Quote:
Originally Posted by jamesm
i think you mean shoot for 12.5:1 then add 5-10%.. right? i've never done it that way.. interesting idea. so you dial the whole maf (or ve map) in @ 12.5 and then just go through and add the correction globally? i might have to try that next time  . |
Yeah that's it. Disclaimer here is that don't do this with overly advanced timing and don't do it in tall gears. A run in 2nd or maybe 3rd under watchful eyes should be safe for a time or two, it is a short run in those gears. Then watch the learning trims to make sure that it didn't change stuff on you.
Quote:
Originally Posted by troek
so on the NA FA20 you would see no benefit of the AFR being closer to 13?
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Every car is a little different, but generally more often than not we make more power at 12.5 than 13 NA. That varies with RPM though.