[twin turbo]

Gearing, tires, suspension optimization, air temps, road conditions, and rolling into the throttle vs punching it will determine where your traction (or lack of it) occurs. With my previous engine and transmission, I consistently fully hooked in 1st gear (Gforce 5 speed with 3.08 rearend gears, Nitto 555R 315/17 tires), as long as I rolled into full throttle with 420 rwhp (Mustang dyno). It felt good in 1st, but 2nd gear onwards was lacking for me. I just don't drive around much in 1st gear.

Nowadays, I typically drive with 550-600 rwhp and "usually" hook up from 2nd gear onward when the temps are 70 degrees and above, but have changed my set up to a full manual auto trans, 2.73 rear gears, and stickier Nitto NTO5R tires. Cold air temps, I can't hook up 2nd at all, even at 500 rwhp.