Check Out This Crazy Jap Motor....

[Antisocial]

Have a look at this wierdness. Follow the link for the full story.

  Quote

I was planning on using a Toyota 3T-GTE turbo 1800cc engine in it for some time in the car and getting a lot more power from it, but something came up that I couldn't pass by ...

I am lucky enough to have a friend that is a Japanese parts & engine importer, and one day he brought back a rather odd engine, one that I've never seen before or since. It's a Toyota 1G-GZTE, which means it's a 2 litre, twin cam, four valves-per-cylinder, 6 cylinder, supercharged AND turbocharged 450hp monster! Take a look at a couple of pictures of it -  This is looking at it from the front, and on the right hand side you can see where the turbo bolts on to the exhaust manifold, and the supercharger on LHS the supercharger. You can also see part of the complex inlet plumbing ...

 

This shows a good view of the inlet pipes. All of the darn things!  It took me a while to figure out how it all works, but I think I've got it under control.   You also get a better view of the supercharger, and also the two inlet manifolds - The upper one and the lower one.

(apologies for the scratch in the picture) 

The engine is a rather clever device - when driving slowly (Yes, I DO believe that it's possible!) the turbo is not spinning fast enough to make any boost, and also the supercharger isn't spinning. This is because it has an electronic clutch on the front of the blower, much like an air-conditioner, and so can be turned on & off as needed. This means that while driving around on the road the car is quite docile.

Ok, put your foot down a little. The supercharger cuts in, making up to about 12psi of boost, thus giving a fair kick in the tail. And also helping spin up the turbo faster...

So the turbo (Which is a LOT bigger than what you'd normally put on a 2 litre engine) spins up quicker and I expect it to be making more boost than the blower at around 4,000rpms or so.

Once the turbo is making more boost than the blower, the blower turns off and thus loses all the mechanical drag required to spin it. The turbo then runs up to 20-something psi. I haven't worked out just how much yet, but I reckon it'll be about 25psi boost.

http://www.billzilla.org/rallycar.htm

[minstral]

What the f*ck kind a car did this come out of. That is insane

[xr6 typhoon]

I had a volvo FL6 that worked on the same principal. the supercharger erases turbo lag until the turbo comes up to optimum boost

[eatV8]

Mercedes also has a simular concept now on a diesel engine. Although it is not using a supercharger + turbo. They are using simply two small turbos which give virtually no lag while one large huffer for top end is spooling up for the big hit.

Imagine having that Toyota engine sitting under the bonnet of an old Corolla... Would suprise ALOT of people off the lights with it

[WBT56]

Looks the same system as used in VOLVO PENTA marine diesels for years.

[Guest]

That donk looks like dry dog spew on wet grass.

[Benny]

  minstral said:

What the f*ck kind a car did this come out of. That is insane

<{POST_SNAPBACK}>

It's looks like an obviously modified version of the 1G GTE that came out of the very early Supra's. I wouldn't say that they were a real power house.

[TUFGSR]

how bout this one

[Antisocial]

Nice....

Got any spec's?

[mattyc]

  EVLGSR said:

how bout this one

<{POST_SNAPBACK}>

can anyone say laaag.

I think its rediculous, but fun to watch. With a cleaver design, you dont need supercharger AND turbos.