gcmak
Well-Known Member
- Joined
- Mar 6, 2021
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- Location
- San Francisco
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- 2021 Supra
Speaking with track junkies, on a stock setup, there's a difference between improved grip versus better tire wear in regards to pressures. The PSS tires have a softer outer compound and it'll wear quicker even with -3 degrees of negative camber. What I learned is that the recommended pressures in the infotainment will help to improve tire wear, but you're not necessarily going to get the most grip by following the recommendation. Respecting and managing tire temps will be needed if you desire tire longevity - even if you plan to modify your suspension.
Here's the example from my experience at Laguna.
I was running pressures that I felt comfortable with and got a really good time. The wear wasn't actually that bad (front right tire gets the most beat up at laguna and it looked ok but the outer edges definitely got eaten away. (I had 1,700 miles on the car at this time).
Now around 2,100 miles and an autoX event I think the edge is likely a bit too low to run another full track day - at least not without reaching the cords probably before the end of 1 day (my guess).
But overall I like how firm, responsive, and predictable the PSS has been. Being able to dial in camber would help the fronts and even the rear it would help a bit, but here's a photo of a rear tire at around 2,300 miles (nearing the wear bars). Not bad to me though.
Here's the example from my experience at Laguna.
I was running pressures that I felt comfortable with and got a really good time. The wear wasn't actually that bad (front right tire gets the most beat up at laguna and it looked ok but the outer edges definitely got eaten away. (I had 1,700 miles on the car at this time).
Now around 2,100 miles and an autoX event I think the edge is likely a bit too low to run another full track day - at least not without reaching the cords probably before the end of 1 day (my guess).
But overall I like how firm, responsive, and predictable the PSS has been. Being able to dial in camber would help the fronts and even the rear it would help a bit, but here's a photo of a rear tire at around 2,300 miles (nearing the wear bars). Not bad to me though.
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