i have been to the track 2 times in the past month. the first day was nice and cool outside, but with shitty tires and still having my clutch slip after every gear i was hitting a 14.1 at 104mph now this past sunday i went with some new tires and was using my NLS so my clutch would not slip on me any at all, my best time was a damn 14.1 at 102 mph. but it was pretty damn hot that day. my iat2's where averaging around 140 down the track which is shitty also. but wow can the temp outside effect me that much from when i went the the track during winter last year i was hitting 13.00 flat at about 109-110. i only have one vid that a friend took of me racing a friends civic

http://www.youtube.com/watch?v=U6ohuoShC7E

 

cold weather mean less dense air makes it more efficient makes better power hot weather completely the other way

 

I under stand that but would it throw my time off by a second? I even gutted my car this time just for the track and had my gas tank pretty much on empty

 

so you ran 13.0 with street tires? on a stock clutch or no? cooling mods? are you running the same tune?

 

Same tune, and every damn coolin mod, with dunlop star specs. Still stock clutch that has a mind of its own, sometimes it slips and sometimes it doesn't : /.