How to launch the AT harder?

[4g63gst20]

I recently got the tune installed and I can tell the difference at about 4k rpms and 19psi. However, my initial acceleration seems still pretty slow. How do I get the auto transmission to actually launch a bit faster?
I have tried the brake and gas but won't rev past 1k .

 

[cndctrdj]

How about ebrake and gas? Anything to hold the car in place while building boost. Traction control off. Pull the fuse.

 

[Blue Moon Sonic]

Don't ever pull the ABS fuse in the automatic sonic's if you want to make use of the car's launch control feature. It's actually built in to the ABS system on the automatic transmission sonic's and if you pull the abs fuse you won't be able to use. I know because I've tried it already. The pulling the ABS fuse option is best reserved for the manual transmission sonic's.

All you need to do is listed below.
1. Hold the T/C button down for 10 seconds to disable the stabilitrak system
2. Apply firm pressure to the brakes and hold the gas down at the same time.
3. Release the brake pedal when it's time to launch.
You should have a 2500RPM torque converter stall at around 10psi. Do not do this for more than 5 seconds because this is very hard on the the whole driveline.

 

[MaD]

Taking the T/C off is fun, you can tell the difference when you mash the gas.. you can get tire chirp.. at least I do in my 14 LT auto [emoji41]

Sent from my SM-G900T using Tapatalk

 

[mendoza_juan]

Don't ever pull the ABS fuse in the automatic sonic's if you want to make use of the car's launch control feature. It's actually built in to the ABS system on the automatic transmission sonic's and if you pull the abs fuse you won't be able to use. I know because I've tried it already. The pulling the ABS fuse option is best reserved for the manual transmission sonic's.

All you need to do is listed below.
1. Hold the T/C button down for 10 seconds to disable the stabilitrak system
2. Apply firm pressure to the brakes and hold the gas down at the same time.
3. Release the brake pedal when it's time to launch.
You should have a 2500RPM torque converter stall at around 10psi. Do not do this for more than 5 seconds because this is very hard on the the whole driveline.

My auto will rev just under 3k, but 2900rmp. Don't do this with the wheel turned, learned the hard way.....

Sent from my SM-N910T using Tapatalk

 

[2THEXTRM]

BNR tuned through Diablo tuner, I can line lock to over 2k and launch with wheel spin through 3rd with my AT. I do not need to touch traction control. Looking forward to more tweaks with EFILive that I bought during the last group buy.

Sent from my XT1254

 

[Blue Moon Sonic]

Pretty sure with the EFI live tune, they actually disable the T/C and S/T so you can do launches.

 

[4g63gst20]

Thanks. I will try it next time I go try out my 1/4 mile at the track.

 

[whitesmoke]

No the efi live does not disable anything on trans. Just push tc button once and dissable tc. Dont worry about st, it will only activate if you go sideways, believe me i know. I have done everything you can imagine exept put it on the roof lol

 

[ScarabEpic22]

No the efi live does not disable anything on trans. Just push tc button once and dissable tc. Dont worry about st, it will only activate if you go sideways, believe me i know. I have done everything you can imagine exept put it on the roof lol

Yet...EFILive is working on enhancing their T76 offering soon (what the 6AT transmissions use). HPTuners already has it, but no remote tune delivery mechanism.