During the national events this year in touring cars (sorry buggy boys) we found that sucking the air reduced the heat by between 5 and 10 deg more than blowing.
This dose depend on the position of everything of course, fan infront of the motor in the direction of travel needs to be blowing, fan behind the motor needs to be sucking.
Basically you want to move the air faster in the direction its already traveling, not try blow air back againt the direction of travel and stalling the hot air around the motor heating it up and making things worse.
|