Thoughts on 1.1bar on 91 CA gas

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01-17-2004, 04:24 PM

sKOOTeR WRX

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Thoughts on 1.1bar on 91 CA gas

I am wondering what you guys think about running 1.1bar or about 16 psi on 91 octane gas?

How safe is this?

I know the knock sensor will retard the timing if it senses detonation but what would be the point of running the higher boost if the ECU is consistently pulling the timing.

Just want a few more opinions

01-17-2004, 04:32 PM

KmanRuffian

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mod list would help....

01-17-2004, 04:57 PM

sKOOTeR WRX

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Here are my mods:
CAI
Turboback
Uppipe
AVCR

01-18-2004, 04:00 PM

sKOOTeR WRX

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anyone have any opinion??

01-18-2004, 04:57 PM

Kevin M

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You can run more boost, but you'll have to run much richer to keep the timing advanced. If timing has to fall back, you'll lose more power than you can get back by being richer.

01-18-2004, 07:09 PM

oldmansan

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I'd say you're

at as much boost as I'd run on the stock turbo. Actually, I run less on better octane. At around 16 psi, you're starting to run out of room on the stock turbo, it's starting to be inefficient (blowing hot air). I have a FMIC and still don't run 16 psi even with octane booster. But then again I can't afford to blow my motor.

San

01-19-2004, 02:00 PM

mexicanpizza

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Well for what it's worth, Cobb Stage 2 will only tune for 15.5 psi on the stock turbo with CA91.

It's not really worth it...that little turbo just blows hot air anyway.

01-24-2004, 03:53 PM

batmanalan

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you dont lose efficiency until 17 psi, big difference

01-25-2004, 11:38 AM

Tarmac02

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I'm running a little higher on the same octane. 18psi actually. But I had my EcuTek done and haven't had any kind of pinging problem. Car gets better gas mileage than before also.

01-26-2004, 08:08 PM

#10

pervert

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What Ban said.

I was running ~16.5 on 91 octane and the stock turbo. Things were fine, but I had adjusted the AFR accordingly. If you haven't already, you should think about a wideband unit.