Piston ring end gaps matter more than you think because they manage pressure and heat, preventing catastrophic failures ...

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 ...

Of all engine performance parts, piston assemblies usually extract the largest bite from a Ir. Stock engine builder's budget. Of course this is not always the case. Some piston manufacturers, such as ...