Description
Arlows 4x Steel Connecting Rod 130.5mm Subaru WRX STi EJ20 EJ205 EJ25 EJ257 (H-Beam)
Fitting at:
Subaru WRX STi - 2.0 2.5 (EJ20, EJ205, EJ25, EJ257)
This highquality con-rods are made of 4340 steel (40CrNiMoA).
The H-shank enables maximum stability during minimum weight.
Thereby they're perfectly suited for high-engine-speeds.At first this con-rods got many times hardened to achieve an durability of HRC35-38.Finally they got shot-blasted to strenghen the surface density to the maximum.Before all of our con-rods are 3D designed and finally CNC-milled, it's possible to simulate a lot of charge states and tensions.The small-end-bearing is made of bronze, and is suited with an lubrication bore.
All our connecting rods are equipped with high-strength Pro-Series 14.9 screws ! These have a tensile strength of 1490N/mm^2. Furthermore, the threads are rolled which also increases the flank thickness by 30%.
Allowance:
Piston pin bore: +-4/1000mm
Crank pin bore: +-4/1000mm
Verticality, paralellism und deformation: +-5/1000mm
Weight: +-1 Gramm
Technical specifications:
Material: 4340 Stahl (40CrNiMoA)
Tenacity: >1250N/mm²
Length: 130,5mm
Piston pin bore: 23mm
Crank pin bore: 55mm
Employment:
- approved for up to 9000upm
- approved for up to 200hp per con-rod
Item number: | AR12073 |