Wiseco Sport Compact Piston and Ring Kit Suit Nissan RB26DETT, 86.5mm Bore

Features:

• Armor Plating is an abrasion resistant plating that raises the hardness of the aluminium, increases the durability of the ring grooves, prevents micro-welding of the piston rings, reduces carbon buildup and combats corrosion caused by detonation.  

• ArmorGlide Skirt coating ~ helps reduce piston rock in the bore and increases power

• Contact reduction grooves ~ helps to reduce the contact area against the cylinder wall during piston rock. They also provide the added benefit of disrupting the flame travel into the crevice area, which helps to reduce the potential for detonation.

• Accumulator Grooves ~ Ring flutter is a condition which occurs when combustion gases build up between the top and second piston rings; the Accumulator Groove is designed to reduce this pressure. It's machined into the land between the two rings and provides additional volume where the combustion gases can collect to reduce the chance of flutter. In the process, it also helps to promote top ring seal.

• Oil Squirt Notch ~ Some late-model engines, like the Nissan RB's, 5.0-liter Ford Coyote engine and GM LS, have variants where piston oil squirters are installed. Oil squirters can also be installed with various aftermarket kits; These squirters are designed to cool the underside of the piston with engine oil

Part # K591M865AP