Variable Valve Control
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VVC (Variable Valve Control) is an automobile variable valve timing technology developed by Rover. VVC varies the duration and magnitude of lift applied to the fuel/air valves by effectively raising and lowering the camshaft through a hydraulically controlled eccentric cam at each end of the shaft. This system is used in the following MG and Rover cars: "Tomcat" Rover 200 (Mk2) coupe and cabriolet, Rover 200 (Mk3) Vi and Rover 200 (Mk3) BRM, MGF, Rover 25 Gti, MG ZR160, MG TF 160. Unlike the Honda Variable Valve Timing (VVT) which had two valve timings, the VVC engine is continuously variable throughout its range.
The VVC engine is also fitted into these non MG/Rover cars: Ariel Atom, Lotus Elise, Caterham 7, Caterham 21.
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