ACT Twin Disc XT Race Kit

2011 Dodge Challenger R/T and SRT8

T2R-D04

Overview:

The ACT Twin Disc XT Race Kit is a high-performance clutch solution designed specifically for the 2011 Dodge Challenger R/T and SRT8 models. Engineered for racers and enthusiasts who demand superior durability and consistent engagement under extreme conditions, this twin disc kit delivers enhanced torque capacity and heat management compared to traditional single disc clutches. It is ideal for drivers seeking aggressive engagement, quick shifting, and long-lasting reliability on both the street and the track.

By doubling the number of friction surfaces, the Twin Disc XT Race Kit offers improved wear resistance and heat dissipation, ensuring extended service life and consistent performance during high-RPM operation. This kit is a perfect upgrade for those looking to maximize their Challenger’s drivetrain efficiency without sacrificing drivability.

Key Features:

The ACT Twin Disc XT Race Kit incorporates advanced technology and precision engineering to provide a superior clutch experience. Key features include:

• Proprietary Positive Lift Floater System design for quiet operation with no floater rattle and no wear-prone posts
• Exclusive four-stage heat treatment on all diaphragms for enhanced durability
• Adjustable for disc wear with equal disengagement of both clutch discs
• 6-pad rigid race discs constructed with high-quality ceramic friction materials for aggressive engagement
• Heat-treated chrome-moly hub for increased strength and longevity
• Lightweight, rigid design enabling quicker shifts and trouble-free service
• CNC-machined and dynamically balanced flywheel included for smooth installation and operation
• Torque capacity of 1,263 ft-lbs, representing 168% over the original equipment clutch
• Disc diameter of 10.5 inches (267 mm) and input shaft diameter of 1.125 inches
• Meets SFI 1.2 safety standards

Construction & Design:

The ACT Twin Disc XT Race Kit is built with premium materials and meticulous craftsmanship. The clutch discs feature ceramic friction pads arranged in a 6-pad rigid race configuration, delivering aggressive engagement and excellent heat resistance. The chrome-moly hub is heat-treated to withstand the rigors of high torque loads and racing conditions, ensuring long-term durability.

The Positive Lift Floater System eliminates common issues such as floater rattle and post wear, resulting in quieter operation and increased reliability. The entire assembly undergoes a four-stage heat treatment process on the diaphragms, enhancing strength and fatigue resistance. Additionally, the kit includes a CNC-machined flywheel that is dynamically balanced to reduce vibrations and facilitate smooth clutch operation.

Performance & Sound

This twin disc setup provides moderate to heavy pedal effort with aggressive engagement, ideal for drivers who want precise control and quick shifts. The design effectively doubles the friction surface area, improving heat capacity and wear resistance, which translates to consistent performance even under high RPM and demanding driving conditions. The clutch operates smoothly with minimal gear rattle, making it suitable for both street and race applications.

Installation & Fitment:

The ACT Twin Disc XT Race Kit is a direct fit for the 2011 Dodge Challenger R/T and SRT8 models, designed to replace the factory clutch assembly with minimal modifications. The kit includes all necessary components for installation, including a CNC-machined flywheel and alignment tool, which help ensure a straightforward and trouble-free installation process. Some kits may also include a pilot bearing and release bearing, depending on the specific package.

What's Included:

• Pressure plate
• Two clutch discs
• Floater
• CNC-machined and dynamically balanced flywheel
• Alignment tool
• Optional pilot bearing and release bearing (varies by kit)

Ideal For:

This clutch kit is ideal for performance enthusiasts, drag racers, and track day drivers who require a robust clutch capable of handling increased torque and aggressive driving styles. It suits those upgrading from stock or single disc clutches who want improved heat management, longer service life, and enhanced shift response without sacrificing drivability.

ACT (Advanced Clutch Technology) engineers performance clutches and flywheels built for consistent engagement, higher torque capacity, and durability in street and race use. The brand emphasizes quality and reliability and is widely used by enthusiasts who need driveline components that can handle repeated hard launches, shifts, and track abuse.