My 'tamer customers are trending to less 1st gear. Before the 'tamer, wheelspeed launches with a 3.30 1st gear was the sweet spot for the sealed engine guys (10.1@130 3100lbs). A few years later with basically the same power and the 'tamer controlling the clutch hit, dead hook launches with a 2.93 1st gear is in favor. The drops between 1/2 in both gearsets is about the same, but on the 2/3 and 3/4 with the 2.93 set they pick up about 300rpm. Ideal for the class looks to be around 2.75, but 2.93 is the closest rules allow for the G101a.
Here's a graph of what those dead hook 'tamer launches look like with the 2.93. Clutch is locking up about .848sec into the run, 1/2 shift is out past the 60'. Notice how far out it carries the G peak, you get a smoother hit that lasts much longer...
View attachment 1715539753
Grant
