[Fraxum]

Nice to see you back. Great post! Your times are just a little better than my M6 SS full boltons with NT555R DRs a cross between a street tire and a drag radial. Our mph is about the same. My 60's are just a little better than yours dipping into the 1.8s.

Have you weighed your ZL1? My M6 2SS weighs around 3675 and my crank is around 500-510, yours is 650. Your car weighs around 200 pounds more than mine. Those numbers do not add up thinking about the weight difference. The ZL1 should be faster. I pick up 1-2 MPH more on the second 1/2 of the track where bogging and 60's make no difference. You 25, me 26-27. With a taller back tire my gearing is a little higher than yours.

The M6 SS seemingly has the off the line bog issue. But I think something is holding the ZL1 M6 back even more. I have been thinking of moving up to the ZL1. I hope this can get sorted out. Both our cars are over-geared for sure.

I do think a 4.10 gear would help us both big time. It might be coming but I do not know if the gear will fit us both. I will check if they build it.