Quote:
Originally Posted by _F-R-S_
still think 8 psi is to much unless your rebuilding the bottom end.
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what experience makes you say that?
on 93 octane I believe it is a viable boost pressure considering the other kits that are pushing a lot more. Heck, my sx4 has a 10 psi turbo kit that guys have been running for over 4 years with no issues on the engine part. being a true econobox it says a lot, especially with 10.5:1 comp ratio.
now, the brz has 12.5:1, BUT, it has direct injection also, which negates some of that compression ratio since you reduce the chance of detonation. and also seeing as subaru designed this engine with the next gen impreza sti turbo set-up in mind, I'm sure it can take 8 psi no problem properly tuned. nice kit guys, any plans on a 91 tune also for ppl that don't have access to 93 or 94?