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Old 02-07-2015, 04:46 AM   #9 (permalink)
Cd
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I vote Option 1.
I'm an armchair aero geek, and know nothing of aerodynamics, but I would think that Option 1 might be a fraction of a percent better.
I base this guess on the fact that every trip strip / air ramp that I have seen, is located at least two inches within the area of the car that has a radiused edge.

Some good examples are the pictures you posted. If you notice, the body panel begins to curve a couple of inches before the trip strip.

However, there are some exceptions, such as the air ramp on the Ford Focus tailights :



A curious thing abou the Focus is the fact that the air ramp is there on a section of the light, but directly below it is a massive round edge to the bumper and area above the air ramp.

Last edited by Cd; 02-07-2015 at 04:52 AM..
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