Quote:
Originally Posted by Bill in Marin
I certainly don't need them, as I'm don't care to chase the last few seconds. I am in the faster is more fun camp, but given that I was buying new wheels, it was more of a 'why not?' I think I'll stick with the DOT legal R-Compounds.
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Bill, the R7 is a DOT legal R Compound tire.
Other DOT approved R compounds are:
Hoosier A7
BFG R1 & R1s
Toyo 888, RA1, RR
Nitto NT05
Then there are the tires you can drive to the track on such as the :
Michelin Sport Cups
Goodyear Eagle 1 3R
Pirelli Zero Corsa
Slicks are not DOT approved or built tires.
Slicks are measured differently size wise:
Here are some YOKO sizes:
210x650x18
230x650x18
240x640x18
250x650x18
280x650x18
280x680x18
300x680x18
320x650x18
330x710x18
I doubt you want to mess with these. They require a well dialed in suspension, no moisture on the track surface and have a narrow operating range for internal temps.
Some of my fellow track instructors run left over slicks from Will Turners cars, or other "throw aways" They are chasing laptimes.
If your going to move up in tire performance I suggest a 200 wear tire.
The top three out there are:
Yoko A058
Bridgestone RE71R
BFG Rival 1.5
Very fast, can be used in rain (carefully) and have slip angles and noise feedback that most drivers can work with.
HTH
HAZMAT