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A Forged Engine refers to an engine where some of the metallic parts have been made via the forging process as
opposed to casting for improved strength and stress endurance. Before discussing anything relating to forged vs cast metals or forged engines parts both processes will be explained briefly. Cast metals or casting is the process of pouring molten metal into a mould which is in the shape of the desired metal component. Forging is required when the engine produces large amounts of torque, horsepower, is high revving or any combination of the three. It's difficult to say exactly what amount of power and/or revs an engine would have to be rated at to need forged parts but these three factors can put extra stress on certain components. The common parts of an engine to be forged will be the pistons and the crankshaft as these parts are subjected to the most stress from the explosions in the cylinder but the camshafts and other moving parts like the valves can also be forged. Castings have their advantages too which make them the popular choice when the strength of forged metals isn't required.
Forged engine parts can be found in supercars and other vehicles with engines of similar output and ratings but there are many aftermarket forged parts. Other parts of a vehicle can also me made with forged metals such as body panels, parts of the chassis, suspension or even alloy wheels. |
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