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Stephankol · 02-07-2010, 08:08 PM

I did some research for college credit and tested various vehicle modifications to figure out Cd changes.
I ended up testing wheel well covers, vortex generators, and belly pans on all of the vehicles. I also tested tonneau covers, camper shells, and angled bed covers on the two pickups.
The results I got were fairly consistent with what I've been seeing on the website here, but there were a few results that were kind of surprising.
I'll get my results posted here and if you have any questions, just ask me!

(the vehicles I used are also listed on ebay if you would like to try to prove or disprove my results)

02-07-2010, 08:08 PM	#1 (permalink)
Stephankol Oil Burner Extraordinaire Join Date: Aug 2008 Location: Northwest Missouri Posts: 5 She-ra - '05 Pontiac Grand Prix 90 day: 28.94 mpg (US) White Beast - '07 GMC Sierra 2500HD 90 day: 14.56 mpg (US) Thanks: 0 Thanked 3 Times in 1 Post	Aerodynamics Research on Vehicle Modifications I did some research for college credit and tested various vehicle modifications to figure out Cd changes. I ended up testing wheel well covers, vortex generators, and belly pans on all of the vehicles. I also tested tonneau covers, camper shells, and angled bed covers on the two pickups. The results I got were fairly consistent with what I've been seeing on the website here, but there were a few results that were kind of surprising. I'll get my results posted here and if you have any questions, just ask me! (the vehicles I used are also listed on ebay if you would like to try to prove or disprove my results)