Quote:
Originally Posted by Daves1SS
Upon further analysis, most of my KR was in the high/WOT load, lower rpm range (2500-3000 rpms). In the upper rpms there was no KR.
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This is pretty typical in a PD supercharged setup. You're getting all that boost at a lower RPM where it's more prone to detonate prematurely.
A custom tune would pull a bit of timing in that area to prevent it and ramp up the timing with RPM.
Can you tell from the DL what the timing advance is where the knock occurs?