Quote:
Originally Posted by Frank Lee
Seriously that little lip isn't worth all this obsessing.
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maybe another way of saying that would be... if you fully tested this with and without the lip, your results would likely be inconclusive.
or as every other person says, try it and see....
or as several said,
we cant tell you because there are too many variables...
for example from
Car Aerodynamics - Top Speed - Hot Rod Magazine
station wagons with the deflector at the back of the car to keep road spray off the rear window. The deflector alone added drag, and a roof rack alone added drag, but when the roof rack was added to the deflector, drag was actually reduced. Of course, the combination was not as good overall as a smooth roof, but the process is a good example of nonobvious interactions.