NPR – As Used by Leading Forged Piston Manufacturers

NPR piston rings¬†“Tuning” rings are widely regarded as the piston ring of choice for performance engines. With their range of “Tuning Rings”¬† they combine steel nitrided compression rings with “Nifflex” three piece low friction steel oil control rings.

Rings are available in many bore size configurations and heights. Many forged pistons are supplied with NPR rings from the factory so you NPR Tuning rings are very often direct replacements for the rings supplied by piston manufacturer.

NPR Piston Rings Are Leaders in the Motorsport World

Our products can be found in almost the whole motor sports sector. The following is a small selection:

  • Formula 1
  • GT Cup
  • Motorcycling
  • Nascar (National Association for Stock Car Auto Racing)
  • Rally sport
  • Touring cars
  • Truck racing
  • Indy Car racing

NPR Offer The Following Piston Ring Products

In addition to the range if “Tuning” rings, NPR also supply standard replacement ringsets in identical quality to Original Equipment. As a development partner to all leading vehicle manufacturers, NPR can offer various ring types and materials to suit each application.

  • cast iron rings
  • steel rings
  • 2- piece and 3-piece oil control rings
  • axially thin rings
  • nitrided rings
  • diverse galvanic or other surface treatments
  • chrome plating
  • PVD coating
  • DLC coating

A listing of off the shelf parts can be found in the link below. For special requirements, please contact us.

NPR Europe Website

Tuning Rings Catalogue

 

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NPR "Nifflex" Three Piece Steel Oil Rings

NPR “Nifflex” Three Piece Steel Oil Rings

NPR "Tuning" Ring Pack 1.00 / 1.20 / 2.00 mm Ring Heights

NPR “Tuning” Ring Pack 1.00 / 1.20 / 2.00 mm Ring Heights