ACT Clutch ZM2HDR4 HD/Race Rigid 4 Pad Clutch Kit for 90-97 & 99-05 Mazda Miata
*We keep this item in stock for immediate shipment. Place your order before 10am EST on a weekday and we'll ship the same business day*
Part Number: ZM2-HDR4
Specifications:
Item Description: HD/Race Rigid 4 Pad
Product Weight (lbs.): 11
Torque Capacity (ft/lbs.): 310
Torque Capacity Over OE: 74%
Disc Material: Ceramic
Friction Surface Diameter (Inches): 8.8
Friction Surface Diameter (mm): 224
Input Shaft Diameter (Inches): 0.9375
Spline Count: 22
Pad Quantity: 4
Disc Type: Rigid Race Disc
Pressure Plate Type: Heavy Duty
Warranty: 12 Months
Description:
ZM2-HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.
Feel: Light to moderate pedal effort, aggressive engagement, increased gear rattle;
Life: Moderate friction life, extended by ACT's exclusive diaphragm design, rigid design may increase spline wear;
Quality: Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance;
Recommended Use: Recommended for race use only;
ACT Difference: 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability;
Application:
Mazda Miata (1990-1993) - Base 1.6 L4 GAS FI 1597cc | DOHC
Mazda Miata (1991) - SE 1.6 L4 GAS FI 1597cc | DOHC | Naturally Aspirated
Mazda Miata (1993) - LE 1.6 L4 GAS FI 1597cc | DOHC
Mazda Miata (1994-1997) - Base/M Edition 1.8 L4 GAS FI 1839cc | DOHC
Mazda Miata (1997) - STO 1.8 L4 GAS FI 1839cc | DOHC
Mazda Miata (1999) - 10th Anniversary 1.8 L4 GAS FI 1839cc | DOHC
Mazda Miata (1999-2005) - Base 1.8 L4 GAS FI 1839cc | DOHC
Mazda Miata (2000-2005) - LS 1.8 L4 GAS FI 1839cc | DOHC
Mazda Miata (2000-2003) - SE 1.8 L4 GAS FI 1839cc | DOHC
Mazda Miata (2003) - Shinsen 1.8 L4 GAS FI 1839cc | DOHC
Mazda Miata (2004-2005) - Mazdaspeed 1.8 L4 GAS FI 1839cc | DOHC | Turbocharged