Page 10 of JE Pro Seal Catalog by JE Pistons

11 D017 .062" .045" .058" .038" .062" .031" D020 i D031 .048" (1.2mm) (1/16") (1/16") (1.5mm) .034" .121" .170" .121" .170" D014 RING FACE COATINGS JE offers a variety of ring face coatings specifically designed for individual operating requirements. The main types are Plasma Moly, CrN (Chromium Nitride), TiN (Titanium Nitride), and base ring material gas nitriding. These face coatings provide a wear and scuff resistant face against the cylinder wall while also providing a very low coefficient of friction. These coatings are applied using PVD and PACVD (Plasma Assisted Chemical Vapor Deposition) processes and are the premier ring coatings available today. Contact your JE Pro Seal sales representative for more details. All non-stainless steel JE Pro Seal rings have a corrosive resistant coating that is specifically designed to enhance oil retention and to help prevent scuffing during early engine operation or break in . Plasma Moly filled ductile iron rings are coated with a manganese phosphate while steel rings are coated with an iron oxide compound known as Ferrox. Both of these coatings prevent rust from accumulating while the rings are in the package and provide a porous outer layer that retains oil upon installation, to insure proper lubrication at engine start up. DYKES RING STANDARD RING ABOUT DYKES RINGS If you want maximum ring seal for your drag racing application, talk to your JE salesman about Dykes Rings. On the power and compression strokes of your engine, the gas pressure loads the ring against the cylinder wall and the bottom of the ring groove to create a better seal for increased horsepower. On the remaining two strokes, the ring relaxes giving you the reduced pressure created by the rings natural radial tension thus reducing frictional drag. The four most common types of Dyke cut top rings are the D017, the D031, the D014 and the D020 i. All D017 and D031 rings have an axial height of 1/16". The D014 and the D020i are metric rings and have axial heights of 1.2mm and 1.5mm respectively. Both the D017 and the D014 are for use on forced induction and nitrous applications. Although the D020 i can be used on forced induction engines as well, it is generally used on naturally aspirated engines. The D031 ring is for use only on naturally aspirated engines.. CrN (Chromium Nitride) A thin film applied to the ring face which provides a moderate level of surface hardness with an extremely low coefficient of friction. Gas Nitrided A process used to harden the perimeter of a ring where nitrogen atoms penetrate the base material and form an extremely hard outer layer that provides excellent wear and scuff resistance. TiN (Titanium Nitride) Similar to CrN coating; TiN is generally harder than CrN but w/ similar wear resistance. Plasma-Moly Is a face coating which provides a hard, wear resistant surface on a barrel shaped ring face that is able to maintain a very low coefficient of friction. The process involves spraying an alloyed powder that contains various chemistries of Molybdenum, Nickel, Chromium and small amounts of other trace elements, into a small channel on the face of the ring by forcing the powder through an electrical arc in the presence of compressed Argon or other gases. Under extreme heat, this powder turns into molten droplets and is carried to the ring on a stream of shielding gas, filling the inlay groove, bonding to the face of the ring. RING MATERIALS Most U.S. domestic original equipment engines use cast iron top and second compression rings. This material is fine for low rpm applications with a relatively low compression ratio. JE Pro Seal rings are constructed from either ductile iron, steel, or stainless steel for greater strength and elasticity. Ductile iron is a very versatile material that is good for most high performance applications. These rings are available with either a plasma moly inlay face or hardened for nitrous, turbo and blown applications. Steel and stainless steel rings are better suited for extremely high rpm applications. The higher tensile strength of steel also helps it to withstand the added abuse of high power output engines. Both steel and stainless steel are commonly used in applications where extremely thin and narrow rings are required. Use the performance matrix on page 16 to help determine which ring material and style suits your racing engine or call your JE Pro Seal sales representative. RING FINISHES AND OPTIONS RING AXIAL SIDE COATINGS

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