• ACT Heavy Duty Race Rigid 4 Pad Clutch Kit | Porsche 911 (91-98) (PO1-HDR4)
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ACT Heavy Duty Race Rigid 4 Pad Clutch Kit | Porsche 911 (91-98) (PO1-HDR4)

ACT Heavy Duty Race Rigid 4 Pad Clutch Kit | Porsche 911 (91-98) (PO1-HDR4)

PO1-HDR4

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$1,030.00 USD
$1,272.00 USD $1,030.00 USD
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The ACT Heavy Duty Race Rigid 4 Pad Clutch Kit for Porsche 911 (1991-1998) is a high-performance clutch assembly designed for demanding driving conditions. This kit features ACT’s most popular Heavy Duty pressure plate, which utilizes an exclusive diaphragm design to increase clamp load, reduce deflection, and extend clutch lifespan. The pressure plate is heat-treated through a four-stage process to ensure durability and consistent performance under high-stress applications. The inclusion of high-quality ceramic 4-pad rigid race discs enhances heat resistance and torque capacity, making this clutch suitable for racing and aggressive street use. Built with precision cover stampings, the components deliver rigidity and reliability, ensuring optimal power transfer and pedal feel during intense driving.

Designed specifically for 1991-1998 Porsche 911 models, this clutch kit is a direct replacement upgrade for stock components. It is ideal for track days, racing, or high-performance street driving where increased clamping force and durability are essential. The kit is a bolt-on installation, requiring no modifications for proper fitment. It provides a significant upgrade in clamping capacity and heat resistance, making it suitable for vehicles subjected to high torque loads. The package includes the pressure plate, race discs, and necessary hardware, ensuring a complete and ready-to-install solution for enthusiasts seeking enhanced clutch performance on their Porsche 911.

Overview

1991-1998 Porsche 911 HD/Race Rigid 4 Pad Clutch Kit by ACT

PO1-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.

Features

  • Product Weight (lbs.): 13.3
  • Torque Capacity (ft/lbs.): 880
  • Torque Capacity Over OE: 67%
  • Disc Material: Ceramic
  • Clutch Disc Diameter (Inches): 9.4
  • Clutch Disc Diameter (Millimeters): 240
  • Input Shaft Diameter (inches): 1
  • Pressure Plate Type: Heavy Duty

Benefits

  • Light to moderate pedal effort
  • Aggressive engagement
  • Increased gear rattle
  • Moderate friction life
  • Rigid design may increase spline wear
  • Uses select ceramic friction materials for high heat tolerance and maximum performance
  • 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Applications

  • 1991-1998 Porsche 911

What's In The Box?

  • 1 - ACT HD/Race Rigid 4 Pad Clutch Kit

Warranty

  • ACT 1-Year Limited Warranty
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