Gorecki;208479 wrote: But do you really think that has the same effect in a street situation where the heat is possibly not being generated as consistantly as it would be on the track? The dunlop dude suggests 32 for a stating point for the track on Q2's and it takes a good couple of laps to get them up to temp. And then, they get cold pretty quickly. Wouldn't the often stopping, starting and likely less than track level agression be harder to keep the heat?
Serious questions, not meaning to be argumentative or anything. :dunno:
You've just described why I don't think it's a good idea to use race tires on the street, they can't be worked hard enough to get and stay at proper operating temperature. However, any of the hypersport street tires, such as the Q2, heat up more quickly, so they should hold enough heat to work fine on the street. For street riding. I believe the same principle of lowering the pressures holds true (they'll heat up quicker, etc.), although I think you have a point that they may cool off quicker due to less consistency in speed on the street (stopping for lights, etc.). Another good reason to not run the low pressures is the inevitable pot hole.
Bottom line, it's not safe to do trackday practice on curvy roads. Not being overly critical, as I'm sure I've fractured a few speeding laws in the distant past, but the conditions just aren't optimal for many reasons. I gave up spirited street riding many years ago. I still street ride, but it's not even close to what I do at the track. And, as described by slowpoke, you can't hang off the same on the street as the track. Well, and not be as safe.
I'm not looking for any arguments, either, just trying to answer your tire question as best as I know, and I'm not a tire expert.
