18 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
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YOUR RESEARCHTime for tires
Reported or suspected cause
sidewall separation
Reported cause
No successful repair reported for this finding.
1
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Read evidence and context
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Reported cause
Some ended-up with a shredded tire and other times it was caused by sidewall separation from the carcass.
Leading evidence: 'sidewall separation' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'sidewall separation' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Check tire pressure often' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Suggestion
On previous threads, a lot of people were recommending the Michelin Sport Cups.
Recommend tire in a recent pano article regarding 18" tires
Suggestion or failed attempt
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Suggestion
This was also the recommended tire in a recent Pano article regarding 18" tires.
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Suggestion
I also ran a deflating (maybe 15psi) Conti on my 996 about 1-2 miles and the inside of the sidewall was noticeably damaged, same idea.
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18 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
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looks like i will be in the market for tires by the end of the year. i have michelin pilot sports now. i haven'nt really had any problems or any complaints. they ride a little loud, road noise could be less. any other suggestions that i should be evaluating before i make my choice.i am a moderately aggressive driver and do not track the car at this time.
thanks
Doug,
Hardly noticeable. I've heard some Boxster folks say they have some road noise but that must be a difference is car weight and weight balance. I don't really notice them on my 996.
</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by Carlos from Spain:
<strong>SO3's.
Waz, I personally liked the S02's better than the S03's but they lasted me a lot less than the S03's
</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Carlos, you're only getting older!!!
Waz
Which Michelin Pilot sports were you running?
The N0 is noisier (but better), and the N1 with a more traditional tred pattern was redesigned to reduce the noise.
IMO, stick with the Michelins.
I recently put Potenza S02's on my C2 Cab and love them. One question about the S03's. Do they have an N designation? I have gotten conflicting opinions on that. Tirerack says no. Another dealer said yes. That's why I chose the S02's over the S03's this time.
The reason I ask is that I've had very bad results with tires that were not N rated as Porsche recommends (two blowouts on the rear tires with just standard street driving).
</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by uplarry:
<strong>One question about the S03's. Do they have an N designation? I have gotten conflicting opinions on that. Tirerack says no. Another dealer said yes. That's why I chose the S02's over the S03's this time.</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">No. They're not approved by Porsche.
</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica"><strong>The reason I ask is that I've had very bad results with tires that were not N rated as Porsche recommends (two blowouts on the rear tires with just standard street driving).</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">That should not happen because they are not Porsche approved. N-specific tires do NOT guarantee againts blowouts or defects. I've had quite a few blowouts with some serious Porsche approved tires too.
That's scary that these tires blow out with street driving. Viken and UpLarry, would you share the circumstances that led to a blow out? For instance, how fast were you driving/going through corners/etc. Thanks,
Low profile ratio ultra-performance are especially prone to two similar types of mysterious failures that cause sidewall blowouts at a later time.
One is significant road impacts such as deep potholes taken above 25-30 mph, and other is from running the tires significantly underinflated. In either case the damage and the failure are not necessarily close together in time or location.
The inside membrane in the tire is compromised, and air seeps into the rubber causing the failure.
Had one of these just a few weeks ago on a Pirelli Scorpion 255/55, the impact was clearly visible inside the tire about 9" away from the eventual sidewall blowout. I also ran a deflating (maybe 15psi) Conti on my 996 about 1-2 miles and the inside of the sidewall was noticeably damaged, same idea. Cupped pieces of crap anyway, nail did me a favor, stay with Michelin or Bridgestone.
FWIW if you drive really fast think twice about patching tires with heat resistence ratings of "V" or better. The manufacturers uniformly and expressly forbid it (the glue). And NEVER try to patch a sidewall puncture.
Interesting read.
On previous threads, a lot of people were recommending the Michelin Sport Cups. However, I believe the context of the recommendation was for track tires that were street legal and street usable. This was also the recommended tire in a recent Pano article regarding 18" tires.
Am I correct in assuming that for the mostly street car, the recommendation is for the S03's due to less road noise? For the track car used on the street, the recommendation is for the Mich Sport Cups?
</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by Arthur:
<strong>Viken and UpLarry, would you share the circumstances that led to a blow out? For instance, how fast were you driving/going through corners/etc. Thanks,</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">My blowouts have all been at L.A. freeway speeds (~65-70 mph) and in straight lines. Some ended-up with a shredded tire and other times it was caused by sidewall separation from the carcass.
</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica">Originally posted by Arthur:
<strong>That's scary that these tires blow out with street driving. Viken and UpLarry, would you share the circumstances that led to a blow out? For instance, how fast were you driving/going through corners/etc. Thanks,</strong></font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">Just to avoid misinformation, I did not mean to imply that the S03's had blowouts. I have not tried those. My previous tires were Kumho Ecsta 712's (17 inch stock wheels). I went cheap on the theory that even if they wore down twice as fast as more expensive tires I was still coming out ahead.
But, I was thinking along the lines of tread wear, not tire failure. Both of my rear Kumho tires had sidewall failures after about 7,000 miles of pretty easy street driving. I do not drive very aggressively (waiting for a point to be removed from my license :-).
The first tire blew out at about 60 mph on straight highway driving. I was just entering the freeway and accelerating up to speed when it happened.
I will take some responsibility for the second failure though since it was noticed that my tires were underinflated. I noticed some vibration coming from the rear. While inflating the rear tire, it blew out (bubble in the sidewall).
So the lessons I've learned are:
1) Check tire pressure often! I was not used to low profile tires and didn't know you can't really tell by looking at them that they are underinflated since the sidewalls are so stiff.
2) I will always use Porche approved tires from now on. Hopefully by the time I need new tires, Porche will have approved the S03's (the longer tread life is very attractive).
This is a source reference. Confirm exact model applicability in the original material.
