We have 16" electric fans on our cars. We don't run them on the street at all. My car with a 440 runs 10.7s in the 1/4. It rarely sees over 200 degrees even on a hot day and cools right now. I use the 440 source alum water pump and housing. Moroso electric motor with the large diameter gear on the motor. I run a thermostat but have the guts removed from it. On my wife's car her's has less room (1963 falcon with a 351W) we have 2 10" fans on it. We first used them as pushers and had issues cooling down. I later switched them to pullers and it made a world of difference. I think all the fans came off of eBay and are just generic cheaper ones that are supposed to pull alot of CFM.
