12-26-2021, 08:38 PM | #1 |
Drives: 2016 2SS blue velvet w/blk stripes Join Date: Sep 2017
Location: Tulsa, OK
Posts: 43
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Rear camber for aftermarket tires
I got 315/30s on the back on 20 inch wheels and seems like the outer edges barely touch the ground even with 28 psi of air. Whats a good camber setting for wider than stock tires? Andy advice appreciated!!
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Current mods. Rotofab CAI, Speed Engineering Long Tube Headers and plug wires w custom tune. Shock tower brace, ground effects, OEM brake air ducts and splash gaurd delete, 275/315 tires on 10 and 11 inch MRR wheels.
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12-26-2021, 10:38 PM | #2 |
Drives: 2019 2SS Camaro Join Date: Apr 2012
Location: Al
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Are they on a 9.5 rim?
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12-26-2021, 10:51 PM | #3 |
Drives: 17 2SS, 8L90, Cam, Heads, E85 Join Date: Dec 2016
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I know this doesn't really apply to you but I wanted to get a better camber. I figured it could maybe help with a better contact patch to get more towards zero camber.
When I tried though (at least the one doing my alignment) with the stock suspension and tire setup I could only get to -0.9 on both sides. I know traction is a weird subject, but not sure how much camber effects it but I would think it could help. I know creating more contact patch through a larger diameter tire supposedly helps straight line traction better than increasing width, but I believe the opposite for lateral traction. So I guess your optimal camber setup depends on what you are trying to optimize for, like road racing or drag racing or tire life. |
12-27-2021, 10:29 AM | #4 |
Drives: 2016 1ss camaro Join Date: Feb 2016
Location: 909
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i have -2.5 rear camber but i have adjustable suspension now what are you trying to achieve?
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12-28-2021, 08:48 AM | #5 |
Drives: 2018 1SS 1LE Join Date: Apr 2018
Location: Mpls, MN
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i had -1.6* and had nice, even wear across the rear tires.
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12-28-2021, 05:38 PM | #6 | |
Drives: 2021 LT1 10 speed auto Join Date: May 2013
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12-29-2021, 02:33 PM | #7 | |
Drives: 2024 Riverside Blue 2SS 1LE Join Date: Mar 2016
Location: Fort Wayne, IN
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12-29-2021, 04:33 PM | #8 | |
Drives: 2021 LT1 10 speed auto Join Date: May 2013
Location: Connecticut
Posts: 2,344
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01-05-2022, 04:30 PM | #9 |
Drives: 2016 2SS blue velvet w/blk stripes Join Date: Sep 2017
Location: Tulsa, OK
Posts: 43
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Was hoping for best 60ft times at the drag strip. The wheels are 20x11 with 315s.
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Current mods. Rotofab CAI, Speed Engineering Long Tube Headers and plug wires w custom tune. Shock tower brace, ground effects, OEM brake air ducts and splash gaurd delete, 275/315 tires on 10 and 11 inch MRR wheels.
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01-05-2022, 04:35 PM | #10 |
Drives: 2021 LT1 10 speed auto Join Date: May 2013
Location: Connecticut
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01-05-2022, 07:52 PM | #11 |
Drives: 17 2SS, 8L90, Cam, Heads, E85 Join Date: Dec 2016
Location: US
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I made it about 12k with this 275/35 stock size Nitto NT555R2 on the back with the camber as flat as they could supposedly get it at -0.9 degrees on both sides. You can see it is still wearing way bad on the inside:
So it appears we are at the limit of the suspension geometry, and we may have to change to a aftermarket upper control arm to get closer to zero in the rear? By the way, the fronts (I can't remember what the camber was set at in the front, I think the stock setting though) were showing the cords on the inside it was wearing so bad on the inside from the camber. This was on Nitto NT05 regulars not R compound that are 200 tread ware I think. |
01-05-2022, 08:22 PM | #12 |
Drives: 2019 Camaro Z-28 Join Date: Jul 2010
Location: Dallas
Posts: 1,486
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alignment
What wears your tires out the FASTEST is to have too much TOE IN or TOE OUT. If you rub Toe In Toe OUT settings around NEUTRAL then you can run some pretty aggressive camber settings.
Below I was running these settings on BOTH the track and for daily driving. I wasnt getting any abnormal wear so I since have adjusted the FRONT camber to -3.5 degrees and still no excessive wear, I have SPL Toe Rods so that I could get MORE than -2.0 on the rear. I also have VORSHLAG camber plates to get the -3.5 degrees FRONT camber. For daily driving I have MS 305 30 19 tires on APEX 19 x 10.5 wheels. For the track I run Pirelli slicks 305 660 18 on APEX 18 x 11 rims
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01-05-2022, 08:53 PM | #13 | |
Drives: 17 2SS, 8L90, Cam, Heads, E85 Join Date: Dec 2016
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Do you think increasing camber more towards zero in the back, considering not caring about cornering performance and only straight line, will help that much with straight line traction? I would also think having the slight negative (-0.9 degrees) may get more right as you get squat and weight transfer though? So maybe it gets more flat when the rear squats? |
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01-05-2022, 09:28 PM | #14 |
Drives: 2020 SS 1LE Join Date: Aug 2020
Location: NorCal
Posts: 687
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I think you generally get more rear contact patch when it’s squats during launch because there’s shift in weight. That said, the more a corner is compressed, the more negative camber it creates… at least that’s my understanding.
So if you’re only about 1/4 runs and want more contact, it does makes sense to get closer to 0 camber. |
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