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2700 miles and my rear SO-3s are shot...

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Old 02-16-2004, 10:07 AM
  #16  
Ray Calvo
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Something screwy. I have US M030 shocks/sway bars with Euro springs on my '95 993 C2. Following is what I've gotten for rear tire wear:

original (Yokohama?) 12K miles
BFG Comp T/A 20K miles
Brigestone RE730 13K miles (twice)

Am now running Bridgestone RE750; very happy with them.

RE alignment: have brought a copy of the factory alignment specs into the shop and told them to align to these specs.
Old 02-16-2004, 12:25 PM
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Fishey
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I have my alignment done by Bill Braucksick, at performance alignment.

I also have my tires with alittle more Negitive Camber for better handling in my 944 I still manage 10k between tire changes. Here is a picture of my fully warn out Dunlop SP5000 Sports.. (BEST TIRES EVER)

Not for the 56kers!
http://www2.go-concepts.com/~fishey/101-0137_IMG.JPG
Old 02-16-2004, 12:25 PM
  #18  
911-TOUR
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Car is aligned to factory specs (within tolerances, allowing for corner balance)...talked to Bridgestone this morning (at the suggestion of Tirerack), they think it could be a bad lot of tires -- I'm taking them into a local store for them to diagnose for sure.

sean
Old 02-16-2004, 12:25 PM
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cfdarch
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Sean

my first rear set of S-03's lasted 10.5Kmi. they have another 2.5Kmi. left but I made a 5Kmi trip to LA this past summer so I replaced early. My new set has 10.5Kmi now...and @ the current rate of wear I'm expecting 17-18Kmi. The rears also have two autocross days w/ 2 drivers each time. BTW my fornts are on track to last 28Kmi....Of course this calculus might be false but it does present a ballpark experience.
Old 02-16-2004, 01:10 PM
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Tom W
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I have over 10k on my SO3s on the cab which has RS alignment specs.
Old 02-16-2004, 02:04 PM
  #21  
mac993
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Just to thorw in my $.02, I have 7500 miles on my M030 lowered '96 w/ S0-3's and they hardly look worn. I'm hoping to get another 10k.
Old 02-16-2004, 06:19 PM
  #22  
911-TOUR
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Pictures! Can be viewed at:

http://homepage.mac.com/saspicer/PhotoAlbum7.html

Let me know what you think!

sean
Old 02-16-2004, 06:21 PM
  #23  
911-TOUR
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One more note, I looked it up, and my previous set of SO-3 rears got only 4800 miles!

sean
Old 02-16-2004, 06:25 PM
  #24  
fbfisher
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One issue not yet mentioned - low air pressure will chew through tires quick.
Old 02-16-2004, 07:46 PM
  #25  
swftiii
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Sean,

Good luck with the diagnostic and let us all know what you turn up.

-Skip
Old 02-16-2004, 07:57 PM
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Robert Henriksen
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Looks more like high pressure to me. From what I can tell in the pictures, it's the wear bars in the two center grooves that are flush w. the tread. The outer two grooves look like the wear bars aren't yet flush w. the tread.

I don't know the difference between the depth of the inner & outer grooves, whether they're significant enough to account for the majority of the accelerated wear. But biasing the pressure & wear on the center portion of the tread face ought to account for at least some of the accelerated wear.

I don't know what pressure the tires have been run at, either, so whether what appears to be wear more in the center was caused by pressure or tire defects is up to somebody else...
Old 02-16-2004, 11:39 PM
  #27  
911-TOUR
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Tire pressures are carefully kept at 34 front, 36 rear...as per the board consensus... The pictures don't really do it justice, the center looks more worn than the edges in them. However, it's worn fairly even across the tread < 1mm difference.

sean
Old 02-16-2004, 11:57 PM
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poorb0yw
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Sean. Don't seem to be getting your PM. I guess it might be better to try sending the message to me via e-mail. poorb0yw@hotmail.com
Old 02-17-2004, 02:48 AM
  #29  
Bruce SEA 993
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As another data point I have 6500 miles on the SO-3s with mostly highway (including a fun filled high speed drive to and in Montana). I run 34/36 psi and have only one DE under my belt with these tires. They still look like they another 5000 on them.

The sad thing is I had them put on on Sept 11....yeah, that day. I just don't drive enough!!!!! Dang, too much day job work and other "work" after work and on the weekends. Gotta get these projects finished and not start any new ones.

Good luck figuring it out!



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