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Old 08-17-2013, 10:03 AM   #5 (permalink)
RedDevil
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Red Devil - '11 Honda Insight Elegance
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I wonder about that Cd reading as (according to wikipedia) "Its (3d gen Prius) new body design is more aerodynamic, with a reduced drag coefficient of Cd=0.25. This figure is disputed by General Motors which found the value for the model with 17" wheels to be around 0.30 based on tests in GM, Ford, and Chrysler wind tunnels."

So woud all this just yield a 4% reduction in drag?
Unless American Iron was right about the .30; then it is a 20% reduction.
It does seem to have 17" rims.

I'd expect 1% from the aero wheelcaps (why just the front?), 2% from the arch covers, 2% from the 'spats', 5% or so from the U&L grill block and lip, 2% from the smaller windows and other trim.
4% overall seems too low low, 20% too high.

It is nice to see commercially available aeromodding kits. Even though you'd have to burn at least 20 thousand gallon before you earn your investment back... You'd go a million miles
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2011 Honda Insight + HID, LEDs, tiny PV panel, extra brake pad return springs, neutral wheel alignment, 44/42 PSI (air), PHEV light (inop), tightened wheel nut.
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Last edited by RedDevil; 08-19-2013 at 04:14 PM..
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