iE SPEC JE Forged Pistons
To complement the strength of our iE Tuscan I-Beam connecting rods for the Audi B9 3.0T EA839 engine, we have collaborated with the experts at JE Pistons to produce an equally robust forged piston set. Combination tested for up to 1000ft-lbs of torque, your iE connecting rod and JE Piston combo will offer unparalleled bottom-end strength for your high-boost build.
- Complete set of six pistons with pin locks, Pro Seal rings, and wrist pins
- iE Spec forged piston designed for high-power EA839 builds
- Direct fit for iE Tuscan 155X22MM connecting rods
- Includes JE trademarked tuff-Skirt coating for long life
- Massive 22mm wrist pin sizing for reliability under high boost pressures
- Drop-in factory bore sizing for stock cylinders
- Bore: 84.5MM (stock)
- Wrist pin diameter: 22mm
- Material forging: 983M
- Average weight: 307 grams
OPTIMIZED COMPRESSION RATIO
Extensive in-house testing has revealed that the factory piston compression ratio in the EA839 3.0T engine is susceptible to excessive knock in very large turbo/high-boost builds. In response, we have custom spec our own lowered 10:1 compression ratio. This compression has proven to reduce cylinder pressures safely without going so low to affect engine responsiveness. This compression ratio will also work well with the complexity and precision of the direct injection system when tuning your large turbo high-boost build.
JE has manufactured a strong, light piston forging for extreme operating conditions in high-powered, high-boost, and professional motorsport competition. This high-performance alloy is suited for iE connecting rods, tolerating acceleration forces of more than 8000 Gs and directional changes exceeding 200 times a second! The piston dish and dome design have been specifically engineered for the Audi B9 turbocharged 3.0L engine, with special care taken to provide properly placed valve reliefs for smooth-flowing combustion characteristics.
LEADING QUALITY CONTROL
JE Pistons is a leader in piston manufacturing and quality control. Each piston forging is verified in a dedicated manufacturing cell, resulting in tighter tolerances in 14 critical areas. An in-depth 23-point quality inspection is performed in an environmentally controlled lab maintained at 68 degrees with 40% relative humidity. This ensures consistent and exact measurements and guarantees dimensional conformity.
- Audi S4 2017-2024 (B9) EA839 3.0T
- Audi S5 2017-2024 (B9) EA839 3.0T
- Audi SQ5 2018-2024 (B9) EA839 3.0T