i have a 99 civic si....i recentlt turboed my car and i am gonna build the motor this winter...i am gonnna run somewhere between 375-400 and i was wondering whats the best way to keep everything cooled down so it wont over heat?? thanks

 

At night you can run with the windows down and the heat on, that helps. So do products like water wetter etc. Or you could just buy a nice big radiator

 

Pepboys/autozone generic slim fan, water wetter, distilled water with 25% coolant new thermostat. and a 2 core radiator.. car will run cooler than bone stock.