Guess what I'm building

Air cannon?

"IT'S A CANNON!!@@#$#%#@!"
:lol:

No, it's not... Well, not quite... It does blow a lot of air.

is it one of those old school AC things that sits on the window and sucks in air, then somehow cools it then puts it into the cabin?

A swamp cooler? Nah.

supercharger

You're on the right track, but not quite!

pro-charger?

a bomb? with a spark plug ignitor lol

Pneumatic reservoir?

Turbine engine

DING DING DING

The compressor outlet gave it away, didn't it


Seems that nobody wants my old T25, so I'm gonna play around with this.

open it up . whats your flame tube look like? looks like the combustion chamber is to small.

Hows that gonna work?

like this http://www.youtube.com/watch?v=zyZRQ1btI6A

It's 3" exhaust tube with a 2" flame tube, but I still need to add the compressor inlet on the combustion chamber and drill the flame tube.
I did a quick test with some mapp gas and compressed air, and it gets a nice flame... like a big blow torch, so I think it'll work. It's a small turbo anyway, don't need to make it too big.

I am pretty excited to see this thing work. be sure to get good video when you get it going. I have always wanted to build one and have done lots of research in the past but just never got around to doing it.

Oh yeah, of course!
It's something that I've always wanted to do too, but I've never had a good turbo just laying around. :lol:

Wait this isnt going on the car is it and also is it the t25g damn i was going to see about picking it up from you since i need a turbo for my black hatch...

Nah, it wouldn't produce any useable power, it's just for fun.

I guess if you really want the turbo, I only have like $5 in the combustion chamber (for the 3" tube), so it's not a big loss for me.
Otherwise I wasn't really planing on destroying the turbo...

Just came into this thread... Matt you are awesome. As soonas I saw the turbo and the spark plug I wondered but didn't quite guess correctly. This would be sloop much better with a big Banks or T4 and a larger tube. Then you might see some use!

Yeah, there's a nice holset from a semi sitting at work that I'm temped to ask about, but I'm sure they won't give it up. :lol:

Some more pics:
Head, air chamber, and flame tube (still needs to be drilled)


And what I'm gonna use to start the engine, also for testing the flame tube.

It's a vacuum cleaner motor... Almost put out the same CFM as the T25... lolz
I would use a leaf blower like everyone else, but I don't actually own one.

I bet I could still get SOME use out of this though, but not in terms of thrust... I would have to make up another turbine to spin a shaft to a gear box, etc etc.
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Looks super nifty. Turbine stuff is cool.

Having trouble starting it... But it's hard working on it up on the bench, so tomorrow I'll try again on the floor. :lol:
I think I just need more fuel flow into the chamber before the spark plug will ignite it, I'll find out tomorrow.

You need fuel flow to match your airflow, and ignition to match both. Turbofan ignition blowout is a problem against which countless dollars and man-hours have been spent in engineering.

ya i'm subscribing

Well, ignition isn't a problem, as I'm using an old HID box and it's actually melting the spark plug electrode...
On the bench I was trying to not set the bench on fire or blow an eyebrow off, so I'll try again on the floor tomorrow. I'm sure it'll go a little easier.

You might consider mounting it to a test rig.

Probably, I haven't decided how I want it pointing yet... Right now the center section is clocked so the combustor is up, but I think I'll probably put it off to the side. I donno.
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