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Old 02-21-2009, 05:40 PM   #6 (permalink)
aerohead
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drag

Quote:
Originally Posted by winkosmosis View Post
The drag comes from the shape of the grill's effect on the airstream, not air going in, so I don't see the point in those rear blocks

The other thing I don't understand is when people block the lower grill but not the upper. Even if you get smooth flow from the bottom one, going up the air will hit the top grill like it's a parachute-- even more so because it's higher pressure and faster air.
Actually the drag is caused by the air going through the cooling system and the tortuous path through the engine bay on its way out.
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