if you apply the brake and the accelerator at a stop to get a good jump on someone, how high can you let the engine rev without risk of damage?
i mean, if the motor's revving and the wheels aren't moving, where's all that energy go? isn't something going to break/blow eventually?

 

hum.. i dunno where all the NRG gose.. but i do that some tym's when some rice rocket wants to race.. but when i do it.. i rev it up about 2000rpm's some tyms 2500.. it works.. but don't do it to much.. i'm pretty sure after awhile u'll strip your gears....

 

Don't torque break to get a good launch. Flashing the TC is a better method and puts less wear on the TC. This is what you do: Hold in the brake hard with your left foot. Rest your foot on the gas (maybe just feather it if you want). Then, floor the gas pedal and release the brake a split second after. This should allow the TC to reach the stall speed and give you a good power transfer to the wheels.

 

On an automatic, when you rev the engine and hold the brake, the engine is turning the impeller in the torque converter (TC), pumping fluid through the turbine in the TC. The turbine tries to turn the geartrain, but you're holding the brake, keeping the wheels (therefore geartrain) from moving.
A lot of the energy goes towards heating up your transmission fluid, which isn't good.

 

thats pretty much what i did when i got some of the fastest times. it works really well too, just need to make sure that the damn tires dont spin too much if ur shifting manually. i remember once when i did that, my tires were wet cos of the water at the edge of the track, and i pretty much felt zero traction till i hit 2nd! that taught me a lesson or two