Quote:
Originally Posted by G-awesome
It's the same brand of fuel but just a new tank. There's no other brands other than Chevron in Canada that has 93/94 oct. I did notice the knock increased after the MAF re-scale...which was interesting. Is it because the new MAF scale will alter the air/fuel ratios which would affect the detonation and subsequently the knock corrections?
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That's pretty strange. Looking at your log, your current calibration is decently rich. That's if the O2 is scaled and working correctly. Your afr's go close to 12:1 then progressively richer toward redline (11.2:1) Where it does go slightly "lean" (13.5:1) at the bottom end (presumably because of exhaust scavenge due to cam timing) there is little to no knock correction. You can try to richen the spot up by tweaking the values in the load limit tables.
Here's a 3rd gear pull from your log (12.2:1~11.2:1 afr):
http://www.datazap.me/u/gawesome/201...70-12357-12417
Here's on of mine (12.7:1 ~ 12.2:1 w/no knock correction):
http://datazap.me/u/solidone/z6-kc1-...81-290-300-311
I don't think it's the AFR's that causing the knock corrections, but I could be wrong.