Thread: engine drop
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jemmy jemmy is offline
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Join Date: Feb 2011
Posts: 2
While some of the hoods featured an open cowl, many offered opening cowls controlled by the engine's vacuum system. When the operator stomped the throttle to the floor, the drop in vacuum triggered the cowl flap to open. This allowed the engine to breathe the horsepower-enhancing cool air charge directly off of the vehicle's cowling. While drag racing vehicles can benefit from a forward-mounted air scoop to funnel cold air in as the vehicle charges in a straight line down the track, circle track racers still take the cool air charge from the rear of the hood via an air box.User Cars Calgary
Old 02-04-2011, 01:02 AM
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