Quote:
Originally Posted by scubasteve
Wow, thanks for the input! That is some really good food for thought!
which company did your source your turbo from? I dont plan on tracking the car, it sounds like a really interesting idea.
What is the big difference with the STi heads? intake port size? cam size?
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The STi heads flow better, have better cams, variable valve timing, and better oil breathers. They're the real difference between the 2.5L STi motors and the 2.5L WRX motors. The EJ257 and EJ255 blocks are the same for all intents and purposes, with just minor differences in the pistons and base compression ratios (which can get confusing when mating them to different heads).