Improved precision, piston and ring manufacturing technology, better engine oils, and superior cylinder wall finishing techniques make it possible for engine builders to go to ever-thinner rings.

Find out how much your piston rings have to do with achieving horsepower and explore your ring options. Find all the details inside Circle Track Magazine.

Discover why engines typically use three piston rings and how these small components play a crucial role in performance, efficiency, and longevity. This video explains the purpose of each ring,the ...

Piston ring grooves serve a larger purpose than simply supporting the rings. They impact combustion sealing, oil control, friction, and many more engine attributes.

For continuous measurement of oil-film-thickness on the piston ring, an electrical capacitance method has been applied. The capacitance pick-up fixed in the ring had an electrode with or without an ...

On initial start-up, getting a quick piston ring seal is critical—and having a clean, properly lubricated cylinder wall accelerates this process.

The earliest evidence of piston rings could be found in locomotive steam engines in the 1800s. As technology evolved, the rings turned into cast iron pieces that provided better sealing properties ...

The flow into and out of the piston top-land crevice of a spark-ignition engine has been studied, using a square-cross-section single-cylinder engine with two parallel quartz glass walls which permit ...