09-04-2019, 07:08 PM | #1 |
Drives: 2019 ZL1 1LE A10 Join Date: Nov 2018
Location: New York
Posts: 41
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ZLE TRACK Alignment Advice
I have had 2 track days on my ZLE and using the track alignment -2.7 front -2.0 rear....wore out the inside of the front tires very quickly. Would that imply that I am not aggressive enough in the corners?
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09-04-2019, 07:18 PM | #2 |
Drives: 22' Porsche PDK GT4 Join Date: Mar 2018
Location: Bay Area
Posts: 2,014
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What are your toe settings?
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22' Porsche PDK GT4 (MCS 2-way remote dampers) Previous: 18' NFG 2SS 1LE (ZL1 1LE solid rear cradle bushings & Corsa Exhaust) 16' F80 M3 (Ohlin R/T Coilovers) 13' Audi TTRS (APR Stage 1, MSS Springs) 09' C6 Z06 08' E90 M3 06' 335i (KW V2 Coilovers) 03' C5 Z06 |
09-04-2019, 07:48 PM | #3 |
Drives: 2019 ZL1 1LE A10 Join Date: Nov 2018
Location: New York
Posts: 41
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toe settings
I followed the recommended settings that GM provided for camber and toe
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09-05-2019, 06:37 PM | #4 |
Drives: ZL1 1LE Join Date: Oct 2016
Location: California
Posts: 1,297
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This is normal for the ZLE. Front tires will cord on the most inner part of the tire rather quickly. I only get around 6-8 sessions per front set of tires.
My guess is It's caused by a dynamic toe change during cornering. The inner, unloaded tire is essentially being dragged through the corner at an exaggerated toe-out causing excessive wear.
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09-05-2019, 06:52 PM | #5 | |
Drives: '19 ZL1 1LE Join Date: Feb 2019
Location: Miami
Posts: 128
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Quote:
Under what driving conditions? Track? Street? How many track days / miles on the road? |
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09-06-2019, 07:22 AM | #6 |
Drives: 2019 ZL1 1LE A10 Join Date: Nov 2018
Location: New York
Posts: 41
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I had 6 sessions at the track and 3000 miles on the road.
seanblurr's response My guess is It's caused by a dynamic toe change during cornering. The inner, unloaded tire is essentially being dragged through the corner at an exaggerated toe-out causing excessive wear makes sense to me as my braking has gotten more aggressive as I grew in comfort with this car. I reduced camber in the front to -2.4 just to see if that would help reduce wear. Thoughts?? |
09-06-2019, 08:16 AM | #7 |
Drives: 2019 ZL1-1LE A10 Join Date: Jan 2017
Location: Oklahoma
Posts: 512
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What tire pressure are you running?
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19 ZL1-1LE A10
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09-06-2019, 10:49 AM | #8 |
Drives: ZL1 1LE Join Date: Oct 2016
Location: California
Posts: 1,297
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I don't believe it is camber related at all, as tire temps are good across the board. You'll find some excess outer edge wear the more you reduce camber. I may actually increase over the recommended -2.7.
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09-06-2019, 11:31 AM | #9 |
Drives: 18 Black ZL1-1LE Join Date: Jun 2017
Location: Kennesaw, Ga
Posts: 201
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I run on the 3r goodyears at 36 lbs hot
-3.2 camber 7.7 caster -0.05 toe Wear is pretty even across the tire I also switch side to side between events |
09-06-2019, 02:31 PM | #10 |
Drives: 2019 ZL1 1LE A10 Join Date: Nov 2018
Location: New York
Posts: 41
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starting pressure 28-30, operating hot around 36. we will see, heading up to monticello motor club tomorrow for several sessions.
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09-06-2019, 03:15 PM | #11 | |
Drives: '19 ZL1 1LE Join Date: Feb 2019
Location: Miami
Posts: 128
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Quote:
Camber by itself isn't enough to wear the tire, it is camber plus the toe that'll chew up the insides. |
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09-06-2019, 06:28 PM | #12 |
Drives: 19 zl1 Join Date: Aug 2019
Location: Tx
Posts: 18
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fwiw i maxed out front camber and caster, roughly 3.5 negative, 7 caster, with about 1/8 total toe out. left the rears at 1.2 neg, basically 0 toe, maybe 1/32 toe in.
won events at road america and was fast in de at Cota like that, otw bone stock. so far wear seems even, even a bit worse on the outside edge of the fronts. i have been running about 34 hot, but had to put 220 tw goodyears on to make the 200 tw rules, so they are much less grip than the stock 100tw goodyears. |
09-07-2019, 05:41 AM | #13 | |
Thank you Al Oppenheiser!
Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017
Location: Sarasota, FL
Posts: 4,978
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