I dunno, but put it this way, i ran a 17.5sec 1/4mile as i lost the 1st 3 gears to horrendous wheelspin and got a 110mph terminal.

Later on same day got a 13.9 with far less (but still loads) of wheelspin and still got 110mph

Infact i had about 6 runs that day and were all within about 3mph of each other.