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Central Port Injection

1. An early fuel-injection system installed on the 4.3L Chevrolet Vortec V-6, using one throttle-body, injection-style injector to pulse fuel directly to individual nozzles at the intake ports. 2. A fuel metering system consisting of one central fuel injector and separate poppet nozzles

Central Processing Unit

Portion of the computer which calculates information

Centrifugal

1. Moving away from the center or axis 2. to develop a force that is progressively away or outward from the axis

Centrifugal Advance

A mechanical means of advancing spark timing in a conventional distributor with flyweights and springs.

Centrifugal Brake Drum

Combining the strength of steel with the friction characteristics of cast iron by spraying a lining of cast iron on the inside of a steel drum while hot.

Centrifugal Clutch

A clutch that utilizes a centrifugal force to apply pressure against a friction disc in proportion to the speed of the clutch.

Centrifugal Filter

A rotating filter that relies on centrifugal force to separate impurities from the fluid, usually oil.

Centrifugal Filter Fan

A fan found on the air-pump drive shaft used to clean the air entering the air pump.

Centrifugal Force

The outward force, away from the center (axis) of rotation, acting on a revolving object, increasing as the square of the speed.

Centrifugal Supercharger

A mechanically driven, forced-induction system using centrifugal force to increase air pressure.

Centrifugal Supercharger

A supercharger that produces boost in a linear fashion--i.e., it produces more and more boost as the engine spins faster. This is in contrast to a Roots-style supercharger or a twin-screw supercharger, each of which produces full boost as soon as the driver stomps on the gas pedal. Of these three supercharger designs that are available for vehicles today, the centrifugal supercharger looks (and, in some ways, acts) the most like a turbocharger. Centrifugal supercharger kits are available for a tremendous variety of vehicle and engine combinations.

Centrifugally Disengaging

A one-way roller clutch in which the rollers disengage with the race, in over-running conditions.

Centrifugally Engaging

A one-way roller clutch, in which the rollers make or maintain contact with the race in over-running conditions.

Century Mark

100 miles per hour.

Ceramic

A material composed of silica and earth elements used as an insulator, as in spark plugs.

Ceramic Insulator

The non-conductive material used, for example, in spark plugs, to insulate the center electrode from the ground.

Cerclip

English term for Snap-ring

CES

Clutch engage switch

CESS

Cold engine sensor switch

Cetane

A primary reference fuel (C16H31) for describing the ignition quality of diesel fuel.