Knock during shift from 3-4 at WOT

[eisaalali]

Good day

I have silverado L83 with whipple supercharger and in the data log it shows knock during the shift from 3-4 ar WOT

What is the reason of that ?

Thanks

[Jonblarc7]

You need to at least post a log and probably a tune. It could be a million things.

[Ttmerc]

Log and tune required. Just 3-4 shift? Is it truly knock? Compare commanded timing to actual. If the "knock" is say 8 degrees but timing is what it should it could be Torque management. Log and tune will help you get some help.