Having problems with keeping the car cool throughout the night at the track. Out of SIX separate times I've gone in the past, my first run has had the best mph. This really sucks because if I don't get a good 60' on my very first run, I don't really stand a chance at running a new best for the rest of the night. After each run I let me car sit, with the engine off, hood up, and manual fan switch on high, for about 30min. My trap speed usually loses about 0.5 to 1 whole mph by the end of the night, which doesn't make sense to me, because the night should generally be getting cooler. By the way, I've also done the TBB. Maybe I should do a coolant flush? Haven't done that yet, with 63k on the car.....is there anything else that could be wrong?

 

maybe your draining your battery too much. And you know that if your 60' increases your MPH could go down.

 

Are you on street tires? They'll get slicker as they get hotter. What about track condition?

 

I find that my car runs better if it idles for 3 or 4 minutes before i run. I think the incoming air from it idleing cools the intake down some. I get better results that way than from pushing it through the staging lanes or starting it up and then shutting it off all the way up untill i run.