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Old 02-08-2009, 02:41 PM   #11 (permalink)
lunarhighway
Master EcoModder
 
Join Date: Feb 2008
Location: belgium
Posts: 663

vectra a - '95 Opel Vectra GLS
90 day: 37.51 mpg (US)
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Quote:
I wouldn't put too much hope in the air-dam idea however. Since your truck is so high, it's not really going to do much to prevent air from going underneath without a significant increase in frontal area. I think you would see cleaner airflow with belly-panning.
that said, a lot suv's i see have signifficant airdams at the bottom.. usuallt spit in a wheel dam section and some sort of semi bellypan...

any little improvement is a good think... might not show up on the fuel charts in a big way, but all bits add up

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