The Hurst Roll Control system enhances braking performance by enabling momentary front brake engagement. Proper installation is crucial for safety and functionality, requiring careful planning and attention to detail.
1.1 Overview of Hurst Roll Control System
The Hurst Roll Control System is an electronic solenoid-actuated valve designed to momentarily lock the front brakes, enhancing vehicle control during aggressive braking. It prevents rear brake lock-up, improving stability and performance, especially in racing applications. The system includes a solenoid valve, mounting hardware, and wiring components. The valve is typically installed in the engine compartment, near the master cylinder, ensuring quick activation via a momentary switch inside the vehicle. This setup allows drivers to maintain control while braking hard, making it a popular choice for performance enthusiasts and racers seeking precise braking capabilities.
1.2 Importance of Proper Installation
Proper installation of the Hurst Roll Control system is critical for ensuring safe and reliable operation. Incorrect mounting or wiring can lead to system failure, compromising vehicle control during braking. Improper brake line routing or electrical connections may result in inconsistent performance or even complete loss of function. Additionally, incorrect installation can damage components or void the manufacturer’s warranty. Adhering to the installation guidelines ensures optimal performance, safety, and longevity of the system.
By following the instructions carefully, users can avoid potential risks and enjoy enhanced braking control, making proper installation essential for both functionality and driver confidence.
Preparing for Installation
Gather all necessary tools and materials, including wrenches, mounting hardware, and brake line fittings. Ensure the vehicle is on level ground and apply the parking brake for safety.
2.1 Tools and Materials Needed
To install the Hurst Roll Control system, you’ll need a set of basic tools, including wrenches, pliers, and screwdrivers. Additionally, gather materials like mounting brackets, brake line fittings, and electrical connectors. Ensure you have a drain pan for fluid disposal and a clean work area. Consult the installation manual for specific components included in the kit, such as the solenoid valve and wiring harness. Having all tools and materials ready will streamline the process and minimize delays during installation.
2.2 Choosing the Right Mounting Location
Selecting a suitable mounting location for the Hurst Roll Control system is critical for optimal performance and durability. The solenoid valve should be mounted in a stable, secure area, such as the firewall or a sturdy frame rail, to prevent flexing or damage. Ensure the location is close to the master cylinder for shorter brake line routing and easier installation. Avoid areas exposed to excessive heat, moisture, or moving components that could interfere with the system. Proper mounting ensures reliable operation and extends the lifespan of the roll control system.
2.3 Disconnecting the Battery for Safety
Before starting the installation, disconnect the vehicle’s battery to ensure safety. Locate the battery and use the appropriate tools to disconnect the negative terminal first, followed by the positive terminal. This prevents any accidental electrical surges or shocks during the process. Ensure the vehicle is in park or neutral gear and apply the parking brake for added security. Allow the system to discharge any stored energy in capacitors before proceeding. Reconnect the battery only after completing the installation and testing the system. This step is crucial to protect both the installer and the vehicle’s electrical components.
Installing the Hurst Roll Control System
Mount the solenoid valve securely in the engine compartment, close to the master cylinder. Route the brake lines carefully and connect the electrical system properly for optimal functionality.
3.1 Mounting the Solenoid Valve
Mounting the solenoid valve is a critical step in the installation process. Ensure the valve is securely fastened to a sturdy location, such as the firewall or engine compartment, to prevent flexing of brake lines. Choose a spot close to the master cylinder for optimal performance and minimal complexity in routing lines. Use the provided hardware or equivalent to guarantee a firm installation. Double-check that the area is clean and dry before mounting to avoid any contamination. Tighten all bolts to the recommended torque specifications to ensure reliability and safety. Proper mounting ensures consistent functionality and prevents potential system failures.
3.2 Routing the Brake Lines Correctly
Routing the brake lines correctly is essential for maintaining system integrity and performance. Ensure lines are securely fastened using the provided hardware or equivalent to prevent damage. Avoid routing lines near heat sources or moving components, as this could lead to wear or failure. Use protective sleeves or clips to shield lines from abrasion. Double-check that lines are not pinched or obstructed, as this could restrict fluid flow. Proper routing ensures reliable braking functionality and prevents potential safety hazards. Always follow the manufacturer’s guidelines for optimal line placement and security.
3.3 Connecting the Electrical System
Connecting the electrical system involves linking the solenoid valve to the car’s electrical circuit. Start by identifying a suitable 12V power source, ideally from the battery or a switched ignition wire to ensure the system activates only when the vehicle is operational. Install a relay if necessary to manage higher current demands from the solenoid. Secure the ground wire to a stable metal point on the chassis to ensure proper grounding. Route wires from the solenoid to a control switch inside the cabin, using appropriate gauge wiring to prevent voltage drop. Install an inline fuse near the battery to protect the circuit from overcurrent. Consider adding diodes or resistors if required for voltage regulation. Test all connections with a multimeter and ensure the system functions correctly with the ignition on and off. Finally, organize wires with zip ties or loom for protection and neatness.
Testing and Troubleshooting
After installation, bleed the brakes to ensure no air is present in the lines. Test the solenoid valve to confirm proper function. Check for leaks and electrical connectivity issues, addressing any problems promptly to ensure system reliability and safety.
4.1 Bleeding the Brake System
Bleeding the brake system ensures no air remains in the lines, which is critical for proper function. Use a brake bleeding kit and DOT 3 brake fluid. Start by bleeding the wheel furthest from the master cylinder, working your way forward. Pump the brake pedal several times to pressurize the system, then open the bleeder valve to release air and fluid. Close the valve and repeat until fluid flows without bubbles. Proper bleeding ensures consistent brake performance and prevents spongy pedal feel. Always follow the manufacturer’s sequence to avoid introducing more air into the system.
4.2 Testing the Solenoid Function
After installation, test the solenoid valve to ensure proper function. With the ignition on, press the roll control switch to activate the solenoid. You should hear a distinct clicking sound when the solenoid engages. Check the brake pedal for resistance changes, indicating the solenoid is controlling fluid flow. Use a multimeter to verify the solenoid receives power when the switch is pressed. If no click occurs, inspect connections, fuses, or the solenoid itself. Proper solenoid function is essential for the roll control system to operate correctly, ensuring reliable braking performance during testing and use.
4.3 Diagnosing Common Issues
Common issues during Hurst Roll Control installation include solenoid malfunction or improper brake line routing. If the solenoid fails to engage, check wiring connections and ensure proper power supply. Brake drag may indicate incorrect line routing or faulty master cylinder integration. If the solenoid clicks but brakes don’t respond, inspect for air in the system or blocked lines. Consult the manual for troubleshooting guides and verify all connections are secure. Addressing these issues promptly ensures optimal system performance and safety. Always refer to the installation manual for specific diagnostic procedures and solutions.
Final Checks and Completion
Reconnect the battery and perform a final test drive. Ensure all connections are secure and function properly. Test the Roll Control system thoroughly for optimal performance and safety.
5.1 Ensuring All Connections Are Secure
Double-check all electrical, hydraulic, and mechanical connections to ensure they are tightly secured. Verify that the solenoid valve, brake lines, and mounting hardware are properly fastened. Inspect for any signs of damage or leaks. Ensure the battery is reconnected and all electrical systems are functioning correctly. Test the Roll Control system under normal operating conditions to confirm reliability. A thorough inspection ensures long-term performance and safety, preventing potential failures during use. Always refer to the installation manual for specific torque specifications and connection requirements.
5.2 Reconnecting the Battery
Reconnecting the battery is a critical step to restore power to the Hurst Roll Control system. Ensure all electrical connections are secure before proceeding. Connect the positive terminal first, followed by the negative terminal, to avoid any risk of short circuits. Tighten the terminals firmly and double-check their integrity. Once reconnected, test the solenoid valve and other electrical components to ensure proper functionality. Avoid sudden power surges, as they may damage the system. Proper reconnection ensures reliable operation of the Roll Control system and maintains overall vehicle safety.
5.3 Final Testing of the Roll Control System
After completing the installation, conduct a thorough test of the Hurst Roll Control system. Start by engaging the solenoid valve to ensure it activates and deactivates smoothly. Check for any leaks in the brake lines and verify proper electrical connections. Test the braking system under normal conditions to confirm functionality. Activate the roll control feature to ensure the front brakes engage momentarily without requiring multiple pedal presses. Monitor the system’s performance during these tests to identify and address any issues promptly. Proper testing ensures the system operates safely and as intended, providing reliable control during vehicle operation.