Quote:
Originally Posted by ShadeTreeMech
Which is kinda along my train of thought. Block the grill off completely, leave an opening under the bumper for the air draw as needed by the radiator fan, and enjoy the MPG savings, intead of worrying about controlling the variable air flow from the front of the car.
The Honda CRX Del Sol had a very small grille opening under the bumper. What if it had no grille opening and just pulled in air as needed with the rad fan?
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Well it needs some opening to pull air in. The smaller the opening, the less efficient the fan is, and you can increase fan power without pulling in much more air.