automatic launching [Merged 5-9] launch auto

[ypnas777]

i want to know the best way to launch an automatic . i dont want to be doing nuetral drops cause i just think those are bad for the transmission and i dont want to break anything cause im broke . should i just floor the car or what? i just want to know the best way to lkaunch an automatic without doing nuetral drops thanks

 

[Captainredeyez]

Look just hold the brake with one foot and gas on the other. Find the point where you car wants to sneak forward and remember what RPM's your at. Once you figure that out it should be easy. All you have to do now is line up with someone, hold both brake and gas, when it sneaks a lil come off the gas a bit, then when the hands drop come off brake and mash gas.

 

[dontfeedphils]

Push the gas when the light turns green, that's the beauty of an automatic.

 

[knochgoon24]

Look just hold the brake with one foot and gas on the other. Find the point where you car wants to sneak forward and remember what RPM's your at. Once you figure that out it should be easy. All you have to do now is line up with someone, hold both brake and gas, when it sneaks a lil come off the gas a bit, then when the hands drop come off brake and mash gas.

You can use the e-brake (in combination with the foot brake) for a little more stopping power for slightly higher RPM.

 

[the_mork]

Be ready to change your end clutches after you've launched an automatic a few times especially if you do neutral drops.

Easy process though send IPT $90 and spend an hour or two at your workbench and 5 minutes under the car.

 

[chico904]

There was a guy that tried everything at the track for comparisons, and for him he found better results starting it in 2nd and brakeboosting. I will try and find the thread posted a while ago.

 

[chico904]

Be ready to change your end clutches after you've launched an automatic a few times especially if you do neutral drops.

Easy process though send IPT $90 and spend an hour or two at your workbench and 5 minutes under the car.

That along with your ATF fluid.

 

[beautifulpunk]

the best way to launch is not to so it at all on a stock tranny

 

[chico904]

the best way to launch is not to so it at all on a stock tranny

What?? WTF

 

[Captainredeyez]

the best way to launch is not to so it at all on a stock tranny

WTFWHAT!WTF

 

[the_mork]

the best way to launch is not to so it at all on a stock tranny

Automatics actually hold the power pretty well and don't break (as often) like manuals and are fairly reliable even when they are abused. A lot of people give us shit for it but in a lot of ways automatic transmissions are superior to manual transmissions (especially in DSMs). I'm not trying to start a fight about transmissions though, and if you want a comparison there is already a thread about it somewhere on the board.

I am assuming you're talking about a manual, if you aren't then you just haven't abused your car enough to find its limits...or maybe you abused it too much, I don't know.

 

[420a-t]

I've launched a stock tranny numerous times and nothing broke nothing. Ran a 12.3 with a stock tranny/converter too. They can take a lot of abuse. They're good for track times, but don't expect to have your awd auto put down as big of numbers as a fwd manual...

 

[costas14]

, i do neutral drops with my uncles dd neon, that tranny is making funny sounds now, though his new mercedes sl550 u hit the gas and it takes off like a plane

 

[joyfil2001]

I got a 1.6 60" at the track on a blown turbo by just brake boosting. I got to the line, shifted to neutral, reved it up and mashed the brake down. shifted back into 1st and started to floor the gas to build boost. Once I was at 20psi I let go of the brake and the car took off like a freight train.

 

[fresh83]

k just makin sure , and nah id never say dsms are shit ive wanted one since i was 12 and im pretty sure all the wheels could fall off and the engine could blow and i still wouldnt give up on it

 

[toofast82]

If you hold the brake to long it will start to retard timing and make your car loose power. You shouldnt have to hold the brakes for no longer than 3 to 4 seconds. You can cause wear on your tranny if you keep doing it without letting your tranny fluid cool. After every launch, I would give your car a short break and let the Auto Tranny fluid cool. One more thing, dont do neutral drops because your tranny wont hold up. Hope this helps

You almost want to let go of brake while the boost is still increasing and reaches its highest point. The timing begin will decrease if you sit on it too long as well.
My old stock 2g would stall at 3-3200rpm on foot brake
Same with my current 1g

 

[AWD_Launch]

I have 97 GSX automatic, I'm fine from a rolling start but I cant really figure out how to get a good launch. can someone help me?

Get a better stall converter and install it correctly. Next push on the brake and pull the E-brake to make sure the car won't move and push the pedal to the floor and wait for it to build boost to the desired PSI then let go of the E-brake and take your foot off of the other brake and hold on for a fun ride.

Here is a horrible night vision of my car in action...
Travis Clemons 10.79 @ 128 Video by Steve - MySpace Video

make sure you have a better prepped track so you don't just sit and spin like I did though

 

[05gt Guru]

You know just brake boosting hurts the tranny. Every second you hold the brake and gas down is a 100degrees the temp inside increases. Its just bad to do that unless you have tranny built for racing. Or unless you plan on blowing your tranny up and having it build for racing .

 

[DSM4me44]

No matter what, I could never get a good launch. It always seemed that my car would fall flat on its face. I fixed my problem by doing an auto to 5 speed conversion and installing DSMlink with a launch control stutterbox.

 

[420a-t]

You know just brake boosting hurts the tranny. Every second you hold the brake and gas down is a 100degrees the temp inside increases. Its just bad to do that unless you have tranny built for racing. Or unless you plan on blowing your tranny up and having it build for racing .

Hmm, I've never heard of that. I've looked at my tranny temp gauge, and the fluid seems to raise a little in temps, but nothing like 500 degrees in 5 seconds.

I noticed you're all stock, including the turbo, correct? Get up to the line, put the car in neutral, and rev on your motor. While you're doing this, press on your brake pedal. when the car see vacuum again, the pedal will get sucked down to the ground more, so your car can stay put more when you're brake boosting.

Then, put the car back in "D" and mash on the gas. Look at your boost gauge and RPM's while you're doing this to see where everything's at. If you start to creep foreward, hold onto the e-brake as well.

When you try this, see what RPM you find that you just cannot hold the car anymore. After you find that out, launch the car right before you get to that RPM point.

You don't need an aftermarket stall converter with a t-25 and stock auto cams.

Good luck!

 

[moparismylife]

Screw nuetral bombs....Who ever does that or listenes to someone who does it....is just freaking stupid. Do it once and see why you dont do it. Like said before, get a higher stall converter. Its like how manuals brake boost from a roll. Hold the brake slightly and add some gas. It will build boost an then let her go. Mess wit it a bit b/c it does take some learning.

 

[joyfil2001]

Does anyone here use nitrous or meth to spool their turbo?

 

[Bud92gsx]

Roadsurge auto two button shifters, New torque converter, line lock, trans brake are all good mods to really get the most from your auto.. a 5spd ecu would probly help out the guys who are still brake boosting with an auto..If you don't know, The auto ecu starts retarding timing when brake boosted for too long. Swapping to a 5spd ecu will indeed fix this issue..Starting out in 1st is a great idea, but 1st gear under boost is really short in an auto dsm..If using a stock turbo you get more take off boost than us who use a 16g or bigger.. I could brake boost the hell out of the stock 13g and take off like a rocket. Now with the 16g I have to wait to be under boost.. I will try to work with my tranny this spring and find out the best way too launch with a kinda stock dsm.. Also I am using a two button shifter which allows me to select whatever gear I want and there is NO delay on shifting..

 

[talonsteve25]

Iv tried a few times to do this but every time my car bogs and i cant make more then 10 psi with a small 16g. Iv read of people being able to spin tires in an awd which is crazy with a t25? I thought if i leaned it out a bit it would help build more boost? I dont know any suggestions? And iv read through the launching fourm but i want to know WHY my car bogs not how to launch.

 

[rush2252]

Unless you have a custom TC or a high stall your not going to have much luck launching an auto.

 

[Bluefire16]

You must be kidding? I brake launched mine at 13/14psi the other day. Granted i have the roadsurge trip tronic box...and a LITTLE higher stall, but hardly anything torque converter. I just mash on the brakes, and very softly give it gas, should take like 6 seconds to fully hit my boost at 14psi. Thats all i was going to let it get to, im pushing 18 psi atm. Im also running a small 16g....

Oh and ### are your brakes? I have powerslotted rotors, and good pads....might be why...if your brakes are soon needed to be changed.