New Project Supra

[pwpanas]

Originally Posted by Twin Turbo '95

im glad you replayed. specifically you. because I've read your post and your pretty clued up about Supra's. If there is no doubt that the internals can handle 600-750hp then i wont change the pistons ect. but i would let me sleep much more sound at night. lol. so the gearbox can handle it without a problem. damn i love Toyota for this! lol! what is 600-750hp at the wheels going to be at the crank? im thinking about replacing the clutch as wel. 100hp clutch.. the parts aren't pricey here. the rods cost me R4500. pistons are R7000 clutch R10 500 and they have to make a custom flywheel. R3500. around here for that strong internals it ain't much money.

1 bar is 14psi and 2 is 28psi. so you think 2 bar is a bit high??

i basically want a car that will haul ass when i want it to. lag isn't too big of a deal.

at 1 bar im using 95octane. 2 bar is only for race days then i use 102 octane.

do you think 600whp will be enough to get to 10 seconds. of not. what will.

Honestly you can sleep completely soundly at night, and with more $$$ under your pillow too (instead of in the piston & rod manufacturers and machine shop's hands)! The 2jz-gte is a rock up to 1000hp. The 'record' is actually over 1000rwhp on a bone stock block. 850rwhp (6spd) is a walk in the park (again, assuming good tuning and enough octane to match the boost level). Even if the rebuild parts "aint much money", there are very few machine shops with the expertise to properly rebuild a 1000rwhp+ 3L engine. If your $ won't go for parts, they'll either go to a good machine shop, or they'll go for a re-rebuild when the first one doesn't work out. Honestly it's best not to fix what isn't broken - a healthy bone-stock 2jz-gte does not need any building at your rwhp level.

Yep you'll need a different clutch for 750rwhp. Through a 6spd, 750rwhp = 880hp at the crank.

2 bar is not too high, assuming sufficient fuel flow, proper tuning, and a sufficient amount of octane. 102 octane is typically not enough for 2 bar, with complete reliability/safety. Spend those rebuild $ here - on some 116 octane+ race fuel. Detonation will quickly kill even the most expensive internals, but good race fuel can completely prevent detonation.

With slicks, 600rwhp or so can get you into the high 10s.