How often do you launch control?
The Stingray feels so strong in the first gears, not so much after 70mph.
Tadge said in the ZR1 release the the ZR1 could go from 80 to 200 to 80 in 25 seconds(maybe he said 20 seconds?).
I don't mind stopping to let people turn in front of me just so I can accelerate afterwards. Even my wife loves the sounds and the DCT shifts!
Of the 30 plus C8 owners in our Corvette club less than four of us have used launch control.
Weird to me that people will put painters tape over their trackwrap under their Novistretch to drive four exits on the interstate but will hammer the drivetrain...
The Best of Corvette for Corvette Enthusiasts
Interesting comment with no details made by GM’s Chief Engineer, Piatek: “We found that during very aggressive launches we can drive torque through both shafts/clutches simultaneously which improves the 0 to 60 times.”
Road and Track interpretation of that statement was: "With the C8's Performance Launch mode, the car will actually use the inertia of the engine coming down between revs to propel the car forward. Chevy calls these "Boosted Shifts," and they're only used with a Performance Launch.
In a recent post it was indicated GM is doing what some other performance DCT's do. Put power thru both clutches simulations BY SLIPPING THE CLUTCHES. I posted that must be for only milliseconds. A member who works in the automotive control field said with some performance DCTs it's near 100 milliseconds.
I have used Launch Control several times AFTER I had over 1500 miles on my E-Ray. Prior I had made many non-Lauch Control GM 0 to 60 Dash Tests. After I learned some "tricks" I consistently achieved 2.5 seconds, one with my ~190 lb visiting cousin in the car who has a Porsche Carrara 4S mechanical AWD. He noted the E-Ray was a much more aggressive Launch. On his next visit I'll make one with Launch Control, hard to describe how aggressive the Launch is on street pavement.
This has been my best after Launch Control:
Now before folks without an E-Ray get their shorts in a knot, GM subtracts dragstrip rollout similar to Car Mags when they post 0 to 60 times. so the actual number is higher. How much? Don't know but my SWAG is it could be ~0.3 seconds. That may be because they are using an array of 3 accelerometers to define start that can detect minute movement in any direction. Not using satellites 12,555 miles in the sky! GM has 4 of those arrays in the C8 to provide control input to MRC shocks. Note they don't send signals to satellites to do that! BTW Tesla Electronics G-TECH Pro uses an array of accelerometers to detect start for their measurements.
To achieve this number (which others have done as as well) I used what I learned from prior launches without launch control. Have to:
1) Get the EV battery at 100% charge, not it's normal 80%. I do that by driving in Z-Mode set to Track for >10 miles which also heats the tires;
2) Further heat the tire surface just prior to the test by accelerating at WOT from ~10 to >95 mph;
3) Followed by immediately braking at ~0.8 "g" just prior to the Test;
4) Also had low fuel in tank, great weather.
Note my "passenger" only weights 11 lbs. Remi' is like Enzo in the movie "Racing in the Rain," he loves speed.

I do use Launh Control sparingly but think what I do all the time is "tough" on the DCT. But did that for 4 years with my DCT, never an issue. The 25-mph speed limit rural road I live on is off a 4-lane divided highway. There is traffic in both directions, going ~70 mph to and from Myrtle Beach and I95 South. It's often heavy with RV's in the packs of traffic. Don't want to have folks slow for me so I apply the brakes very aggressively traveling in Z-Mode Power set to Track. No need to use the downshift paddle as in that Mode it downshifts several gears, Rev Matching each all in the blink of an eye. Love the sound!
Last edited by JerryU; Jul 27, 2024 at 01:14 PM.





If it was "damaging" to the car, GM would not have made it an option.


























