[tortilla-flats]

Is there a known issue with the Launch Control?

I keep pushing through the lights. I know (pretty sure) its activated because after it bumps forward, it stops with my foot flat on the gas.

It just hard bumps forward when I try to activate it. Tomorrow I'm just going to foot brake it. Can't go rounds if you're red.

[tortilla-flats]

I should add, I never had this problem with either of my C7 Corvettes.

[tortilla-flats]

Good grief, Charlie Brown! I can't stage this car to save my life! Tried just foot braking today and still slid deep and redlit.

What choices are there for aftermarket launch controls?

I'm aware of both a Lingenfelter and MSD 2-step (don't really need the second step or retard feature).
Anything else?

[2SS Capt]

Originally Posted by tortilla-flats

Is there a known issue with the Launch Control?

I keep pushing through the lights. I know (pretty sure) its activated because after it bumps forward, it stops with my foot flat on the gas.

It just hard bumps forward when I try to activate it. Tomorrow I'm just going to foot brake it. Can't go rounds if you're red.

You do realize you are supposed to rapidly floor the gas and then launch control will work properly, if you try to ease the gas in it doesn't work... The first few times I tried it and it did the same thing, then I re-read it and when I stomped on the gas the engine came up to the set RPM and held...

Check page 162 in the owners manual...

[tortilla-flats]

I've got more than 50 competition passes in my C7s using launch control. Never had any issues like this. That's the root of my frustration.

[2SS Capt]

Originally Posted by tortilla-flats

I've got more than 50 competition passes in my C7s using launch control. Never had any issues like this. That's the root of my frustration.

I know nothing about the C7 Launch Control, but once I followed the Camaro Manual on how to actually properly use Launch Control I never had any further issues with the car creeping or lurching forward...

I was very hesitant to aggressively floor the throttle as I thought everything would break loose, but it ended up working very well...

Perhaps they operate differently?

[SpeZ]

Many tunes break the launch control.
Either Wheelhop control or the traction control or maybe both need to stay enabled in HpTuners.
Otherwise it won't limit to the target rpm.

[tortilla-flats]

Originally Posted by 2SS Capt

I know nothing about the C7 Launch Control, but once I followed the Camaro Manual on how to actually properly use Launch Control I never had any further issues with the car creeping or lurching forward...

I was very hesitant to aggressively floor the throttle as I thought everything would break loose, but it ended up working very well...

Perhaps they operate differently?

It's the same setup/methodology. Expected it to behave the same. I will say, after pondering your comment a bit, I have been focusing on making sure I'm stomping on the brake pedal hard enough. The brake pedal feel seems different with the Camaro. Perhaps in focusing on the brake, I'm laying into the gas and not stomping on it? I'll make a point of paying attention to that today.

[tortilla-flats]

Originally Posted by SpeZ

Many tunes break the launch control.
Either Wheelhop control or the traction control or maybe both need to stay enabled in HpTuners.
Otherwise it won't limit to the target rpm.

Tune didn't seem to impact the C7. But we're talking a 6-7 year gap in the computer, so maybe?

I'll also add, I was having this same problem prior to any tuning when it was stock.

[tortilla-flats]

Tried again in the parking lot; no beuno. It definitely lurches forward a bit before the launch control settles and locks in. Foot braking for now.

Wonder if this can be fixed in the tune?

[tortilla-flats]

PB mph in the 1/8th. 94.96 mph. 7.64 ET
Still trying to get my 60' down in the 1.6s.

Potential is there. I just need to get the 60' down.

[2023_ZL1-AUTO]

So, something I will add about the MSD 2-Step: I would not recommend a MSD 2-Step on a 6th gen ZL1, if it acts the same as it did on my car, on all 6th gens. The MSD 2-Step actually caused total havoc with multiple engine codes on mine. The biggest that throws the car in lip mode is code P0300 - Random Multiple Cylinder Misfire. After having a bad experience while testing the MSD 2-Step, engine codes and causing my engine to rocked hard side-to-side as if it looked like it was ready to jump out of the engine bay. I immediately uninstalled.

I did some more research and picked up the "Drag Box Launch Control" from getawaycarz.com This actually works way good. This device basically intercepts the ECM reading of the actual % of throttle peddle and manipulates that reading to your preset value. So, what the computer sees when the device is turned on while the break peddle is fully pressed, and the throttle peddle is fully pressed, is managed by you.

So, the process is:

1) Do your burn out and complete it.
2) Turn on the device switch (easy)
3) Stage your car at the lights
4) Press the break fully
5) Smash the throttle peddle to the floor
5) When ready to leave, let off the break peddle.

Presto! You launch like a seasoned professional!

The badass thing about this device, it has a throttle ramp-in dial. This allows you to literally adjustment on how fast the ECM sees 100% throttle and this prevents you from just instantly breaking your tires lose and spinning. It works great!

This device can also be adjusted real-time from in the cab via the dials on the device. This will help as you don't have to pop the hood and adjust dial controls.

I started my post of the MSD 2-Step post: at #545, then it goes to post # 563 when I installed the Drag Box Launch Control.

This is my post on my thread where I installed the MSD 2-Step:
https://www.camaro6.com/forums/showp...&postcount=545

and all the way through to this one

Drag Box Launch Control Install:
https://www.camaro6.com/forums/showp...&postcount=563

[lt4camaro]

Originally Posted by tortilla-flats

PB mph in the 1/8th. 94.96 mph. 7.64 ET
Still trying to get my 60' down in the 1.6s.

Potential is there. I just need to get the 60' down.

I have not been on the forum for over a year and just wanted to throw this out to you. My best pass in a 2021 LT1 10 speed car with a drag pack, E70, LT2 unported intake, ported TB (effective 91 mm) modded factory air box, borla touring cat back exhaust and a bolt on mid pipe with no secondary cats, 174 degree stat, pass seat out, rear seat out, no launch control. Just mat it from a dead idle 1.67 60ft, 7.35 1/8 mile @97.99, 11.34 @ 123.62 mph in 1100DA. No headers, no cold air intake, TCM never touched.

[tortilla-flats]

Yep. I turned a 1.68 recently. And then consistent 1.70x the rest of the day. The car just does not like to have the suspension loaded up like when you power brake.

Welcome back and thanks for the input/advice!

I'll be removing the 2-step over the winter. No point with the way the car wants to leave.

From my drag racing thread: New PB. 7.43 @ 96.46 mph. 1.68 60'.
https://www.camaro6.com/forums/showp...1&postcount=20