Dynamite Friction 631-80032L Disc Brake Rotor - Rear Left

Overview of Dynamite Friction DFC Brake Rotor

The Dynamite Friction DFC Brake Rotor - Drilled and Slotted - Silver (part number 631-80032L) is engineered for Mazda RX-7 models requiring reliable braking performance. This vented disc brake rotor features a directional, slotted and drilled surface designed to enhance heat dissipation and maintain consistent stopping power under demanding conditions.

• Compatible with Mazda RX-7 vehicles
• Directional slotted and drilled surface for improved brake pad bite and cooling
• Vented rotor design to reduce heat buildup
• Rust-resistant zinc silver hat finish for corrosion protection
• 5 bolt holes with 114.3 mm bolt circle diameter
• Nominal thickness of 20 mm with discard thickness at 18 mm
• Overall diameter of 294 mm and height of 45 mm

Detailed Product Features and Specifications

This DFC Brake Rotor - Drilled and Slotted - Silver is constructed with a plain disc finish and a zinc silver coated hat to resist rust and corrosion, extending rotor life. The rotor is vented, allowing air to flow between the rotor faces to dissipate heat more effectively during braking. The directional surface pattern, combining drilled holes and slots, helps evacuate gases, dust, and water from the braking surface, improving pad contact and reducing brake fade.

With a 5-lug bolt pattern and a bolt circle diameter of 114.3 mm, this rotor fits Mazda RX-7 models requiring these specifications. The center hole diameter measures 72 mm, and the stud/lug hole diameter is 13 mm, ensuring proper fitment and secure mounting. The nominal thickness of 20 mm and discard thickness of 18 mm provide clear service limits for maintenance.

About the DFC Brake Rotor - Drilled and Slotted - Silver Line

The DFC Brake Rotor - Drilled and Slotted - Silver product line by Dynamite Friction focuses on rotors that combine drilled and slotted surfaces with corrosion-resistant finishes. This line is designed to offer enhanced braking performance and durability for vehicles like the Mazda RX-7, where heat management and rotor longevity are critical.

Applications and Problem Solving

• Reduces brake fade during aggressive driving or track use
• Improves wet weather braking by channeling water away from the rotor surface
• Minimizes brake dust buildup for cleaner braking components
• Prevents rust and corrosion on the rotor hat for longer service life
• Maintains consistent braking performance under high thermal stress

Installation Notes and Tips

Ensure the rotor surface is clean and free of any protective coatings before installation. Verify that the bolt pattern and center hole diameter match your Mazda RX-7 specifications. It is recommended to replace brake pads when installing new rotors to optimize braking performance. Torque lug nuts to manufacturer specifications and check rotor thickness regularly to avoid disc discard below 18 mm.

Quality Assurance

Dynamite Friction manufactures this rotor to meet strict quality standards for fitment and performance. The rust-resistant coating and vented design contribute to durability and consistent braking. Please consult product documentation or contact Dynamite Friction for warranty details specific to part number 631-80032L.