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Total Seal Piston Ring Sets

Total Seal Piston Ring Sets

Looking for replacement piston rings for your aircooled or watercooled Porsche engine?

Nikasil bores commonly found in Porsche engines require special piston rings for proper function including the use of low tension piston rings. Hard chrome rings and standard or high tension rings used with cast iron bores aren't compatible with Nikasil cylinders. As a result, oil consumption in engines with Nikasil bores, especially in a horizontally opposed engine, has been historically higher than in other engines. Increased consumption can be attributed to the lack of gravity to assist with removal of oil from the bores, use of piston squirters providing added oil volume in the cylinders, and reduced oil control ring tensions less than 10 lbs, compared to 20-24 lbs of tension found on standard oil controls.

The second piston ring is often called the second oil control whose function has been measured to be 85-90% oil control vs 5-10% compression. The use of gapless second rings help reduce oil consumption and smoking at startup common on horizontally opposed Porsche and VW engines by improving the second ring's oil control functionality. Additionally, we have Total Seal OD lap their second rings, something no off the shelf ringset provides. For those of you who do not know what OD lapping is or what it does, top piston rings are always OD lapped. This ensures the ring is round and "light tight", ensuring proper ring seal. Second piston rings out of the box are not OD lapped and often we find they are not light tight, requiring the engine builder to light check the rings to ensure they will seal. Engines that burn more oil or take longer for the rings to seal up often can be attributed to rings that aren't light tight. We offer performance ring sets made exclusively for LN Engineering by Total Seal Piston Rings that are optimized for use with Nikasil plated bores and feature OD lapped second rings, ensuring that the second piston ring is light tight, in the process highlighted in the video below:

Don't see the ringset you are looking for? We are dealers for JE, CP, and Mahle Motorsports and can also supply custom ringsets for any piston. To provide the correct ring for your pistons, we will need to know about your application as well as ring groove widths and depths. Options include gapless rings and are available in different materials and with specialty coatings for reduced friction and improved ring seal.

The easiest way to put in a request for a replacement ring set for an unlisted applicationis to open a support ticket at http://support.lnengineering.com.. We will need to know piston ring groove widths and depths as well as what type of cylinders you are using.

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48 per page

18 Item(s)