I started at a 93.6mm and holy shit the car seemed slow. Granted the timing is way down on the motor currently but it was an absolute turd. I geared up to a 98.96 and it picked up the pace a little but was still over 1.2 seconds off the pace of my 13.5T car (which I run about an 88 rollout in) - which seems like a lot. Our track is not big - 1 60' long straight.