Abstract: A flywheel for use in an automobile between an engine and a clutch assembly is provided. The flywheel is a circular member having an engine side and an opposite clutch side. An aperture is formed in the circular member having an axis, and the aperture is used to operatively attach the flywheel to the engine. A plurality of clutch fins and/or grooves are formed on the clutch side adjacent the outer edge of the circular member and spaced radially about the axis of the aperture of the flywheel. The clutch fins have a face that is generally coplanar with the clutch side of the circular member. The fins and grooves work to cool the internal components of the engine. Optionally, a second set of grooves and fins may be formed on the engine side of the flywheel to further aid in cooling the clutch disc and other engine components.

Abstract: A clutch disc for use in an automobile engine in communication with a flywheel is provided. The clutch disc includes a cylindrical disc comprising a central aperture. One or both sides of the cylindrical disc includes a clutch lining having a high coefficient of friction. The clutch lining is configured to interact with the flywheel during normal operation of an engine. The clutch disc further includes a plurality of perforations through the clutch disc, including the clutch lining and cylindrical disc. The perforations through the clutch disc provide a means for heat removal from within an engine and aid in extending the life of the clutch disc and clutch assembly.