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Here is a log that was posted here that illustrates how much timing moves around by gear. Almost a 10 degree drop in parts by RPM. Most telling is that this is completely different than what we see in same gear dyno pulls. Mind you this is also with 3 degrees of offset in place.
This demonstrates the ECU's reliance on knock sensor feedback, stock or modified, with or without CPS offsetting in place.
Mike
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