NHRA: whats the usual reaction time when it hits green?

If you wait till you see green to hit the gas, you just lost the race.

if a perfect light is .000 I would want no more than .040 any more and you have a good chance to lose the race on a hole shot. I don't know the actual average but I would say its around the .04 to .05. In bracket racing (form of drag racing which utilizes a headstart system to equalize the cars) uses a full .500 tree which means each amber comes on individually and there is .500 of a second in between each bulb the reaction times get lower. I have a computer which counts the time down on the tree and launches the car,. If my reaction isn't a .oox, I roll in delay on the computer to get it.

After you have stage the car when you see the three yellow lites light you hit the gas.