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Old 09-06-2008, 05:58 PM   #8 (permalink)
Ryland
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Join Date: Jan 2008
Location: Western Wisconsin
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honda cb125 - '74 Honda CB 125 S1
90 day: 79.71 mpg (US)

green wedge - '81 Commuter Vehicles Inc. Commuti-Car

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ideal air velocity is around 300 feet per second, faster then that and you get restriction problems, slower then that and you loose torque and efficiency, it's similar to running to large of an exhaust pipe, if less restriction was the key then running without any air box and no air intake tubing would be ideal and everyone would have their exhaust exit the side of their car, but that is not how engines work best.
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