So while I'm up at the shack for a grand week of fishing and drinking adult beverages I decided to finish up some aero work on Stinker. Where the original lower grill blocks were, I replaced them with plexiglas that wraps around to the driving lights. Then I made another that would fit in the center of the lower grill so I could take it off as needed.
With the entire lower grill blocked off:
28 miles (to town and back), speeds from 30 mph to 55 mph, mileage 21.5.
With the center opened again:
28 miles (to town and back), speeds from 30 mph to 55 mph, mileage 25.6.
From what I'm seeing here is that this part of the bumper is basically straight up and down with little angle. Blocking the entire area seems, in hindsight, to have increased the pressure on the front of the truck. I also wonder if the air dam has something to do with this since it's right below this area.
Maybe I'll make a camera mount for the front of the thing and do some tuft testing. That'll get the neighbors talking.
Proud owner of Stinkerbutt!
-Air Raid cone filter, direct to TB
-Homebrew front air dam
-Homebrew side skirt
-Torza top bed cover
-Now featuring front wheel canards!
iirc Bruce his air intake is coming from the passenger side fenderwell which is behind the headlight . Hey kitcar ? do you still have the clear tape on the body seams ? Bruce may be on to something ...