[spitty12]

These motors run hot, they are designed to do so. If you want good cooling cut a hole in the rear window over the motor, hot air rises so it will be able to escape and flow some air.
I cut the vents in my supra hood, side skirts and front air dam to increase air flow and give it a functional look. The rear portion of the cars is higher off the ground then the rest of the car so air can escape from under the car. Cut out the license plate if you want more flow from the back but there should be enough.

Fans would be a wast of time, money, space, energy and weight so don't bother.

Bleek, this is not a car engine, you will never notice any performance gain by cooling the motor but you may increase the longevity if you are running 5 or 6 cells.