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Weird Tire Wear, educated opinions?

I've been noticing some abnormal wear on my front RE-11s. I'm hoping some of the knowledgable community members might have some ideas/suggestions. There are two wear patterns I'm noticing. First,

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Old 06-25-2011, 09:21 PM   #1 (permalink)
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Default Weird Tire Wear, educated opinions?

I've been noticing some abnormal wear on my front RE-11s. I'm hoping some of the knowledgable community members might have some ideas/suggestions. There are two wear patterns I'm noticing.

First, there is a lot of wear on the outer sidewall/tread junctions. It looks slightly scooped out like 'cupping' but it's consistent all the way around the tire.

Second and more noticeable, the outer tread blocks have heel-toe wear. If you look at the tread blocks on the top of the driver's side tire, the blocks are higher toward the front of the car and lower toward the back. I'm wondering if I overheated the tires on my track day and heavy braking deformed the tread. I never noticed this wear prior to my track day in 95F weather.

What do you guys think? I'll try to post some pics, but it's difficult to convey in photos.
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Old 06-25-2011, 09:30 PM   #2 (permalink)
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Umm limme see piks?
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Old 06-25-2011, 09:40 PM   #3 (permalink)
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It's fine, my 265 had the same wear
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Old 06-25-2011, 10:17 PM   #4 (permalink)
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I'm gonna swap the fronts in the AM before my autoX event.
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Old 06-25-2011, 10:29 PM   #5 (permalink)
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Is it only fronts or all the way around?
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Old 06-26-2011, 06:34 AM   #6 (permalink)
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Quote:
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Is it only fronts or all the way around?
Just the fronts. Rears look great.
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Old 06-26-2011, 10:15 AM   #7 (permalink)
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Check out this site:
How to read tire wear
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Old 06-26-2011, 10:54 AM   #8 (permalink)
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Pics, pls.
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Old 06-26-2011, 01:44 PM   #9 (permalink)
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Sounds like you're wearing the outside shoulder because of the limited camber in the front. The cupping could be a sign of a weird toe setting though.
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Old 06-26-2011, 04:28 PM   #10 (permalink)
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Cupping isn't caused by toe. Cupping isn't very common compared to toe or camber issues. Usually it's from a WAY out of whack balance, pos tires or blown shocks/struts.

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Old 06-26-2011, 04:31 PM   #11 (permalink)
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need to see pics. First is likely from overdriving camber settings, or really bad alignment.

Is the second like a front-t0-back feathering?
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Old 06-26-2011, 06:54 PM   #12 (permalink)
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Definitely from lack of camber on the road course HPDE. Yep, the heel-toe is front to back feathering. After my autocross today, the wear pattern has started to normalize. I think the stock suspension just brutalizes the front tires on track days. I don't really have cupping, but the extreme outside tread border where it meets the wall has a pink finger width of grooving. I'm wondering if it's due to rolling over onto the stiff sidewall on the road course.
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Old 06-26-2011, 07:05 PM   #13 (permalink)
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my tires did the same thing on my vw... it might be a little to do with spacers... mine never did it for 60k and then bam wierd *** tire wear and i had the same 20m back but 10 up front
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Old 06-26-2011, 09:31 PM   #14 (permalink)
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Quote:
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my tires did the same thing on my vw... it might be a little to do with spacers... mine never did it for 60k and then bam wierd *** tire wear and i had the same 20m back but 10 up front
Hmmm. I can't see how properly installed spacers would do it. They don't change anything other than track width.

I'm suspecting it's mostly effects of geometry changes during track days. I'm wondering if there may also be an element related to the tire width on the front. I'm running 265 on the stock sport wheels. I could see how squeezing some tires on smaller than ideal rims could lead to altered tire shape and wear patterns. I didn't think 265 was out of spec though.
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Old 06-26-2011, 09:51 PM   #15 (permalink)
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Definitely from lack of camber on the road course HPDE. Yep, the heel-toe is front to back feathering. After my autocross today, the wear pattern has started to normalize. I think the stock suspension just brutalizes the front tires on track days. I don't really have cupping, but the extreme outside tread border where it meets the wall has a pink finger width of grooving. I'm wondering if it's due to rolling over onto the stiff sidewall on the road course.
Hm. The F/R wear is usually on older cars when I've seen it. My 540i had issues with it around 200,000 miles due to worn out bushings. I'd guess the stiffer sidewall might be pushing the suspension a bit harder. Are you on stock suspension?
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