The BLOX Racing EDEL 7.25" Rigid Single Disc Clutch Kit (BXFL-10230) is a high-performance clutch and lightweight flywheel system engineered for Honda D-Series engines producing significantly more horsepower and torque than factory drivetrain components were designed to handle.

Developed by EDEL for BLOX Racing, this competition-oriented clutch system combines a compact 7.25-inch (185mm) single disc design, rigid-hub cerametallic friction disc, aircraft-grade aluminum pressure plate cover, and lightweight one-piece billet chromoly flywheel to deliver exceptional holding capacity, responsive engagement, and reduced rotating inertia.

Rated to support applications producing up to 500 horsepower and 450 lb-ft of torque, the BLOX Racing EDEL clutch is designed for heavily modified naturally aspirated and turbocharged Honda D-Series engines. Its rigid, unsprung friction disc provides direct power transfer with minimal torsional cushioning, making it particularly well suited for racing environments where precise clutch engagement and reliable torque transfer are essential.

The compact 185mm clutch assembly is engineered with a low moment of inertia to help the engine accelerate and decelerate through its RPM range more quickly. Combined with the included lightweight billet chromoly flywheel, this design improves drivetrain responsiveness during aggressive acceleration, high-RPM shifting, and competitive driving.

The pressure plate assembly features an aircraft-quality aluminum alloy cover with a vented design intended to support heat management and consistent clutch operation. Each pressure plate is load-tested for quality assurance, while the performance friction disc is designed to withstand the demanding temperatures and engagement cycles encountered in motorsport applications.

Supplied as a complete clutch and flywheel package, the BLOX Racing BXFL-10230 includes the necessary major components for upgrading a compatible Honda D-Series manual transmission drivetrain.

Whether building a high-boost D16, preparing a naturally aspirated D-Series race engine, or upgrading a dedicated drag racing Civic or CRX, the BLOX Racing EDEL Single Disc Clutch Kit provides the strength, responsiveness, and performance-oriented construction required for serious horsepower applications.

Features

• 7.25-Inch (185mm) Single Disc Design: Compact racing clutch configuration engineered for increased torque capacity and reduced rotating inertia.

• Up to 500 Horsepower Capacity: Designed to support high-performance Honda D-Series applications producing up to 500 horsepower.

• Up to 450 LB-FT Torque Capacity: Provides substantial holding capacity for heavily modified naturally aspirated and turbocharged engines.

• Rigid-Hub Clutch Disc: Unsprung center design provides direct clutch engagement and immediate torque transfer.

• Cerametallic Friction Material: Performance-oriented friction compound designed for demanding operating temperatures and aggressive engagement.

• Aircraft-Quality Aluminum Pressure Plate Cover: Lightweight construction helps reduce rotating mass while maintaining strength.

• Vented Pressure Plate Design: Engineered to assist with heat management during demanding clutch operation.

• One-Piece Billet Chromoly Flywheel: Lightweight, high-strength flywheel construction designed for racing applications.

• Low Moment of Inertia: Helps improve engine responsiveness during rapid RPM changes.

• Push-Style Release Mechanism: Designed for compatible Honda D-Series clutch release configurations.

• Load-Tested Pressure Plate: Pressure plate assemblies undergo load testing for quality assurance.

• High-Performance Clamp Load: Engineered to provide the holding force required for increased engine output.

• Compact Racing Configuration: Smaller clutch diameter supports responsive engine acceleration and high-RPM operation.

• Complete Clutch and Flywheel Package: Includes the lightweight flywheel, release bearing, and clutch alignment tool.

• Honda D-Series Application: Designed specifically for compatible Honda D-Series engine and manual transmission combinations.

• EDEL Performance Engineering: Developed by EDEL for BLOX Racing for demanding street performance and motorsport applications.

Popular Performance Applications

• Turbocharged D16 Builds: Provides increased torque-holding capacity for high-boost D-Series engine configurations.

• Naturally Aspirated D-Series Builds: Supports high-compression and high-RPM racing applications.

• Honda Civic Drag Racing: Aggressive clutch engagement and high torque capacity make this system suitable for competitive drag racing.

• Honda CRX Performance Builds: Provides a competition-oriented clutch solution for compatible D-Series engine and transmission combinations.

• D-Series Engine Swaps: Suitable for compatible D-Series swap configurations requiring increased clutch holding capacity.

• High-Horsepower Street/Strip Builds: Designed for vehicles that regularly experience aggressive launches and demanding performance driving.

• Road Racing Applications: Compact clutch construction supports responsive drivetrain operation during competitive driving.

• Track Day Vehicles: Offers a high-performance clutch solution for modified vehicles requiring increased torque capacity.

• Built Engine Applications: Complements forged internal components, upgraded turbochargers, and other high-output engine modifications.

• Dedicated Race Cars: Provides direct power transfer for competition vehicles where clutch holding capacity and responsiveness take priority over factory-like engagement.

Additional Information

• Manufacturer: BLOX Racing
• Manufactured By: EDEL for BLOX Racing
• Part Number: BXFL-10230
• Product Type: Performance Single Disc Clutch and Flywheel Kit
• Clutch Configuration: Single Disc
• Clutch Disc Diameter: 7.25 Inches (185mm)
• Clutch Disc Thickness: 0.250 Inches (6.35mm)
• Clutch Disc Quantity: 1
• Clutch Disc Hub Type: Rigid / Unsprung
• Clutch Disc Material: Cerametallic
• Clutch Release Type: Push Style
• Pressure Plate Cover Material: Aircraft-Quality Aluminum Alloy
• Flywheel Material: One-Piece Billet Chromoly
• Bearing Contact Diameter: 44–52mm
• Required Release Travel: 5mm
• Horsepower Capacity: Up to 500 HP
• Torque Capacity: Up to 450 LB-FT
• Engine Compatibility: Honda D-Series
• Recommended Use: High-Performance Street/Strip, Drag Racing, Road Racing, and Motorsport Applications

Compatible Engine Families:

• Honda D15 Series

• Honda D16 Series

• Other compatible Honda D-Series engine configurations

Common Performance Vehicle Applications:

• Honda Civic models equipped with compatible D-Series manual transmissions

• Honda CRX models equipped with compatible D-Series manual transmissions

• Honda del Sol models equipped with compatible D-Series manual transmissions

• D-Series engine-swapped vehicles using compatible transmission and clutch release configurations

Important Fitment Information:

BLOX Racing identifies this clutch kit for Honda D-Series applications but does not provide a complete vehicle-specific fitment chart for every engine and transmission combination. Compatibility must be verified against the specific crankshaft, flywheel mounting configuration, transmission input shaft, and clutch release system before ordering.

Performance Capacity Note:

The manufacturer's stated horsepower and torque ratings represent maximum advertised capacities. Actual clutch performance and service life depend on vehicle weight, engine torque characteristics, driving conditions, installation quality, and clutch operating temperatures.

Important: This clutch utilizes a rigid-hub cerametallic friction disc. Engagement will be more aggressive than a factory organic clutch, and additional drivetrain noise, vibration, chatter, and reduced low-speed engagement smoothness should be expected.

Common Reasons for Replacement

• Factory Clutch Slippage: Replaces an original clutch that can no longer reliably hold increased engine torque.

• High-Horsepower Turbo Builds: Provides increased holding capacity for turbocharged Honda D-Series applications.

• Aggressive Racing Launches: Rigid-hub construction delivers direct torque transfer during hard launches.

• High-RPM Performance Driving: Compact clutch construction supports responsive engine operation during aggressive shifting.

• Single Disc Performance Upgrades: Offers a competition-oriented alternative to conventional full-diameter street clutch systems.

• Reduced Rotating Mass: Lightweight clutch and flywheel construction helps improve engine responsiveness.

• Drivetrain Performance Builds: Complements upgraded transmissions, limited-slip differentials, and reinforced drivetrain components.

• Worn or Damaged Clutch Components: Replaces slipping, overheated, or damaged clutch assemblies.

• Dedicated Racing Applications: Designed for vehicles requiring aggressive clutch engagement and substantial torque capacity.

• Complete Clutch and Flywheel Replacement: Provides a matched performance clutch and lightweight flywheel package for compatible applications.

Installation Notes

1. Verify Engine and Transmission Compatibility: Confirm that the vehicle uses a compatible Honda D-Series engine, manual transmission, and clutch release system.

2. Inspect the Existing Drivetrain: Check the transmission input shaft, release mechanism, clutch hydraulics or cable system, and related components for wear or damage.

3. Remove the Factory Clutch Assembly: Follow the applicable Honda factory service procedures when removing the transmission, clutch, and flywheel.

4. Inspect the Crankshaft Flange: Ensure the crankshaft mounting surface is clean, undamaged, and free of debris.

5. Install the Supplied Flywheel: Mount the one-piece billet chromoly flywheel using the correct hardware and manufacturer-specified torque procedure.

6. Inspect the Clutch Components: Verify that the friction disc, pressure plate assembly, and release bearing are clean and undamaged before installation.

7. Install the Rigid-Hub Friction Disc: Position the clutch disc in the correct orientation using the supplied alignment tool.

8. Install the Pressure Plate Assembly: Secure the pressure plate evenly and tighten the mounting hardware according to the manufacturer's specifications.

9. Verify Release Bearing Compatibility: Confirm that the release bearing and clutch release mechanism provide the required operating geometry.

10. Check Clutch Release Travel: Ensure that the release system provides the specified 5mm release travel without overextending the clutch mechanism.

11. Reinstall the Transmission: Carefully align the transmission input shaft with the clutch disc without forcing the transmission into position.

12. Inspect Clutch Engagement: Verify that the clutch engages and disengages properly before operating the vehicle under load.

13. Check for Interference: Confirm adequate clearance between the clutch assembly, transmission bellhousing, and surrounding components.

14. Follow Manufacturer Break-In Procedures: Complete the break-in process specified by BLOX Racing or EDEL before aggressive driving.

15. Inspect After Initial Operation: Check for abnormal noises, improper disengagement, excessive vibration, or other installation-related concerns.

16. Professional Installation Recommended: Installation by a technician experienced with performance racing clutch systems is strongly recommended.

Important: Rigid-hub racing clutches transfer greater shock loads through the drivetrain than conventional sprung-hub street clutches. Engine mounts, transmission mounts, axles, differential components, and transmission internals should be inspected before installation.

What's Included

• (1) BLOX Racing EDEL 7.25-Inch Rigid Single Disc Clutch Assembly

• (1) Cerametallic Rigid-Hub Friction Disc

• (1) Aircraft-Quality Aluminum Pressure Plate Assembly

• (1) One-Piece Billet Chromoly Lightweight Flywheel

• (1) Clutch Release / Throw-Out Bearing

• (1) Clutch Alignment Tool

Note: BLOX Racing confirms the inclusion of the lightweight flywheel, throw-out bearing, and alignment tool. Flywheel bolts, pressure plate hardware, and other application-specific installation components should be verified against the current manufacturer packaging before ordering.

Upgrade your high-horsepower Honda D-Series drivetrain with the BLOX Racing EDEL 7.25" Rigid Single Disc Clutch Kit (BXFL-10230) for exceptional torque capacity, aggressive engagement, and improved engine responsiveness. Featuring a cerametallic rigid-hub friction disc, aircraft-quality aluminum pressure plate cover, and lightweight one-piece billet chromoly flywheel, this complete clutch system is engineered to support applications producing up to 500 horsepower and 450 lb-ft of torque.

Whether you're building a turbocharged D16, preparing a dedicated drag racing Civic, or upgrading a high-RPM naturally aspirated D-Series engine, BLOX Racing and EDEL deliver a competition-focused clutch solution designed to transfer serious power to the pavement.