ps cup question
I have a 996tt and the front tires are worn more than the rears. The dimples on outer shoulder are all gone, I am past the wear indicators on most areas of fronts.

I guess this is bc it is a all wheel drive car and running -.9 camber front and -1.8ish rear.

No cords yet but it is my first time to run the ps cup tires on a car. I have done 5-6 track days, not sure how many heat cycles.

Are they toast?

 

so the outside of your front tires wore out before the inside of the rear tires?

 

Sounds like you need to run more front camber, I burned through a set of MPSC's really fast at the track because I didn't have enough camber, after increasing the camber the tire wears evenly now.

If the cords aren't showing you should be fine for a track day, just keep an eye on them.

 

no, the fronts pretty much from 3/4 on outside are worn, so that the dimples on the outside patch are all gone and I am into the wear indicators. The rears have worn pretty evenly and still have sign of the dimples or cross etch pattern left.

 

thanks, I was thinking about the same and had heard other folks go through a set with out enough neg camber. All I can get right now is neg 9 at my height and with a stock set up aside from pss10's that are on the car.

Already have some rss goodies on rear.

 

If it's in the budget add some GT3 or RSS adjustable lower control arms for the front, that's what I had to do to get the camber where I needed it. You should also run about .4 more negative camber in the front than the rear (e.g -2.0R and -2.4F), the MPSC's like negative camber. I also added a GT3 rear swaybar to help with the push. Once you get your car setup for these tires they stick like glue on the track and will last longer.

 

+1 for the GT3 adjustable front control arms. They will allow you to get the added camber that you need. RSS makes some beautiful billet ones.

 

Need camber, no way around it.

 

+1 camber. Say bye to most of the understeer to. Always check your tire pressures as well. on the subject of them being any good...After 4-5 heavy heat cycles or 4-5 light track days you are done as far as peak performance. I was just on another thread talking about how I live PS02's. But I must say the Toyo R888's are really great too if you want to try them. You can swap if the inside/outside wear is not even too.

 

Thanks for all the info all! Very helpful.

 

Sam i will get R888's next month,so they can be swaped...they don't have a giro direct ? do you understand me ??

 

Not asymmetric. As is left tire right tire. The are only directional. So they only spin one direction (forward) but the tread is rolling in the same direction if you swap the rear left tire with rear right keeping the wheels in there respective corners.

 

So the inside of the left rear tire will be inside of the right rear wheel,is that correct ??

 

No it will be the outside. Picture that the wheels stay, the tires "slide over" still rolling in the same direction but swapping inside for outside.

 

Thank you Sam,i got it now.