air fuel mix - Boost Forum

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air fuel mix
Friday, February 08, 2008 9:23 PM
Everytime i punch the gas and boost pressure builds up air fuel changes everytime . Im just going to add alittle more fuel in. It held on 12.7 for about 4 secs and then went done to 11.5. I turned my fmu screw a tad to help that. THIS ONLY HAPPENED 1 TIME! my question is how bad is 12.7 if that were to ever happen agian. i try to keep it under 12. But i know i ras runnin mad lean with my first engine with just the fmu installed on 8 psi. so 12.7 is bad BUT HOW BAD?

Re: air fuel mix
Friday, February 08, 2008 9:44 PM
A knock gauge will tell you how bad.


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"Youth in Asia"...I don't see anything wrong with that.
Re: air fuel mix
Friday, February 08, 2008 10:04 PM
12.7 isn't bad, technically if I could get my car to run without knock I'd love to run it at 14:1.





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