How many miles on your tires before having to replace them?
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Various auto manufactures (Porsche, BMW, Ferrari, etc.) develop tire specs in conjunction with various tire manufactures Pirelli, Michelin, Goodyear, etc.). Porsche uses an "N" followed by a number as you describe on the tire sidewall to designate those tires meeting their specs.
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getting 4 Michelin Pro Sport 4S in a couple of weeks
there's the N version and another version with no N classification
know that the N is to Porsche specs, but does not getting an N make that much of a difference?
No tracking, just spirited driving
there's the N version and another version with no N classification
know that the N is to Porsche specs, but does not getting an N make that much of a difference?
No tracking, just spirited driving
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N indicates that porsche tested the tires to be within parameters that the PSM account for the rolling resistance as part of the stability/traction control. It's just another factor taken in consideration before intervening with the traction (eg electronic diff - aka break one rear wheel).
One could get tires with completely different characteristics, which matter how often, how soon and how much the intervention occurs.
Thanks in part to the size requirements and advances in manufacturing, in all truth, these tires fall within a very similar range.
With that being sad, P zeroes still suck.
One could get tires with completely different characteristics, which matter how often, how soon and how much the intervention occurs.
Thanks in part to the size requirements and advances in manufacturing, in all truth, these tires fall within a very similar range.
With that being sad, P zeroes still suck.
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Originally Posted by Little Gator
I was told when I bought my car that the tires were filled with nitrogen gas instead of air. I had heard the sales pitch before about how this switch was suppose to be better because the tire's pressure level would be more stable. But in real world practice, I can't say that I would ever be able to know any different. When the ambient temperature drops as the weather changes, the tire pressure will surely drop whether the tires are filled with one or the other. If I drive the car, the tires will get hot, no matter what they are filled with. And if I have a low pressure reading, I am going to fill it at home with air, as I am not about to drive to the dealer for nitrogen to try to keep it all nitrogen filled, if that was worth anything at all.
Maybe for professional race nitrogen may give an edge. For track day is pretty useless, IMHO. You have to bleed the tires anyway, and unless you have a N2 cylinder with you, you will use air from the track to drive back.
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I agree. I really doubt there is a huge difference when comparing new tires. Keep in mind most guys get rid of OLD Pirellis and get NEW Michelins. Porsche has shipped cars on both so they can't be terrible. Having said that, I'll probably go Michelin this summer.....from Pirelli.
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I was told when I bought my car that the tires were filled with nitrogen gas instead of air. I had heard the sales pitch before about how this switch was suppose to be better because the tire's pressure level would be more stable. But in real world practice, I can't say that I would ever be able to know any different. When the ambient temperature drops as the weather changes, the tire pressure will surely drop whether the tires are filled with one or the other. If I drive the car, the tires will get hot, no matter what they are filled with. And if I have a low pressure reading, I am going to fill it at home with air, as I am not about to drive to the dealer for nitrogen to try to keep it all nitrogen filled, if that was worth anything at all.
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Originally Posted by 911BOY
I agree. I really doubt there is a huge difference when comparing new tires. Keep in mind most guys get rid of OLD Pirellis and get NEW Michelins. Porsche has shipped cars on both so they can't be terrible. Having said that, I'll probably go Michelin this summer.....from Pirelli.
) in the city but fragile for trackBased on prior experiences, I replaced the P0s with minimal miles towards Cup2. P0s are terrible on dry, horrible on wet and dangerous on the track. Once they warm up, they won't last long before overheating. One needs to keep watching the temps or you will spin.
Cup2s should be avoided at speed if rains pools in the tarmac. I drove it in the rain and actually aimed for puddles at reduced speed to check for sliding, didn't happen. They are really good on daily basis and phenomenal on the track.
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