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User 1 is AFM voltage. I am not running a PB. I originally was running FQS at position 0 but moved to Position 1 and it is a little rich but safe. Running E85 and the larger injectors exacerbate the variance in the AFM (thus the M-Tune) and I am running on the safe side. The move to FQS #1 was the extent of my tuning. Absolutely no knock at 18 psi.
What does the AFM max out at, voltage-wise? Considering that line looks completely and perfectly flat, it seems like you've maxed it out, no?
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Joined: May 2006
Posts: 5,252
Likes: 6
From: Denver
Yep, we typically see a good increase across the board by removing the AFM.
Here is a dyno of the A-Tune vs M-Tune. No tuning changes (besides the MAF code), and these pulls were done within minutes of eachother.
Out of curiosity....is this removing the stock airbox and AFM or is this change from a cone filter fed AFM? Just trying to see how many variables are in play.....
Ya that's a very impressive dyno, even with the A tune and AFM on the car. That's quite a considerable difference from there switching to the MAF as well.
Great Dyno! I know since I got my C-Tune Maf setup the car is never felt so good. I have a k27 7200 cold side and I'm almost tempted to just leave the k26/6 in there....almost