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Old 06-07-2009, 04:58 AM   #4 (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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one thing to keep in mid is where your engine picks up it's air... it could be an area direcly or indireclty fed air by an "air leak" around the rad.

i found in a grillblock experiment that fe can suffer is the airflow to the engine is restricted even if aero is improved.

just mention it so you can look at the big picture.
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