Nissan S15 Mission Input Set: WPC Treatment Series
View the full price list for WPC treatments and options. (PDF)
See how WPC treatment improves surface hardness.
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The Gateway of Power: The Science of WPC Treatment®
WPC Treatment is a revolutionary surface refinement technology that drastically improves metal characteristics.
By bombarding the metal surface with ultra-fine spherical shots at high speeds (200m/s), we achieve three critical performance upgrades for your input shaft:
Increased Fatigue Strength: Instantaneous heating and cooling during impact micro-refines the crystal structure, strengthening the shaft against high-torque stress.
Higher Surface Hardness: Repeated plastic deformation creates a work-hardened, toughened layer to prevent wear and pitting on the gear teeth.
Superior Lubrication: Micro-dimples on the surface act as oil reservoirs, preventing oil film breakdown even under high-RPM operation.
Advanced Surface Technologies
MoS2 Shot Treatment (Solid Lubricant) Fuses a solid lubricant layer of Molybdenum Disulfide (MoS2) directly to the metal surface without binders. This maximizes the low-friction effect, allowing for smoother gear engagement and reduced heat generation.
Sirius Finish® (Precision Polishing) A high-precision polishing process that achieves a mirror-like smoothness (thousands-grit level). It refines the WPC-strengthened surface to reduce mechanical drag to the absolute minimum while maintaining the part's geometric integrity.
Composite Treatment Benefits
(A) WPC + Sirius: Optimized for those seeking maximum strength combined with a highly refined surface for smoother operation.
(B) WPC + MoS2: Focused on high strength and a massive reduction in sliding resistance.
(C) WPC + Sirius + MoS2: The Ultimate Racing Specification. Engineered to deliver the lowest possible friction and highest fatigue resistance for the most demanding drivetrain setups.
Note: WPC Treatment® and Sirius Finish® are patented technologies of
Fuji Manufacturing Co., Ltd.
We can customize the treatment process based on your specific racing conditions and requirements.
