XCLUTCH Single Mass Chromoly Flywheel

1987–1995 Mazda RX-7 / 2004–2011 Mazda RX-8 2.6L / 1.3L Rotary

Part #: XFMZ004C

Overview

The XClutch Single Mass Chromoly Flywheel is a high-performance upgrade designed specifically for enthusiasts seeking enhanced strength and reliability in their Mazda RX-7 and RX-8. Crafted from durable 4140 Chromoly steel, this flywheel provides a significant upgrade over factory units, supporting high-powered street driving and motorsport applications. Its robust construction helps improve power transfer, throttle response, and overall drivability, making it an ideal choice for those pushing their rotary engines to the limit.

Whether you're building a spirited street machine or a dedicated track car, this flywheel offers the durability and performance needed to support increased horsepower and torque. Its custom design ensures a precise fit for your vehicle, with features that optimize engagement and longevity, giving you confidence in demanding driving conditions.

Key Features

The XClutch Chromoly Flywheel incorporates several advanced features to maximize performance and reliability:

• Constructed from 4140 Chromoly steel for exceptional strength and durability under high stress.
• Designed as a single mass unit to reduce rotational inertia, improving throttle response and acceleration.
• Includes an integral ring gear where required, ensuring smooth clutch engagement and longevity.
• Friction surface with raised configuration for consistent clutch contact and engagement.
• Flywheel step of +0.039 inches to optimize clutch compatibility and engagement feel.
• Weight of approximately 13.77 lbs, balancing performance gains with manageable rotational mass.
• 125-tooth configuration for precise gear engagement and durability.
• Custom engineered to fit specific Mazda RX-7 and RX-8 models, ensuring a perfect fit and easy installation.
• Designed to support high-powered street and motorsport applications, providing improved performance and reliability.

Construction & Design

This flywheel features a one-piece construction from premium 4140 Chromoly steel, known for its excellent strength-to-weight ratio and resistance to warping under high heat and stress. The integral ring gear is precisely machined for smooth clutch operation and durability. Its raised friction surface ensures consistent contact with the clutch disc, promoting reliable engagement and power transfer. The design minimizes rotational inertia while maintaining structural integrity, resulting in quicker throttle response and improved acceleration without sacrificing durability.

Installation & Fitment

The XClutch Single Mass Chromoly Flywheel is a bolt-on upgrade that requires no cutting, drilling, or complex modifications. It is designed to directly replace the factory flywheel on the specified Mazda RX-7 and RX-8 models, ensuring a straightforward installation process. For optimal performance, it is recommended to inspect and replace the clutch components simultaneously. Professional installation is advised to ensure proper alignment and torque specifications are met, guaranteeing reliable operation and longevity.

• Direct bolt-on replacement for factory flywheel
• No cutting or drilling required
• Compatible with existing clutch assemblies designed for your vehicle

What's Included

• 1 x Single Mass Chromoly Flywheel with integral ring gear
• Installation hardware (if applicable)
• Installation instructions

Ideal For

This flywheel is perfect for performance enthusiasts, racers, and daily drivers who demand increased strength, improved throttle response, and enhanced reliability from their Mazda rotary engine. It is especially suitable for high-powered builds and motorsport applications where durability and consistent performance are critical.