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Old 05-16-2009, 06:11 AM   #6 (permalink)
sepp
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Join Date: Jan 2009
Location: belgium
Posts: 60

the jeep - '02 nissan kingcab
Last 3: 29.07 mpg (US)
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make sure that there is an opening under the engine compartment that is at least as big as all the frontal openings from where the air can penetrate into the compartment. also make sure the opening is placed as far back as possible.
but i would consider reducing the frontal openings aswell.

now it seems your pan traps the air or slows it down, turning your car into a parashute. at best it slows you down, at worst it could blow off your pan at high speed so beware.
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