Unless you drive a Wankel rotary, your combustion engine vehicle has pistons, and each of those pistons has three rings. Why ...

For how basic it is, a car engine's four cycles of combustion are truly fascinating. A perfectly timed valvetrain ensures that the air/fuel mixture enters, compresses, and then exits without piston-to ...

Determining the compression ratio of an automobile engine is no easy task. It'snotdone by glancing at the "13:1" that's printed on the piston box. Instead it involves the use of a formula that ...

The folks at TRW have come up with a revolutionary idea for reducing the piston ring drag of the top compression ring. It is called the Pressure Balance Ring (PBR). Essentially, the PBR design amounts ...