Kevin's tire testing link

Found this, Kevin mentioned it in passing.

http://blogs.hotrod.com/video-hot-rod-un...outh-89057.html

https://board.moparts.org/ubbthreads/showflat.php?Cat=0&Number=7901035

Guess Captain Obvious just made it to the show now didn't I?

Here's the complete article. There's a lot of good info.

This tire test was possibly one of the best-ever documented tests made (same size, same advertised tread wear rating at 200, same tire psi f/r).

I think some factors, however, as the day progressed, could have some critical influence (in respect to time results in the 0.001 seconds):

(1) day's temperature changing (cooler morning/warmer mid-day/cooler afternoon),
(2) amount of fuel in the tank (progressively less weight changing the balance of the car),
(3) did the tires acheive their intended best rubber temperatures... although, 5 equal runs should be square enough amongst each other,
(4) order of which tires were run when in the day.

Again, a great documented test that can influence selections for us. But also, at some autocross sanctioned championship events (SCCA, others), some tire brands do offer contingency awards for running their tires if you place 1-2-3... so, that is a high factor in seeing who runs what and when/where.

Mitch, we ran the Bridgestone as a control tire to account for the variables and times were adjusted if needed.

Tire Rack has it together for testing. They can't afford to have a variable like weather, or the car, negatively impact their testing.

Apparently when Tire Rack first did their test they used the Hancook Ventus R23. Since then, they've released a Version 2 of the tire which may be a good option to look into.

http://www.tirerack.com/tires/tires.jsp?tireMake=Hankook&tireModel=Ventus+R-S3+%28Version+2%29

A heads up, right now Tire Rack has the Direzza ZII and the "1st gen" Hancook Ventus R23 tires on Closeout prices. Don't know any more details, but if you are looking to get some tires