3/16" tubing should be fine. You want your expansion chamber after any valves. Co2 is a liquid in the tank, and has a vapor head pressure like propane. At a...
hi jim i saw it tonight as well,looking forward to next week,moto gp and scrapheap challange ,i think the second "kart" on rails may be using a water...
Hi, couldn't anyone buy it and copy it for the group? Kind regards Oliver ... say I'm a noob at this and i have so much to learn so much and i was wondering...
Hi, I new member in the group, I have 2 turbo charger, cummins KTA 38 and Cummins NT 855. I want to built gas turbin, please help me about combustion chamber,...
Hello there Robert, I really admire all of the members of this group, and I really don't want to rain on your development parade, but let me propose this...
i wont use the aluminum this go round, but ill have some steel here pretty soon, and if i get low enough temps from it, i might try experimenting with the...
JD - To answer yor questions: "Have you ever heard of anyone in the aviation community using an Aluminum Combustion Chamber?" No. Not in 40 years of designing...
Robert - Please do not use aluminum anywhere on the combustor no matter what temperature you measure! The reason is that the compressor discharge temperature...
Hi Mike Thanks for your reply, safety is always #1 on my list, so now im just waiting on the steel, but i do want you to read what John Wallis replied to my...
Hi Oliver Theres the little matter of copyright :-(( What is it that you need to know about building an engine ?? The Kamps book "Model Jet Engines" I gave...
Hi Robert LOL....you'll note I said " parts of the outer can ", castings generally, comp diffuser/combustor can "lid" , and then on lowish compression ( by...
... v What is the max safe ITT Temp v David. ... turbine temp ( ITT ) if there hasn't been a large pressure drop ( temp drop) across the turbine wheel . ... ...
Hi David As your engine develops more pressure from the comp , there has to be a greater pressure drop and temperature drop across its turbine wheel , so even...
Thanks John, i was pretty sure that was what you meant, but like i said I'm not going to risk it. "John WALLIS (Racketmotorman)" <racketmotorman@...>...
Hi John, I'm not so sure if the seller wants to know something about copyright... Thanks for your answer, at the moment I have no questions, but this could...
Hi Robert Yep , alloy best left for low temp use , mild steel is much cheaper and easier to use for combustor cans, but care still needs to be taken to have...
Hi Grant, I responded to you before, but just sent you another email out in regards to the tachs. I don't know why you didn't receive the previous one, but...
Can I make go a motorcycle with lawnmover engine and the turbofan engines fan ? I mean , I want to have a fan and a lawn mover engine and make motorcycle go ! ...
... Today i added 7 holes to the propane injector, It had 3 to start with now there is two rows of 5 holes. This brought the ITT temp down to 1100 F from 3 psi...
John, i couldn't agree with you more. I definetly dont want this thing to "grenade" on me or anyone else!! And to anyone else who reads this message, PLEASE...
Hi David The "pop" signifies a "good ?" explosive mix , so air and fuel are getting together nicely , excellent :-)) ..... LOL........You should hear a big...
Hi Robert Always "Safety First" ;-)) Cheers John ... From: Robert Avary To: DIYGasTurbines@yahoogroups.com Sent: Tuesday, June 03, 2008 12:20 PM Subject: Re:...
Hi Mustafa Probably yes ,....... but you'd go faster if you simply hooked the lawn mower engine directly up to the rear wheel with a chain drive , an cutout...
... My combustor can is 6mm steel tubing so i think its OK. But my next problem is i think i will now need some kind of clutch, this thing is running great! At...
Hi David LOL....yep, 6mm should be thick enough :-)) Have you thought of putting a disc brake on your output shafting , a "handbrake" that can be locked on...
... I have a disc brake on the out put shaft that i use as a brake for stopping the kart but i have not tried a start up with it locked. I will try that...
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