Last post on Sep 30, 2011 at 9:56 PM
You are in the Porsche 911
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Porsche 911, Tires, Coupe, Convertible
#2 of 49 tire wear
Mar 08, 2007 (7:33 pm)
Guys, check the inside edges of the rear tires. the amount of neg camber on the rears will hardly produce any wear on the out visible edge but strip the inside bald pretty quickly. i too once thought i would be able to forego the expense of new tires every 10-12K miles but i learned otherwise one day when i lifted my car up in the air and discovered teh inside edge was showing cords.
now the fronts, i usually can get atelast 15K if not 20K out of them, rears - the best i ever got was 12K....and this is sampling with 3 different porsches. don't even get me started on the 20" cayenne tires - ugh
#3 of 49 Re: tire wear [chile96]
Mar 09, 2007 (4:45 am)
Appreciate the heads up on the greater inside edge wear, but when I had my car in for a 1 year, 10,500 mile service, the dealer claimed that I had at least 60%+ treadlife left on the rears then. We looked at all of the tires with the car up on the rack. Also, he wasn't saying 60% left until they were dangerously low on tread, but rather where he would replace them for performance. Using my fingers as a guage (highly scientific, I know), the tread depth at 10k+ miles was at least 75% of a brand new car.
I haven't taken the car to a track and a fair amount of my mileage is highway, so perhaps I'm just being easier on the tires than the average 911 owner.
Also, chromedome - I'll give you credit for self discipline. I find my 911 to be such a "friendly" driver, that it's taken 3/4 of my miles over the last year and my Acura TL 6-speed barely 1/4. My two daughters have logged substantially more miles in the back seat than you have on your car in total.
#4 of 49 Re: tire wear [habitat1]
Mar 09, 2007 (9:55 am)
Also, chromedome - I'll give you credit for self discipline. I find my 911 to be such a "friendly" driver, that it's taken 3/4 of my miles over the last year...
When we all make that choice between our different vehicles as to which car we'll drive, it's often hard to turn down the Porsche. As you said, it is "friendly". I'll add "fun" to the mix.
For me, when the weather is nasty, I notice that I'm less likely to take the Porsche. But living in California, most days are nice, so the Porsche gets the nod, and quite often the top goes down.
And there is definately something to be said for those back seats, cause when the kids are a factor, the 911 still delivers.
#5 of 49 Re: tire wear [habitat1]
Mar 12, 2007 (4:41 am)
I am not sure where you drive your Carrera 2s or on what tires, but mine used to do 6k miles on the back and 20k on the front with Continentals. In an attempt to stem the money drain, I have switched to Bridgestones and I might get 10k on the back. I can tell no difference at all on the wet or dry handling or ride. Anybody got any better ideas?
#6 of 49 Re: tire wear [mikejg]
Mar 12, 2007 (3:04 pm)
My 2006 C2S has pzeros, and with 5000 miles, they hardly look worn at all. Should have a better idea as to how they hold up sometime this summer.
#7 of 49 Re: tire wear [mikejg]
Mar 13, 2007 (3:42 am)
I rechecked my rear tires over the weekend with the highly sophisticated, "stick your fingers in the grooves" method of gauging tread depth. I have the original Pirelli P-Zero's (235/35 front, 295/30 rear) with 12,400 miles.
The good news is that I have what appears to be very even tire wear. No difference in depth inside vs outside edges and both rears were the same. However, they are definitely more worn, with shallower tread than the fronts (est. 1/4" for rears, 3/8" for fronts), and my optimism that they would last another 5-7k+ miles may have been premature.
When I get a chance in the next few days, I'll take the car to the local dealer - one of the service techs is a "track" guy - and see what he thinks. My guess is new tires will be needed at 15k+/- miles if I don't want to milk them past optimum performance.
Obviously, how you drive your car makes a huge difference in tire life. My 12k+ miles have been pretty easy - no track time, a little "enthusiastic" driving, 60% highway miles on fair to good roads.
#8 of 49 Re: tire wear [habitat1]
Mar 13, 2007 (3:23 pm)
"My 12k+ miles have been pretty easy - no track time, a little "enthusiastic" driving, 60% highway miles on fair to good roads."
Can I have your cab when you're done with it?
#9 of 49 Re: tire wear [fedlawman]
Mar 13, 2007 (5:04 pm)
"Can I have your cab when you're done with it?"
How about next week?
I went to my Porsche dealer today to have the service manager look at the tires and he now claims the rears are ready to be replaced. Pretty odd that, at 10,711 miles (oil change/service) they "look great with lots of tread life left" and now at 12,415 miles they "should be replaced as soon as possible". Sounds fishy, but unfortunately, I think the current assessment may be correct. I'm going to try getting a qualified second opinion from someone that doesn't sell tires. After giving me the bad news on the rears, he did say the fronts "look good with lots of tread life left".
In any event, while I was waiting for them to put it up on the rack, I checked out two unsold 911 Turbos they have in stock. GT Silver and Slate Grey, both 6-speeds, with $131,000 to $133,000 stickers. We hit 75 degrees here today, so neither of them looked quite as good as my Cab S with the top down, but they are tempting.
If anyone is looking to "trade up", check out Rockville Porsche. The salesman said they weren't discounting them as they were "extra" allocations from Porsche, but that's the same thing they said in August 2005 when I was Cab S shopping. A little sidebar with the Sales Manager reminding him that I bought from another dealer 50 miles away at a $10,000+ discount in September 2005 ought to loosen them up a bit.
#10 of 49 Re: tire wear [habitat1]
Mar 13, 2007 (6:54 pm)
"How about next week?"
I was hoping for a little more depreciation. 2 years from next week should work.