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Old 10-05-2009, 07:47 PM   #11 (permalink)
micondie
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moby van - '03 Dodge Caravan SE
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Quote:
Originally Posted by dwtaylorpdx View Post
On a lot of sedan race cars we add spacers under the hood hinges to let the high pressure area in front of the firewall loose. It often ads 4 or 5 mph down the straightaway. Anybody tried it for mileage?

Dave
How high do you space the hood? Is it high enough to direct some of the air flow upward so it gets a head start flowing over the roof or is it just high enough to bleed off some of the high pressure air into the engine compartment?

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