The ZRP crankshaft for the R53 Mini Cooper S (W11B16A) 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 crankshaft is fully balanced to 1gr.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:
- Solid profiled counterweights aimed for maximum durability and increased crankshaft momentum.
- Rod lightening holes.
- 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.
Dimensions
Specifications
Shipping
- Dispatch times and delivery estimates are shown at checkout.
- Tracking is provided where available.
- Delivery times are estimates and may vary due to courier delays.
See our full Shipping Policy for more information.
Returns
- Returns are accepted in line with our policy and eligibility requirements.
- Items must be returned unused and in original condition (where applicable).
- Refunds are processed after inspection/approval.
See our full Returns Policy for more information.
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