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  #21  
Old 03-21-2008, 08:03 PM
MitchJi MitchJi is offline
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Default Re: Pickup truck Aerodynamics

Hi,

Check here (brief excerpts below):
http://www.evworld.com/article.cfm?a...=3025&end=3024
Quote:
Phil Knox's streamlined 1994 Toyota Tacoma pickup saw its fuel economy go from 25 mpg to 32 mpg at 70 mph just by improving its aerodynamics, reducing its Cd from 0.44 to 0.25, the same as the Honda Insight gasoline-electric hybrid.

Using the principles of aerodynamics, Phil Knox's recent additions of an aero-shell, under-belly pan, rear wheel skirts, wheel covers and grill block to his 1994 T-100 Toyota pickup improved his gas mileage by 28 percent over the original highway mileage.
Best Wishes,

Mitch
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  #22  
Old 04-24-2008, 10:40 PM
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helixev helixev is offline
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Default Re: Pickup truck Aerodynamics

What speed does drag start to really be an issue? If I never really go over 45-50mph would it be worth doing some aero mods to my truck like a belly pan and slopped cap?
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  #23  
Old 04-25-2008, 09:04 AM
MrCrabs MrCrabs is offline
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Default Re: Pickup truck Aerodynamics

I was playing with the EV calculator, and it seems like from 0-25 mph air resistance is fairly linear, however at those speeds Rolling Resistance is a bigger factor.
Once you get above 30 air drag starts growing exponentially.. So if you drive at 45 alot, you might benefit from some areo-mods
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  #24  
Old 05-12-2008, 10:48 PM
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Thalass Thalass is offline
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Default Re: Pickup truck Aerodynamics

I really recommend the Ecomodder.com forums. They have a whole forum devoted to aerodynamics.

From what I've gleaned, a belly pan is quite effective, as well as mirror deletes and general smoothing of the body shape. I'm going to have to do a bit of studying for my brumby conversion.
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