guys, i've been lurking, searching, and asking questions....but does ANYBODY have REAL solid, numbers, sketches, windtunnel tests, things like that on this..
i'm driving a 93 Lightning, so we all know its not exactly fuel efficient...and with my access to carbon fiber production facilites and a machine shop i would like to possibly take up the production of one of these and see how much it helps me along with a possible under belly pan and lower front lip (looks don't hurt either
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so does anybody have any physical data on these covers?
i've got a visual representation here of CD with truck covers, and i'm getting conflicting info...some people are saying that the half cover is MORE effective than a full cover, this specific visual, as you can see, is contradicting that statement..this is the only info i have
KB,we got into this a while back and I thought I posted on it,don't remember.
GM did receive a utility patent on the 1/2-tonneau,and within the patent they provide a metric of delta-Cd vs tonneau percentage coverage from 0-100%.
The 1/2-tonneau does demonstrate the lowest drag for their test truck.
A Gale Banks modified S-15 set an LSR of 211 mph at Bonneville,using the 1/2-tonneau along with some other tricks,sporting a CD 0.31,lower than Corvette of that time period
i've also seen that a diffuser on the cab helps, i'm not interested...its a good looking performance truck, and that just does not do it for me