A few things, what brand of rear tires and how many passes on them ?
Some good years are hell in the burnout box, old tires will do this also.
Roll through the burnout box, back up and go through it again, always gets enough water on the tires. Some places dont put nearly enough water. Burnout chip should be fine. I had one set of new goodyears, I actually had to stop and footbrake the car up to around 2500rpms then let it loose.