Variable compression ratio

The compression ratio of an internal combustion engine refers to the ratio of the maximum volume of the combustion chamber (when the piston is at the bottom dead center) to the minimum volume of the combustion chamber (when the piston is at the top dead center). A higher compression ratio can lead t

Variable Compression Ratio ( VCR ) - The Technical Forum Archive

Nelson Racing Engines - @_techmech posted this pic of this

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variable compression ratio – eEuroparts

VC-Turbo Engine Technology

General Motors' New Variable Compression Engine Patent Explained