02-10-2003, 11:05 PM
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CC Member
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Join Date: Feb 2001
Location: Farm country,
IL
Cobra Make, Engine: Bare Aluminum pre-Kirkham CSX4000 427 Stroker by Southern Automotive.
Posts: 368
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Not Ranked
A tire with a "R" speed rating is certified to 106 mph for sustained periods. A tire dealer once told me that manufacturers subject each model tire to extreme high speed failure tests, determine that failure speed, then rate the tire two or three ratings level under for product safety. I was also told that the room where the tires are speed tested is heavily fortified. Tire shreds at high velocity without a fender to slow them down can be very destructive! I do not have any other evidence to back up these claims, so do not count on them for safety margins!!
Having Cobra tires on a Cobra would be sweet. I considered them myself, but was leery of the low speed rating. I went with Goodyear yellow letter special edition tires, which were available in 1998. Good luck finding 15" tires with a high speed rating. The present day factory hot rods use mostly 16" and 17" wheels, so that is where most of the options are.
Fast Farmer
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