a stupid question on launch control
Popular Reply
May 16, 2021, 10:05 AM
Race Director
Joined: May 2008
Posts: 10,742
Likes: 629
From: Manheim Pennsylvania
I have never used it. I think it is hard on the vehicle, certainly doesn’t help it. Another thing; there are no new replacement Corvettes being manufactured. The C8, not my style.
Safety Car
Joined: Dec 2012
Posts: 3,871
Likes: 1,870
From: St. Louis Metro East IL
Yep
It's in your owner's manual pg 207. It works differently for M7 and A8 transmissions.
https://my.chevrolet.com/content/dam...s%20Manual.pdf
Lots of good info up in the C7 General Sticky Threads.
Be safe and have fun!
Ron
It's in your owner's manual pg 207. It works differently for M7 and A8 transmissions.
https://my.chevrolet.com/content/dam...s%20Manual.pdf
Lots of good info up in the C7 General Sticky Threads.
Be safe and have fun!
Ron
Race Director
Joined: May 2008
Posts: 10,742
Likes: 629
From: Manheim Pennsylvania
I have never used it. I think it is hard on the vehicle, certainly doesn’t help it. Another thing; there are no new replacement Corvettes being manufactured. The C8, not my style.
Melting Slicks
Joined: Sep 2016
Posts: 3,076
Likes: 1,204
From: Northville Michigan
C7 of the Year - Unmodified Finalist 2021
Plenty of videos on YouTube on how to use Launch Control! click here and find tons of video instructions: https://www.youtube.com/results?sear...launch+control
One example:
One example:
Last edited by KGrant; May 17, 2021 at 04:44 PM.
Le Mans Master
Joined: Oct 2014
Posts: 8,674
Likes: 2,728
From: Atlanta GA
On a A8 it's not hard on the car at all ....I use it all the time at the track for consistency when bracket racing as there is little chance that you will blow the tires off of it at launch but u will loose a few tenths over learning how to launch with out LC as it does pull power in an effort to keep the tires from spinning
On a well prepped track it's like getting shot out of a cannon, on a no prep it will pull power but only the most experienced drivers will launch better in street tires , I can pull a 1.7 1.8 60 ft with my lightly modified LT 1 on factory heavy run craps
I love my Launch control
Dave
On a well prepped track it's like getting shot out of a cannon, on a no prep it will pull power but only the most experienced drivers will launch better in street tires , I can pull a 1.7 1.8 60 ft with my lightly modified LT 1 on factory heavy run craps
I love my Launch control
Dave
Last edited by Dcasole; May 17, 2021 at 07:13 PM.
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Le Mans Master
Joined: Oct 2014
Posts: 8,674
Likes: 2,728
From: Atlanta GA
To engage , put car in Race Mode , tap mode button twice to go in competition mode, stand on the brake pedal like u are doing an emergency stop , press gas to floor fast , tach will shoot up and settle at 1,800 , release pedal and hold on lol lol 😆
If brakes don't hold. You did not set LC correctly
Dave
If brakes don't hold. You did not set LC correctly
Dave
Team Owner
Joined: Sep 2000
Posts: 25,025
Likes: 2,716
From: Far NW 'burbs of Chicago
St. Jude Donor '13
Since PTM has several sub-modes (wet, dry, etc), does selecting different sub-modes have any effect on how much power/wheelspin you get initially in the first few feet, or is the computer quick enough to get it correct immediately regardless of sub-mode?
Also, would it work with the A8 if you start in 2nd instead of 1st?
Some autocross courses have a sharp turn very shortly after leaving the start, and I sometimes use 2nd for the start to help modulate the excess power available when cornering immediately.
Also, would it work with the A8 if you start in 2nd instead of 1st?
Some autocross courses have a sharp turn very shortly after leaving the start, and I sometimes use 2nd for the start to help modulate the excess power available when cornering immediately.
Last edited by Gearhead Jim; May 17, 2021 at 08:05 PM.
Le Mans Master
Joined: Oct 2014
Posts: 8,674
Likes: 2,728
From: Atlanta GA
Since PTM has several sub-modes (wet, dry, etc), does selecting different sub-modes have any effect on how much power/wheelspin you get initially in the first few feet, or is the computer quick enough to get it correct immediately regardless of sub-mode?
Also, would it work with the A8 if you start in 2nd instead of 1st?
Some autocross courses have a sharp turn very shortly after leaving the start, and I sometimes use 2nd for the start to help modulate the excess power available when cornering immediately.
Also, would it work with the A8 if you start in 2nd instead of 1st?
Some autocross courses have a sharp turn very shortly after leaving the start, and I sometimes use 2nd for the start to help modulate the excess power available when cornering immediately.
Yes to your first question but you have to be in track mode and in competition mode , I don't have mag ride so I don't have sub modes and no to the second , you can not engage it in 2nd gear and also not sure if you would want to use it in an autocross start as a 1.7 60 ft time is pretty fast and in competition mode all the nannies are off
Last edited by Dcasole; May 17, 2021 at 09:07 PM.
Le Mans Master
Joined: Oct 2014
Posts: 8,674
Likes: 2,728
From: Atlanta GA
I only have two videos racing my C7 because using the PDR while in the staging lanes is a pain , one where I used my PDR and one where I used my go Pro, on the race where I used the PDR , the car in front of me dropped water on the track , u can see the track guy make an attempt to clean it but I could still see it was wet , I did not want to go
But I had no choice , as soon as I launched you can see the RPM's drop as the tires hit the water and the ECM pulled power .. miserable 60 ft time and the car only popped a 12.6 quarter mile time ... Hopefully I will get a chance to go to the track this year and use the PDR but now we are dealing with this gas shortage in the south. I actually had to put some regular gas in the tank and my tune does not like it one bit ...
Dave
But I had no choice , as soon as I launched you can see the RPM's drop as the tires hit the water and the ECM pulled power .. miserable 60 ft time and the car only popped a 12.6 quarter mile time ... Hopefully I will get a chance to go to the track this year and use the PDR but now we are dealing with this gas shortage in the south. I actually had to put some regular gas in the tank and my tune does not like it one bit ...
Dave