Whatever air the fan(s) move through the radiator has got to get out. Why trap it under the hood? I wonder why the B-17 my father flew in WW II didn't have electric motors driving the propellers instead of four 1200 HP Wright Cyclone radial engines???????
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!