ACT Heavy Duty/Race Rigid 4 Pad Clutch Kit

2008–2014 Scion xD

SC1-HDR4

Overview:

The ACT Heavy Duty/Race Rigid 4 Pad Clutch Kit is engineered specifically for the Scion xD model years 2008 through 2014. Designed for enthusiasts seeking a robust upgrade over the factory clutch, this kit delivers enhanced clamp load and durability for spirited driving and track use. It is ideal for drivers who demand aggressive engagement and quicker shifts without sacrificing clutch life. The kit combines ACT’s proven heavy duty pressure plate technology with a high-performance 4-pad rigid race disc, making it a perfect choice for light to moderate pedal effort and race-inspired driving dynamics.

Whether you’re upgrading for improved throttle response or preparing your Scion xD for competitive motorsports, this clutch kit offers a reliable and consistent performance solution that stands up to high heat and stress conditions.

Key Features:

This clutch kit incorporates advanced design elements and premium materials to maximize performance and longevity:

• Heavy Duty pressure plate with exclusive diaphragm design for increased clamp load and reduced deflection
• Four-stage heat-treated diaphragms for superior strength and consistent performance
• Precision cover stampings enhance rigidity and ensure consistent clamp force
• 4-pad rigid race disc constructed with high-quality ceramic friction materials for excellent heat tolerance
• Chrome-moly hub is heat-treated to provide exceptional strength and durability
• Lightweight, rigid disc design promotes quicker shifts and smooth operation
• Harsher engagement suited for aggressive driving and race applications
• 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability
• Extended friction life supported by ACT’s exclusive diaphragm design
• Recommended for race use only, ensuring uncompromised performance under demanding conditions

Construction & Design:

The ACT HD/Race Rigid 4 Pad Clutch Kit is meticulously engineered with durability and performance in mind. The heavy duty pressure plate features a unique diaphragm spring design that increases clamp load while minimizing deflection, which translates to longer clutch life and consistent pedal feel. Each diaphragm undergoes a rigorous four-stage heat treatment process to enhance strength and reliability under extreme heat and stress.

The clutch disc itself is built with a rigid 4-pad ceramic friction material that offers high heat tolerance and aggressive engagement characteristics. The chrome-moly hub is heat-treated to resist wear and provide long-lasting durability. This combination of materials and precision manufacturing ensures the clutch kit can withstand the rigors of aggressive street driving and track conditions.

Performance & Sound

The 4-pad rigid race disc delivers a more aggressive engagement compared to stock clutches, resulting in quicker, more precise shifts. Drivers will notice a firmer pedal feel and increased gear rattle, which is typical for race-oriented clutch setups. While engagement is harsher, the trade-off is faster response and improved power transfer, making it ideal for performance driving scenarios. The clutch’s design balances performance with moderate pedal effort, allowing for spirited driving without excessive fatigue.

Installation & Fitment:

This clutch kit is a direct fit replacement for the Scion xD models from 2008 to 2014. Installation requires standard clutch replacement procedures and may be best performed by a professional or experienced technician. No major modifications are necessary, but proper break-in and adjustment are recommended to ensure optimal performance and longevity. The kit is designed to work seamlessly with the factory flywheel and transmission setup.

What's Included:

• ACT Heavy Duty pressure plate with diaphragm spring design
• 4-pad rigid race ceramic friction clutch disc with chrome-moly hub
• Alignment tool (if applicable)
• Installation instructions

Ideal For:

This clutch kit is ideal for Scion xD owners who:

• Participate in amateur racing or track days
• Seek a more aggressive clutch engagement and quicker shifts
• Require a durable clutch capable of handling increased power and heat
• Want to upgrade from the factory clutch for improved performance and reliability
• Are comfortable with a race-oriented pedal feel and gear noise

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.