overhaul kit for a TL92
, my next engine ( 10/94 BB) is going to have "brass bush" bearings and a
standard set of "bits" on the shaft to cut down the amount of work required
, ..............anyway , the thrust bearing is HUGE compared to the one in
my bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm wide by
10mm long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X 10mm for
a total of ~420 sq mms , on a square millimetres of thrust surface per
square inch of compressor rear wall (thats producing the thrust pressure
loads), the TL92 has just on TWICE the ratio of the "fragile" TV84's thrust
bearing , any wonder I wrecked a few of them , the guys at the turbo
overhaul shop had told me they had problems with the TV84 at high boost
levels on their racing trucks , so even with 90psi oil pressure that fragile
thrust bearing was marginal .
> > > >
> > > > Cheers
> > > > John
> > > >
> > > > .
> > > > ----- Original Message -----
> > > > From: j m
> > > > To: DIYGasTurbines@yahoogroups.com
> > > > Sent: Wednesday, November 11, 2009 5:14 AM
> > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > >
> > > >
> > > >
> > > > hi,i used to use 0w30 oil but now use 15w60 oil,really not that bad
spooling up at all. it is quite expensive through!!i use it because the
place i got my turbo "freshened" recommend it.the upside is the ability to
maintain ol pressure at reduced oil flows.
> > > > worth giving a thicker oil a try it seems :-)
> > > > regards jon
> > > >
> > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool"
<simonbeausoleil@> wrote:
> > > > >
> > > > > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!! i
think i'll try with thicker oil... or this winter i could replace the
shurflow pump with a procon pump...
> > > > >
> > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> > > > > >
> > > > > > Hi
> > > > > >
> > > > > > "THE" shurflo doesn't always produce the required flow once
temperatures and pressures come up , other members have experienced the same
problems with their ST/VT-50 turbs and shurflo , the pump is "marginal" on
bigger turbos .
> > > > > >
> > > > > > Cheers
> > > > > > John
> > > > > >
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: lemegacool
> > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > Sent: Monday, November 09, 2009 2:16 PM
> > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > > > >
> > > > > >
> > > > > >
> > > > > > thanks for the answers!
> > > > > >
> > > > > > the oil pump i'm using is "THE" shurflow pump suitable for gt
use... i run it a 12v, i might just drain the oil and replace with 5w-30.
dang what i'll do with all that expensive mobil1 oil... hmmm maybe use it in
my turbo shopping kart LOL (not a gas turbine just a turboed honda 5.5 lol)
> > > > > >
> > > > > > yeah i kinda have some trouble sourcing a factory st-50
gasket...
> > > > > >
> > > > > > and no drain in the cc... but i have a propane pilot flame
before i juice up the diesel so basically what happened i think is that my
pilot shutted off and didn't lit the fuel... oh well
> > > > > >
> > > > > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper
<marshall01@> wrote:
> > > > > > >
> > > > > > >
> > > > > > > Great vid's glad to see another fledgling running . About your
questions : I think 0w30 might be a little thin but am using it myself it
makes starting a little easier . Could you drive the pump a little faster ?
is it pulley driven, could put a smaller pulley on the pump . I am using a
factory gasket for the flange they are made to take the heat . I had noticed
on your hot start vid that it looked like the engine was just about to go to
runaway speed then you got it shut off good thing you had the leaf blower
stuck in the intake so it couldn't get that much air or it would of over
speeded . Are you using a drain valve on the C.C. at it's lowest point ? The
reason i ask this is that if you don't get instant ignition and have the
fuel on it will run out of the flame tube and pool inside the outer housing
and then when you finally get it started the blast of air from the comp will
lift all that fuel into the flame tube and you have an over speed situation
and there isn't much you can doo about it except run like hell .
> > > > > > >
> > > > > > > Marshall
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > From: simonbeausoleil@
> > > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
> > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > thanks for the comment! :)
> > > > > > >
> > > > > > > so... basically i have two main question...
> > > > > > >
> > > > > > > 1: is 0w-30 oil is too thin?
> > > > > > >
> > > > > > > 2: what gasket material should i use on the cc's flange?
> > > > > > >
> > > > > > > thanks!
> > > > > > >
> > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> > > > > > > >
> > > > > > > > Hi
> > > > > > > >
> > > > > > > > Congratulations :-))
> > > > > > > >
> > > > > > > > Just some minor teething problems to sort out
..................LOL....we've all had those .................good one
> > > > > > > >
> > > > > > > > Cheeers
> > > > > > > > John
> > > > > > > >
> > > > > > > >
> > > > > > > > ----- Original Message -----
> > > > > > > > From: lemegacool
> > > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > > Sent: Monday, November 09, 2009 7:44 AM
> > > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > i finally got my big gas turbine to run! omg its such a
feeling being close to that thing when its spinning by itself! ok i'm now an
addict lol
> > > > > > > >
> > > > > > > > http://www.youtube.com/watch?v=Nq8wk8EJBfk
> > > > > > > >
> > > > > > > > still some trouble happened...
> > > > > > > >
> > > > > > > > when the oil warmed up the pump wasnt able to push more than
40psi with the bypass valve completely closed... i suspect 0W-30 oil is
maybe too thin? i would really like to keep the oil press at 50-55 psi
> > > > > > > >
> > > > > > > > second at the end of the vid the compressor pipe blew off in
my face LOL now i know what 25psi of boost in a 4" pipe feels like lol the
thing is my air inlet on the combustion chamber is 3.5" and my rubber
coupler is 4" so i wraped some duct tape around the air inlet to enlarge
it... lol not a good idea it blew righ of... going to make a steel enlarger
tomorrow at work with the CNC plasma
> > > > > > > >
> > > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > >
> > > > > > > > also the "hi temp" gasket maker started to melt and caused
some air pressure loss... what do you guys use for the turbine's flange
gasket???
> > > > > > > >
> > > > > > > > and finally i did a hot start... even with all the
precautions i took
> > > > > > > > DUDE its SCARY!!!
> > > > > > > >
> > > > > > > > http://www.youtube.com/watch?v=j1F0BxJ9Bf8
> > > > > > > >
> > > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > >
> > > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > >
> > > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8098.jpg[/IMG]
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > [Non-text portions of this message have been removed]
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > __________________________________________________________
> > > > > > > Ready. Set. Get a great deal on Windows 7. See fantastic deals
on Windows 7 now
> > > > > > > http://go.microsoft.com/?linkid=9691818
> > > > > > >
> > > > > > > [Non-text portions of this message have been removed]
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > [Non-text portions of this message have been removed]
> > > > > >
> > > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> >
>
>
>
>
>
> __________________________________________________________
> Windows Live: Friends get your Flickr, Yelp, and Digg updates when they
e-mail you.
> http://go.microsoft.com/?linkid=9691817
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>





_________________________________________________________________
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[Non-text portions of this message have been removed]



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__________________________________________________
Do You Yahoo!?
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[Non-text portions of this message have been removed]

so i changed the oil and now the max pressure the pump will put out (cold) is 60
psi compared to 80-90 with the 0w oil... so basically if i get it right the
pressure should go up a little when warming then it will remain enough thick to
allow the pump to push it at a decent psi... right?  sorry for the stupid
question i'm tired lol

--- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@...> wrote:
>
> lol yaeh neighbors start to piss off after a little while LOL
>
> i finally bought mobil1 15w-50 oil 50$ jug but i think its a good
investment... st-50 rebuild kits are QUITE rare
>
> --- In DIYGasTurbines@yahoogroups.com, Marshall Piper <marshall01@> wrote:
> >
> >
> > Funny but i've run mine for half an hour and i can keep my hand on the
resorvoir quite easily maybe 120deg F . I've put an oil cooler on but havent
bothered hooking a fan to it yet , i guess if i were to run for a longer period
of time it might be an issue but i run out of fuel before the oil gets too hot
and i don't like to fill the tank with it running . how long do we play with our
jets before it is shutdown time anyways ?
> >
> > Marshall
> >
> >
> >
> > To: DIYGasTurbines@yahoogroups.com
> > From: hatfiedv@
> > Date: Wed, 11 Nov 2009 22:37:09 -0800
> > Subject: Re: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
!!! vid and pics
> >
> >
> >
> >
> >
> > one of the reasons that a tractor has little trouble with any oil is that
> > the volume of oil is considerable with large area and small porosity oil
> > filters and large cooling capacity. these little gas turbines have an oil
> > capacity of maybe 2 gallons? this small total volume heats very quickly and
> > very likely exceeds 180 degrees F. non-synthetic oil starts to carbonize at
> > 160 dgrees. this is why it turns black. synthetic oils have various flash
> > points of 220 to 520 degrees F. the higher the flash point, the more
> > durable the oil. performance specs for good oils are available on-line from
> > the manfacturors. thrust bearings and especially babbit types should
> > maintain oil drain temps below 180 F. in order to maintain bearing
> > integrity.
> >
> > ----- Original Message -----
> > From: "Marshall Piper" <marshall01@>
> > To: <diygasturbines@yahoogroups.com>
> > Sent: Wednesday, November 11, 2009 8:30 PM
> > Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
> > !!! vid and pics
> >
> > >
> > > Why don't you just try15w40 oil non synthetic we use this oil in our
> > tractors and combines with good results . We get many thousands of hours of
> > use out of these engines without any problems and the turbo is usually the
> > last thing to worry about . the oil isn't that expensive compared to
> > synthetic and it's alot thicker than 0w30 .
> > >
> > > Marshall
> > >
> > >
> > >
> > > To: DIYGasTurbines@yahoogroups.com
> > > From: simonbeausoleil@
> > > Date: Thu, 12 Nov 2009 01:12:06 +0000
> > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
> > vid and pics
> > >
> > >
> > >
> > >
> > >
> > > MANY thanks!!! lol i guess this is the 60$ jug right LOL
> > >
> > > --- In DIYGasTurbines@yahoogroups.com, "Salvatore" <saiello@> wrote:
> > > >
> > > > Both numbers are indicators of viscosity at different temperatures. Take
> > a 15W-50 oil. The first indicates how thick the oil would be at winter
> > temperatures, the oil behaving as if it had a viscosity of "15" and the
> > second number tells you how thick the oil would be at operating temperatures
> > if it were a "50" oil.
> > > >
> > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@>
> > wrote:
> > > > >
> > > > > ok so what weight should i aim for? what is the main difference
> > between *w-30 and *w-50? i know the first number is kinda the thickness...
> > would some 10w-30 syntetic oil be engough?
> > > > >
> > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
> > \(Racketmotorman\)" <racketmotorman@> wrote:
> > > > > >
> > > > > > Hi Jon
> > > > > >
> > > > > > Yep , I'll go along with that , I used 15W-50 semi synthetic in both
> > bike and kart , a little harder getting spooled up , and a little more of a
> > wait to get the lube warmed so it can flow thru the finer passageways in the
> > thrust bearing and provide the correct bearing support/dampering , but
> > closer to the correct lube for our turbos than the very thin lubes like 0-30
> > which if the ambiant conditions dictate, is reasonable to use , but for most
> > of us in warmer climates "ordinary" weight lubes are a better compromise .
> > > > > >
> > > > > > On a side note ..........I just received an overhaul kit for a TL92
> > , my next engine ( 10/94 BB) is going to have "brass bush" bearings and a
> > standard set of "bits" on the shaft to cut down the amount of work required
> > , ..............anyway , the thrust bearing is HUGE compared to the one in
> > my bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm wide by
> > 10mm long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X 10mm for
> > a total of ~420 sq mms , on a square millimetres of thrust surface per
> > square inch of compressor rear wall (thats producing the thrust pressure
> > loads), the TL92 has just on TWICE the ratio of the "fragile" TV84's thrust
> > bearing , any wonder I wrecked a few of them , the guys at the turbo
> > overhaul shop had told me they had problems with the TV84 at high boost
> > levels on their racing trucks , so even with 90psi oil pressure that fragile
> > thrust bearing was marginal .
> > > > > >
> > > > > > Cheers
> > > > > > John
> > > > > >
> > > > > > .
> > > > > > ----- Original Message -----
> > > > > > From: j m
> > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > Sent: Wednesday, November 11, 2009 5:14 AM
> > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
> > running !!! vid and pics
> > > > > >
> > > > > >
> > > > > >
> > > > > > hi,i used to use 0w30 oil but now use 15w60 oil,really not that bad
> > spooling up at all. it is quite expensive through!!i use it because the
> > place i got my turbo "freshened" recommend it.the upside is the ability to
> > maintain ol pressure at reduced oil flows.
> > > > > > worth giving a thicker oil a try it seems :-)
> > > > > > regards jon
> > > > > >
> > > > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool"
> > <simonbeausoleil@> wrote:
> > > > > > >
> > > > > > > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!! i
> > think i'll try with thicker oil... or this winter i could replace the
> > shurflow pump with a procon pump...
> > > > > > >
> > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
> > \(Racketmotorman\)" <racketmotorman@> wrote:
> > > > > > > >
> > > > > > > > Hi
> > > > > > > >
> > > > > > > > "THE" shurflo doesn't always produce the required flow once
> > temperatures and pressures come up , other members have experienced the same
> > problems with their ST/VT-50 turbs and shurflo , the pump is "marginal" on
> > bigger turbos .
> > > > > > > >
> > > > > > > > Cheers
> > > > > > > > John
> > > > > > > >
> > > > > > > >
> > > > > > > > ----- Original Message -----
> > > > > > > > From: lemegacool
> > > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > > Sent: Monday, November 09, 2009 2:16 PM
> > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
> > running !!! vid and pics
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > thanks for the answers!
> > > > > > > >
> > > > > > > > the oil pump i'm using is "THE" shurflow pump suitable for gt
> > use... i run it a 12v, i might just drain the oil and replace with 5w-30.
> > dang what i'll do with all that expensive mobil1 oil... hmmm maybe use it in
> > my turbo shopping kart LOL (not a gas turbine just a turboed honda 5.5 lol)
> > > > > > > >
> > > > > > > > yeah i kinda have some trouble sourcing a factory st-50
> > gasket...
> > > > > > > >
> > > > > > > > and no drain in the cc... but i have a propane pilot flame
> > before i juice up the diesel so basically what happened i think is that my
> > pilot shutted off and didn't lit the fuel... oh well
> > > > > > > >
> > > > > > > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper
> > <marshall01@> wrote:
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > Great vid's glad to see another fledgling running . About your
> > questions : I think 0w30 might be a little thin but am using it myself it
> > makes starting a little easier . Could you drive the pump a little faster ?
> > is it pulley driven, could put a smaller pulley on the pump . I am using a
> > factory gasket for the flange they are made to take the heat . I had noticed
> > on your hot start vid that it looked like the engine was just about to go to
> > runaway speed then you got it shut off good thing you had the leaf blower
> > stuck in the intake so it couldn't get that much air or it would of over
> > speeded . Are you using a drain valve on the C.C. at it's lowest point ? The
> > reason i ask this is that if you don't get instant ignition and have the
> > fuel on it will run out of the flame tube and pool inside the outer housing
> > and then when you finally get it started the blast of air from the comp will
> > lift all that fuel into the flame tube and you have an over speed situation
> > and there isn't much you can doo about it except run like hell .
> > > > > > > > >
> > > > > > > > > Marshall
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > > > From: simonbeausoleil@
> > > > > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
> > > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
> > running !!! vid and pics
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > thanks for the comment! :)
> > > > > > > > >
> > > > > > > > > so... basically i have two main question...
> > > > > > > > >
> > > > > > > > > 1: is 0w-30 oil is too thin?
> > > > > > > > >
> > > > > > > > > 2: what gasket material should i use on the cc's flange?
> > > > > > > > >
> > > > > > > > > thanks!
> > > > > > > > >
> > > > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
> > \(Racketmotorman\)" <racketmotorman@> wrote:
> > > > > > > > > >
> > > > > > > > > > Hi
> > > > > > > > > >
> > > > > > > > > > Congratulations :-))
> > > > > > > > > >
> > > > > > > > > > Just some minor teething problems to sort out
> > ..................LOL....we've all had those .................good one
> > > > > > > > > >
> > > > > > > > > > Cheeers
> > > > > > > > > > John
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > ----- Original Message -----
> > > > > > > > > > From: lemegacool
> > > > > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > > > > Sent: Monday, November 09, 2009 7:44 AM
> > > > > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is FINALLY
> > running !!! vid and pics
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > i finally got my big gas turbine to run! omg its such a
> > feeling being close to that thing when its spinning by itself! ok i'm now an
> > addict lol
> > > > > > > > > >
> > > > > > > > > > http://www.youtube.com/watch?v=Nq8wk8EJBfk
> > > > > > > > > >
> > > > > > > > > > still some trouble happened...
> > > > > > > > > >
> > > > > > > > > > when the oil warmed up the pump wasnt able to push more than
> > 40psi with the bypass valve completely closed... i suspect 0W-30 oil is
> > maybe too thin? i would really like to keep the oil press at 50-55 psi
> > > > > > > > > >
> > > > > > > > > > second at the end of the vid the compressor pipe blew off in
> > my face LOL now i know what 25psi of boost in a 4" pipe feels like lol the
> > thing is my air inlet on the combustion chamber is 3.5" and my rubber
> > coupler is 4" so i wraped some duct tape around the air inlet to enlarge
> > it... lol not a good idea it blew righ of... going to make a steel enlarger
> > tomorrow at work with the CNC plasma
> > > > > > > > > >
> > > > > > > > > >
> > [IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > > > >
> > > > > > > > > > also the "hi temp" gasket maker started to melt and caused
> > some air pressure loss... what do you guys use for the turbine's flange
> > gasket???
> > > > > > > > > >
> > > > > > > > > > and finally i did a hot start... even with all the
> > precautions i took
> > > > > > > > > > DUDE its SCARY!!!
> > > > > > > > > >
> > > > > > > > > > http://www.youtube.com/watch?v=j1F0BxJ9Bf8
> > > > > > > > > >
> > > > > > > > > >
> > [IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > > > >
> > > > > > > > > >
> > [IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > > > >
> > > > > > > > > >
> > [IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8098.jpg[/IMG]
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > >
> > > > > > > > > > [Non-text portions of this message have been removed]
> > > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > __________________________________________________________
> > > > > > > > > Ready. Set. Get a great deal on Windows 7. See fantastic deals
> > on Windows 7 now
> > > > > > > > > http://go.microsoft.com/?linkid=9691818
> > > > > > > > >
> > > > > > > > > [Non-text portions of this message have been removed]
> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > [Non-text portions of this message have been removed]
> > > > > > > >
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > [Non-text portions of this message have been removed]
> > > > > >
> > > > >
> > > >
> > >
> > >
> > >
> > >
> > >
> > > __________________________________________________________
> > > Windows Live: Friends get your Flickr, Yelp, and Digg updates when they
> > e-mail you.
> > > http://go.microsoft.com/?linkid=9691817
> > >
> > > [Non-text portions of this message have been removed]
> > >
> > >
> > >
> > > ------------------------------------
> > >
> > > Yahoo! Groups Links
> > >
> > >
> > >
> >
> >
> >
> >
> >
> > _________________________________________________________________
> > New! Open Messenger faster on the MSN homepage
> > http://go.microsoft.com/?linkid=9677405
> >
> > [Non-text portions of this message have been removed]
> >
>

ther be picture of the control panneland the turbo on eddy-dupuis2000




________________________________
From: John WALLIS (Racketmotorman) <racketmotorman@...>
To: DIYGasTurbines@yahoogroups.com
Sent: Thu, November 12, 2009 8:16:15 PM
Subject: Re: [DIYGasTurbines] now no choice


Hi Eddy

As I mentioned in an earlier email , having twin/split inlet on the turb scroll
reduces efficiency .

If you look at the Turbine Flow "map" in the Link http://www.turbobyg
arrett.com/ turbobygarrett/ catelog/Turbocha rgers/GT45/ GT4508R.htm the
Corrected Flow  ranges between ~38 lbs/min and 47 lbs/min at a 2:1 pressure
ratio   depending on the scroll A/R used , from the 1.01 up to the 1.44 A/R

Assuming  you'd be running at a PR of ~3.5 :! ( ~37 psi)   and 90 lbs/min at 76%
effic   and with a pressure ratio of ~2:1 across the turbine stage  with a TIT
of 1500 F  and nil losses across the flametube , you'd have a turbine inlet
corrected flow of ~50 lbs/min , this is slightly higher than the corrected flow 
able to be processed by the largest scroll A/R  the 1.44 A/R , you'd either have
to reduce the mass flow by a bit or reduce the temperature ,  alternately , an
increase in rpm and pressure ratio could also bring supply and availability to
process , back into balance .

You'll certainly need to have the GT45 turbos equiped with the 1.44 A/R turbine
scrolls .

Cheers
John

----- Original Message -----
From: Eddy Dupuis
To: DIYGasTurbines@ yahoogroups. com
Sent: Friday, November 13, 2009 8:09 AM
Subject: Re: [DIYGasTurbines] now no choice

are there nice turbo for a project ?

are they big enough ??pounds? you told me there diferent turbine scroll what is
better small or large? i make sure to have the same numbers thank a lot for your
advice and the time you take to give it to me, i do aprreciate

From: John WALLIS (Racketmotorman) <racketmotorman@ gmail.com>

To: DIYGasTurbines@ yahoogroups. com
Sent: Thu, November 12, 2009 2:26:07 PM
Subject: Re: [DIYGasTurbines] now no choice

Hi Eddy

Which one of the GT45 family http://www.turbobyg arrett.com/ turbobygarrett/
catelog/Turbocha rgers/GT45/ GT4508R.htm have you got , depending on the turbine
scroll A/R being used you'll have different flow/performance .

Cheers
John
----- Original Message -----
From: Eddy Dupuis
To: diygasturbines@ yahoogroups. com
Sent: Friday, November 13, 2009 3:09 AM
Subject: [DIYGasTurbines] now no choice

i deal with a compagnie and they make me a great deal on two GT45 from garrett
brand new one i aint gona refuse
and it be good for my project
eddy

____________ _________ _________ _________ _________ _________ _
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[Non-text portions of this message have been removed]

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[Non-text portions of this message have been removed]

hello john  my twin turbo are gona be independant there gona have there own
chamberit is ike 2 time one turbo like on a plane they dont share the C.B.

so everything or almost gonna be double to the control board wich i can buidl
now for for a bit of money andthat can work on a smalll note pade or on digital
display
regar eddy


________________________________
From: John WALLIS (Racketmotorman) <racketmotorman@...>
To: DIYGasTurbines@yahoogroups.com
Sent: Thu, November 12, 2009 8:16:15 PM
Subject: Re: [DIYGasTurbines] now no choice


Hi Eddy

As I mentioned in an earlier email , having twin/split inlet on the turb scroll
reduces efficiency .

If you look at the Turbine Flow "map" in the Link http://www.turbobyg
arrett.com/ turbobygarrett/ catelog/Turbocha rgers/GT45/ GT4508R.htm the
Corrected Flow  ranges between ~38 lbs/min and 47 lbs/min at a 2:1 pressure
ratio   depending on the scroll A/R used , from the 1.01 up to the 1.44 A/R

Assuming  you'd be running at a PR of ~3.5 :! ( ~37 psi)   and 90 lbs/min at 76%
effic   and with a pressure ratio of ~2:1 across the turbine stage  with a TIT
of 1500 F  and nil losses across the flametube , you'd have a turbine inlet
corrected flow of ~50 lbs/min , this is slightly higher than the corrected flow 
able to be processed by the largest scroll A/R  the 1.44 A/R , you'd either have
to reduce the mass flow by a bit or reduce the temperature ,  alternately , an
increase in rpm and pressure ratio could also bring supply and availability to
process , back into balance .

You'll certainly need to have the GT45 turbos equiped with the 1.44 A/R turbine
scrolls .

Cheers
John

----- Original Message -----
From: Eddy Dupuis
To: DIYGasTurbines@ yahoogroups. com
Sent: Friday, November 13, 2009 8:09 AM
Subject: Re: [DIYGasTurbines] now no choice

are there nice turbo for a project ?

are they big enough ??pounds? you told me there diferent turbine scroll what is
better small or large? i make sure to have the same numbers thank a lot for your
advice and the time you take to give it to me, i do aprreciate

From: John WALLIS (Racketmotorman) <racketmotorman@ gmail.com>

To: DIYGasTurbines@ yahoogroups. com
Sent: Thu, November 12, 2009 2:26:07 PM
Subject: Re: [DIYGasTurbines] now no choice

Hi Eddy

Which one of the GT45 family http://www.turbobyg arrett.com/ turbobygarrett/
catelog/Turbocha rgers/GT45/ GT4508R.htm have you got , depending on the turbine
scroll A/R being used you'll have different flow/performance .

Cheers
John
----- Original Message -----
From: Eddy Dupuis
To: diygasturbines@ yahoogroups. com
Sent: Friday, November 13, 2009 3:09 AM
Subject: [DIYGasTurbines] now no choice

i deal with a compagnie and they make me a great deal on two GT45 from garrett
brand new one i aint gona refuse
and it be good for my project
eddy

____________ _________ _________ _________ _________ _________ _
Looking for the perfect gift? Give the gift of Flickr!

http://www.flickr. com/gift/

[Non-text portions of this message have been removed]

[Non-text portions of this message have been removed]

____________ _________ _________ _________ _________ _________ _
Be smarter than spam. See how smart SpamGuard is at giving junk email the boot
with the All-new Yahoo! Mail. Click on Options in Mail and switch to New Mail
today or register for free at http://mail. yahoo.ca

[Non-text portions of this message have been removed]

[Non-text portions of this message have been removed]





       __________________________________________________________________
The new Internet Explorer® 8 - Faster, safer, easier.  Optimized for Yahoo! 
Get it Now for Free! at http://downloads.yahoo.com/ca/internetexplorer/

[Non-text portions of this message have been removed]

Hi Eddy

As I mentioned in an earlier email , having twin/split inlet on the turb scroll
reduces efficiency .

If you look at the Turbine Flow "map" in the Link
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT45/GT4508R.\
htm the Corrected Flow  ranges between ~38 lbs/min and 47 lbs/min at a 2:1
pressure ratio   depending on the scroll A/R used , from the 1.01 up to the 1.44
A/R

Assuming  you'd be running at a PR of ~3.5 :! ( ~37 psi)   and 90 lbs/min at 76%
effic   and with a pressure ratio of ~2:1 across the turbine stage  with a TIT
of 1500 F  and nil losses across the flametube , you'd have a turbine inlet
corrected flow of ~50 lbs/min , this is slightly higher than the corrected flow 
able to be processed by the largest scroll A/R  the 1.44 A/R , you'd either have
to reduce the mass flow by a bit or reduce the temperature ,  alternately , an
increase in rpm and pressure ratio could also bring supply and availability to
process , back into balance .

You'll certainly need to have the GT45 turbos equiped with the 1.44 A/R turbine
scrolls .

Cheers
John


   ----- Original Message -----
   From: Eddy Dupuis
   To: DIYGasTurbines@yahoogroups.com
   Sent: Friday, November 13, 2009 8:09 AM
   Subject: Re: [DIYGasTurbines] now no choice



   are there nice turbo for a project ?

   are they big enough ??pounds? you told me there diferent turbine scroll what
is better small or large? i make sure to have the same numbers thank a lot for
your advice and the time you take to give it to me, i do aprreciate

   From: John WALLIS (Racketmotorman) <racketmotorman@...>

   To: DIYGasTurbines@yahoogroups.com
   Sent: Thu, November 12, 2009 2:26:07 PM
   Subject: Re: [DIYGasTurbines] now no choice

   Hi Eddy

   Which one of the GT45 family http://www.turbobyg arrett.com/ turbobygarrett/
catelog/Turbocha rgers/GT45/ GT4508R.htm have you got , depending on the turbine
scroll A/R being used you'll have different flow/performance .

   Cheers
   John
   ----- Original Message -----
   From: Eddy Dupuis
   To: diygasturbines@ yahoogroups. com
   Sent: Friday, November 13, 2009 3:09 AM
   Subject: [DIYGasTurbines] now no choice

   i deal with a compagnie and they make me a great deal on two GT45 from garrett
brand new one i aint gona refuse
   and it be good for my project
   eddy

   ____________ _________ _________ _________ _________ _________ _
   Looking for the perfect gift? Give the gift of Flickr!

   http://www.flickr. com/gift/

   [Non-text portions of this message have been removed]

   [Non-text portions of this message have been removed]

   __________________________________________________________
   Be smarter than spam. See how smart SpamGuard is at giving junk email the boot
with the All-new Yahoo! Mail. Click on Options in Mail and switch to New Mail
today or register for free at http://mail.yahoo.ca

   [Non-text portions of this message have been removed]





[Non-text portions of this message have been removed]

lol yaeh neighbors start to piss off after a little while LOL

i finally bought mobil1 15w-50 oil 50$ jug but i think its a good investment...
st-50 rebuild kits are QUITE rare

--- In DIYGasTurbines@yahoogroups.com, Marshall Piper <marshall01@...> wrote:
>
>
> Funny but i've run mine for half an hour and i can keep my hand on the
resorvoir quite easily maybe 120deg F . I've put an oil cooler on but havent
bothered hooking a fan to it yet , i guess if i were to run for a longer period
of time it might be an issue but i run out of fuel before the oil gets too hot
and i don't like to fill the tank with it running . how long do we play with our
jets before it is shutdown time anyways ?
>
> Marshall
>
>
>
> To: DIYGasTurbines@yahoogroups.com
> From: hatfiedv@...
> Date: Wed, 11 Nov 2009 22:37:09 -0800
> Subject: Re: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
>
>
>
>
>
> one of the reasons that a tractor has little trouble with any oil is that
> the volume of oil is considerable with large area and small porosity oil
> filters and large cooling capacity. these little gas turbines have an oil
> capacity of maybe 2 gallons? this small total volume heats very quickly and
> very likely exceeds 180 degrees F. non-synthetic oil starts to carbonize at
> 160 dgrees. this is why it turns black. synthetic oils have various flash
> points of 220 to 520 degrees F. the higher the flash point, the more
> durable the oil. performance specs for good oils are available on-line from
> the manfacturors. thrust bearings and especially babbit types should
> maintain oil drain temps below 180 F. in order to maintain bearing
> integrity.
>
> ----- Original Message -----
> From: "Marshall Piper" <marshall01@...>
> To: <diygasturbines@yahoogroups.com>
> Sent: Wednesday, November 11, 2009 8:30 PM
> Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
> !!! vid and pics
>
> >
> > Why don't you just try15w40 oil non synthetic we use this oil in our
> tractors and combines with good results . We get many thousands of hours of
> use out of these engines without any problems and the turbo is usually the
> last thing to worry about . the oil isn't that expensive compared to
> synthetic and it's alot thicker than 0w30 .
> >
> > Marshall
> >
> >
> >
> > To: DIYGasTurbines@yahoogroups.com
> > From: simonbeausoleil@...
> > Date: Thu, 12 Nov 2009 01:12:06 +0000
> > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
> vid and pics
> >
> >
> >
> >
> >
> > MANY thanks!!! lol i guess this is the 60$ jug right LOL
> >
> > --- In DIYGasTurbines@yahoogroups.com, "Salvatore" <saiello@> wrote:
> > >
> > > Both numbers are indicators of viscosity at different temperatures. Take
> a 15W-50 oil. The first indicates how thick the oil would be at winter
> temperatures, the oil behaving as if it had a viscosity of "15" and the
> second number tells you how thick the oil would be at operating temperatures
> if it were a "50" oil.
> > >
> > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@>
> wrote:
> > > >
> > > > ok so what weight should i aim for? what is the main difference
> between *w-30 and *w-50? i know the first number is kinda the thickness...
> would some 10w-30 syntetic oil be engough?
> > > >
> > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
> \(Racketmotorman\)" <racketmotorman@> wrote:
> > > > >
> > > > > Hi Jon
> > > > >
> > > > > Yep , I'll go along with that , I used 15W-50 semi synthetic in both
> bike and kart , a little harder getting spooled up , and a little more of a
> wait to get the lube warmed so it can flow thru the finer passageways in the
> thrust bearing and provide the correct bearing support/dampering , but
> closer to the correct lube for our turbos than the very thin lubes like 0-30
> which if the ambiant conditions dictate, is reasonable to use , but for most
> of us in warmer climates "ordinary" weight lubes are a better compromise .
> > > > >
> > > > > On a side note ..........I just received an overhaul kit for a TL92
> , my next engine ( 10/94 BB) is going to have "brass bush" bearings and a
> standard set of "bits" on the shaft to cut down the amount of work required
> , ..............anyway , the thrust bearing is HUGE compared to the one in
> my bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm wide by
> 10mm long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X 10mm for
> a total of ~420 sq mms , on a square millimetres of thrust surface per
> square inch of compressor rear wall (thats producing the thrust pressure
> loads), the TL92 has just on TWICE the ratio of the "fragile" TV84's thrust
> bearing , any wonder I wrecked a few of them , the guys at the turbo
> overhaul shop had told me they had problems with the TV84 at high boost
> levels on their racing trucks , so even with 90psi oil pressure that fragile
> thrust bearing was marginal .
> > > > >
> > > > > Cheers
> > > > > John
> > > > >
> > > > > .
> > > > > ----- Original Message -----
> > > > > From: j m
> > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > Sent: Wednesday, November 11, 2009 5:14 AM
> > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
> running !!! vid and pics
> > > > >
> > > > >
> > > > >
> > > > > hi,i used to use 0w30 oil but now use 15w60 oil,really not that bad
> spooling up at all. it is quite expensive through!!i use it because the
> place i got my turbo "freshened" recommend it.the upside is the ability to
> maintain ol pressure at reduced oil flows.
> > > > > worth giving a thicker oil a try it seems :-)
> > > > > regards jon
> > > > >
> > > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool"
> <simonbeausoleil@> wrote:
> > > > > >
> > > > > > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!! i
> think i'll try with thicker oil... or this winter i could replace the
> shurflow pump with a procon pump...
> > > > > >
> > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
> \(Racketmotorman\)" <racketmotorman@> wrote:
> > > > > > >
> > > > > > > Hi
> > > > > > >
> > > > > > > "THE" shurflo doesn't always produce the required flow once
> temperatures and pressures come up , other members have experienced the same
> problems with their ST/VT-50 turbs and shurflo , the pump is "marginal" on
> bigger turbos .
> > > > > > >
> > > > > > > Cheers
> > > > > > > John
> > > > > > >
> > > > > > >
> > > > > > > ----- Original Message -----
> > > > > > > From: lemegacool
> > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > Sent: Monday, November 09, 2009 2:16 PM
> > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
> running !!! vid and pics
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > thanks for the answers!
> > > > > > >
> > > > > > > the oil pump i'm using is "THE" shurflow pump suitable for gt
> use... i run it a 12v, i might just drain the oil and replace with 5w-30.
> dang what i'll do with all that expensive mobil1 oil... hmmm maybe use it in
> my turbo shopping kart LOL (not a gas turbine just a turboed honda 5.5 lol)
> > > > > > >
> > > > > > > yeah i kinda have some trouble sourcing a factory st-50
> gasket...
> > > > > > >
> > > > > > > and no drain in the cc... but i have a propane pilot flame
> before i juice up the diesel so basically what happened i think is that my
> pilot shutted off and didn't lit the fuel... oh well
> > > > > > >
> > > > > > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper
> <marshall01@> wrote:
> > > > > > > >
> > > > > > > >
> > > > > > > > Great vid's glad to see another fledgling running . About your
> questions : I think 0w30 might be a little thin but am using it myself it
> makes starting a little easier . Could you drive the pump a little faster ?
> is it pulley driven, could put a smaller pulley on the pump . I am using a
> factory gasket for the flange they are made to take the heat . I had noticed
> on your hot start vid that it looked like the engine was just about to go to
> runaway speed then you got it shut off good thing you had the leaf blower
> stuck in the intake so it couldn't get that much air or it would of over
> speeded . Are you using a drain valve on the C.C. at it's lowest point ? The
> reason i ask this is that if you don't get instant ignition and have the
> fuel on it will run out of the flame tube and pool inside the outer housing
> and then when you finally get it started the blast of air from the comp will
> lift all that fuel into the flame tube and you have an over speed situation
> and there isn't much you can doo about it except run like hell .
> > > > > > > >
> > > > > > > > Marshall
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > > From: simonbeausoleil@
> > > > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
> > > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
> running !!! vid and pics
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > thanks for the comment! :)
> > > > > > > >
> > > > > > > > so... basically i have two main question...
> > > > > > > >
> > > > > > > > 1: is 0w-30 oil is too thin?
> > > > > > > >
> > > > > > > > 2: what gasket material should i use on the cc's flange?
> > > > > > > >
> > > > > > > > thanks!
> > > > > > > >
> > > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
> \(Racketmotorman\)" <racketmotorman@> wrote:
> > > > > > > > >
> > > > > > > > > Hi
> > > > > > > > >
> > > > > > > > > Congratulations :-))
> > > > > > > > >
> > > > > > > > > Just some minor teething problems to sort out
> ..................LOL....we've all had those .................good one
> > > > > > > > >
> > > > > > > > > Cheeers
> > > > > > > > > John
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > ----- Original Message -----
> > > > > > > > > From: lemegacool
> > > > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > > > Sent: Monday, November 09, 2009 7:44 AM
> > > > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is FINALLY
> running !!! vid and pics
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > i finally got my big gas turbine to run! omg its such a
> feeling being close to that thing when its spinning by itself! ok i'm now an
> addict lol
> > > > > > > > >
> > > > > > > > > http://www.youtube.com/watch?v=Nq8wk8EJBfk
> > > > > > > > >
> > > > > > > > > still some trouble happened...
> > > > > > > > >
> > > > > > > > > when the oil warmed up the pump wasnt able to push more than
> 40psi with the bypass valve completely closed... i suspect 0W-30 oil is
> maybe too thin? i would really like to keep the oil press at 50-55 psi
> > > > > > > > >
> > > > > > > > > second at the end of the vid the compressor pipe blew off in
> my face LOL now i know what 25psi of boost in a 4" pipe feels like lol the
> thing is my air inlet on the combustion chamber is 3.5" and my rubber
> coupler is 4" so i wraped some duct tape around the air inlet to enlarge
> it... lol not a good idea it blew righ of... going to make a steel enlarger
> tomorrow at work with the CNC plasma
> > > > > > > > >
> > > > > > > > >
> [IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > > >
> > > > > > > > > also the "hi temp" gasket maker started to melt and caused
> some air pressure loss... what do you guys use for the turbine's flange
> gasket???
> > > > > > > > >
> > > > > > > > > and finally i did a hot start... even with all the
> precautions i took
> > > > > > > > > DUDE its SCARY!!!
> > > > > > > > >
> > > > > > > > > http://www.youtube.com/watch?v=j1F0BxJ9Bf8
> > > > > > > > >
> > > > > > > > >
> [IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > > >
> > > > > > > > >
> [IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > > >
> > > > > > > > >
> [IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8098.jpg[/IMG]
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > >
> > > > > > > > > [Non-text portions of this message have been removed]
> > > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > __________________________________________________________
> > > > > > > > Ready. Set. Get a great deal on Windows 7. See fantastic deals
> on Windows 7 now
> > > > > > > > http://go.microsoft.com/?linkid=9691818
> > > > > > > >
> > > > > > > > [Non-text portions of this message have been removed]
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > [Non-text portions of this message have been removed]
> > > > > > >
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > [Non-text portions of this message have been removed]
> > > > >
> > > >
> > >
> >
> >
> >
> >
> >
> > __________________________________________________________
> > Windows Live: Friends get your Flickr, Yelp, and Digg updates when they
> e-mail you.
> > http://go.microsoft.com/?linkid=9691817
> >
> > [Non-text portions of this message have been removed]
> >
> >
> >
> > ------------------------------------
> >
> > Yahoo! Groups Links
> >
> >
> >
>
>
>
>
>
> _________________________________________________________________
> New! Open Messenger faster on the MSN homepage
> http://go.microsoft.com/?linkid=9677405
>
> [Non-text portions of this message have been removed]
>

Funny but i've run mine for half an hour and i can keep my hand on the resorvoir
quite easily maybe 120deg F . I've put an oil cooler on but havent bothered
hooking a fan to it yet , i guess if i were to run for a longer period of time
it might be an issue but i run out of fuel before the oil gets too hot and i
don't like to fill the tank with it running . how long do we play with our jets
before it is shutdown time anyways ?

Marshall



To: DIYGasTurbines@yahoogroups.com
From: hatfiedv@...
Date: Wed, 11 Nov 2009 22:37:09 -0800
Subject: Re: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics





one of the reasons that a tractor has little trouble with any oil is that
the volume of oil is considerable with large area and small porosity oil
filters and large cooling capacity. these little gas turbines have an oil
capacity of maybe 2 gallons? this small total volume heats very quickly and
very likely exceeds 180 degrees F. non-synthetic oil starts to carbonize at
160 dgrees. this is why it turns black. synthetic oils have various flash
points of 220 to 520 degrees F. the higher the flash point, the more
durable the oil. performance specs for good oils are available on-line from
the manfacturors. thrust bearings and especially babbit types should
maintain oil drain temps below 180 F. in order to maintain bearing
integrity.

----- Original Message -----
From: "Marshall Piper" <marshall01@...>
To: <diygasturbines@yahoogroups.com>
Sent: Wednesday, November 11, 2009 8:30 PM
Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
!!! vid and pics

>
> Why don't you just try15w40 oil non synthetic we use this oil in our
tractors and combines with good results . We get many thousands of hours of
use out of these engines without any problems and the turbo is usually the
last thing to worry about . the oil isn't that expensive compared to
synthetic and it's alot thicker than 0w30 .
>
> Marshall
>
>
>
> To: DIYGasTurbines@yahoogroups.com
> From: simonbeausoleil@...
> Date: Thu, 12 Nov 2009 01:12:06 +0000
> Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
>
>
>
>
>
> MANY thanks!!! lol i guess this is the 60$ jug right LOL
>
> --- In DIYGasTurbines@yahoogroups.com, "Salvatore" <saiello@...> wrote:
> >
> > Both numbers are indicators of viscosity at different temperatures. Take
a 15W-50 oil. The first indicates how thick the oil would be at winter
temperatures, the oil behaving as if it had a viscosity of "15" and the
second number tells you how thick the oil would be at operating temperatures
if it were a "50" oil.
> >
> > --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@>
wrote:
> > >
> > > ok so what weight should i aim for? what is the main difference
between *w-30 and *w-50? i know the first number is kinda the thickness...
would some 10w-30 syntetic oil be engough?
> > >
> > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> > > >
> > > > Hi Jon
> > > >
> > > > Yep , I'll go along with that , I used 15W-50 semi synthetic in both
bike and kart , a little harder getting spooled up , and a little more of a
wait to get the lube warmed so it can flow thru the finer passageways in the
thrust bearing and provide the correct bearing support/dampering , but
closer to the correct lube for our turbos than the very thin lubes like 0-30
which if the ambiant conditions dictate, is reasonable to use , but for most
of us in warmer climates "ordinary" weight lubes are a better compromise .
> > > >
> > > > On a side note ..........I just received an overhaul kit for a TL92
, my next engine ( 10/94 BB) is going to have "brass bush" bearings and a
standard set of "bits" on the shaft to cut down the amount of work required
, ..............anyway , the thrust bearing is HUGE compared to the one in
my bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm wide by
10mm long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X 10mm for
a total of ~420 sq mms , on a square millimetres of thrust surface per
square inch of compressor rear wall (thats producing the thrust pressure
loads), the TL92 has just on TWICE the ratio of the "fragile" TV84's thrust
bearing , any wonder I wrecked a few of them , the guys at the turbo
overhaul shop had told me they had problems with the TV84 at high boost
levels on their racing trucks , so even with 90psi oil pressure that fragile
thrust bearing was marginal .
> > > >
> > > > Cheers
> > > > John
> > > >
> > > > .
> > > > ----- Original Message -----
> > > > From: j m
> > > > To: DIYGasTurbines@yahoogroups.com
> > > > Sent: Wednesday, November 11, 2009 5:14 AM
> > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > >
> > > >
> > > >
> > > > hi,i used to use 0w30 oil but now use 15w60 oil,really not that bad
spooling up at all. it is quite expensive through!!i use it because the
place i got my turbo "freshened" recommend it.the upside is the ability to
maintain ol pressure at reduced oil flows.
> > > > worth giving a thicker oil a try it seems :-)
> > > > regards jon
> > > >
> > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool"
<simonbeausoleil@> wrote:
> > > > >
> > > > > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!! i
think i'll try with thicker oil... or this winter i could replace the
shurflow pump with a procon pump...
> > > > >
> > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> > > > > >
> > > > > > Hi
> > > > > >
> > > > > > "THE" shurflo doesn't always produce the required flow once
temperatures and pressures come up , other members have experienced the same
problems with their ST/VT-50 turbs and shurflo , the pump is "marginal" on
bigger turbos .
> > > > > >
> > > > > > Cheers
> > > > > > John
> > > > > >
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: lemegacool
> > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > Sent: Monday, November 09, 2009 2:16 PM
> > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > > > >
> > > > > >
> > > > > >
> > > > > > thanks for the answers!
> > > > > >
> > > > > > the oil pump i'm using is "THE" shurflow pump suitable for gt
use... i run it a 12v, i might just drain the oil and replace with 5w-30.
dang what i'll do with all that expensive mobil1 oil... hmmm maybe use it in
my turbo shopping kart LOL (not a gas turbine just a turboed honda 5.5 lol)
> > > > > >
> > > > > > yeah i kinda have some trouble sourcing a factory st-50
gasket...
> > > > > >
> > > > > > and no drain in the cc... but i have a propane pilot flame
before i juice up the diesel so basically what happened i think is that my
pilot shutted off and didn't lit the fuel... oh well
> > > > > >
> > > > > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper
<marshall01@> wrote:
> > > > > > >
> > > > > > >
> > > > > > > Great vid's glad to see another fledgling running . About your
questions : I think 0w30 might be a little thin but am using it myself it
makes starting a little easier . Could you drive the pump a little faster ?
is it pulley driven, could put a smaller pulley on the pump . I am using a
factory gasket for the flange they are made to take the heat . I had noticed
on your hot start vid that it looked like the engine was just about to go to
runaway speed then you got it shut off good thing you had the leaf blower
stuck in the intake so it couldn't get that much air or it would of over
speeded . Are you using a drain valve on the C.C. at it's lowest point ? The
reason i ask this is that if you don't get instant ignition and have the
fuel on it will run out of the flame tube and pool inside the outer housing
and then when you finally get it started the blast of air from the comp will
lift all that fuel into the flame tube and you have an over speed situation
and there isn't much you can doo about it except run like hell .
> > > > > > >
> > > > > > > Marshall
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > From: simonbeausoleil@
> > > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
> > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > thanks for the comment! :)
> > > > > > >
> > > > > > > so... basically i have two main question...
> > > > > > >
> > > > > > > 1: is 0w-30 oil is too thin?
> > > > > > >
> > > > > > > 2: what gasket material should i use on the cc's flange?
> > > > > > >
> > > > > > > thanks!
> > > > > > >
> > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> > > > > > > >
> > > > > > > > Hi
> > > > > > > >
> > > > > > > > Congratulations :-))
> > > > > > > >
> > > > > > > > Just some minor teething problems to sort out
..................LOL....we've all had those .................good one
> > > > > > > >
> > > > > > > > Cheeers
> > > > > > > > John
> > > > > > > >
> > > > > > > >
> > > > > > > > ----- Original Message -----
> > > > > > > > From: lemegacool
> > > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > > Sent: Monday, November 09, 2009 7:44 AM
> > > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > i finally got my big gas turbine to run! omg its such a
feeling being close to that thing when its spinning by itself! ok i'm now an
addict lol
> > > > > > > >
> > > > > > > > http://www.youtube.com/watch?v=Nq8wk8EJBfk
> > > > > > > >
> > > > > > > > still some trouble happened...
> > > > > > > >
> > > > > > > > when the oil warmed up the pump wasnt able to push more than
40psi with the bypass valve completely closed... i suspect 0W-30 oil is
maybe too thin? i would really like to keep the oil press at 50-55 psi
> > > > > > > >
> > > > > > > > second at the end of the vid the compressor pipe blew off in
my face LOL now i know what 25psi of boost in a 4" pipe feels like lol the
thing is my air inlet on the combustion chamber is 3.5" and my rubber
coupler is 4" so i wraped some duct tape around the air inlet to enlarge
it... lol not a good idea it blew righ of... going to make a steel enlarger
tomorrow at work with the CNC plasma
> > > > > > > >
> > > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > >
> > > > > > > > also the "hi temp" gasket maker started to melt and caused
some air pressure loss... what do you guys use for the turbine's flange
gasket???
> > > > > > > >
> > > > > > > > and finally i did a hot start... even with all the
precautions i took
> > > > > > > > DUDE its SCARY!!!
> > > > > > > >
> > > > > > > > http://www.youtube.com/watch?v=j1F0BxJ9Bf8
> > > > > > > >
> > > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > >
> > > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > >
> > > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8098.jpg[/IMG]
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > [Non-text portions of this message have been removed]
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > __________________________________________________________
> > > > > > > Ready. Set. Get a great deal on Windows 7. See fantastic deals
on Windows 7 now
> > > > > > > http://go.microsoft.com/?linkid=9691818
> > > > > > >
> > > > > > > [Non-text portions of this message have been removed]
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > [Non-text portions of this message have been removed]
> > > > > >
> > > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> >
>
>
>
>
>
> __________________________________________________________
> Windows Live: Friends get your Flickr, Yelp, and Digg updates when they
e-mail you.
> http://go.microsoft.com/?linkid=9691817
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>





_________________________________________________________________
New! Open Messenger faster on the MSN homepage
http://go.microsoft.com/?linkid=9677405

[Non-text portions of this message have been removed]

are there nice turbo for a project ?

are they big enough ??pounds?  you told me there diferent turbine scroll what is
better small or large? i make sure to have the same numbers thank a lot for your
advice and the time you take to give it to me, i do aprreciate

From: John WALLIS (Racketmotorman) <racketmotorman@...>

To: DIYGasTurbines@yahoogroups.com
Sent: Thu, November 12, 2009 2:26:07 PM
Subject: Re: [DIYGasTurbines] now no choice


Hi Eddy

Which one of the GT45 family http://www.turbobyg arrett.com/ turbobygarrett/
catelog/Turbocha rgers/GT45/ GT4508R.htm have you got , depending on the turbine
scroll A/R being used  you'll have different flow/performance .

Cheers
John
----- Original Message -----
From: Eddy Dupuis
To: diygasturbines@ yahoogroups. com
Sent: Friday, November 13, 2009 3:09 AM
Subject: [DIYGasTurbines] now no choice

i deal with a compagnie and they make me a great deal on two GT45 from garrett
brand new one i aint gona refuse
and it be good for my project
eddy

____________ _________ _________ _________ _________ _________ _
Looking for the perfect gift? Give the gift of Flickr!

http://www.flickr. com/gift/

[Non-text portions of this message have been removed]

[Non-text portions of this message have been removed]





       __________________________________________________________________
Be smarter than spam. See how smart SpamGuard is at giving junk email the boot
with the All-new Yahoo! Mail.  Click on Options in Mail and switch to New Mail
today or register for free at http://mail.yahoo.ca

[Non-text portions of this message have been removed]

Hi Eddy

Which one of the GT45 family
http://www.turbobygarrett.com/turbobygarrett/catelog/Turbochargers/GT45/GT4508R.\
htm   have you got , depending on the turbine scroll A/R being used  you'll have
different flow/performance .

Cheers
John
   ----- Original Message -----
   From: Eddy Dupuis
   To: diygasturbines@yahoogroups.com
   Sent: Friday, November 13, 2009 3:09 AM
   Subject: [DIYGasTurbines] now no choice



   i deal with a compagnie and they make me a great deal on two GT45 from garrett
brand new one i aint gona refuse
   and it be good for my project
   eddy

   __________________________________________________________
   Looking for the perfect gift? Give the gift of Flickr!

   http://www.flickr.com/gift/

   [Non-text portions of this message have been removed]





[Non-text portions of this message have been removed]

Hi,

Contact;

All Custom Gasket & Materials Ltd.
355 Watline Avenue, Mississauga
Ontario, Canada
L4Z 1P3

Phone: 905-507-4580
Fax: 905-507-4589

Web: http://www.allcustomgasket.com


They carry everything including flexible graphite.

See if they will sell direct or if they have dealers in Canada.

FYI all I did was Google -graphite gasket in canada-.

Good luck,

Roy



--- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@...> wrote:
>
> thanks all!!! unfortunately i cant order from mc master since i'm in canada...
heh! i'll give the exhaust paste a try i guess. and ok i'll look into that kind
of oil!
>
> many thanks for the answers!
>
>
> > > >   >
> > > >   >
> > > >   > thanks for the comment! :)
> > > >   >
> > > >   > so... basically i have two main question...
> > > >   >
> > > >   > 1: is 0w-30 oil is too thin?
> > > >   >
> > > >   > 2: what gasket material should i use on the cc's flange?
> > > >   >
> > > >   > thanks!
> > > >   >

i deal with a compagnie and they make me a great deal on two GT45 from garrett
brand new one i aint gona refuse
and it be good for my project
eddy



       __________________________________________________________________
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[Non-text portions of this message have been removed]

one of the reasons that a tractor has little trouble with any oil is that
the volume of oil is considerable with large area and small porosity oil
filters and large cooling capacity.  these little gas turbines have an oil
capacity of maybe 2 gallons?  this small total volume heats very quickly and
very likely exceeds 180 degrees F.  non-synthetic oil starts to carbonize at
160 dgrees.  this is why it turns black.  synthetic oils have various flash
points of 220 to 520 degrees F.   the higher the flash point, the more
durable the oil.  performance specs for good oils are available on-line from
the manfacturors.  thrust bearings and especially babbit types should
maintain oil drain temps below 180 F. in order to maintain bearing
integrity.

----- Original Message -----
From: "Marshall Piper" <marshall01@...>
To: <diygasturbines@yahoogroups.com>
Sent: Wednesday, November 11, 2009 8:30 PM
Subject: RE: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
!!! vid and pics


>
> Why don't you just try15w40 oil non synthetic we use this oil in our
tractors and combines with good results . We get many thousands of hours of
use out of these engines without any problems and the turbo is usually the
last thing to worry about . the oil isn't that expensive compared to
synthetic and it's alot thicker than 0w30 .
>
> Marshall
>
>
>
> To: DIYGasTurbines@yahoogroups.com
> From: simonbeausoleil@...
> Date: Thu, 12 Nov 2009 01:12:06 +0000
> Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
>
>
>
>
>
> MANY thanks!!! lol i guess this is the 60$ jug right LOL
>
> --- In DIYGasTurbines@yahoogroups.com, "Salvatore" <saiello@...> wrote:
> >
> > Both numbers are indicators of viscosity at different temperatures. Take
a 15W-50 oil. The first indicates how thick the oil would be at winter
temperatures, the oil behaving as if it had a viscosity of "15" and the
second number tells you how thick the oil would be at operating temperatures
if it were a "50" oil.
> >
> > --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@>
wrote:
> > >
> > > ok so what weight should i aim for? what is the main difference
between *w-30 and *w-50? i know the first number is kinda the thickness...
would some 10w-30 syntetic oil be engough?
> > >
> > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> > > >
> > > > Hi Jon
> > > >
> > > > Yep , I'll go along with that , I used 15W-50 semi synthetic in both
bike and kart , a little harder getting spooled up , and a little more of a
wait to get the lube warmed so it can flow thru the finer passageways in the
thrust bearing and provide the correct bearing support/dampering , but
closer to the correct lube for our turbos than the very thin lubes like 0-30
which if the ambiant conditions dictate, is reasonable to use , but for most
of us in warmer climates "ordinary" weight lubes are a better compromise .
> > > >
> > > > On a side note ..........I just received an overhaul kit for a TL92
, my next engine ( 10/94 BB) is going to have "brass bush" bearings and a
standard set of "bits" on the shaft to cut down the amount of work required
, ..............anyway , the thrust bearing is HUGE compared to the one in
my bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm wide by
10mm long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X 10mm for
a total of ~420 sq mms , on a square millimetres of thrust surface per
square inch of compressor rear wall (thats producing the thrust pressure
loads), the TL92 has just on TWICE the ratio of the "fragile" TV84's thrust
bearing , any wonder I wrecked a few of them , the guys at the turbo
overhaul shop had told me they had problems with the TV84 at high boost
levels on their racing trucks , so even with 90psi oil pressure that fragile
thrust bearing was marginal .
> > > >
> > > > Cheers
> > > > John
> > > >
> > > > .
> > > > ----- Original Message -----
> > > > From: j m
> > > > To: DIYGasTurbines@yahoogroups.com
> > > > Sent: Wednesday, November 11, 2009 5:14 AM
> > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > >
> > > >
> > > >
> > > > hi,i used to use 0w30 oil but now use 15w60 oil,really not that bad
spooling up at all. it is quite expensive through!!i use it because the
place i got my turbo "freshened" recommend it.the upside is the ability to
maintain ol pressure at reduced oil flows.
> > > > worth giving a thicker oil a try it seems :-)
> > > > regards jon
> > > >
> > > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool"
<simonbeausoleil@> wrote:
> > > > >
> > > > > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!! i
think i'll try with thicker oil... or this winter i could replace the
shurflow pump with a procon pump...
> > > > >
> > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> > > > > >
> > > > > > Hi
> > > > > >
> > > > > > "THE" shurflo doesn't always produce the required flow once
temperatures and pressures come up , other members have experienced the same
problems with their ST/VT-50 turbs and shurflo , the pump is "marginal" on
bigger turbos .
> > > > > >
> > > > > > Cheers
> > > > > > John
> > > > > >
> > > > > >
> > > > > > ----- Original Message -----
> > > > > > From: lemegacool
> > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > Sent: Monday, November 09, 2009 2:16 PM
> > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > > > >
> > > > > >
> > > > > >
> > > > > > thanks for the answers!
> > > > > >
> > > > > > the oil pump i'm using is "THE" shurflow pump suitable for gt
use... i run it a 12v, i might just drain the oil and replace with 5w-30.
dang what i'll do with all that expensive mobil1 oil... hmmm maybe use it in
my turbo shopping kart LOL (not a gas turbine just a turboed honda 5.5 lol)
> > > > > >
> > > > > > yeah i kinda have some trouble sourcing a factory st-50
gasket...
> > > > > >
> > > > > > and no drain in the cc... but i have a propane pilot flame
before i juice up the diesel so basically what happened i think is that my
pilot shutted off and didn't lit the fuel... oh well
> > > > > >
> > > > > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper
<marshall01@> wrote:
> > > > > > >
> > > > > > >
> > > > > > > Great vid's glad to see another fledgling running . About your
questions : I think 0w30 might be a little thin but am using it myself it
makes starting a little easier . Could you drive the pump a little faster ?
is it pulley driven, could put a smaller pulley on the pump . I am using a
factory gasket for the flange they are made to take the heat . I had noticed
on your hot start vid that it looked like the engine was just about to go to
runaway speed then you got it shut off good thing you had the leaf blower
stuck in the intake so it couldn't get that much air or it would of over
speeded . Are you using a drain valve on the C.C. at it's lowest point ? The
reason i ask this is that if you don't get instant ignition and have the
fuel on it will run out of the flame tube and pool inside the outer housing
and then when you finally get it started the blast of air from the comp will
lift all that fuel into the flame tube and you have an over speed situation
and there isn't much you can doo about it except run like hell .
> > > > > > >
> > > > > > > Marshall
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > From: simonbeausoleil@
> > > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
> > > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > thanks for the comment! :)
> > > > > > >
> > > > > > > so... basically i have two main question...
> > > > > > >
> > > > > > > 1: is 0w-30 oil is too thin?
> > > > > > >
> > > > > > > 2: what gasket material should i use on the cc's flange?
> > > > > > >
> > > > > > > thanks!
> > > > > > >
> > > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> > > > > > > >
> > > > > > > > Hi
> > > > > > > >
> > > > > > > > Congratulations :-))
> > > > > > > >
> > > > > > > > Just some minor teething problems to sort out
..................LOL....we've all had those .................good one
> > > > > > > >
> > > > > > > > Cheeers
> > > > > > > > John
> > > > > > > >
> > > > > > > >
> > > > > > > > ----- Original Message -----
> > > > > > > > From: lemegacool
> > > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > > Sent: Monday, November 09, 2009 7:44 AM
> > > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > i finally got my big gas turbine to run! omg its such a
feeling being close to that thing when its spinning by itself! ok i'm now an
addict lol
> > > > > > > >
> > > > > > > > http://www.youtube.com/watch?v=Nq8wk8EJBfk
> > > > > > > >
> > > > > > > > still some trouble happened...
> > > > > > > >
> > > > > > > > when the oil warmed up the pump wasnt able to push more than
40psi with the bypass valve completely closed... i suspect 0W-30 oil is
maybe too thin? i would really like to keep the oil press at 50-55 psi
> > > > > > > >
> > > > > > > > second at the end of the vid the compressor pipe blew off in
my face LOL now i know what 25psi of boost in a 4" pipe feels like lol the
thing is my air inlet on the combustion chamber is 3.5" and my rubber
coupler is 4" so i wraped some duct tape around the air inlet to enlarge
it... lol not a good idea it blew righ of... going to make a steel enlarger
tomorrow at work with the CNC plasma
> > > > > > > >
> > > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > >
> > > > > > > > also the "hi temp" gasket maker started to melt and caused
some air pressure loss... what do you guys use for the turbine's flange
gasket???
> > > > > > > >
> > > > > > > > and finally i did a hot start... even with all the
precautions i took
> > > > > > > > DUDE its SCARY!!!
> > > > > > > >
> > > > > > > > http://www.youtube.com/watch?v=j1F0BxJ9Bf8
> > > > > > > >
> > > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > >
> > > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > > >
> > > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8098.jpg[/IMG]
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > >
> > > > > > > > [Non-text portions of this message have been removed]
> > > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > __________________________________________________________
> > > > > > > Ready. Set. Get a great deal on Windows 7. See fantastic deals
on Windows 7 now
> > > > > > > http://go.microsoft.com/?linkid=9691818
> > > > > > >
> > > > > > > [Non-text portions of this message have been removed]
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > [Non-text portions of this message have been removed]
> > > > > >
> > > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > [Non-text portions of this message have been removed]
> > > >
> > >
> >
>
>
>
>
>
> _________________________________________________________________
> Windows Live: Friends get your Flickr, Yelp, and Digg updates when they
e-mail you.
> http://go.microsoft.com/?linkid=9691817
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>

Why don't you just try15w40 oil non synthetic we use this oil in our tractors
and combines with good results . We get many thousands of hours of use out of
these engines without any problems and the turbo is usually the last thing to
worry about . the oil isn't that expensive compared to synthetic and it's alot
thicker than 0w30 .

Marshall



To: DIYGasTurbines@yahoogroups.com
From: simonbeausoleil@...
Date: Thu, 12 Nov 2009 01:12:06 +0000
Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!! vid
and pics





MANY thanks!!! lol i guess this is the 60$ jug right LOL

--- In DIYGasTurbines@yahoogroups.com, "Salvatore" <saiello@...> wrote:
>
> Both numbers are indicators of viscosity at different temperatures. Take a
15W-50 oil. The first indicates how thick the oil would be at winter
temperatures, the oil behaving as if it had a viscosity of "15" and the second
number tells you how thick the oil would be at operating temperatures if it were
a "50" oil.
>
> --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@> wrote:
> >
> > ok so what weight should i aim for? what is the main difference between
*w-30 and *w-50? i know the first number is kinda the thickness... would some
10w-30 syntetic oil be engough?
> >
> > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS \(Racketmotorman\)"
<racketmotorman@> wrote:
> > >
> > > Hi Jon
> > >
> > > Yep , I'll go along with that , I used 15W-50 semi synthetic in both bike
and kart , a little harder getting spooled up , and a little more of a wait to
get the lube warmed so it can flow thru the finer passageways in the thrust
bearing and provide the correct bearing support/dampering , but closer to the
correct lube for our turbos than the very thin lubes like 0-30 which if the
ambiant conditions dictate, is reasonable to use , but for most of us in warmer
climates "ordinary" weight lubes are a better compromise .
> > >
> > > On a side note ..........I just received an overhaul kit for a TL92 , my
next engine ( 10/94 BB) is going to have "brass bush" bearings and a standard
set of "bits" on the shaft to cut down the amount of work required ,
..............anyway , the thrust bearing is HUGE compared to the one in my
bikes TV84 , the TV84 had 3 "pads" taking the thrust , each ~5mm wide by 10mm
long for a total of ~150 sq mms , the TL92 has 6 "pads" 7mm X 10mm for a total
of ~420 sq mms , on a square millimetres of thrust surface per square inch of
compressor rear wall (thats producing the thrust pressure loads), the TL92 has
just on TWICE the ratio of the "fragile" TV84's thrust bearing , any wonder I
wrecked a few of them , the guys at the turbo overhaul shop had told me they had
problems with the TV84 at high boost levels on their racing trucks , so even
with 90psi oil pressure that fragile thrust bearing was marginal .
> > >
> > > Cheers
> > > John
> > >
> > > .
> > > ----- Original Message -----
> > > From: j m
> > > To: DIYGasTurbines@yahoogroups.com
> > > Sent: Wednesday, November 11, 2009 5:14 AM
> > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
> > >
> > >
> > >
> > > hi,i used to use 0w30 oil but now use 15w60 oil,really not that bad
spooling up at all. it is quite expensive through!!i use it because the place i
got my turbo "freshened" recommend it.the upside is the ability to maintain ol
pressure at reduced oil flows.
> > > worth giving a thicker oil a try it seems :-)
> > > regards jon
> > >
> > > --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@>
wrote:
> > > >
> > > > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!! i think
i'll try with thicker oil... or this winter i could replace the shurflow pump
with a procon pump...
> > > >
> > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS \(Racketmotorman\)"
<racketmotorman@> wrote:
> > > > >
> > > > > Hi
> > > > >
> > > > > "THE" shurflo doesn't always produce the required flow once
temperatures and pressures come up , other members have experienced the same
problems with their ST/VT-50 turbs and shurflo , the pump is "marginal" on
bigger turbos .
> > > > >
> > > > > Cheers
> > > > > John
> > > > >
> > > > >
> > > > > ----- Original Message -----
> > > > > From: lemegacool
> > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > Sent: Monday, November 09, 2009 2:16 PM
> > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
!!! vid and pics
> > > > >
> > > > >
> > > > >
> > > > > thanks for the answers!
> > > > >
> > > > > the oil pump i'm using is "THE" shurflow pump suitable for gt use... i
run it a 12v, i might just drain the oil and replace with 5w-30. dang what i'll
do with all that expensive mobil1 oil... hmmm maybe use it in my turbo shopping
kart LOL (not a gas turbine just a turboed honda 5.5 lol)
> > > > >
> > > > > yeah i kinda have some trouble sourcing a factory st-50 gasket...
> > > > >
> > > > > and no drain in the cc... but i have a propane pilot flame before i
juice up the diesel so basically what happened i think is that my pilot shutted
off and didn't lit the fuel... oh well
> > > > >
> > > > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper <marshall01@>
wrote:
> > > > > >
> > > > > >
> > > > > > Great vid's glad to see another fledgling running . About your
questions : I think 0w30 might be a little thin but am using it myself it makes
starting a little easier . Could you drive the pump a little faster ? is it
pulley driven, could put a smaller pulley on the pump . I am using a factory
gasket for the flange they are made to take the heat . I had noticed on your hot
start vid that it looked like the engine was just about to go to runaway speed
then you got it shut off good thing you had the leaf blower stuck in the intake
so it couldn't get that much air or it would of over speeded . Are you using a
drain valve on the C.C. at it's lowest point ? The reason i ask this is that if
you don't get instant ignition and have the fuel on it will run out of the flame
tube and pool inside the outer housing and then when you finally get it started
the blast of air from the comp will lift all that fuel into the flame tube and
you have an over speed situation and there isn't much you can doo about it
except run like hell .
> > > > > >
> > > > > > Marshall
> > > > > >
> > > > > >
> > > > > >
> > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > From: simonbeausoleil@
> > > > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
> > > > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > thanks for the comment! :)
> > > > > >
> > > > > > so... basically i have two main question...
> > > > > >
> > > > > > 1: is 0w-30 oil is too thin?
> > > > > >
> > > > > > 2: what gasket material should i use on the cc's flange?
> > > > > >
> > > > > > thanks!
> > > > > >
> > > > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> > > > > > >
> > > > > > > Hi
> > > > > > >
> > > > > > > Congratulations :-))
> > > > > > >
> > > > > > > Just some minor teething problems to sort out
..................LOL....we've all had those .................good one
> > > > > > >
> > > > > > > Cheeers
> > > > > > > John
> > > > > > >
> > > > > > >
> > > > > > > ----- Original Message -----
> > > > > > > From: lemegacool
> > > > > > > To: DIYGasTurbines@yahoogroups.com
> > > > > > > Sent: Monday, November 09, 2009 7:44 AM
> > > > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is FINALLY running
!!! vid and pics
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > i finally got my big gas turbine to run! omg its such a feeling
being close to that thing when its spinning by itself! ok i'm now an addict lol
> > > > > > >
> > > > > > > http://www.youtube.com/watch?v=Nq8wk8EJBfk
> > > > > > >
> > > > > > > still some trouble happened...
> > > > > > >
> > > > > > > when the oil warmed up the pump wasnt able to push more than 40psi
with the bypass valve completely closed... i suspect 0W-30 oil is maybe too
thin? i would really like to keep the oil press at 50-55 psi
> > > > > > >
> > > > > > > second at the end of the vid the compressor pipe blew off in my
face LOL now i know what 25psi of boost in a 4" pipe feels like lol the thing is
my air inlet on the combustion chamber is 3.5" and my rubber coupler is 4" so i
wraped some duct tape around the air inlet to enlarge it... lol not a good idea
it blew righ of... going to make a steel enlarger tomorrow at work with the CNC
plasma
> > > > > > >
> > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > >
> > > > > > > also the "hi temp" gasket maker started to melt and caused some
air pressure loss... what do you guys use for the turbine's flange gasket???
> > > > > > >
> > > > > > > and finally i did a hot start... even with all the precautions i
took
> > > > > > > DUDE its SCARY!!!
> > > > > > >
> > > > > > > http://www.youtube.com/watch?v=j1F0BxJ9Bf8
> > > > > > >
> > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > >
> > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > > > > > >
> > > > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8098.jpg[/IMG]
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > >
> > > > > > > [Non-text portions of this message have been removed]
> > > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > > __________________________________________________________
> > > > > > Ready. Set. Get a great deal on Windows 7. See fantastic deals on
Windows 7 now
> > > > > > http://go.microsoft.com/?linkid=9691818
> > > > > >
> > > > > > [Non-text portions of this message have been removed]
> > > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > >
> > > > > [Non-text portions of this message have been removed]
> > > > >
> > > >
> > >
> > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
>





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[Non-text portions of this message have been removed]

MANY thanks!!!  lol i guess this is the 60$ jug right LOL

--- In DIYGasTurbines@yahoogroups.com, "Salvatore" <saiello@...> wrote:
>
> Both numbers are indicators of viscosity at different temperatures. Take a
15W-50 oil. The first indicates how thick the oil would be at winter
temperatures, the oil behaving as if it had a viscosity of "15" and the second
number tells you how thick the oil would be at operating temperatures if it were
a "50" oil.
>
> --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@> wrote:
> >
> > ok so what weight should i aim for? what is the main difference between
*w-30 and *w-50? i know the first number is kinda the thickness... would some
10w-30 syntetic oil be engough?
> >
> > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS \(Racketmotorman\)"
<racketmotorman@> wrote:
> > >
> > > Hi Jon
> > >
> > > Yep , I'll go along with that , I used 15W-50 semi synthetic in both bike
and kart , a little harder getting spooled up , and a little more of a wait to
get the lube warmed  so it can flow thru the finer passageways in the thrust
bearing  and provide the correct bearing support/dampering , but closer to the
correct lube for our turbos  than the very thin lubes  like 0-30  which if the
ambiant conditions dictate,  is reasonable to use , but for most of us in warmer
climates  "ordinary" weight lubes  are a better compromise .
> > >
> > > On a side note ..........I just received an overhaul kit for a TL92 ,  my
next engine ( 10/94 BB)  is going to have "brass bush" bearings and a standard
set of "bits" on the shaft to cut down the amount of work required ,
..............anyway , the thrust bearing is HUGE  compared to the one in my
bikes TV84  , the TV84 had 3 "pads" taking the thrust , each ~5mm wide by 10mm
long  for a total of ~150 sq mms , the TL92 has 6 "pads"  7mm X 10mm  for a
total of ~420 sq mms ,  on a square millimetres of thrust surface per square
inch of compressor rear wall (thats producing the thrust pressure loads), the
TL92 has just on TWICE the  ratio of the "fragile" TV84's thrust bearing , any
wonder I wrecked a few of them , the guys at the turbo overhaul shop  had told
me they had problems with the TV84 at high boost levels on their racing trucks ,
so even with 90psi oil pressure  that fragile thrust bearing was marginal .
> > >
> > > Cheers
> > > John
> > >
> > >  .
> > >   ----- Original Message -----
> > >   From: j m
> > >   To: DIYGasTurbines@yahoogroups.com
> > >   Sent: Wednesday, November 11, 2009 5:14 AM
> > >   Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
!!! vid and pics
> > >
> > >
> > >
> > >   hi,i used to use 0w30 oil but now use 15w60 oil,really not that bad
spooling up at all. it is quite expensive through!!i use it because the place i
got my turbo "freshened" recommend it.the upside is the ability to maintain ol
pressure at reduced oil flows.
> > >   worth giving a thicker oil a try it seems :-)
> > >   regards jon
> > >
> > >   --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@>
wrote:
> > >   >
> > >   > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!! i think
i'll try with thicker oil... or this winter i could replace the shurflow pump
with a procon pump...
> > >   >
> > >   > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> > >   > >
> > >   > > Hi
> > >   > >
> > >   > > "THE" shurflo doesn't always produce the required flow once
temperatures and pressures come up , other members have experienced the same
problems with their ST/VT-50 turbs and shurflo , the pump is "marginal" on
bigger turbos .
> > >   > >
> > >   > > Cheers
> > >   > > John
> > >   > >
> > >   > >
> > >   > > ----- Original Message -----
> > >   > > From: lemegacool
> > >   > > To: DIYGasTurbines@yahoogroups.com
> > >   > > Sent: Monday, November 09, 2009 2:16 PM
> > >   > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> > >   > >
> > >   > >
> > >   > >
> > >   > > thanks for the answers!
> > >   > >
> > >   > > the oil pump i'm using is "THE" shurflow pump suitable for gt use...
i run it a 12v, i might just drain the oil and replace with 5w-30. dang what
i'll do with all that expensive mobil1 oil... hmmm maybe use it in my turbo
shopping kart LOL (not a gas turbine just a turboed honda 5.5 lol)
> > >   > >
> > >   > > yeah i kinda have some trouble sourcing a factory st-50 gasket...
> > >   > >
> > >   > > and no drain in the cc... but i have a propane pilot flame before i
juice up the diesel so basically what happened i think is that my pilot shutted
off and didn't lit the fuel... oh well
> > >   > >
> > >   > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper <marshall01@>
wrote:
> > >   > > >
> > >   > > >
> > >   > > > Great vid's glad to see another fledgling running . About your
questions : I think 0w30 might be a little thin but am using it myself it makes
starting a little easier . Could you drive the pump a little faster ? is it
pulley driven, could put a smaller pulley on the pump . I am using a factory
gasket for the flange they are made to take the heat . I had noticed on your hot
start vid that it looked like the engine was just about to go to runaway speed
then you got it shut off good thing you had the leaf blower stuck in the intake
so it couldn't get that much air or it would of over speeded . Are you using a
drain valve on the C.C. at it's lowest point ? The reason i ask this is that if
you don't get instant ignition and have the fuel on it will run out of the flame
tube and pool inside the outer housing and then when you finally get it started
the blast of air from the comp will lift all that fuel into the flame tube and
you have an over speed situation and there isn't much you can doo about it
except run like hell .
> > >   > > >
> > >   > > > Marshall
> > >   > > >
> > >   > > >
> > >   > > >
> > >   > > > To: DIYGasTurbines@yahoogroups.com
> > >   > > > From: simonbeausoleil@
> > >   > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
> > >   > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> > >   > > >
> > >   > > >
> > >   > > >
> > >   > > >
> > >   > > >
> > >   > > > thanks for the comment! :)
> > >   > > >
> > >   > > > so... basically i have two main question...
> > >   > > >
> > >   > > > 1: is 0w-30 oil is too thin?
> > >   > > >
> > >   > > > 2: what gasket material should i use on the cc's flange?
> > >   > > >
> > >   > > > thanks!
> > >   > > >
> > >   > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> > >   > > > >
> > >   > > > > Hi
> > >   > > > >
> > >   > > > > Congratulations :-))
> > >   > > > >
> > >   > > > > Just some minor teething problems to sort out
..................LOL....we've all had those .................good one
> > >   > > > >
> > >   > > > > Cheeers
> > >   > > > > John
> > >   > > > >
> > >   > > > >
> > >   > > > > ----- Original Message -----
> > >   > > > > From: lemegacool
> > >   > > > > To: DIYGasTurbines@yahoogroups.com
> > >   > > > > Sent: Monday, November 09, 2009 7:44 AM
> > >   > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is FINALLY
running !!! vid and pics
> > >   > > > >
> > >   > > > >
> > >   > > > >
> > >   > > > > i finally got my big gas turbine to run! omg its such a feeling
being close to that thing when its spinning by itself! ok i'm now an addict lol
> > >   > > > >
> > >   > > > > http://www.youtube.com/watch?v=Nq8wk8EJBfk
> > >   > > > >
> > >   > > > > still some trouble happened...
> > >   > > > >
> > >   > > > > when the oil warmed up the pump wasnt able to push more than
40psi with the bypass valve completely closed... i suspect 0W-30 oil is maybe
too thin? i would really like to keep the oil press at 50-55 psi
> > >   > > > >
> > >   > > > > second at the end of the vid the compressor pipe blew off in my
face LOL now i know what 25psi of boost in a 4" pipe feels like lol the thing is
my air inlet on the combustion chamber is 3.5" and my rubber coupler is 4" so i
wraped some duct tape around the air inlet to enlarge it... lol not a good idea
it blew righ of... going to make a steel enlarger tomorrow at work with the CNC
plasma
> > >   > > > >
> > >   > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > >   > > > >
> > >   > > > > also the "hi temp" gasket maker started to melt and caused some
air pressure loss... what do you guys use for the turbine's flange gasket???
> > >   > > > >
> > >   > > > > and finally i did a hot start... even with all the precautions i
took
> > >   > > > > DUDE its SCARY!!!
> > >   > > > >
> > >   > > > > http://www.youtube.com/watch?v=j1F0BxJ9Bf8
> > >   > > > >
> > >   > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > >   > > > >
> > >   > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> > >   > > > >
> > >   > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8098.jpg[/IMG]
> > >   > > > >
> > >   > > > >
> > >   > > > >
> > >   > > > >
> > >   > > > >
> > >   > > > > [Non-text portions of this message have been removed]
> > >   > > > >
> > >   > > >
> > >   > > >
> > >   > > >
> > >   > > >
> > >   > > >
> > >   > > > __________________________________________________________
> > >   > > > Ready. Set. Get a great deal on Windows 7. See fantastic deals on
Windows 7 now
> > >   > > > http://go.microsoft.com/?linkid=9691818
> > >   > > >
> > >   > > > [Non-text portions of this message have been removed]
> > >   > > >
> > >   > >
> > >   > >
> > >   > >
> > >   > >
> > >   > >
> > >   > > [Non-text portions of this message have been removed]
> > >   > >
> > >   >
> > >
> > >
> > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
>

now i was checking on gt 60 dont know about them but maybe people will answer me
and guide me to a goor road
eddy   mothman1956

note if you have aa chance go look at my web site thing change in my project and
sowere else      http://www.eddy-dupuis2000.com





________________________________
From: Eddy Dupuis <eddy_dupuis2000@...>
To: DIYGasTurbines@yahoogroups.com
Sent: Wed, November 11, 2009 5:33:49 AM
Subject: Re: [DIYGasTurbines] ratio of a transmition


thank a lot rc don find a god trick to wen we see the propeller going on
eddy

____________ _________ _________ __
From: John WALLIS (Racketmotorman) <racketmotorman@ gmail.com>
To: DIYGasTurbines@ yahoogroups. com
Sent: Tue, November 10, 2009 11:32:12 PM
Subject: Re: [DIYGasTurbines] ratio of a transmition

Hi Eddy

On my kart with its direct drive using karting chain and sprockets  I used a 10
tooth freepower sprocket driving an 81 tooth on the axle , you might have larger
wheel and would require a bit more gearing so try the 10 tooth to an 86 tooth ,
or larger if you can get one ,  on the axle ,........... ......... ...with good
quality racing kart chain you should be able to spin the freepower out to
~20,000 rpm before encountering chain problems .

Cheers
John

----- Original Message -----
From: mothman1956
To: DIYGasTurbines@ yahoogroups. com
Sent: Tuesday, November 10, 2009 6:57 AM
Subject: [DIYGasTurbines] ratio of a transmition

i know i supose to read but i have so many things to do at the same time .
i like to know what ratio do you have ono the transmition of your go kart
eddy
thank you

[Non-text portions of this message have been removed]

____________ _________ _________ _________ _________ _________ _
Looking for the perfect gift? Give the gift of Flickr!

http://www.flickr. com/gift/

[Non-text portions of this message have been removed]





       __________________________________________________________________
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[Non-text portions of this message have been removed]

Hi Eddy

Theres nothing wrong with ball bearing turbo for our use , the reputable turbo
manufacturers wouldn't put on the market a product that fails , they'd be out of
business very quickly .

A turbo like the GT4708R only spins to ~100, 000 rpm , but for our use somewhere
between 85-90,000 is going to provide best results , above those rpm the comp
efficiency starts to drop off too quickly making it pointless to run up at the
extra rpm , but it does provide a safety buffer in case of a bit of a runaway .

The GT6041 has "brass bush" bearings .

To choose the right turbo,  you first need to determine what you want to achieve
from the engine , then find a turbo that can do the job ,
.............................so what do you want to achieve ??

Cheers
John


   ----- Original Message -----
   From: Eddy Dupuis
   To: DIYGasTurbines@yahoogroups.com
   Sent: Wednesday, November 11, 2009 8:31 PM
   Subject: Re: [DIYGasTurbines] turbo garrett



   what i am scare with bearing is the fact that they are bearing , everything is
in contact and there a lota thing at +130k rpm they have to be well balance they
scare me
   i do prefer by a lot floating one at lease no contact on this one i whish i
have the experience tochoose the right turbo.
   eddy

   ________________________________
   From: John WALLIS (Racketmotorman) <racketmotorman@...>
   To: DIYGasTurbines@yahoogroups.com
   Sent: Tue, November 10, 2009 11:26:24 PM
   Subject: Re: [DIYGasTurbines] turbo garrett

   Hi Eddy

   Any of the Garrett GT turbos with a number ending in "R" have ball bearings
and will require less oil for lubrication than a "brass bush" bearing equiped
turbo of comparable size .

   The GT4508R has a bit of an undersized turbine wheel for its comp size , the
GT4708R with a 1.39 A?R scroll on the turb, # 769112-4 , is a better matching of
comp and turb flows .

   Cheers
   John

   ----- Original Message -----
   From: Eddy Dupuis
   To: diygasturbines@ yahoogroups. com
   Sent: Monday, November 09, 2009 11:34 PM
   Subject: [DIYGasTurbines] turbo garrett

   Turbochargers >GT45 Family > GT4508R - 742581-4 i foung this turbo that
catrpillr put on there engine i like to konw what you people think about it
   and since i ear from you they were probleme sometime with surflo and the gt 50
   i go forthose gt 45
   eddy

   ____________ _________ _________ _________ _________ _________ _
   Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your
favourite sites. Download it now
   http://ca.toolbar. yahoo.com.

   [Non-text portions of this message have been removed]

   [Non-text portions of this message have been removed]

   __________________________________________________________
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Get it Now for Free! at http://downloads.yahoo.com/ca/internetexplorer/

   [Non-text portions of this message have been removed]





[Non-text portions of this message have been removed]

thank a lot rc don find a god trick to wen we see the propeller going on
eddy




________________________________
From: John WALLIS (Racketmotorman) <racketmotorman@...>
To: DIYGasTurbines@yahoogroups.com
Sent: Tue, November 10, 2009 11:32:12 PM
Subject: Re: [DIYGasTurbines] ratio of a transmition


Hi Eddy

On my kart with its direct drive using karting chain and sprockets  I used a 10
tooth freepower sprocket driving an 81 tooth on the axle , you might have larger
wheel and would require a bit more gearing so try the 10 tooth to an 86 tooth ,
or larger if you can get one ,  on the axle ,........... ......... ...with good
quality racing kart chain you should be able to spin the freepower out to
~20,000 rpm before encountering chain problems .

Cheers
John

----- Original Message -----
From: mothman1956
To: DIYGasTurbines@ yahoogroups. com
Sent: Tuesday, November 10, 2009 6:57 AM
Subject: [DIYGasTurbines] ratio of a transmition

i know i supose to read but i have so many things to do at the same time .
i like to know what ratio do you have ono the transmition of your go kart
eddy
thank you

[Non-text portions of this message have been removed]





       __________________________________________________________________
Looking for the perfect gift? Give the gift of Flickr!

http://www.flickr.com/gift/

[Non-text portions of this message have been removed]

what i am scare with bearing is the fact that they are bearing , everything is
in contact and there a lota thing at +130k rpm they have to be well balance they
scare me
i do prefer by a lot floating one at lease no contact on this one i whish i have
the experience tochoose the right turbo.
eddy




________________________________
From: John WALLIS (Racketmotorman) <racketmotorman@...>
To: DIYGasTurbines@yahoogroups.com
Sent: Tue, November 10, 2009 11:26:24 PM
Subject: Re: [DIYGasTurbines] turbo garrett


Hi Eddy

Any of the Garrett GT turbos with a number ending in "R"   have ball bearings
and will require less oil  for lubrication  than a "brass bush" bearing equiped
turbo of comparable size .

The GT4508R has a bit of an undersized turbine wheel  for its comp size ,  the
GT4708R  with a 1.39 A?R scroll on the turb,   # 769112-4 ,  is a better
matching of comp and turb flows .

Cheers
John

----- Original Message -----
From: Eddy Dupuis
To: diygasturbines@ yahoogroups. com
Sent: Monday, November 09, 2009 11:34 PM
Subject: [DIYGasTurbines] turbo garrett

Turbochargers >GT45 Family > GT4508R - 742581-4 i foung this turbo that
catrpillr put on there engine i like to konw what you people think about it
and since i ear from you they were probleme sometime with surflo and the gt 50
i go forthose gt 45
eddy

____________ _________ _________ _________ _________ _________ _
Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your
favourite sites. Download it now
http://ca.toolbar. yahoo.com.

[Non-text portions of this message have been removed]

[Non-text portions of this message have been removed]





       __________________________________________________________________
The new Internet Explorer® 8 - Faster, safer, easier.  Optimized for Yahoo! 
Get it Now for Free! at http://downloads.yahoo.com/ca/internetexplorer/

[Non-text portions of this message have been removed]

Both numbers are indicators of viscosity at different temperatures. Take a
15W-50 oil. The first indicates how thick the oil would be at winter
temperatures, the oil behaving as if it had a viscosity of "15" and the second
number tells you how thick the oil would be at operating temperatures if it were
a "50" oil.

--- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@...> wrote:
>
> ok so what weight should i aim for? what is the main difference between *w-30
and *w-50? i know the first number is kinda the thickness... would some 10w-30
syntetic oil be engough?
>
> --- In DIYGasTurbines@yahoogroups.com, "John WALLIS \(Racketmotorman\)"
<racketmotorman@> wrote:
> >
> > Hi Jon
> >
> > Yep , I'll go along with that , I used 15W-50 semi synthetic in both bike
and kart , a little harder getting spooled up , and a little more of a wait to
get the lube warmed  so it can flow thru the finer passageways in the thrust
bearing  and provide the correct bearing support/dampering , but closer to the
correct lube for our turbos  than the very thin lubes  like 0-30  which if the
ambiant conditions dictate,  is reasonable to use , but for most of us in warmer
climates  "ordinary" weight lubes  are a better compromise .
> >
> > On a side note ..........I just received an overhaul kit for a TL92 ,  my
next engine ( 10/94 BB)  is going to have "brass bush" bearings and a standard
set of "bits" on the shaft to cut down the amount of work required ,
..............anyway , the thrust bearing is HUGE  compared to the one in my
bikes TV84  , the TV84 had 3 "pads" taking the thrust , each ~5mm wide by 10mm
long  for a total of ~150 sq mms , the TL92 has 6 "pads"  7mm X 10mm  for a
total of ~420 sq mms ,  on a square millimetres of thrust surface per square
inch of compressor rear wall (thats producing the thrust pressure loads), the
TL92 has just on TWICE the  ratio of the "fragile" TV84's thrust bearing , any
wonder I wrecked a few of them , the guys at the turbo overhaul shop  had told
me they had problems with the TV84 at high boost levels on their racing trucks ,
so even with 90psi oil pressure  that fragile thrust bearing was marginal .
> >
> > Cheers
> > John
> >
> >  .
> >   ----- Original Message -----
> >   From: j m
> >   To: DIYGasTurbines@yahoogroups.com
> >   Sent: Wednesday, November 11, 2009 5:14 AM
> >   Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running !!!
vid and pics
> >
> >
> >
> >   hi,i used to use 0w30 oil but now use 15w60 oil,really not that bad
spooling up at all. it is quite expensive through!!i use it because the place i
got my turbo "freshened" recommend it.the upside is the ability to maintain ol
pressure at reduced oil flows.
> >   worth giving a thicker oil a try it seems :-)
> >   regards jon
> >
> >   --- In DIYGasTurbines@yahoogroups.com, "lemegacool" <simonbeausoleil@>
wrote:
> >   >
> >   > ohhh i see... so my 125$ pump isn't doing the job... D'OH!!!! i think
i'll try with thicker oil... or this winter i could replace the shurflow pump
with a procon pump...
> >   >
> >   > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS \(Racketmotorman\)"
<racketmotorman@> wrote:
> >   > >
> >   > > Hi
> >   > >
> >   > > "THE" shurflo doesn't always produce the required flow once
temperatures and pressures come up , other members have experienced the same
problems with their ST/VT-50 turbs and shurflo , the pump is "marginal" on
bigger turbos .
> >   > >
> >   > > Cheers
> >   > > John
> >   > >
> >   > >
> >   > > ----- Original Message -----
> >   > > From: lemegacool
> >   > > To: DIYGasTurbines@yahoogroups.com
> >   > > Sent: Monday, November 09, 2009 2:16 PM
> >   > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY running
!!! vid and pics
> >   > >
> >   > >
> >   > >
> >   > > thanks for the answers!
> >   > >
> >   > > the oil pump i'm using is "THE" shurflow pump suitable for gt use... i
run it a 12v, i might just drain the oil and replace with 5w-30. dang what i'll
do with all that expensive mobil1 oil... hmmm maybe use it in my turbo shopping
kart LOL (not a gas turbine just a turboed honda 5.5 lol)
> >   > >
> >   > > yeah i kinda have some trouble sourcing a factory st-50 gasket...
> >   > >
> >   > > and no drain in the cc... but i have a propane pilot flame before i
juice up the diesel so basically what happened i think is that my pilot shutted
off and didn't lit the fuel... oh well
> >   > >
> >   > > --- In DIYGasTurbines@yahoogroups.com, Marshall Piper <marshall01@>
wrote:
> >   > > >
> >   > > >
> >   > > > Great vid's glad to see another fledgling running . About your
questions : I think 0w30 might be a little thin but am using it myself it makes
starting a little easier . Could you drive the pump a little faster ? is it
pulley driven, could put a smaller pulley on the pump . I am using a factory
gasket for the flange they are made to take the heat . I had noticed on your hot
start vid that it looked like the engine was just about to go to runaway speed
then you got it shut off good thing you had the leaf blower stuck in the intake
so it couldn't get that much air or it would of over speeded . Are you using a
drain valve on the C.C. at it's lowest point ? The reason i ask this is that if
you don't get instant ignition and have the fuel on it will run out of the flame
tube and pool inside the outer housing and then when you finally get it started
the blast of air from the comp will lift all that fuel into the flame tube and
you have an over speed situation and there isn't much you can doo about it
except run like hell .
> >   > > >
> >   > > > Marshall
> >   > > >
> >   > > >
> >   > > >
> >   > > > To: DIYGasTurbines@yahoogroups.com
> >   > > > From: simonbeausoleil@
> >   > > > Date: Mon, 9 Nov 2009 00:43:17 +0000
> >   > > > Subject: [DIYGasTurbines] Re: my st-50 gas turbine is FINALLY
running !!! vid and pics
> >   > > >
> >   > > >
> >   > > >
> >   > > >
> >   > > >
> >   > > > thanks for the comment! :)
> >   > > >
> >   > > > so... basically i have two main question...
> >   > > >
> >   > > > 1: is 0w-30 oil is too thin?
> >   > > >
> >   > > > 2: what gasket material should i use on the cc's flange?
> >   > > >
> >   > > > thanks!
> >   > > >
> >   > > > --- In DIYGasTurbines@yahoogroups.com, "John WALLIS
\(Racketmotorman\)" <racketmotorman@> wrote:
> >   > > > >
> >   > > > > Hi
> >   > > > >
> >   > > > > Congratulations :-))
> >   > > > >
> >   > > > > Just some minor teething problems to sort out
..................LOL....we've all had those .................good one
> >   > > > >
> >   > > > > Cheeers
> >   > > > > John
> >   > > > >
> >   > > > >
> >   > > > > ----- Original Message -----
> >   > > > > From: lemegacool
> >   > > > > To: DIYGasTurbines@yahoogroups.com
> >   > > > > Sent: Monday, November 09, 2009 7:44 AM
> >   > > > > Subject: [DIYGasTurbines] my st-50 gas turbine is FINALLY running
!!! vid and pics
> >   > > > >
> >   > > > >
> >   > > > >
> >   > > > > i finally got my big gas turbine to run! omg its such a feeling
being close to that thing when its spinning by itself! ok i'm now an addict lol
> >   > > > >
> >   > > > > http://www.youtube.com/watch?v=Nq8wk8EJBfk
> >   > > > >
> >   > > > > still some trouble happened...
> >   > > > >
> >   > > > > when the oil warmed up the pump wasnt able to push more than 40psi
with the bypass valve completely closed... i suspect 0W-30 oil is maybe too
thin? i would really like to keep the oil press at 50-55 psi
> >   > > > >
> >   > > > > second at the end of the vid the compressor pipe blew off in my
face LOL now i know what 25psi of boost in a 4" pipe feels like lol the thing is
my air inlet on the combustion chamber is 3.5" and my rubber coupler is 4" so i
wraped some duct tape around the air inlet to enlarge it... lol not a good idea
it blew righ of... going to make a steel enlarger tomorrow at work with the CNC
plasma
> >   > > > >
> >   > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> >   > > > >
> >   > > > > also the "hi temp" gasket maker started to melt and caused some
air pressure loss... what do you guys use for the turbine's flange gasket???
> >   > > > >
> >   > > > > and finally i did a hot start... even with all the precautions i
took
> >   > > > > DUDE its SCARY!!!
> >   > > > >
> >   > > > > http://www.youtube.com/watch?v=j1F0BxJ9Bf8
> >   > > > >
> >   > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> >   > > > >
> >   > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8147.jpg[/IMG]
> >   > > > >
> >   > > > >
[IMG]http://i426.photobucket.com/albums/pp345/lemegacool/IMG_8098.jpg[/IMG]
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> >   > > > __________________________________________________________
> >   > > > Ready. Set. Get a great deal on Windows 7. See fantastic deals on
Windows 7 now
> >   > > > http://go.microsoft.com/?linkid=9691818
> >   > > >
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