BillyJRacing
Well-Known Member
It never rains in CA, and when it does, the oil from the road comes to the surface and makes the streets as slick as ice, compared to places that rain all the time. Is this the main cause and issue (that happens in any car) that you are talking about?BillyJRacing,
Thanks for all your input! Really appreciated, especially for track noobs as myself. I do have a question in regards to my stock PSS.., I’ve tracked them in the rain at Big Willow. They slid around quite a lot...even the instructor was surprised how easily my tail gave out.
On the way home, on normal streets in the wet, it got even worse. Is this due to the “marbles” that are stuck on the surface slowly giving way? Are melted bits of tire that get stuck an issue?
Thank you!
PS, forgot to ask...after reading your explanation of the new cup 2s for the non-R....would it be suffice to say, that I should go for those as opposed to my current PSS, when comes time to replace my tires?
If you have rubber pickup from marbles, then yes it can hurt the tire's wet performance.
It depends. If you are happy with the wet/dry performance of the stock PSS, then the 2019 GT 350 Cup 2 would be an improvement, especially on track. If you don't track your car more than 1-2X a year, and care more about wet grip and hydroplaning resistance than dry and track performance, i'd go with PS4S tires. Since you live in CA and it rarely rains, personally, I'd probably go with the new Cup 2 if you intend on doing more track days.
What are you trying to deduce from knowing the stated treadwear ratings (which are all the same for the Cup 2's). If you're trying to determine what Cup 2 will last longer on the street due to a deeper tread depth or harder compound, you can look up the former and won't know the latter. Therefore, the stated number is useless.Decently comparable is still useful. Somewhat useless isn’t completely useless. Every tire distributor says comparable within same brand. Still doesn’t answer the question.
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