Inner Tire Wear on Track

cmfhsu · 06-09-2021, 07:59 AM

I'm getting some extreme wear on the inner 2 inches of my front tires only. I've got maybe 2mm until the bottom of the tread depth punches on the outer edge & 2mm until the tread in the middle of the tire completely disappears. On the inner edge, though, I'm about to hit cords, I think. The tread depth punches on the inner edge are completely gone.

I've been a little under-inflating because my trusty pressure gauge started wandering, but I find it unusual the insides of my tire are wearing faster than the outside, considering I drive 80%+ on track with this car these days. Will post pictures this afternoon once I can grab them off the car.

Any ideas?

Setup:
Goodyear SC3
GM Track Alignment, 2 deg camber & 0 deg toe in front (aligned last year, maybe it needs a new one)
Rear cradle lockout
No other mods - completely stock brakes, suspension, engine, etc.

Edit: As a rough gauge of my driving behavior, I'm running the track alignment 1.5 deg camber & .1 deg toe in the back & I need another .5 deg of rear camber or so. I'm still wearing the outer half of my tread faster than the inner by a fairly large degree.

WhiteMale · 06-09-2021, 08:16 AM

Id say def need to get it on the rack, the toe could be out.

TheRealJA105 · 06-09-2021, 08:33 AM

You didn't list front camber?

cmfhsu · 06-09-2021, 08:47 AM

Quote:

Originally Posted by TheRealJA105

You didn't list front camber?

Apologies - added. It's the GM track alignment specs.

weemus · 06-11-2021, 04:02 PM

Check your toe. Have the shop run the current alignment numbers when you get new tire before resetting.

Also many have switched to zero toe in the front coupled with max camber adjustment on the oem knuckle (~ -2.6ish). Tire wear is actually improved.

06-09-2021, 07:59 AM	#1
cmfhsu Drives: 2019 2SS 1LE Join Date: Aug 2019 Location: CT Posts: 112	Inner Tire Wear on Track I'm getting some extreme wear on the inner 2 inches of my front tires only. I've got maybe 2mm until the bottom of the tread depth punches on the outer edge & 2mm until the tread in the middle of the tire completely disappears. On the inner edge, though, I'm about to hit cords, I think. The tread depth punches on the inner edge are completely gone. I've been a little under-inflating because my trusty pressure gauge started wandering, but I find it unusual the insides of my tire are wearing faster than the outside, considering I drive 80%+ on track with this car these days. Will post pictures this afternoon once I can grab them off the car. Any ideas? Setup: Goodyear SC3 GM Track Alignment, 2 deg camber & 0 deg toe in front (aligned last year, maybe it needs a new one) Rear cradle lockout No other mods - completely stock brakes, suspension, engine, etc. Edit: As a rough gauge of my driving behavior, I'm running the track alignment 1.5 deg camber & .1 deg toe in the back & I need another .5 deg of rear camber or so. I'm still wearing the outer half of my tread faster than the inner by a fairly large degree. Last edited by cmfhsu; 06-09-2021 at 08:46 AM.

06-09-2021, 08:33 AM	#3
TheRealJA105 Drives: 2013 C6Z06 Join Date: Nov 2016 Location: PA Posts: 1,577	You didn't list front camber? __________________ Old Ride: 2016 Callaway SC630 Camaro SS

06-09-2021, 08:16 AM	#2
WhiteMale Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020 Location: MO Posts: 1,982	Id say def need to get it on the rack, the toe could be out.

06-11-2021, 04:02 PM	#5
weemus Drives: 2017 1SS 1LE Join Date: Dec 2019 Location: Charlotte, NC Posts: 167 View My Garage	Check your toe. Have the shop run the current alignment numbers when you get new tire before resetting. Also many have switched to zero toe in the front coupled with max camber adjustment on the oem knuckle (~ -2.6ish). Tire wear is actually improved.

User Name		Remember Me?
Password