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Old 06-19-2008, 06:58 PM   #21 (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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@holypaulie

you should check out autospeed.com

they did some articles on hood vents. wich where pretty well researched
if you want to get it all right you should measure the pressure in different locations under and on the hood to see where the vent needs to be, finding the right spot is much more important than getting the right shape i think .

also this may show your car has other areas like the wheelwells wich you might (also) use to your advantage

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