http://www.tirerack.com/tires/tirete....jsp?techid=72

I found this link that talks about changing your tire's inflation pressure from the car manufacturer's sidewall recommendations IF you plan on driving faster than a certain speed (99 mph for V rated tires, 118 mph for Z rated tires). It took me a couple of times rereading, but I realized that the info on this site is The European Tyre and Rim Technical Organization (ETRTO) recommendation for inflating tires.

This might be useful for those who are planning on doing some high speed runs at the track. Thoughts?