I'm not sure how much an STi can handle before internal mods are needed but you are wrong with the 75 hp figure.GAK said:I would like to run around 375 hp to my wheels on my 04 STi. A 75 hp gain is not that much but......ive heard about broken tranny's, smoked clutches, mounts etc.....With that said, what mods would I need to gain 75 hp to the wheels? Thanks
Stronger, maybe. Better, no. Higher static compression means you can't run as much boost safely. Variable valve timing is the source of debate. Seems to help bottom end, but not as much as eliminating the tumble valves in a regular WRX. Basically, in my opinion, the STi is the car to buy if you intend to keep it stock or keep mods to a minimum. The WRX is the one to buy if you want to go crazy.Sphinx1 said:I was under the impression that 400-450 is easily capable in the STi. And there is no comparison between the standard Rex & STi. EVERYTHING in the STi is better & stronger, inside & out. I have a 2003 & I am running 325-350 at the crank. Again, you have stronger internals, .5 more liters & just an all around better car for tuning.
Just do as much research as possible. Call shops that tune these cars & will get a general idea of what you can & can't do. I call shops all over the country all the time. Have fun & good luck.
I find it hard to believe that you are running 322 WHP with stock turbo and stock cat back. you're either off on your numbers, the dyno was way off, or your car is on the way to destruction make your time.god02 said:I am at 322 whp on race fuel on my STi with stock turbo and stock cat back. I am installing a GT35R right now and although the turbo can lay down 500 whp I think I'll probably limit boost to something more block safe. I'd say 425-450 whp should be fine.
i will refrain from sarcasm this time. yes, i have heard of godspeed performance. what i'm saying is that it has been my experience that the "packages" that are offered don't offer that kind of performance at regular premium pump gas levels. getting that performance from race gas, however, i admit that it is possible. again, i didn't see the fact that you said you get that on race gas.fc735 said:you ever heard of godspeed performance?
god02 said:I am at 322 whp on race fuel on my STi
EDIT: race fuel - didn't see that at first. That'll make a diference. Sorry.
again, i didn't see the fact that you said you get that on race gas.
So what would I need to do to make my wrx handle more powettI would like to run around 375 hp to my wheels on my 04 STi. A 75 hp gain is not that much but......ive heard about broken tranny's, smoked clutches, mounts etc.....With that said, what mods would I need to gain 75 hp to the wheels? Thanks