Density Altitude. Interesting read
http://www.wunderground.com/
http://www.srh.noaa.gov/elp/wxcalc/d...altitude.shtml
It don't matter for my set up what the weater is cuz i'm slow but it's nice to know when I can get my fastest times
ace68, I use the weatherunderground every day for business. Your DA sight is new to me. I haven't seen that one. Thanks man. I use a TAG weather station at the track.
kp, Dang yours has chapters
I'm going to read it when I have time. Thanks. 


