Experimental Turbine Porsche 928/boeing Car Jet Engine

[austin552]

http://cgi.ebay.com/ebaymotors/EXPERIMENTAL-TURBINE-PORSCHE-928-BOEING-CAR-JET-ENGINE_W0QQitemZ170217977642QQcmdZViewItem?hash=it em170217977642&

[Aerkuld]

That is awesome!

[Racerbvd]

I like it!!!

[Porsche-O-Phile]

That is pretty cool, although I'd have found a nicer way to style the hood. . . um. . . "scoop". . . thingy. Right now it just looks like a coffee can up there. Or maybe the exhaust stack from a diesel generator. Or a chimney. Or maybe a grain silo. Or a missile launch tube. Actually that last one WOULD be cool. Should paint it black with some faux rivets and a big # on the side of it.

Top speed only 125?

[rammstein]

[Porsche-O-Phile]

That's just a simple turbocharger "jet". Easily made but very limited on thrust. Lots of neato stuff you can do with 'em though. Check this:

Jet powered barstool:
http://www.turbinegroup.com/page2.html


Jet powered beer cooler:
http://www.asciimation.co.nz/beer/


Jet powered go-kart (well, you already found one):
http://www.youtube.com/watch?v=Ar4dtYBlZ8s


Jet powered bicycle:
http://www.youtube.com/watch?v=Ar4dtYBlZ8s


Possibly the coolest one - jet powered skydiver:
http://www.youtube.com/watch?v=2fLOgMQon7c&feature=related

[MT930]

I Want One!

[Scuba Steve]

I'm a little confused - if the exhaust comes out the big pipe in the top, how does it go? Is there a driveshaft out the back end or something?

[m21sniper]

Those jet boots are TOO cool.

[Aerkuld]

Originally Posted by Scuba Steve

I'm a little confused - if the exhaust comes out the big pipe in the top, how does it go? Is there a driveshaft out the back end or something?

Yes. A gas turbine provides it's drive from the spinning shaft of the turbine as opposed to a jet engine which uses the velocity of the exhaust gasses as thrust.

A turboprop aircraft uses a gas turbine. It sounds like a jet but it has a propeller driven via a gearbox off the turbine shaft.

The engine in that 928 would be driving through a reduction gearbox then most likely on to the automatic transmission.

What I don't knowis how you would control speed of the car. I wouldn't have thought that you throttle back the engine so I imagine that the gas turbine runs at a constant speed and there is some way to control how much 'drive' you put out into the transmission?

[Porsche-O-Phile]

I'd think it'd be way easier/safer with a manual transmission. Dunno how you go about integrating that with a fully automatic transmission unless a panic stop is done by throwing the throttle to idle and applying the brake (just like any other automatic car). Assumption is that the "idle" setting on the turbine reduces output shaft torque to the point that the clutches on the automatic transmission know what's going on and de-couple the engine from the rear wheels. Pretty big assumption.

[Gene-o]

Chrysler shaft turbine powered car from the 1960s:
http://www.allpar.com/mopar/turbine.html


As for the 928, no more water pump/timing belt changes! I bet a surplus shaft turbine might be cheaper than a rebuilt 928 engine!

[Scuba Steve]

Originally Posted by Aerkuld

Yes. A gas turbine provides it's drive from the spinning shaft of the turbine as opposed to a jet engine which uses the velocity of the exhaust gasses as thrust.

A turboprop aircraft uses a gas turbine. It sounds like a jet but it has a propeller driven via a gearbox off the turbine shaft.

The engine in that 928 would be driving through a reduction gearbox then most likely on to the automatic transmission.

What I don't knowis how you would control speed of the car. I wouldn't have thought that you throttle back the engine so I imagine that the gas turbine runs at a constant speed and there is some way to control how much 'drive' you put out into the transmission?

Thanks - that's sort of what I was thinking, but the big exhaust pipe out the hood was confusing. I haven't looked up the engine but I assume it's for the APU or something. Too bad he couldn't route the exhaust somewhere other than a big hole in the hood but I guess at ground level it might get dangerous. Maybe vent it out through several outlets would be an option, I don't know.

This is about the most work I've seen somebody do to get out of timing belt changes!

[onewhippedpuppy]

"Only one on my block"

[tcar]

Jay Leno's jet powered motorcycle it just exits by his leg.

Uses a turbine engine from a helicopter.

Has no idea how fast it will go.