Quote:
Originally Posted by NeilBlanchard
Another test might be to put a couple of small leaves or pieces of paper resting on the windshield on the wipers. I think that on most vehicles, a majority of the area around the wipers is a stagnant pocket of air. The air simply doesn't flow close to the car in this area.
And any mods you make here will have virtually zero effect. Smooth wheel covers - check. Wheel skirts - check. Kamm back - check. Grill blocks - check. Wheel strakes - check. Belly pans - check. Boattail - check. But wiper deletes and cowlings won't make much of a difference, if any.
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I would love to mock up a sort of windtunnel and play with it but I might try your idea...Ive noticed before on my truck how leaves get stuck and they will flap all around but usually only dislodge entirely when I run the wipers and get them into the airstream...the flapping tho tells me that somethin is goin on down there. I know some cowl induction hoods draw air from this area...hmmm. I need to make up some of those "tuft" test thingies from some yarn or whatever.
Matt