RhettR7707
Newbie
That is another interesting idea, though my apologies, I meant to say the inner fender, not actually through the body of the truck. There, I don't believe the wind would affect it much, seeing as the front of the truck would be covering it.Hole in outer fender panel. That's air moving past the fender. That would cause a low pressure area , and would pull air out of the hole, to follow high speed laminar flow.
Using a NACA duct would overcome this. Just search " NACA duct".You must be registered for see images attach