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Crankshaft ZRP - BMW M3 S14 B23

ZRP - Forged & billet engine internals


Crankshaft ZRP - BMW M3 S14 B23 The ZRP crankshaft for BMW M3 S50B30 is manufactured from aerospace grade 4340 solid billet steel and no compromises have been made to the quality of the material, in order to ensure the best possible product. This crankshaft designed carefully from our vast experience, to provide the best possible engine performance and the production process consist of very strict inspections to ensure that they have the best quality and tight tolerances for perfect fitment. The BMW crankshaft is fully balanced to 2gr.

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Article no.: C-BMW-003

Crankshaft ZRP - BMW M3 S14 B23

The ZRP crankshaft for BMW M3 S50B30 is manufactured from aerospace grade 4340 solid billet steel and no compromises have been made to the quality of the material, in order to ensure the best possible product. This crankshaft designed carefully from our vast experience, to provide the best possible engine performance and the production process consist of very strict inspections to ensure that they have the best quality and tight tolerances for perfect fitment.


The BMW crankshaft is fully balanced to 2gr.cm +/- 0.1 using state of the art Sunnen machines, balance results report included. Check the individual features for your application below.


Product Features and Design

Undercut profiled counterweights to minimize weight and reduce rotating mass.
Aero-Wing counterweights for reduced windage to increase horsepower
Drilled rod journals for weight reduction.
Straight oil holes for better oiling of the rod journals
Chamfered oil holes
Journal radius disperse load stress.
Tapered rod journals for weight reduction.
Technical Features of ZRP Crankshafts

Full CNC machining.
ION (Plasma) Nitride process for hardening.
Multi Stage Heat Treatment.
Shot peening for stress release.
100% Magna- fluxing for flawless surface finish.
Heat treatment for superior wear resistance.
Micro-polishing for longer bearing life.
Sonic tested and X-rayed to ensure a reliable end product.

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