potential hazards by holding brake while gassing?, talking about an automatic Options

[daazndood]

hey guys. i was wondering if it would be bad for a car if i were to hold down the brake and gas at the same time , sorta like to launch the car by releasing the brake.

i noticed that i can go 0-60 in 10.2 seconds if i just step on the gas alone, but if i hold down the brake and rev the engine to about 2k(thats highest i can keep it before it starts moving) and release the brake i can hit 60 in 9.4. i was just wondering if i am hurting my car. i really dont do this that much and i dont try to race or speed anyways. thanks guys

[Bitter]

ive done it many of times with no damage, just dont hold against the tq converter for more than 5 seconds. as a matter of fact, what you do is a diagnostic procedure in the service manual, just minus the launching part.

worst case, you break a weak axle, cv joint, or sheer a pressure plate bolt. but at stock power levels thats VERY remote. just dont nuetral drop it!

heres a little how-to from another site that i wrote

1. Find your stall speed.
a. In an empty parking lot, or somewhere desolate, put one foot down HARD on the brake pedal and then slowly apply the gas pedal until the rpms come up and stop rising. that is the stall speed that I will refer to later.
b. write this number down, mark it on your guage face with a non permanent marker, or memorize the needles position. you will need this later.

2. Practice.
a. Using the 2 foot technique (one on gas and one on brake) determine the amount of brake pedal pressure needed to hold the car in place with the engine at the stall RPM.
b. Now with your foot on the brake with the needed amount of pressure slowly raise the engine RPM to the stall, then drop back from the stall by 200 RPM.
c. Finally, this is the tricky part where you need cordination. Release the brake pedal WHILE mashing the gas. the 2 actions have to happen at the same time, if you bounce off the stall your launch is ruined.

3. Experiment
a. Find at what engine rpm you feel like you get the best launch from. different cars with different mods have different power bands. some may launch the best right at stall while others may do better several hundred rpm below stall.


there, now you know how to launch an automatic, or atleast how i was (self) taught. will you get the tire smoking burnouts that a 5spd will? nope. will you get slightly better 60ft times? maybe

This post has been edited by Bitter: Sep 14, 2006 - 11:37 PM