A friction device used to connect the engine to the drive train. Used when changing gear ratios during acceleration. Can connect or disconnect the engine and the drive train at driver's will. The space remaining at the top of the cylinder when the piston is at the top dead center position. Where the fuel-air mixture begins to burn.
Compression makes combustion more effective and increases engine efficiency.
The ratio of the cylinder volume with the piston at bottom dead center to the cylinder volume with the piston at top dead center. The arm that connects the piston to the crankshaft and converts the reciprocating motion into rotary motion. Any car with a folding roof. Term used in U.S. since the 1930s. The conventional body has 4 doors and a folding top with roll-up windows.