The tune in my car hasn't been changed drastically in several years. However, I just removed a FAST 78MM intake manifold and ported throttle body and needed to touch up partial throttle fueling. In doing so, I disabled the MAF (fail frequency set to 0), COT, DFCO, LTFTs, and PE. In the past, I didn't usually disable PE. I was just mindful of my RPM and TPS.
Tonight I was gathering some log data doing fairly steady/gradual runs in each gear up to 4k (sometimes up to 4.5k). I noticed on a couple of occasions that the car fell on its face over 4k rpms in 4th. During these times, I was seeing KR of around 15*. Rarely have I gotten any knock retard in the 5-6 years I've been tuning on this car. I'm inclined to question whether disabling PE caused this problem to surface. My timing adjustments are pretty modest from what I've seen.
Anybody have time to take a look?
jqd091613c_knock.hpl
jqd091613-DFCO-PE-MAFc.hpt
The car as a 228/232 .585/.575 112 LSA camshaft and supporting mods (valve springs, exhaust, cai, etc.)