Quote:
Originally Posted by TJay74
Relates to the Z06 versus ZL1, though they are the same engine the airbox system is vastly different which impacts performance. Also I can promise you, the ECM calibration and TCM calibration will be different in many areas even with it being the same engine/transmission/computer between the two cars (other than the Z06 having 1 more gear on the manual).
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You can promise me? I can look right at the files themselves and directly compare them not to mention I have had more of them than I can count on the dyno over the years. The air box doesn't matter as the MAF table is calibrated for each vehicle's specific air box and tract and the commanded a/f ratio is exactly the same between the two vehicles. Since nothing mechanically is being changed with a TUNE ONLY it doesn't matter, what is so hard to grasp about this? The couple of degree timing changes in various cells result in timing being pulled no matter what on the stock tune with pump gas so throw that out the window, it's irrelevant. Of course the TCM calibration is completely different, want to guess why and why it doesn't matter either?