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Thoughts on PSS v PSC2?

 
Old 07-26-2016, 01:50 PM
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Originally Posted by Highyo View Post
ah ok so the tires wont last as long. thats good to know.
That was what I was referring to in my comment above. The wear rate on the SC2 is going to be much higher than the PSS. Your cost per mile is going to be much higher, if that matters to you.
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Old 07-26-2016, 01:53 PM
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Originally Posted by hsmith View Post
I just think they are overkill for street use only.
The 911 is overkill for street use only. So if that were the standard, might as well get the PSC2 and just round out the overkill.

That said, the reasons why PSC2 might not be the best tire for street use only is because of several things, incl. price, lack of wet traction (they are scary in the rain), and tire life (although I think it's debatable how much shorter tire life of the PSC2 are compared to the PSS as I know some who have gotten over 12k on a set of PSC2.)

But if you live in a dry climate where it rarely rains, and you have enough money that you wipe your *** with dollar bills and blow your nose with $5, then by all means, go for the PSC2.
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Old 07-26-2016, 01:53 PM
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Originally Posted by Archimedes View Post
That was what I was referring to in my comment above. The wear rate on the SC2 is going to be much higher than the PSS. Your cost per mile is going to be much higher, if that matters to you.
Is there actual data that supports that? Not picking a fight, just curious.
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Old 07-26-2016, 02:28 PM
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Originally Posted by ipse dixit View Post
The 911 is overkill for street use only. So if that were the standard, might as well get the PSC2 and just round out the overkill.

That said, the reasons why PSC2 might not be the best tire for street use only is because of several things, incl. price, lack of wet traction (they are scary in the rain), and tire life (although I think it's debatable how much shorter tire life of the PSC2 are compared to the PSS as I know some who have gotten over 12k on a set of PSC2.)

But if you live in a dry climate where it rarely rains, and you have enough money that you wipe your *** with dollar bills and blow your nose with $5, then by all means, go for the PSC2.
to be fair they are not THAT much more than the non porsche spec MPSS (which if im correct have less treadlife than the NO spec?)

as to the scary in the rain comment i suppose i can only judge by the tirerack reviews or some people here. if they are much worse than the mpss in the wet, that can be a deal breaker right there
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Old 07-26-2016, 02:34 PM
  #20  
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Originally Posted by Highyo View Post

as to the scary in the rain comment i suppose i can only judge by the tirerack reviews or some people here. if they are much worse than the mpss in the wet, that can be a deal breaker right there
Trust me, from someone who is running a set of PSC2, they are scary in the wet.
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Old 07-26-2016, 02:37 PM
  #21  
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Originally Posted by ipse dixit View Post
Trust me, from someone who is running a set of PSC2, they are scary in the wet.
ok thats good to know. thanks for the clarification
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Old 07-26-2016, 02:57 PM
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Originally Posted by ipse dixit View Post
Is there actual data that supports that? Not picking a fight, just curious.
MPSS wear rating 300
MPSC2 wear rating 180
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Old 07-26-2016, 03:06 PM
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one more thats sort of related:

between the ferrari spec and the non anything spec. ferrari is 1511 and non everything is 1368. suppose should just go cheaper?


https://www.tirerack.com/tires/TireS...SortCode=60158
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Old 07-26-2016, 03:18 PM
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Originally Posted by Highyo View Post
it is my opinion that summer tires should be run in the summer so both are at least on equal footing in that regard. sub 35 degrees turns all of these compounds into hockey pucks. so i have eliminated winter/cold driving. and i guess if i get caught in the rain i will have to learn the limits of the SS vs the cup 2s. are they that much worse?
The PSC2s have a higher temp falloff threshold than the MPSSs. Temps in the 40s F will significantly reduce grip while MPSS's falloff point is lower. The PSC2s don't work as well in the wet, either. So for all street use, MPSS are the way to go.
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Old 07-26-2016, 03:20 PM
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Originally Posted by Larry Cable View Post
MPSS wear rating 300
MPSC2 wear rating 180
Yes, I know about the UTQG Treadwear Grades for each of the tires, but those ratings a mix of real life test performance, estimates, and extrapolation.

Like making sausages. I'm looking for an actual steak.
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Old 07-26-2016, 03:26 PM
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Originally Posted by ipse dixit View Post
Yes, I know about the UTQG Treadwear Grades for each of the tires, but those ratings a mix of real life test performance, estimates, and extrapolation. Like making sausages. I'm looking for an actual steak.
Why don't get a set of SC2 and report back if they even last 10k miles.

UTQG is a good metric. You can argue 180 vs 200, but not 180 vs 300.
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Old 07-26-2016, 03:32 PM
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Originally Posted by Highyo View Post
one more thats sort of related:

between the ferrari spec and the non anything spec. ferrari is 1511 and non everything is 1368. suppose should just go cheaper?


https://www.tirerack.com/tires/TireS...SortCode=60158
personally I would not mount "other" (Ferrari) brand (K) spec tyres on a 911, better to go with the generic IMO...
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Old 07-26-2016, 04:07 PM
  #28  
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Originally Posted by Jnosol View Post
Why don't get a set of SC2 and report back if they even last 10k miles.

UTQG is a good metric. You can argue 180 vs 200, but not 180 vs 300.
I know of several owners who have gotten over 12K on the PSC2, with only street driving. This is on the 991 GT3.
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Old 07-26-2016, 05:08 PM
  #29  
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Originally Posted by ipse dixit View Post
I know of several owners who have gotten over 12K on the PSC2, with only street driving. This is on the 991 GT3.
Those owners do not deserve a GT3 if they drive like my grandma. I bet the same owners can get 25k miles on MPSS then.

On a serious note, Cup 2 lasts around 6-8k miles for a typical GT3 owner. That's even with at least one weekend at the track. Cup 2 are semi slicks, so they do go by heat cycle and as well as by miles. Cup 2 lasts about 24 heat cycles. After that, they harden and pretty much worthless. Some can see the rear to last 12k if they're gentle enough.

If you track more than 4 times per year, then PSC2 would be better (or swap at the track). PSC2 has stiff sidewalls, so less wear on the edge compared to MPSS for performance driving. Plus, PSC2 doesn't shoot out chunks when extremely hot like MPSS. For track use, PSC2 would outlast MPSS.

For Daily: Unless where you live doesn't rain and you're willing to replace the tires more often, MPSS is the wiser choice.
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Old 07-26-2016, 05:49 PM
  #30  
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Originally Posted by Larry Cable View Post
MPSS wear rating 300
MPSC2 wear rating 180
Beat me to it. PSC2's don't last near as long as the PSS. There's plenty of evidence of that all over the GT car subforms.
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