Swapped to 528 mech cam slowed down

It is more combo related than wheel spin related. Loosing .2 @ 60' wouldn't lower your trap speed by 5 - 6mph, possibly 1 or 2 but not as much as he has lost.

When I loose a tenth or two in 60' I have not really seen any difference in mph. I had an intermitten stumble off the line for awhile and even though I lost 2 or three tenths in ET I ran the same basic mph because my HP was the same. Granted you are lessening the distance to achieve the same speed but not by enough to lower speed 5 - 6 mph, not in this case. She's (the car) is nosing over.

Joe, what was the change in mph at the 1/8th?


Chuck