10-09-2021, 07:14 AM | #1 |
Drives: 2018 ZL1 Join Date: May 2021
Location: Texas
Posts: 21
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1/8 mile time help
I went to the track last night and did a personal best but still did not get to my goal of getting into the 6s. Trying to figure out what I might be doing wrong. I am using launch control set to 1900 rpm and slip at 7.5%. If I change either of those to parameters I go slower. So I feel like that is correct for my car.
My car has a roto fab, 1 7/8 headers, alky control kit, MT et Street r, tune. It is an A10. Any suggestions are welcome. |
10-09-2021, 08:00 AM | #2 |
Is your TCM tuned? That made 2 tenths difference on my car. I also turn off all of the nannies when I drag race, no traction control and no stabilitrac and put your suspension in touring mode.
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2018 ZL1-NFG-A10
New Iron L8T 9.32 147MPH |
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10-09-2021, 09:12 AM | #3 |
Drives: 2018 ZL1 Join Date: May 2021
Location: Texas
Posts: 21
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My tcm is not tuned. I had asked the tuner to tune it when he did the ecm but said it wasn't necessary until I added more boost. I didn't think that made any sense but who am I. I thought that might be my issue.
I have the car in track mode with everything turned off using the launch control in the car. |
10-09-2021, 09:26 AM | #4 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,793
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Use Touring mode with all nannies off. it's the fastest of the 3 modes for drag racing.
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2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
10-09-2021, 01:02 PM | #5 |
Drives: 2018 ZL1 Join Date: May 2021
Location: Texas
Posts: 21
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Really? Ok. I'll give that a shot. Can you use the launch control in touring mode or do you just have to foot brake it?
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10-09-2021, 03:10 PM | #6 |
Drives: 2016 1SS NFG A8 Join Date: Aug 2017
Location: 46804
Posts: 6,793
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You don't want to use launch control. That shit was designed around stock power on stock tires. Foot brake it.
__________________
2016 NFG 1SS A8
Options-2SS Leather/NPP Perf. mods-Whipple 2.9/Fuel System/Flex Fuel/103mm TB/Rotofab Big Gulp/Cat Deletes/Corsa NPP Per. times- 10.5 @ 137 w/ 1.8 60ft Full weight on 20's 1200DA |
10-09-2021, 06:59 PM | #7 |
Drives: 2020 Rally Green ZL1-1LE Join Date: May 2020
Location: Illinois
Posts: 320
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10-09-2021, 08:52 PM | #8 |
Drives: 2018 Camaro ZL1 Join Date: Aug 2018
Location: Georgia
Posts: 1,366
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Don't use launch control, put the suspension into tour (weight transfer is better because of the softer setting) and leave everything else in sport or track.
Foot brake to 1700 or so. The launch control in this car is crap no matter if you're stock or not. Tuners who don't want to tune the TCM more than likely don't know what they are doing. People swear up and down tuning the TCM is a night and day difference even if the only mod is that on a stock car. |
10-09-2021, 10:58 PM | #9 |
Drives: 2018 ZL1 Join Date: May 2021
Location: Texas
Posts: 21
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Great. I will try foot braking and touring mode next time I'm at the track. Also need to get the tcm tuned. Thanks for the help.
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