power lose

i have a serious power lose after i have ran my car hard for like 20 min.. i can race my budy and beat him, but if we race like 2 more times then he starts to kill me on the 3rd race. i mean my car was warm on the first race and i dont think the engine warmed up that much but it makes a huge difference. is there a way to stop that or even what is it, is something wrong?

Umm.. well if you think its a cooling problem. Try installing a lower temp. thermostat. And possibly an electric fan.

Cars always seem to run a bit sluggish if they're warmer than the 'regular' operating temperature.

Also, check your coolant level as well... its possible you may not be full.

5sPeed -
Like Red said try a lower thermostat. You might also want to try running higher octane fuel.

On my car, after a few runs I also start to lose power. When the engine is hot, the computer retards timing a deg. or so to stop detonation. This would be less of a problem if 93 octane was available in CA (damn 91).

Originally posted by danno_SS
On my car, after a few runs I also start to lose power. When the engine is hot, the computer retards timing a deg. or so to stop detonation. This would be less of a problem if 93 octane was available in CA (damn 91).

damned tru...had to buy the 100 octane race fuel down at the track (1 gallon of that mixed w/ 1 gallon of 91) for me to be able to get my car to keep running strong the entire time down there. it helps a lot.