knock at start

[Super6]

I am getting knock when i build boost at the line when the car leaves, the car is spinng when it knocks. It goes to the red on my caspers knock gauge. if i build no boost i get no knock when leaving the line but the car leaves with almost no spinnig. i am sure it is false but i have checked everything,motor mounts,trans mount,downpipe, etc etc...what else can i check or is it the tires setting it off?? i am getting some slicks soon so maybe this will clear it up ................................thanks Bob

 

[turbosam6]

Its probably wheelspin knock, try a search on the subject.