Quote:
Originally Posted by dwtaylorpdx
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
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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?