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Old 04-28-2003, 12:09 AM   #1
Scooby Specialist
Member#: 11571
Join Date: Oct 2001
Chapter/Region: MAIC
Location: Virginia Beach, VA
Question Worn tires after auto-x

Well, I got back from my first auto-x today and damn it was fun. Quite a bit different from my last rally-x. Anyways, the outside edge of my right front Kumho is badly worn. This tire took most of the abuse throughout the day. The other 3 are slightly worn but nothing like this one. Is there anything I can do to help this out. I'm about to get Prodrive springs installed so I'm gonna get the tires rotated too. I'm guessing that's all I can do.

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Old 04-28-2003, 12:23 AM   #2
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Join Date: Jun 2002
Chapter/Region: South East
Location: Clearwater, FL
2000 old skool RS


put more air in 'em next time!
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Old 04-28-2003, 01:06 AM   #3
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Chapter/Region: MAIC
Location: Fairfax, VA

Wouldn't be a bad idea to have the alignment checked too, and see what the camber was in that wheel. Some shops will do alignment checks for free.

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Old 04-29-2003, 12:18 AM   #4
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Location: Saint Paul, MN
'08 WRX
Dark Gray



1. Get alignment checked/set - have the shop get you as much negative camber as possible in the front. Unless you have camber plates, this should be approx. -1 degree or a little more.

2. rotate the tires - front to back.

3. use more air pressure next time - I'd start with at least 45lb in the front and 43lb in the back. Chalk the tires, so you can tell if they're rolling over past the edge of the tread (look for little triangles on your tires, marking the tread edge).

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Old 04-29-2003, 11:32 AM   #5
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Join Date: Jul 2002
Chapter/Region: TXIC
Location: Austin, TX
02 WRX Wagon
Sedona Red


There was a thread in our local autocross club, (www.spokes.org) a while back about Kuhmo tires needing to be shaved before using them in events like autocrossing.

Check with Luke at Tirerack I believe he knows about this....
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Old 04-30-2003, 09:44 AM   #6
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2004 SVT Focus
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You might also try adjusting the nut behind the wheel for the next event.
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Old 04-30-2003, 12:42 PM   #7
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Chapter/Region: MWSOC
Location: Carol Stream, IL
2002 S2K - 2013 ISP
i don't have a wrx


i dunno what size or type of kuhmo your running, but like the others said, try running more pressure in them next time, rotate them, etc. With that being said, I did experince a lot more wear on the outer edge with my kuhmo 712's (215/45/17) from last season, i think those tires just tend to wear the outer edge more severly.
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