Originally Posted by tom2112
I am by no means an expert... so take this with a grain of salt: your AFR numbers are all messed up. Is that before or after the tune? If it's after, I would ask for a retune.
You're lean from about 62 mph through 90 mph - and very very lean (dangerous?) at 80 mph.
For comparison:
My last dyno run (July 9th, 2011 at Carlisle), my AFR was between 12.17 and 12.85 for the whole run. On another run, he didn't apply full power as soon, and I had high AFR numbers near the beginning (14.02), but they dropped as soon as he put the hammer down. But they didn't drop below 12.00, and hovered in the middle 12's. 12.2 is ideal, but you want a little wiggle room, so mid 12's is good. 11's are bad and 10's are even worse.
have to disagree with you here tom. i run 11.8 at wot in 4th gear dyno pull. its always better to run a tad fat at wot than lean. you might get a few more ponies but at a higher risk. theres less air moving thru the intakes at a dyno than at speed in real time driving. mid 12's are fine for spirited driving but if your running wot at the track for instance mid 12's are to lean for a forced induction engine. your sweet spot will be in the 11's with 10 being too rich