Originally Posted by ski1297
Im sure it would help. But I dont think I would want to screw something like that on my car.
I agree. It'll help, questions is: how much? It would be interesting to know if Robertwb70 has been progressively testing to see what effect his mods are having. But looking at the picts he's posting he's got the right idea: redirecting airflow around crucial areas to minimize drag.
Being an 'old guy' (despite my 'junior' status) I remember in the mid-late 70's when the second fuel crisis hit. A friend was driving an old AMC Ambassador, a large, four-door, V-8, sedan, that got abysmal mileage. He added a 1/2" plywood air-dam under the front bumper and a sheet metal spoiler-ala-NASCAR to the trunk lid. It looked like hell, but as I recall, it got him about 2-3 more MPG - which doesn't seem like much, but he was only getting 12 or so to begin with, so he saw a significant % increase.
My guess is Robert will see some fairly noticeable mileage gains with his mods.