Quote:
Originally Posted by Speedy1975
3rd gear should be pretty decent for testing, but 4th is 1:1 in the M6 I believe. If you can do so SAFELY, I'd be curious what a 4th gear pull looks like. You can literally get in to 4th, turn on your data logger ease the RPMs up to about 2500 - 3000 and then roll to the floor and take it to the rev limiter. Then stop your data logger recording. This will make the log small and easy to review.
If you look in the graph above, I was thinking that last area where you go WOT was 4th, but the timing was a bit lower than the other gears. Probably IAT related as usually when IATs rise the tuner drops the timing. That last part the timing was 7° in the graph above. The IAT was 71C (160F) so you may pick up some performance cooling that a bit with a larger heat exchanger or something if interested.
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I don't have anywhere safe that I can do a full 4th gear pull. No way no how.
HOWEVER, I'm dyno'ing the car late afternoon October 8th. I will log it then during one of the first 4th gear pulls. That should be ideal. Today I got the potential false knock source fixed, so that's good. And one thing I have noticed over the last few days is that the car seems to be getting faster. Could it be taking the ECM up to two weeks to fully adapt?
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