ZRP connecting rods for Audi 2.0L TSI with timing chain, HD series

"Heavy Duty" I-Beam connecting rods for Audi/VW 2.0L TFSI, TSI (chain drive) are designed for high power/supercharged applications. Made from the finest raw materials, high strength 4340 steel with a specially optimized shape for high performance and extreme durability. They feature a straight-cut pin end for increased durability, meaning they can only be used with aftermarket pistons. The bushings are made of AMPCO 18 material, which offers excellent wear and fatigue resistance, and have a radial groove that acts as an oil reservoir. They undergo shot peening to relieve material stress and multi-stage heat treatment to increase rigidity. Strict tolerances in the production process ensure a perfect fit and optimize oil clearances. Bending and twisting are strictly controlled. Each connecting rod includes ARP 2000 head bolts rated at 220,000 psi. Optionally, 260,000 psi ARP L19 material can be purchased as an upgrade. The complete kit includes ARP molybdenum lubricant and comprehensive assembly instructions.

Additional machining processes:

Straight-cut pin end: suitable for aftermarket pistons.

Centering bushings for perfect fit and precise reassembly.

Flanged cap relief for increased big end integrity in extreme applications.

Grooves on the thrust face for weight reduction.

ZRP connecting rod technical features:

I-beam shape for increased rigidity.

Two-piece forging for high strength.

Shot peening for increased fatigue resistance.

Magnaflux inspection ensures forged material consistency meets our high quality standards.

Double ribbed caps for increased support.

Multi-stage heat treatment for maximum strength, dimensional stability and fatigue resistance. CNC machined for superior tolerances, accurate to within 0.0002".

Center-to-center distance maintained within 0.001" tolerance.

Finite Element Analysis (FEA): computer-generated stress analysis for connecting rods.

Optimal balancing for weight-matched sets to ±1 gram.

They feature a straight-cut pin end for increased durability, so they can only be used with aftermarket pistons. The bushings are made of AMPCO 18 material, which offers excellent wear and fatigue resistance, and have a radial groove that acts as an oil reservoir. They undergo shot peening to relieve material stress and multi-stage heat treatment to increase rigidity. Strict tolerances in the production process ensure a perfect fit and optimize oil clearances. Bending and twisting are strictly controlled. Each connecting rod includes ARP 2000 cap bolts rated at 220,000 psi. As an optional upgrade, 260,000 psi ARP L19 material can be purchased. The complete kit is supplied with ARP molybdenum oil and comprehensive assembly instructions.

Additional machining processes

Straight-cut pin end: suitable for aftermarket pistons

Centering bushings for perfect fit and precise reassembly

Flanged cap relief for increased big end integrity in extreme applications

Grooves on the thrust face for weight reduction

ZRP connecting rod technical features

I-beam shape for increased rigidity

Two-piece forging for high strength

Shot peening for increased fatigue resistance

Magnaflux inspection ensures forged material consistency meets our high quality standards

Double ribbed caps for increased support

Multi-stage heat treatment for maximum strength, dimensional stability and fatigue resistance

CNC machining for superior tolerances, accurate to within 0.0002"

Center-to-center distance maintained within 0.001" tolerance

Finite Element Analysis (FEA): computer-generated stress analysis of connecting rods

Optimal balancing for weight-matched sets to ±1 gram