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Originally Posted by MikeSTI
MikeK - I cant believe even you came to the table with somthing..........
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Actually Mike I do agree with you, I think the 4G63 engine is way better than the EJ205/07/57. And I agree that if they had come with forged internals, then detuned for emissions, you could push the car further with aftermarket parts. But no car manufacturer is going to spend extra money that they don't have to.
A lot of guys on nasioc are having luck pushing the EJ257 to 400+whp just adding forged pistons. Most of the 400 whp STis that have the stock pistons seem to be breaking after a while. Also, 91 craptane is a serious limitation, I am not convinced that a
safe 400whp is possible at all on a small engine on 91.
I was talking with Nate last friday, and I asked him how far you can push one of those built blocks (you know, with the forged crankshaft/rods/pistons etc) ... I asked how much you could safely boost and his exact words were "you can boost until the cows come home". I am not sure what that is in psi, but I am guessing it is pretty high. He also said that a built engine in an STi could easily make 450 - 500 hp at the wheels :shock:
I guess like most problems in life, it can be solved by throwing vast sums of money at it
