Tire availability
05-13-2013, 12:58 PM
#1
Burning Brakes
Thread Starter
Tire availability
My S has 20" wheels with the OEM P Zeros, which I have been quite pleased with, but at 8,800 miles the rears aren't done yet but will be soon. Many here rave about the Michelin PSS. That they happen to be a bit cheaper adds to their appeal. From what I can tell, the 295/30 20" are available in PSS but not the fronts. The non "N" rated P Zeros are available, but only the fronts of the "N" rated P Zeros are available. I don't like to mix brands and always replace all four tires at once even though all my Porsches and motorcycles go through the rears twice as fast. Any advice would be greatly appreciated. Thanks.......Chris
05-13-2013, 02:10 PM
#2
PSS fronts are not available until at least "mid-summer" according to Tire Rack. Your de facto choice will be the OEM Zeroes which where available as of two weeks ago because I just put a new set on.
05-13-2013, 02:17 PM
#3
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Chris, smart to keep the tires matched, but there is really no reason to replace the fronts so early. They will last at least 2X's the rears. Just replace the rears. Rip through those again. Then replace all 4 with the PSS at the end of the year.
05-13-2013, 02:55 PM
#5
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Slightly off topic. I was at the Tire Rack 2 weeks ago, and noticed that the torque spec changed on the 991 (113 ft.lbs.) vs the 997 (96 ft.lbs.). They had a chart in their workshop. Why did Porsche increase the wheel bolt torque spec on the 991/981?
05-13-2013, 02:56 PM
#6
I have PSS on my 650. They are a vast improvement over the stock RF's in all regards except ride comfort which is a tie. This won't be an issue on the 991, but one thing that I do like about the OEM p-zero's is the thick sidewall band which serves to protect the rims from curb rash. The PSS don't have that, at least the ones on my 650 don't. Too bad since my dealer wanted $2k for tire/wheel ins so I passed.
Spyder
Spyder
05-13-2013, 07:05 PM
#7
Burning Brakes
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What are you guys doing to wear your tires out so fast? I have 18k+ miles on the stock Pzero tires on my 991s and they look like I have another 5k+ miles left before they reach the wear bars. While I do not have any track miles yet, I do drive pretty spirited when I can.
Last edited by parkerfe; 05-14-2013 at 08:59 PM.
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05-13-2013, 09:01 PM
#8
I do a fair amount of track days and the occasional "spirited canyon run" but it is certainly the track that wears them out fast. First set shot in about 4,300 miles. . Would probably get 3x if just street driving.
05-13-2013, 09:38 PM
#9
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13K on my rears and tire shop says there's at least 5K left before they need to be replaced. Fronts look fine. My previous 911's rears were pretty much all used up at 8-10K. Just street driving, though.
05-14-2013, 11:16 AM
#10
I have PSS on my 650. They are a vast improvement over the stock RF's in all regards except ride comfort which is a tie. This won't be an issue on the 991, but one thing that I do like about the OEM p-zero's is the thick sidewall band which serves to protect the rims from curb rash. The PSS don't have that, at least the ones on my 650 don't. Too bad since my dealer wanted $2k for tire/wheel ins so I passed.
Spyder
Spyder
No contest on performance, PSS absorbs tiny/small road imperfection but yet still able to provide better grip and sharper handling. But if I can remember it correctly, the oem Pirelli actually quieter.
05-14-2013, 11:30 AM
#11
Race Director
i believe the 991 spec is 118.
its prob due to increased weight of wheels and liability issues.
05-14-2013, 11:34 AM
#12
Race Director
if you go non OEM, make sure the Load rating is at least equal.
I've had different models of Pirelli's in the past and hated everyone! However, the ones on my 991s, are slowly converting me...
I've had different models of Pirelli's in the past and hated everyone! However, the ones on my 991s, are slowly converting me...
05-14-2013, 03:16 PM
#13
I actually wore out the fronts slightly before the rears, but this is due to heavy track use. The tread wore pretty evenly down to the wear blocks on all four tires, but the fronts, particularly the driver's side, had chunks missing from the middle of the tire.
Also, the rear brake pads seem to wear slightly faster than the fronts, and cost more, even though tey are much smaller.
Also, the rear brake pads seem to wear slightly faster than the fronts, and cost more, even though tey are much smaller.
05-14-2013, 04:12 PM
#14
Race Director
I actually wore out the fronts slightly before the rears, but this is due to heavy track use. The tread wore pretty evenly down to the wear blocks on all four tires, but the fronts, particularly the driver's side, had chunks missing from the middle of the tire.
Also, the rear brake pads seem to wear slightly faster than the fronts, and cost more, even though tey are much smaller.
Also, the rear brake pads seem to wear slightly faster than the fronts, and cost more, even though tey are much smaller.
sounds like PTV wearing out the rears
05-14-2013, 04:30 PM
#15
No PDCC, and yes I agree that it is probably PTV on the real brake pads, although I am not sure if stability control is also working the rears more. On the track, I am always in Sports Plus, which lowers the threshold a lot, but it is not off.
As a note, when not in Sports Plus, i.e. Sports or Comfort, the rear brakes get hot enough to smell in a lap or two. Still not quite sure why the front tires chunked up though, especially as I do more counter clockwise tracks and its the driver's left that is the worst.
As a note, when not in Sports Plus, i.e. Sports or Comfort, the rear brakes get hot enough to smell in a lap or two. Still not quite sure why the front tires chunked up though, especially as I do more counter clockwise tracks and its the driver's left that is the worst.