Any S4's in NYC or around with different tires than Conti's?
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No they aren't - if they were good they would be gripping the track.
Thses suckers are so busy slippin' and sliding that they aren't really wearing out anytime soon. I have 5 events on my original set and they still have gobs of tread left.
Do note that I won't use them on a dry day however - that's what my R compounds are for
Do note that I won't use them on a dry day however - that's what my R compounds are for
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Very nice! I have plenty of tread, but my shoulder blocks are completely annihilated.
I have decent tread left on my rears. So I'm going to swap 'em.
The grooves are still present, but the shoulder blocks are bald. :-(
R-compounds sound like fun, but I've been warned to stick with street tires as they are much more inexpensive and you seem to replace them often.
Also, I've heard the characteristics of the tire is such that it grips very well in the dry, but when you cross the limits the car simply loses traction and you slide like crazy.
With that, I think I'll choose the wiser of the two options and just get some relatively cheap decent street tires once the Conti's go.
The grooves are still present, but the shoulder blocks are bald. :-(
R-compounds sound like fun, but I've been warned to stick with street tires as they are much more inexpensive and you seem to replace them often.
Also, I've heard the characteristics of the tire is such that it grips very well in the dry, but when you cross the limits the car simply loses traction and you slide like crazy.
With that, I think I'll choose the wiser of the two options and just get some relatively cheap decent street tires once the Conti's go.
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Correct - please do NOT try R compounds yet. You have much to learn about your car
at the limits of it's traction and ironically the conti's offer the perfect solution to practicing driving in traction challenged conditions :}
The shoulder wear is due to the negative camber your car experiences in a very tight turn under heavy side loading. In the following picture, note that the driver's front tire is actually slanted ever so slightly so that the top of the tire is farther out than the inside (negative camber). In this case, the shoulder of the tire is actually recieving the traction load more than the tread towards the center.
<img src="http://pictureposter.audiworld.com/14388/turn5exit.jpg">
I originally posted this shot to show the suspension under full loading conditions, and it was taken during my first lapping session of the day at Thunderhill with R compound tires. It does not represent a well executed turn - it is in fact a very rough entrance to the next turn and with grippy tires, loaded the suspension right up to the rubber stops Audi has around the shock shafts.
I spent the rest of the day smoothing out my turn entrances so that I did a lot less of the extreme loading that is shown here and the result was much quicker lap times as the day went on.
The shoulder wear is due to the negative camber your car experiences in a very tight turn under heavy side loading. In the following picture, note that the driver's front tire is actually slanted ever so slightly so that the top of the tire is farther out than the inside (negative camber). In this case, the shoulder of the tire is actually recieving the traction load more than the tread towards the center.
<img src="http://pictureposter.audiworld.com/14388/turn5exit.jpg">
I originally posted this shot to show the suspension under full loading conditions, and it was taken during my first lapping session of the day at Thunderhill with R compound tires. It does not represent a well executed turn - it is in fact a very rough entrance to the next turn and with grippy tires, loaded the suspension right up to the rubber stops Audi has around the shock shafts.
I spent the rest of the day smoothing out my turn entrances so that I did a lot less of the extreme loading that is shown here and the result was much quicker lap times as the day went on.
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Thanks Alan..
I think I'll just try and take an easy on the tires next time after rotating them.
A friend of mine has a good thing to say about the Kumho Ecsta MX's as a decent priced street tire for track use. Think I may take a closer look at them after the next event.
A friend of mine has a good thing to say about the Kumho Ecsta MX's as a decent priced street tire for track use. Think I may take a closer look at them after the next event.
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Nah - give the conti's a run for their money and push them.
Can you think of a better way to blow them away? Go ahead and get used to your car sliding around - as long as that's what the conti's do best, why not use them for what they are worth?