Recipie for Horsepower

[mcyr5912]

Ok, TN I have been searching the net and am in need of a formula to achieve 400 hp for my 91 Alltrac. I bought it with a blown head gasket. I have the engine completely torn down. I figure that there is no time like the present to build an Engine and Trans combo capable of 400hp at the crank. I figure that this will be a really fun car with that kind of Power to weight ratio.

So I am looking for the right combination of crank, rods, pistons, Turbo, Injectors and Fuel management. All for $200... Just kidding. No Realistically the budget is in the neighborhood of $3000.

Thanks for any help.....It is greatly appreciated.

[RobMilkshakes]

alltrac.net or mr2oc are probably your best bets for specific info

[MR2Jedi]

I believe the AllTrac comes with the 3sgte?
More air + fuel =more power.
I guess 400hp@ the crank would equate to around 340-350 @ the wheels.(just guessing)
The 3sgte, with it's iron block and it's stock internals are good to 400rwhp.
Of course, forged internals are always better.
Wiseco, JEPistons,Eagle all make great products-$700.00-$800.00

You'll need a bigger turbo. A GT28, GT30 or TD06 to hit those numbers..$$1,100.00
Upgraded IC , piping, couiplers andT-clamps-$400.00-$800.00
If you're gonna rev past Redline, or use higher lift cams,-$600.00-$700.00
you will need to upgrade the valvetrain.
Adjustable Cam gears-$200.00
For my head rebuild/upgrade, I went with the shimless lifters from the MR2Spyder 1ZZ engine.-$192.00
Brian Crower springs,titanium retainers,$250.00
Ferrea SS Valves-$225.00
550cc (or bigger) injectors-$400.00( certain yr. Supra injectors are plug and play using stock fuel rail)
Higher capacity fuel pump-Walbro 255lph is pretty popular-$100.00

Downpipe-$275.00
Upgrade the exhaust-$600.00-$700.00
Boost controller of some type
Anything beyond 280rwhp is gonna require some type of engine management. Like MegaSquirt, Hydra Nemesis,etc. A tuned ROM might get you there.
Upgraded clutch. The stock 3sgte clutch is only good to 280hp=$400.00-$500.00

[mcyr5912]

Great information guys..... This is a Great starting point. Time to get the shopping list together.

Next question. Looking at a staggered set of rims and tires. Any one have the right set up with regards to offset front vs rear. Looking at 17" rims.

[RobMilkshakes]

it all depends on width. You can go a slightly lower offset than some celicas can (myself included). I have a narrowbody, while the GTS and alltrac are widebody. probably best bet is around +30 offset maybe a little less for the rear.

[MR2Jedi]

ooohh. Not easy offsets to find.

[jlspec]

Rebuild the trans while its out and replace the Syncos with updated ones found in the 92-93 alltrac. Or you could try finding a 94+ GT-Four trans. It's not that hard to push those numbers on the 3S-GTE it's all about money and time. If your doing most of the work yourself then you might want to increase your budget just a tad bit, unless your looking at getting used parts. I recommend getting it new to help eliminate any issues your might have after the build.