Description
Unlock the full performance potential of your Audi B9 3.0T engine with Integrated Engineering’s Tuscan 155X22 Connecting Rods. Engineered in-house with motorsport-level precision, these rods are built for high-boost, high-horsepower applications where strength, durability, and weight optimization are critical. Featuring IE’s exclusive Tuscan I-Beam design, these connecting rods eliminate the limitations of the factory units and provide the confidence needed for aggressive tuning and track-level abuse.
The IE Tuscan Advantage
Developed specifically for the EA839 3.0L Turbocharged V6, these connecting rods address known weak points in the OEM rod design. Advanced FEA simulations and CAD modeling were used to optimize the beam geometry and distribute stress loads evenly. The result is a set of connecting rods with exceptional resistance to bending and fatigue, significantly improving engine reliability in high-output builds.
Optimized Lightweight Design
Strength without excessive mass is key in any performance application. IE’s engineering team carefully analyzed stress points to retain material only where needed, resulting in a lightweight I-beam structure that maintains durability under extreme loads while reducing reciprocating mass. At an average weight of 630 grams, these rods contribute to faster engine response and improved balance.
Precision Manufacturing & Materials
Each rod is forged from vacuum-drawn 4340 chrome moly steel for maximum structural integrity. After forging, rods undergo:
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Shot peening to improve fatigue strength
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Magnaflux inspection to ensure material consistency
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Precision CNC machining and diamond honing to tolerances as tight as 0.00025"
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Weight-matched balancing to within ±1 gram per set
Genuine ARP 2000 3/8" fasteners ensure secure cap retention and long-term durability.
Technical Specifications
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Max Torque Capacity: 1,000 ft-lbs (per set of 6 rods)
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Center-to-Center Length: 155mm
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Big End Diameter: 58.74mm
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Small End Diameter: 22mm (tapered)
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Journal Width: 20.04mm
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Material: 4340 Chrome Moly Steel
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Bolts: ARP 2000 3/8”-1.5”
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Average Weight (w/ bolts): 630 grams
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Bearing Compatibility: OEM Audi 3.0T
Installation & Torque Procedure
Proper bolt stretch or torque is essential for achieving optimal big-end clearances and securing cap alignment. Use the provided ARP assembly lube during installation.
Step 1 – Pre-Torque Procedure
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Torque bolts to 50 ft-lbs (3 times), breaking them loose in between, to ensure full thread seating.
Step 2 – Final Torque
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Torque bolts to 50 ft-lbs using a torque wrench, or stretch bolts to .006" using a calibrated stretch gauge.
Note:
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Always use ARP assembly lube
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Never exceed bolt stretch specification
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Do not reuse bolts if stretch is exceeded
Designed for High-Boost Builds
Whether you're running a hybrid turbo setup or pushing the limits of a custom build, the IE Tuscan rods deliver track-proven reliability and peace of mind. Designed to work seamlessly with IE-spec JE forged pistons for the 3.0T EA839 engine, this setup is ideal for serious enthusiasts building for big power.
