Well, my company rented out an autocross track for some testing today. During the down time i set up some cones and ran my own autocross. I have no idea how many continuous runs I did (alot). After awhile (a long while), I checked my front tires (Perelli's).... They were toast. I know it is driver error. I was going into corners and understeering. I was playing with different ways change this. Ohh my.
killed my tires
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I read somewhere that Porsche sports car tyres don't last--mainly because they are soft and sticky and driven hard.
They recommended that you NOT expect anywhere near the same mileage as a sedan tyre driven conservatively.
Of course a good sticky F1 tyre may last 40 miles!! (They use Pirelli PZero too.)
They recommended that you NOT expect anywhere near the same mileage as a sedan tyre driven conservatively.Of course a good sticky F1 tyre may last 40 miles!! (They use Pirelli PZero too.)
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717 Posts
The Pilot Sport 4S tires rock. They've lasted me an entire season of DE days. And they still have life left in them!
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1,891 Posts
Anytime Pirellis die is a moment to be celebrated. IMHO, the last truly great performance tire it made was either the P7 or the original P Zero.
Just to clarify a previous post: It's not Porsche tires that don't last long, it's whatever make of tires that's on the Porsche that don't last long. IOW, it's not a Porsche 'thing', at least on the 718. That said, it's definitely more of a 'thing' on a 911 because of the geometry of the rear suspension/drivetrain -- unless it's dead on, the rears become toast quick.
On certain other cars, however, it's definitely more of a 'thing'. I don't imagine that the Dodge Challenger Hellcat is easy on tires, considering that one can rather easily induce wheelspin in fourth gear on it. Also, the original Acura/Honda NSX chewed through rear tires in an average of 4k miles no matter what the driving habits of the owner were. It was so bad, Honda actually started paying a stipend to early NSX owners to offset tire cost.
Just to clarify a previous post: It's not Porsche tires that don't last long, it's whatever make of tires that's on the Porsche that don't last long. IOW, it's not a Porsche 'thing', at least on the 718. That said, it's definitely more of a 'thing' on a 911 because of the geometry of the rear suspension/drivetrain -- unless it's dead on, the rears become toast quick.
On certain other cars, however, it's definitely more of a 'thing'. I don't imagine that the Dodge Challenger Hellcat is easy on tires, considering that one can rather easily induce wheelspin in fourth gear on it. Also, the original Acura/Honda NSX chewed through rear tires in an average of 4k miles no matter what the driving habits of the owner were. It was so bad, Honda actually started paying a stipend to early NSX owners to offset tire cost.
Tire wear
I got 20,000 miles out of my Goodyears rears. The fronts probably had 60-70% left. We have a rear weight bias, rear drive car with staggered tire sizes that doesn't allow rotating. If you don't rotate tires in a conventional car, you'll prematurely wear the fronts on the outside and the rears on the center. There's nothing you can do but accept the circumstance with our Porsches. I could have just purchased a set of Goodyears rears, but I just wanted the Michelins. If my car was delivered with the Michelins, I just would have bought Michelin rears. Oh well.
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702 Posts
28psi on rear tires would be my advice, 34.5 is about the right pressure when they are warmed up, must have been a raw surface you were driving on
Good choice on the Michelin tires.
cold pressure for trackdriving.
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479 Posts
i chunked up my stock pirelli tires with a single day of track driving on a track that had been completely repaved 2 weeks prior (or maybe 1 week, i forget). it was smooth as it was ever going to be in it's life and they still didn't handle the abuse.
i run nitto nt01 now for my track days and i get 10-12 days out of them if i don't overdo it. 2 weeks ago we had a charity event coincide with a club de so i was giving rides to a lot of people. instead of my normal four 30 minute sessions i did 3 @ 30mins and 6 more @ 15-20 mins in the same day, so i really taxed them. just as well, wanted new tires for daytona in december!
i run nitto nt01 now for my track days and i get 10-12 days out of them if i don't overdo it. 2 weeks ago we had a charity event coincide with a club de so i was giving rides to a lot of people. instead of my normal four 30 minute sessions i did 3 @ 30mins and 6 more @ 15-20 mins in the same day, so i really taxed them. just as well, wanted new tires for daytona in december!
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