2.6
0-60 performance
Thread Starter
4th Gear
Joined: Feb 2022
Posts: 4
Likes: 0
0-60 performance
When I’m doing a 0 to 60 I get everything all set foot all the way down on the brake fuel pedal all the way down also. The problem is when I let off the brake the car takes off and then takes a nose dive. I get a check engine light during this but goes off later in the day. Has anyone else come across this problem? I’m not home much during the week so I have to catch the dealership on the weekends.
Thanks to all that have an answer.
Thanks to all that have an answer.
Drifting
Joined: Mar 2020
Posts: 1,569
Likes: 1,027
From: 31 hours East of Peoria, AZ
When I’m doing a 0 to 60 I get everything all set foot all the way down on the brake fuel pedal all the way down also. The problem is when I let off the brake the car takes off and then takes a nose dive. I get a check engine light during this but goes off later in the day. Has anyone else come across this problem? I’m not home much during the week so I have to catch the dealership on the weekends.
Thanks to all that have an answer.
Thanks to all that have an answer.
"The first step is to put the car in drive and select Track mode, then double-tap the ESC Off button just ahead of the mode selector ****. This will bring up the PTM menu on the instrument cluster and allow you to select which program you want with the mode selector ****. The programs are familiar—Wet, Dry, Sport I, Sport II, and Race—and the computer safety net shrinks as you go through them. It doesn't matter which you pick; launch control works in all of them and will give the best launch regardless."
Race Director
Joined: Aug 2016
Posts: 12,768
Likes: 10,201
From: Garden Valley CA
Just for clarification, you will only see the PTM menu if you have a Z51 with MSRC. Other variations will have other options.
You shouldn't be getting a CEL light even if you are doing something wrong. Unfortunately, it looks like a trip to the dealer is in your future. Good advice posted above to bring your car to the dealer with the CEL light on or be able to demonstrate the problem to him. The tech would probably look forward to diagnosing a problem that requires using launch control.
You shouldn't be getting a CEL light even if you are doing something wrong. Unfortunately, it looks like a trip to the dealer is in your future. Good advice posted above to bring your car to the dealer with the CEL light on or be able to demonstrate the problem to him. The tech would probably look forward to diagnosing a problem that requires using launch control.
Burning Brakes
Joined: Feb 2020
Posts: 1,003
Likes: 471
From: Nassau Co NY
If you are doing these steps, along with the wheel pointing straight ahead then there is something wrong elsewhere (as indicated by the check engine light). Go to the dealer to get the OBD code when the light is still on or check yourself using a compatible OBD2 scanner. My guess is a vacuum leak somewhere.
"The first step is to put the car in drive and select Track mode, then double-tap the ESC Off button just ahead of the mode selector ****. This will bring up the PTM menu on the instrument cluster and allow you to select which program you want with the mode selector ****. The programs are familiar—Wet, Dry, Sport I, Sport II, and Race—and the computer safety net shrinks as you go through them. It doesn't matter which you pick; launch control works in all of them and will give the best launch regardless."
"The first step is to put the car in drive and select Track mode, then double-tap the ESC Off button just ahead of the mode selector ****. This will bring up the PTM menu on the instrument cluster and allow you to select which program you want with the mode selector ****. The programs are familiar—Wet, Dry, Sport I, Sport II, and Race—and the computer safety net shrinks as you go through them. It doesn't matter which you pick; launch control works in all of them and will give the best launch regardless."
Thanks, JT
Drifting
Joined: Mar 2020
Posts: 1,569
Likes: 1,027
From: 31 hours East of Peoria, AZ
Safety Car
Joined: Jul 2019
Posts: 4,079
Likes: 2,414
From: Florida
Sport is recommended for no special prep.
If you're with heated tires on a sticky prep try race 1 and see how it does. If on drag slicks and prepped surface possibly even race 2.
Also make sure to use a real logger. The pdr will ghive readings that are literally all over the place up to a full second off. You may have run a faster 0-60 on a run and the odr could say you were .5 sec slower and vice versa.
If you're with heated tires on a sticky prep try race 1 and see how it does. If on drag slicks and prepped surface possibly even race 2.
Also make sure to use a real logger. The pdr will ghive readings that are literally all over the place up to a full second off. You may have run a faster 0-60 on a run and the odr could say you were .5 sec slower and vice versa.
Burning Brakes
Joined: Feb 2020
Posts: 1,003
Likes: 471
From: Nassau Co NY
Sport is recommended for no special prep.
If you're with heated tires on a sticky prep try race 1 and see how it does. If on drag slicks and prepped surface possibly even race 2.
Also make sure to use a real logger. The pdr will ghive readings that are literally all over the place up to a full second off. You may have run a faster 0-60 on a run and the odr could say you were .5 sec slower and vice versa.
If you're with heated tires on a sticky prep try race 1 and see how it does. If on drag slicks and prepped surface possibly even race 2.
Also make sure to use a real logger. The pdr will ghive readings that are literally all over the place up to a full second off. You may have run a faster 0-60 on a run and the odr could say you were .5 sec slower and vice versa.
https://www.loringtiming.com/ http://www.landracing.com/forum/inde...oard,33.0.html
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Drifting
Joined: Mar 2020
Posts: 1,569
Likes: 1,027
From: 31 hours East of Peoria, AZ
We don't record 1/4 mile times, it's a Land Speed Record track at the former Loring AFB in Maine. We time at the 1 mile & 1.5 mile mark on the 12,500 foot runway leaving plenty of runway to decel & turn off. Longest LSR track besides the Salt Flats. My non-Z51 coupe did 171 in the mile a few times. Going back up this summer with 10,000 more miles on the C8 to shoot for the 1.5 mile times. I think I can break 175.
https://www.loringtiming.com/ http://www.landracing.com/forum/inde...oard,33.0.html
https://www.facebook.com/loringtimin...46969965399582
https://www.loringtiming.com/ http://www.landracing.com/forum/inde...oard,33.0.html
https://www.facebook.com/loringtimin...46969965399582
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Safety Car
Joined: Jul 2019
Posts: 4,079
Likes: 2,414
From: Florida
We don't record 1/4 mile times, it's a Land Speed Record track at the former Loring AFB in Maine. We time at the 1 mile & 1.5 mile mark on the 12,500 foot runway leaving plenty of runway to decel & turn off. Longest LSR track besides the Salt Flats. My non-Z51 coupe did 171 in the mile a few times. Going back up this summer with 10,000 more miles on the C8 to shoot for the 1.5 mile times. I think I can break 175.
https://www.loringtiming.com/ http://www.landracing.com/forum/inde...oard,33.0.html
https://www.facebook.com/loringtimin...46969965399582
https://www.loringtiming.com/ http://www.landracing.com/forum/inde...oard,33.0.html
https://www.facebook.com/loringtimin...46969965399582
Apologies i was responding to the op who was asking about 0-60. The ptm mode does impact launch. For you i see the launch doesn't matter
Burning Brakes
Joined: Feb 2020
Posts: 1,003
Likes: 471
From: Nassau Co NY
Yup, the Maxton Mile is a shorter race course, but they go fast there also. We had a 300 mph cycle run at Loring. Last year we had a Ferrari & a Mustang 500 GT break 200 mph. We have a Super Car Class at Loring now that includes Corvettes & other late model sports cars. A good place to find out just what you & your car are capable of. Check it out.
Thread Starter
4th Gear
Joined: Feb 2022
Posts: 4
Likes: 0
When I’m doing a 0 to 60 I get everything all set foot all the way down on the brake fuel pedal all the way down also. The problem is when I let off the brake the car takes off and then takes a nose dive. I get a check engine light during this but goes off later in the day. Has anyone else come across this problem? I’m not home much during the week so I have to catch the dealership on the weekends.
Thanks to all that have an answer.
Thanks to all that have an answer.
Le Mans Master
Joined: Sep 2017
Posts: 5,767
Likes: 2,967
From: Rural NW Georgia. GO DAWGS!
2024 C8 of the Year Finalist - Unmodified
my wife took my C8 to the dealership today. Codes on the transmission came up. Don’t know exactly what they were, wife was so excited about driving the Corvette she didn’t remember everything the technician said. I’ll give them a call tomorrow, give them a chance to check it out better.