Quote:
Originally Posted by UltArc
If you're going to do an underbody, don't bother with an air dam. Air dam increases frontal area so the mess underneath experiences less air- if the bottom is totally smooth, then there is no point in increasing frontal area.
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Less frontal area, less hitting the wind.
Less drag under the car, less slowing you down.
Underbody > Air Dam
Air Dam> Nothing