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Product Description: HD-M/Race Rigid 4 Pad Clutch Kit
The HD-M/Race Rigid 4 Pad Clutch Kit by ACT is a meticulously engineered solution designed to elevate performance in race applications. Weighing 15.2 lbs., this kit boasts a torque capacity of 510 ft/lbs., marking an 81% increase over OE capacity, ensuring enhanced power transmission and durability.
Crafted with a ceramic disc material, this kit features a clutch disc diameter of 9.4 inches (240 millimeters) and a robust input shaft diameter of 1 inch, optimizing torque transfer and reliability under demanding conditions. The heavy-duty pressure plate, renowned for its exclusive diaphragm design, effectively boosts clamp load, minimizes deflection, and prolongs clutch life.
The heart of this kit lies in its 4-pad rigid race discs, meticulously manufactured with high-quality ceramic friction materials. The chrome-moly hub, heat-treated for strength and resilience, facilitates swift and precise gear shifts, enhancing overall performance. While engagement may be harsher, the lightweight, rigid design guarantees trouble-free service, particularly well-suited for smaller engine applications.
The inclusion of ACT's patented Monoloc ensures seamless compatibility and optimal performance, replacing conventional two-piece collars with a single, hardened chrome-moly steel construction. This upgrade provides uniform loading on the bearing and pressure plate, maintaining proper alignment irrespective of driving conditions or vehicle modifications.
Key Features:
ACT Difference:
Vehicle Fitment:
Enhance your Mazda RX-7's performance on the track with the HD-M/Race Rigid 4 Pad Clutch Kit, meticulously crafted for uncompromising performance and durability in race environments.
Product Description: HD-M/Race Rigid 4 Pad Clutch Kit
The HD-M/Race Rigid 4 Pad Clutch Kit by ACT is a meticulously engineered solution designed to elevate performance in race applications. Weighing 15.2 lbs., this kit boasts a torque capacity of 510 ft/lbs., marking an 81% increase over OE capacity, ensuring enhanced power transmission and durability.
Crafted with a ceramic disc material, this kit features a clutch disc diameter of 9.4 inches (240 millimeters) and a robust input shaft diameter of 1 inch, optimizing torque transfer and reliability under demanding conditions. The heavy-duty pressure plate, renowned for its exclusive diaphragm design, effectively boosts clamp load, minimizes deflection, and prolongs clutch life.
The heart of this kit lies in its 4-pad rigid race discs, meticulously manufactured with high-quality ceramic friction materials. The chrome-moly hub, heat-treated for strength and resilience, facilitates swift and precise gear shifts, enhancing overall performance. While engagement may be harsher, the lightweight, rigid design guarantees trouble-free service, particularly well-suited for smaller engine applications.
The inclusion of ACT's patented Monoloc ensures seamless compatibility and optimal performance, replacing conventional two-piece collars with a single, hardened chrome-moly steel construction. This upgrade provides uniform loading on the bearing and pressure plate, maintaining proper alignment irrespective of driving conditions or vehicle modifications.
Key Features:
ACT Difference:
Vehicle Fitment:
Enhance your Mazda RX-7's performance on the track with the HD-M/Race Rigid 4 Pad Clutch Kit, meticulously crafted for uncompromising performance and durability in race environments.
Yes! All ACT clutch assemblies are computer spin balanced to within .25 oz-in to guarantee help smooth operation across the entire RPM range. For comparison, stock production clutches are typically balanced to within .50 oz-in. Lower is definitely better!
ACT pressure plates are specifically designed to handle high torque applications. With ACT's durable design, expect an increase in pedal effort between 15-40% (Heavy Duty) and 50-80% (Xtreme), depending on the application. Clutches developed with less pedal effort often result in a lack of longevity, torque capacity and/or engagement quality.
For organic street discs, we recommend breaking in the clutch for 300-500 miles with mild engagement, such as stop-and-go city driving prior to racing or spirited driving. ACT race discs usually only require a few hard slips to lap in the surfaces prior to normal driving or racing. Do not overheat the clutch during the break-in period, as this can result in friction surfaces fusing together, hot spots, and friction surface glazing.
In some situations, rebuilds or repairs may be possible (see warranty), after inspection of the clutch assembly. Please contact our technical department for further information. Because of special modifications, we do not recommend servicing by a general clutch rebuilder.
The weight of the ACT clutch assembly will usually be the same as a stock OEM clutch assembly.
Yes! All ACT clutch assemblies are computer spin balanced to within .25 oz-in to guarantee help smooth operation across the entire RPM range. For comparison, stock production clutches are typically balanced to within .50 oz-in. Lower is definitely better!
ACT pressure plates are specifically designed to handle high torque applications. With ACT's durable design, expect an increase in pedal effort between 15-40% (Heavy Duty) and 50-80% (Xtreme), depending on the application. Clutches developed with less pedal effort often result in a lack of longevity, torque capacity and/or engagement quality.
For organic street discs, we recommend breaking in the clutch for 300-500 miles with mild engagement, such as stop-and-go city driving prior to racing or spirited driving. ACT race discs usually only require a few hard slips to lap in the surfaces prior to normal driving or racing. Do not overheat the clutch during the break-in period, as this can result in friction surfaces fusing together, hot spots, and friction surface glazing.
In some situations, rebuilds or repairs may be possible (see warranty), after inspection of the clutch assembly. Please contact our technical department for further information. Because of special modifications, we do not recommend servicing by a general clutch rebuilder.
The weight of the ACT clutch assembly will usually be the same as a stock OEM clutch assembly.
Free Shipping for the Contiguous Continental States excluding Alaska.
We use UPS, FedEx, and USPS for deliveries. We are not responsible for any shipping problems and shall not be held liable for any "reasonable" delay beyond our advertised delivery time-frames. Shipment by Ground Courier can take up to 6 business days for delivery or Express Courier which can take up to 3 business days for delivery. Shipping time frames are once the order has been processed. Due to high demand, order processing can take 1 to 2 business days.
The on-time delivery guarantee does not apply to shipments that are delayed due to causes beyond the couriers control, including, but not limited to, the following: the unavailability or refusal of a person to accept delivery of the shipment, delays caused by the consignee, acts of God, public authorities acting with actual or apparent authority on the premises, acts or omissions of Customs or similar authorities, riots, circumstances arising before, during, or after a strike or other labor disputes, civil commotions, disruptions in the air or ground transportation network (such as weather phenomena), and natural disasters. For more information on the shipping Limits and Restrictions visit the UPS website at http://www.ups.com.
We do not accept Collect shipments for on-line orders. All shipping charges are charged at the time the order is placed on-line.
Any order received after 3PM PST will not ship until the following business day.
Free Shipping for the Contiguous Continental States excluding Alaska.
We use UPS, FedEx, and USPS for deliveries. We are not responsible for any shipping problems and shall not be held liable for any "reasonable" delay beyond our advertised delivery time-frames. Shipment by Ground Courier can take up to 6 business days for delivery or Express Courier which can take up to 3 business days for delivery. Shipping time frames are once the order has been processed. Due to high demand, order processing can take 1 to 2 business days.
The on-time delivery guarantee does not apply to shipments that are delayed due to causes beyond the couriers control, including, but not limited to, the following: the unavailability or refusal of a person to accept delivery of the shipment, delays caused by the consignee, acts of God, public authorities acting with actual or apparent authority on the premises, acts or omissions of Customs or similar authorities, riots, circumstances arising before, during, or after a strike or other labor disputes, civil commotions, disruptions in the air or ground transportation network (such as weather phenomena), and natural disasters. For more information on the shipping Limits and Restrictions visit the UPS website at http://www.ups.com.
We do not accept Collect shipments for on-line orders. All shipping charges are charged at the time the order is placed on-line.
Any order received after 3PM PST will not ship until the following business day.
PROP 65 WARNING: This product can expose you to chemicals including carbon black, glass wool fibers, and silica (in clutch discs), chromium and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
PROP 65 WARNING: This product can expose you to chemicals including carbon black, glass wool fibers, and silica (in clutch discs), chromium and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
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