12-05-2021, 05:00 PM | #1 |
Drives: 2017 ZL1 Camaro Join Date: Nov 2021
Location: Maryland
Posts: 51
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Straight acceleration question.
Hello, I'm coming from a 86 Mustang with a spool and a performance posi. My 17 ZL1 A10 pushes left when I'm just doing a straight 3rd to 4th pull under mild to heavy acceleration. I assumed that the eLSD would be more locked when straight. Is this normal for these cars? The mustang always went straight unless I broke traction.
Thanks for any advice. |
12-05-2021, 05:11 PM | #2 |
Account Suspended
Drives: 2017 Camaro ZL1 A10 Join Date: May 2012
Location: NJ
Posts: 7,692
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Is it used or did you buy it new in 2017? If it is pulling then that indicates an alignment issue or something with the steering.
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12-05-2021, 05:19 PM | #3 |
Neptune_ZL1
Drives: 2019 A10 zl1 Join Date: Jun 2019
Location: Naples Fl
Posts: 10
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Alignment 100%, when i picked up my 19 A10 i had the same issue. Did an alignment and it was gone
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12-05-2021, 05:50 PM | #4 |
Drives: 2023 Black ZL1 Auto Join Date: Oct 2009
Location: FEMA Region 4
Posts: 2,934
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There is a BMR cradle lockout kit that has stiffer bushings you can install. The rear diff bushings flex under load. The 1LE also has stiffer bushings. If you do a search on BMR there’s a lengthy topic about left to right under acceleration and how to address it.
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12-05-2021, 06:14 PM | #5 |
Drives: 2021 Red Hot ZL1 Join Date: Sep 2020
Location: Gapplebees
Posts: 3,050
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I've heard of this issue mostly on earlier model ZL1s so I don't know if its an issue that comes after some mileage but it does seem that the BMR cradle lockout kit solves it. My 2021 barely had 1500 miles on it when I installed the cradle lockout kit so I can't say if it would have ever developed this issue but I don't have it at all.
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12-05-2021, 06:24 PM | #6 |
I have a ZLE M6, pushing over 700whp, tires break loose, but the car tails depending on the pitch of the road, which most of the time means the ass goes right. In an even road, it tracks pretty straight when spinning.
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12-05-2021, 07:05 PM | #7 |
Drives: 2017 ZL1 Camaro Join Date: Nov 2021
Location: Maryland
Posts: 51
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Thank you all for the input. It actually pushes, like the passenger side wheel is pushing harder than the driver side. I know it's not spinning as I roll into the throttle and not to WOT.
It is used, only 10k miles in it. It brakes straight and rolls straight, normal acceleration is straight and I know the feel of the road unevenness, coming from a manual rack wide tire foxbody,it's definitely not that. |
12-06-2021, 10:21 AM | #8 |
Petro-sexual
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Like was suggested - I'd try an alignment first.
I just completed a lot of rear suspension mods', but haven't gotten many chances to drive the car much since. I'll report back after I get more seat time. I really had problems on DRs, which was the purpose for my mods', but it's a little cold now. If the alignment doesn't change it, like was, again, already posted, I'd look into at least some cradle lock-outs. If you've ever seen the voids in the OEM bushings, I'm sure you'd come to a similar conclusion on why this is a good mod'. JMO.
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12-06-2021, 06:22 PM | #9 |
Geoff
Drives: 2020 ZL1 Green Join Date: May 2013
Location: Houston
Posts: 1,718
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One more thing
since it's used, verify tire sizes are the same - left to right and check tire pressures (check the fronts too). Since it drives straight, normally, tires are most likely ok, but good to check. Otherwise, get it aligned.
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12-06-2021, 07:23 PM | #10 |
Drives: 2018 Hyper Blue ZL1 1LE Join Date: Dec 2018
Location: CA
Posts: 1,360
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Ted Jannetty had this problem when he got his ZL1, he has a ton of experience with many ultra high power muscle cars. He checked alignment and all other potential problems and isolated an issue with his tires which appeared fine.
He replaced the tires and the issue went away. |
12-06-2021, 10:12 PM | #11 |
Thank you Al Oppenheiser!
Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017
Location: Sarasota, FL
Posts: 4,966
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Alignment by a competent shop, then tires.
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12-07-2021, 01:14 PM | #12 |
Drives: 2017 ZL1 Camaro Join Date: Nov 2021
Location: Maryland
Posts: 51
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Thanks all.
The tires look ok and PSI is even. I ordered the lockout kit and have the car going into the dealership for state inspection. I will have them check the alignment and flash the eLSD with the drag mode update. If the alignment is out I will install the lockout kit first then get it aligned. |
12-07-2021, 02:26 PM | #13 | |
Drives: 2018 Hyper Blue ZL1 1LE Join Date: Dec 2018
Location: CA
Posts: 1,360
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Quote:
There was no visible sign of an issue, they were defective in some strange way causing this dangerous control issue at WOT. Only way to diagnose if it's the tires is to get it aligned, and then if it doesn't go away swap tires. I have not heard of an eLSD software version causing this. |
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12-07-2021, 08:01 PM | #14 | |
Account Suspended
Drives: 2017 Camaro ZL1 A10 Join Date: May 2012
Location: NJ
Posts: 7,692
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