Quote:
Originally Posted by Frank Lee
I don't have direct experience but I do recall an old Popular Mechanics article about ecomodding a small pickup and they said a regular decently fitted topper was better than none. IIRC they said it was better than a tonneau too, but I'd have to go find it. Also the LEER topper site had wind tunnel results from toppers and tonneaus.
|
Frank, I agree 100%.
Anytime one makes the length/width ratio of a body shape longer, the air drag is decreased. Think of a streamlined train.
Take a look at the link below, and specifically at Figure 13 and Figure 14.
http://ecomodder.com/forum/showthrea...pes-11183.html
Also tried looking in the Stickies for Phil Knox's articles on truck air drag but did not find what used to be there.
Jim.