2013 GT procharger false knock or real knock

[Silver13gt]

On data logs I am showing +3.65 knock at 4k rpm WOT then it goes back down to normal. Could this be bad fuel or would this be something making false knock? It’s only a spike at 4k rpm everytime i go WOT.

 

[diambo4life]

What fuel? A good test would be to have real good fuel in it like E85 or race gas and see whether you get the same knock at the same spot. If you do, it's phantom, probably the knock sensors picking up some noise (exhaust hitting somewhere etc) and registering as knock. I mean the knock sensor is a microphone.