Quote:
Originally Posted by al74dart
Thanks guys, the back of my car is impossible to keep clean so it is worth the little in MPG I will loose. I hope to gain enough from my other mods to more than offset the loss. I am planning on blocking the upper grill completely once I get a Scangauge so I can monitor the temp before and after. I am also redoing the underside of the car with sheet aluminum where I can and adding deflectors in front of all four wheels to move the air away from the tires. I should have new tires soon that will also help. I usually bump the TP up by 15% - 20% over the recommended pressure but always under the Max pressure rating for the tires. Living in Arizona the tire pressure can get really high when it's 115F in the shade. I am also working on a windshield wiper deflector I can live with. I am not sure how much it will help. I may be better off trying to build a bug deflector that will push the air up enough so I won't need to build a windshield wiper deflector.
Al
|
In addition to the air deflector at the top,a full-width "shelf" at the bottom of the rear windshield projecting straight back,perhaps no further than the end of the rear bumper,might keep some of the road debris from being vacuumed into this space from below.Some kinda flexible material that wouldn't poke you or a passerby.