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View Full Version : 91 Octane + Stock S14 SR20DET?


KoukiMnster
04-10-2012, 01:56 AM
hi guys about to get my S14 SR up and running and have a few questions...

So i understand 7psi is stock w/o the solenoid-and 11psi is stock w/ the solenoid...

but in japan they use a higher octane than california...

I was wondering what a safe boost level will be on 91. I am on the stock ecu w/o any sort of piggyback or tune. Current mods are:
Exhaust, dp, walboro 255, intake, fmic. No headwork, etc. I'm reading that the injectors/head tend to go around 12psi?

With my current mods, would I even need a boost controller or will the fmic raise my psi a bit.

Please help me out, thx!

zurud
04-10-2012, 04:31 AM
To increase pressure above wastegate you need the boost controller. Fmic will not increase your pressure. The wastegate dictate your pressure. sr has knock sensor to reduce power when encountering detonation.

!Zar!
04-10-2012, 10:44 AM
12psi is fine.