ZX4-HDG4 - HD/Race Sprung 4 Pad

ZX4-HDG4 - HD/Race Sprung 4 PadSpecifications: HD Race Sprung 4 Pad Clutch Kit Item Description: HD Race Sprung 4 Pad Product Weight (lbs.): 30 Torque Capacity (ft lbs.): 574 Torque Capacity Over OE: 93% Disc Material: Ceramic Clutch Disc Diameter (Inches): 9. 4 Clutch Disc Diameter (Millimeters): 240 Input Shaft Diameter (inches): 1 Pressure Plate Type: Heavy Duty Flywheel Type: Prolite Warranty: 12 Months (view details) Description: The ZX4 HDG4 kit by ACT features their most

Specifications: HD/Race Sprung 4 Pad Clutch Kit

• Item Description: HD/Race Sprung 4 Pad
• Product Weight (lbs.): 30
• Torque Capacity (ft/lbs.): 574
• Torque Capacity Over OE: 93%
• Disc Material: Ceramic
• Clutch Disc Diameter (Inches): 9.4
• Clutch Disc Diameter (Millimeters): 240
• Input Shaft Diameter (inches): 1
• Pressure Plate Type: Heavy Duty
• Flywheel Type: Prolite
• Warranty: 12 Months (view details)

Description: The ZX4-HDG4 kit by ACT features their most popular Heavy Duty pressure plate coupled with a 4-pad spring-centered race disc. ACT Heavy Duty pressure plates utilize an exclusive diaphragm design to enhance clamp load, reduce deflection, and maximize clutch life. Each diaphragm undergoes a four-stage, heat-treating process for exceptional performance. Precision cover stampings contribute to the rigidity and consistency of ACT pressure plates.

The 4-pad spring-centered race disc is engineered with a spring-center to properly damp torsional vibrations, ensuring quieter operation and resisting failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and enhance strength and reliability. Engagement with the 4-pad spring-centered race disc is characterized by its harsher feel, but shifting is faster. This disc is particularly suited for smaller disc sizes in smaller engines.

Key Characteristics:

• Feel: Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle.
• Life: Moderate friction life, extended by ACT's exclusive diaphragm design.
• Quality: Carefully engineered, precisely assembled, accurately balanced, utilizing select ceramic friction materials for high heat tolerance and maximum performance.

Recommended Use: Recommended for high horsepower street or race use, ideal for drivers seeking a robust clutch system optimized for demanding performance applications.

ACT Difference: 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability.