Planning my air dam and side-skirts. Ordered landscape edging for the lower portions and steel for some bracing. Going to look at aluminum Tuesday.
So with the very square and straight front end of my van and its mostly straight and square sides, I'm torn on what shape is best. In the pic below you can see that the grill slopes inward somewhat toward the bumper, likely creating a high-pressure point there. Ford put a pair of large grill openings there (see top picture), likely by design to take advantage of this high-pressure area for cooling air flow.
The questions for me are 1) should the airdam be straight across the bumper or be curved inward from the center toward the tire on each side? and 2) Should the side-skirts start inboard of the front tires' rear edge (closer to the centerline of the body) or be straight inline with the body itself? Inboard seems like it would keep the air stirred up by the tire from getting trapped underneath but inline seems like it would keep things more streamlined on the sides of the body, especially since my airdam will keep most of the air off the front tires and they now (thanks to new tires and wheels) sit nearly entirely inboard of the fender edges and finally 3) what should the skirts do behind the rear tires? I think they should probably pitch inboard from the rear inner finderwell toward the body's centerline but I'm not sure.
Any help here would be great! Looking forward to suggestions so I can start construction.
Here's a cropped image of my van if anyone needs it for some artwork. That'd be awesome BTW.
Here's another one somebody shared in another thread. The grille slope can be seen here. My van isn't exactly like the one pictured as my roofline is higher and my overall length is 20" longer.
