06-28-2009, 06:36 PM
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CC Member
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Join Date: Nov 2007
Cobra Make, Engine: KMP532, KC427FE, TWM
Posts: 310
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Not Ranked
I have my A/F between 12.8 and 13.9. (WOT/Idle)
When I did logging runs I tried to do smooth long passes at a given rpm. The quick on and off throttle periods make it difficult to see where you need to be. I don't think that the 02 sensor tracks accurately with rapid changes. Once I got the A/F correction within reasonable limits, and no obvious holes, I started adding fuel to the accelerator functions until I eliminated the bog.
I probably spent a lot more time than I needed too. (Than if I would have had access to a dyno.) On a dyno I could have peaked the power through all the rpm ranges. Right now I'm guessing on the A/F, but have it close enough to scare the HE!! out of me... 
Good luck on your new direction.
www.kobrabytes.com (Pictures of my setup.)
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