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Old 08-17-2015, 12:36 PM   #8
steve99
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Quote:
Originally Posted by nocturne1 View Post
Is this even worthwhile to do on a Stage 1 tune?
Yes as if the ECU uses coarse correction ie reduces IAM to less than 1 in order to reduce knock it effectivly reduces ignition timing (hence power) over the entire rpm range even though the problem area may only be in a small rpm band in low rpm area.

the ECU is also quite agressive in removing timing and will often remove double what is needed to supress knock.

You can get a better result, smoother running and more power by tailoring the ignition advance to your fuel rarther than letting the ecu do it.
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