Need help with knock (logs available)

SG4247

My car would knock at the exact same rpm, in the same gear everytime, no matter what fuel was in it (even E100), or timing used. All the logs showed the same knock at the same point. This is engine noise picked up by the knock transducers.

Based on this data, I was convinced it was ghost knock. I had the tuner raise the threshold on knock detection and been happy ever since.

I have had the engine light flash (mil gauge highjack knock indicator) a couple times on 89 cheap gas when pulling away from a stoplight with light throttle. If I see that, I pull timing on the oil temp gauge with the cruise toggle, and go add some 93 oct.

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NA on E85 - 12.402 @ 112 mph
100 shot E85 - 11.589 @ 117 mph
JWT C2 cams rev Base Circle & Titan Valves