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Guys - i would like to get under 3 seconds on my launch. and any tips or help i would apprecaite it. Still learning this car as i just picked up a I have a 2020 C8 , with Z51 package.
Not sure which settings work best for this launch .
Any recommendations to prevent wheel spin and have consistent under 3 seconds launch in a 0-60? Thank you
2025 C8 Z06/7/E-Ray of the Year Winner - Unmodified
2021 C8 of the Year Finalist - Unmodified
Originally Posted by KeeganJacobs
Guys - i would like to get under 3 seconds on my launch. and any tips or help i would apprecaite it. Still learning this car as i just picked up a I have a 2020 C8 , with Z51 package.
Not sure which settings work best for this launch .
Any recommendations to prevent wheel spin and have consistent under 3 seconds launch in a 0-60? Thank you
I tried track mode PTM - SPORT 1 - 3.3 , and i tried sport mode - competitive mode since we can't go in PTM from sport mode and i got 3.3
I see videos getting under 3 , i wouldn't mind getting 3 flat.
The other question i had is what would be the best acceleration from a roll on My mode or Z mode ? Do many put everything on track mode and suspension on Touring when wanting to setup quick pulls from a roll?
We can't use these Z modes or My modes on launch control, correct?
2025 C8 Z06/7/E-Ray of the Year Winner - Unmodified
2021 C8 of the Year Finalist - Unmodified
Originally Posted by KeeganJacobs
I tried track mode PTM - SPORT 1 - 3.3 , and i tried sport mode - competitive mode since we can't go in PTM from sport mode and i got 3.3.... We can't use these Z modes or My modes on launch control, correct?
Yes, you can!
There are a TON of variables, which is why I asked about where you are in this process.
In this video, I show how to set up PTM in Z-Mode by pressing two buttons, and off you go!
hmmm i have a 2020 , 3LT , with Z51 package but i don't see those options on my screen. I have PTM but it doesn't have Launch Control listed as below. It just takes me to PTM ( wet, dry, sport 1, sport 2, race , ) options.
These pictures on your video doesn't come up on mine however i am able to get the RPM to 3500 and it holds before launch. Is it because mine is a 2020 or my software needs updated ?
2025 C8 Z06/7/E-Ray of the Year Winner - Unmodified
2021 C8 of the Year Finalist - Unmodified
Originally Posted by KeeganJacobs
hmmm i have a 2020 , 3LT , with Z51 package but i don't see those options on my screen. I have PTM but it doesn't have Launch Control listed as below. It just takes me to PTM ( wet, dry, sport 1, sport 2, race , ) options.
These pictures on your video doesn't come up on mine however i am able to get the RPM to 3500 and it holds before launch. Is it because mine is a 2020 or my software needs updated ?
I had a 2021 Stingray before, but I'm not sure how different a 2020 is. Are you saying you don't see Launch Control anywhere in the Performance menu? Maybe try scrolling the thumbwheel on the steering wheel up or down? The graphics are different on my 2024, but you should still have Launch Control with a 0-60 timer, like in the video above.
I had a 2021 Stingray before, but I'm not sure how different a 2020 is. Are you saying you don't see Launch Control anywhere in the Performance menu? Maybe try scrolling the thumbwheel on the steering wheel up or down? The graphics are different on my 2024, but you should still have Launch Control with a 0-60 timer, like in the video above.
yup on 2020, there is no Launch control anywhere in performance menu, however i do have PTM settings and when activate launch, it does go up to 3500 and holds RPM there until i take off.
Are your best launches in sport mode or track mode ? If its track mode, are you having the best launches on DRY mode or Sport 1 or 2 or Race ?
2025 C8 Z06/7/E-Ray of the Year Winner - Unmodified
2021 C8 of the Year Finalist - Unmodified
Originally Posted by KeeganJacobs
yup on 2020, there is no Launch control anywhere in performance menu, however i do have PTM settings and when activate launch, it does go up to 3500 and holds RPM there until i take off.
Are your best launches in sport mode or track mode ? If its track mode, are you having the best launches on DRY mode or Sport 1 or 2 or Race ?
Honestly, I'm not sure. In the video, I launched in Competitive Driving Mode in Sport and in PTM Dry Mode, and they were different only by 0.1 second. Obviously, the car timer and the Dragy showed quite different readings, but the interesting thing is they didn't even agree about which run was quicker!
As you may have also seen, the PTM settings are different in the newer C8s... at least, the names have been adjusted. I didn't try either of the Race settings because I had PTM set to "Race 1" before, and I was getting wheel spin just pulling away from a stop sign (not launching). I think the bottom line is that it takes a lot of experimentation to see which is quickest because it really depends upon your tires (air pressure, temperature, etc) and the surface you're on.
my rear tires are at 5 to 6 / 32 in tread life, do you think that can be why I'm sliding too much? Trying to understand how tread on these Michelin tires work. Lets say even if i don't have much tread left, how will that effect traction on launch because those tread marks are there for the rain only correct?
As in new tires , whcih do you prefer on great traction for launch on street when safe ofcourse?
my rear tires are at 5 to 6 / 32 in tread life, do you think that can be why I'm sliding too much? Trying to understand how tread on these Michelin tires work. Lets say even if i don't have much tread left, how will that effect traction on launch because those tread marks are there for the rain only correct?
As in new tires , whcih do you prefer on great traction for launch on street when safe ofcourse?
I've got a non-Z51 with around 24K miles. I've done dozens of launches. There are a few variables that have to be right to get sub 3 second 0-60 times. In order of importance:
1. Tires have to be relatively new. Less than around 3-5k miles. In my experience, the PS4 All Seasons get slightly less grip as they wear, but I did get almost 23k miles from the original set so I stuck with them over the PS4S option. It's not a huge drop off, but enough that you will get a little spin at launch after they're a bit worn.
2. Outdoor temperature needs to be around 70-80 deg F.
3. Concrete road surface. Not asphalt.
4. I'm in Georgia, so the elevation is around 1,000 ft. If you're in the mountains, I think it will be tough to get under 3 seconds.
Under these conditions, I was able to get 2.8 - 3.0 second 0-60 times on about half the runs. If you get any tire spin, you're not going to be under 3 seconds. PS4S should be better if the weather is warm enough.
I've got a non-Z51 with around 24K miles. I've done dozens of launches. There are a few variables that have to be right to get sub 3 second 0-60 times. In order of importance:
1. Tires have to be relatively new. Less than around 3-5k miles. In my experience, the PS4 All Seasons get slightly less grip as they wear, but I did get almost 23k miles from the original set so I stuck with them over the PS4S option. It's not a huge drop off, but enough that you will get a little spin at launch after they're a bit worn.
2. Outdoor temperature needs to be around 70-80 deg F.
3. Concrete road surface. Not asphalt.
4. I'm in Georgia, so the elevation is around 1,000 ft. If you're in the mountains, I think it will be tough to get under 3 seconds.
Under these conditions, I was able to get 2.8 - 3.0 second 0-60 times on about half the runs. If you get any tire spin, you're not going to be under 3 seconds. PS4S should be better if the weather is warm enough.
Thank you. I have 15k miles on my car , and i live in Arizona with 1,175′ FT elevation. Its usually hot here but these days we are getting low 50's and high 70's.
I thought asphalt would be stickier than concrete? Or is that what you meant?
Back on tirest question i am just trying to understand this, and sorry if its a rookie question. Even if the tires are used as in the tread is around 5 to 6 / 32inch - how does this effect traction on a dry road because the material on the tire is still there? Those tread lines are there for when it rains correct?
Guess what i am trying to figure out is how does used tires effect traction on dry pavement because material is still there?
Guys - i would like to get under 3 seconds on my launch. and any tips or help i would apprecaite it. Still learning this car as i just picked up a I have a 2020 C8 , with Z51 package.
Not sure which settings work best for this launch .
Any recommendations to prevent wheel spin and have consistent under 3 seconds launch in a 0-60? Thank you
Granted I have an E-Ray but find even with 345 rear tires the LT2 puts out sufficient torque to cause significant tire slippage if are not heated. That is on an unprepared asphalt road street surface.
I accomplish that by driving aggressively in Track Mode (actually Z-Mode power/trans set to Track) for about 5 miles. In addition, when I turn onto the on the asphalt "test road" I use (it's 3/4 miles long, mostly farm fields both sides and often no traffic) I accelerate at WOT from ~10 mph to 95+ then brake aggressively (~0.8 "g") just before conducting the GM Dash Test.
You can watch the video by a fellow who also reached 2.1 seconds (GM Dash test that they subtract dragstrip roll out like the car mags that publish 0 to 60 times.)
You'll see prior to doing the Dash Test he did a number of aggressive laps on a road course track. That heated the tires. Can tell by his tire pressure, even higher than mine which in my case are set per the door panel 30 rear, 32 front when cold! Have matched that 2.1 recently from the Pic below done when I had ~1500 miles.
hmmm i have a 2020 , 3LT , with Z51 package but i don't see those options on my screen. I have PTM but it doesn't have Launch Control listed as below. It just takes me to PTM ( wet, dry, sport 1, sport 2, race , ) options.
These pictures on your video doesn't come up on mine however i am able to get the RPM to 3500 and it holds before launch. Is it because mine is a 2020 or my software needs updated ?
Do you have the mag ride option? IIRC both Z51 and mag ride are required to have some options.
Do you have the mag ride option? IIRC both Z51 and mag ride are required to have some options.
JT
yes my 2020 has mag ride and z51… I don’t have option to double click z mode to take me directly to competitive mode or launch mode.
On mine you could only press it once to light up z mode
On newer tires vs used tires- I am trying to understand why it would be better tracktion on new tires when the tread marks are there to help with rain only ? Used tires, the material is still there for traction so how would it be better on newer tires?
Last edited by KeeganJacobs; Nov 30, 2024 at 05:18 PM.
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C8 with z51 launch
