Quote:
Originally Posted by Concrete
justpassntime,
looks nice
a row of tuffs on the last 4-6" of the roof
& a row of tuffs on the "spoiler" will let you know what it is doing
but I'm thinking in the big picture this may not be measurable
I just tested a cab extension on my tuck that is 2 foot long
with a pre test run or two with the scan gauge & I'm guessing it is a 10% loser
so it is pretty bad - I must have hit the sweet spot for stinky aero conditions
but yours is about a 1/4 that size so a similar situation may only lead to 2.5% change
and that would be hard to find (good or bad) at the pump I think
but you never know
at least yours is cool looking, mine is obviously Not!  |
Concrete,sorry to hear about disappointing results with cab extension.Something to try.If you can locate Darin's thread on his "permanent Kamm back",we did something I've been working on you might want to check out.We took the ideal teardrop,in ground-effect,and created a "template" out of it.Basically,you scale your S-10,so it's height is just as tall as the template,and position the truck under the template such that the back of the cab lines up with peak of the template.The template will show you the proper curvature for your cab extender.If you can imagine turning the S-10 on it's side,the template will also show how the sides should be formed.If you can find the template I think it will be self-explanitory.Let me know.