[DarkSunrise]

Originally Posted by solidONE

https://datazap.me/u/solidone/z85cd?log=0&data=1-10

That increase IAT from oil cooler messing with fuel trims, but man this thing stays strong in the heat now. NO power fade with heatsoak via butt dyno. E85 log from earlier yesterday.

That knock correction you're getting at roughly 3200-3600 RPM and 0.6 load -- have you figured out what that is? I've got similar knock at the same load ranges. Looks like it happens twice on your log, once was -0.7 degrees KC and the other was -2.8 degrees KC.

On my logs, here is one large KC event that caused IAM to drop to 0.88:

https://datazap.me/u/darksunrise/202...zoom=6097-6225

I cut about 4-5 degrees of timing from the base timing there and that helped, but still occasionally see knock there:

https://datazap.me/u/darksunrise/202...4&zoom=621-923

I doubt it's false knock since it happens at a specific load and RPM range, but seems odd to me that it would knock like that on E85.

Also are you using a catted header?