Overview

IE race spec JE FSR stroker pistons are custom made to order, please allow up to 5 - 6 weeks for delivery.

JE FSR Forged Pistons
JE's state of the art FSR forgings reduce mass and wear caused by friction without sacrificing strength. This is accomplished by using an asymmetrical skirt design instead of the traditional full-round skirt, also this reduces weight significantly. Designed specifically for boosted applications, FSR forgings utilize a larger, stronger skirt on the side of the piston which receives all the side loading during high pressure combustion process. The opposite skirt is smaller for light weight. FSR pistons still use a full width wrist pin and optimal large, wide pin bosses to carry the load of a turbocharged engine without wearing or ovaling out the pin bosses. In order to combat in cylinder noise commonly found in lightweight pistons, these feature an offset pin and keep very quiet in the bore. FSR pistons recieve strict quality control and 23 point post production inspection to ensure exact finish and tolerances in critical areas making the lightest, truely heavy duty piston on the market.

JE FSR design requires oil squirters to be modified or spaced out for clearance on some 1.8T blocks.

Features
83MM bore, 9.0:1 CR, 92.8MM stroke,
Included tool steel wrist pin upgrade
Included ceramic dome coating
Included tuff-Skirt coating
Upgraded oil ring rail support
Upgraded lateral gas ports
Includes JE wire locks and Pro Seal piston rings
No dish deburring or preperation needed
Individually prepared inspection report of dimensional conformity
Each piston individually serialized for complete traceability
23-point post-production inspection conducted by certified personnel
Tighter tolerances on 14 critical areas of the piston
All critical surfaces machined in dedicated Critical Manufacturing Cell

Included Piston Upgrades

Tuff Skirt ﾮ
JE Pistons trademarked coating Tuff Skirt is a lubricating, anti-friction / anti-wear coating applied to the piston skirt designed to withstand many different types of endurance racing.

Thermal Barrier Crown
The thermal barrier crown coating is applied to the piston dome and is designed to reflect heat into the combustion chamber. This increases exhaust gas velocity, greatly improves scavenging potential, and extends piston life by decreasing the rate of thermal transfer.

JE Tool Steel Wrist Pins
JE Tool Steel Wrist Pins are through-hardened high-carbon bearing steel for forced induction or nitrous-fed racing applications and offer high-strength with low ductility. Employing the latest in technology, each pin is checked to ensure the highest quality and roundness