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fuel type
Posted: Tue Oct 04, 2005 12:10 am
by andys2
I'm presently running the cheap stuff (87 low grade) and I can get 12.5 PSI with no knock. > 12.5PSI = knock knock. Any guesses as to what I can boost on 94?
Come on - I'm taking a poll
Posted: Tue Oct 04, 2005 1:40 am
by 91White-T
1.5bar + if you have an IC, but the turbo efficiency is not so good above 1bar or so.
Posted: Tue Oct 04, 2005 5:37 am
by Richard
call me inept but what is the conversion rate for psi? at least what 1 bar equals. Much thanks.
Posted: Tue Oct 04, 2005 5:45 am
by dzx
I run 18psi with 91 octane and no knock depending on my tune that day....where's the poll?
Posted: Tue Oct 04, 2005 7:11 am
by andys2
Tonight I drove up a mountain road. Mostly 4th and 5th at 15PSI. Pretty cold out (5C), 60MPH+, 10min+ no problems. No knock.
Also, I have the MAP pressure line completely disconnected from the sensor. No fuel cut. No MAP info to the ECU. Seems to work ok. I am going on the fact that the ECU uses only O2 sensor and MAF info to set the fuel. Does anyone know if this is true - cause if it ain't I'm being a bit sketchy here.......
Posted: Tue Oct 04, 2005 1:32 pm
by vrg3
Posted: Tue Oct 04, 2005 3:25 pm
by BAC5.2
I'm surprised your car ISN'T cutting fuel without the map signal.
Posted: Tue Oct 04, 2005 4:55 pm
by andys2
i can only sense either or. With just MAP I get unpredectible CELS and safe mode operation. Dangerous. With just atmospheric there seems to be no caveats. I have a Blitz external boost controller.
These cars are pretty cool - well mine's an impreza, but still.
Posted: Wed Oct 05, 2005 4:46 am
by Richard
thanks v!