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04-08-2011, 07:34 PM | #1 |
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Are my tires ok for another HPDE?
Here's my front right tire after my 3rd HPDE last October (the left one is similar but not as bad):
I have driven about 22000 km or 13750 miles on these and have about 6mm depth front and 5mm depth rear. Am i okay for another HPDE? Will this pass tech? |
04-08-2011, 08:31 PM | #2 |
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That will be fine for another track day but it doesn't seem like those tires can handle the heat produced by autox or tracking, because the compound is disintegrating.
-Charles@VMRWheels
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04-09-2011, 09:38 AM | #6 |
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04-09-2011, 12:07 PM | #8 |
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I serve as the "final guy" on tech decisions at my events (event chair). I would pass you, no problem. As long as the tearing does not go into the surface of the tires, and remained on the treads, you should be fine.
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04-09-2011, 12:37 PM | #9 | |
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both my front tires has wear on the outside half of the tire from the lack of camber. am i helping/doing the right thing by bumping up the tire pressure? last event i ran 42 psi cold and got up to 48 psi hot. would lower tire pressure ease the wear and hopefully avoid chunking? i do have a set of brand new Potenza RE-01R sitting in garage but i am hoping not to use them until these wear out |
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04-13-2011, 06:09 AM | #10 |
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If you are talking about 20-30 minute sessions at HPDEs vs. short autocross runs, the tire pressure is way too high and the heat you are generating is likely causing the chunking. I would try and target closer to 39-41psi hot. You are going to get a little more roll onto the upper part of the sidewall, but that is primarily a camber issue.
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04-13-2011, 07:06 AM | #11 |
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Why not take your tires to a local shop that can "shave them" down for racing. I bet TireRack's website could point you in the right direction. That is what I would do.
You have some serious "heat chunking" going on there. |
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04-13-2011, 08:45 AM | #12 |
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Doesn't appear that there is much thread left on that tire. And I am not too sure that this type of tire would gain the same benefit as an R comp tire would from shaving. Added cost of shaving this type of tire might be spend elsewhere on some other more beneficial things.
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04-13-2011, 12:32 PM | #13 | |
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The reason why I went for 42 psi cold is the amount of roll and wear i get on the sidewalls of the tire. I don't feel confidence in cornering on the sidewalls of my tires. Camber plate is $500, install is $270 and alignment after is $110. A little steep for me considering I still need to pay $661 more in income taxes. |
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04-13-2011, 12:34 PM | #14 | |
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04-13-2011, 04:21 PM | #15 |
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yeah you'll be fine. just pay a little extra attention to how they look AND feel. could be easier for more chunks to come off now that the process has started
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