BC Racing BR Type Adjustable Coilovers User Manual

1. Product Overview

The BC Racing BR Series coilovers are designed for performance enthusiasts seeking a versatile suspension solution for both street and track use. This series offers independent ride height adjustment and 30 levels of damping adjustment, allowing for precise tuning to suit various driving conditions and preferences. The mono-tube shock design ensures consistent performance.

This product is specifically engineered as a replacement for the Acura RSX models from 2002 to 2006, providing a minimum 2-inch drop for enhanced vehicle stance and handling.

Figure 1.1: Complete set of BC Racing BR Type Adjustable Coilovers, including front and rear coilover assemblies and adjustment wrenches.

2. Safety Information

Always prioritize safety when working on vehicle suspension. Improper installation or adjustment can lead to serious injury or vehicle damage. It is highly recommended that installation and major adjustments be performed by a qualified professional.

• Ensure the vehicle is securely supported on jack stands or a lift before beginning any work.
• Wear appropriate personal protective equipment (PPE), including safety glasses and gloves.
• Never work under a vehicle supported only by a jack.
• Refer to your vehicle's service manual for specific torque specifications and procedures.
• After installation, perform a wheel alignment to ensure proper vehicle handling and tire wear.

3. Setup and Installation

3.1 Pre-Installation Check

Before beginning installation, verify that all components are present and undamaged. Compare the received parts with the packing list. Ensure the correct application for your Acura RSX (2002-2006).

3.2 General Installation Steps

While specific steps may vary, the general procedure for installing coilovers involves:

1. Safely lift and support the vehicle.
2. Remove the wheels.
3. Disconnect and remove the OEM suspension components (struts, springs, etc.).
4. Install the new BC Racing coilovers, ensuring proper orientation and secure fastening of all bolts and nuts.
5. Reconnect any brake lines, ABS sensors, or sway bar links that were disconnected.
6. Reinstall the wheels and lower the vehicle.
7. Perform initial ride height and damping adjustments.
8. Drive the vehicle a short distance to allow the suspension to settle, then re-check all fasteners and make final adjustments.
9. An alignment is required after installation.

Figure 3.1: Detail of the lower mounting bracket, designed for direct fitment to the vehicle's suspension points.

4. Operating and Adjustment

4.1 Ride Height Adjustment

The BR Series coilovers feature independent ride height adjustment, meaning the ride height can be changed without affecting spring preload or shock travel. This is achieved by adjusting the lower mount of the coilover body.

• To adjust ride height, loosen the locking collar on the lower mount.
• Rotate the main body of the coilover relative to the lower mount to raise or lower the vehicle.
• Once the desired height is achieved, securely tighten the locking collar.
• Ensure both sides of the vehicle are adjusted equally to maintain balance.

4.2 Damping Force Adjustment

The coilovers offer 30 levels of damping force adjustment, controlling both compression and rebound simultaneously. This allows fine-tuning of the ride comfort and handling characteristics.

• The damping adjustment knob is located at the top of the shock shaft (for front coilovers) or at the bottom (for rear coilovers, depending on design).
• Turn the knob clockwise for a stiffer ride (more damping) and counter-clockwise for a softer ride (less damping).
• Start with a neutral setting (e.g., 15 clicks from full soft) and adjust incrementally to find your preferred setting.
• Always adjust damping on both sides of the vehicle equally.

Figure 4.1: View of the top hat assembly, showing the damping adjustment knob for fine-tuning suspension stiffness.

5. Maintenance

Regular maintenance helps prolong the life and performance of your coilovers.

• Regular Cleaning: Keep the coilover bodies, threads, and collars clean from dirt, salt, and debris. Use mild soap and water, then rinse thoroughly.
• Inspect for Damage: Periodically inspect for any signs of leaks, bent components, or damaged dust boots.
• Check Torque: After initial settling, and periodically thereafter, re-check the torque of all mounting bolts and locking collars.
• Lubrication: Apply a thin layer of anti-seize compound to the threads of the coilover body and collars during installation and if adjustments become difficult.

6. Troubleshooting

If you encounter issues not listed here or if solutions do not resolve the problem, contact BC Racing customer support or a certified automotive technician.

7. Specifications

• Model: SI-A-07-BR
• Application: Acura RSX 2002-2006
• Series: BR Type
• Spring Rates: Front 10K, Rear 12K
• Damping Adjustment: 30 levels (compression & rebound simultaneous)
• Shock Design: Mono-tube
• Height Adjustment: Separate full length height adjustable
• Minimum Drop: Approximately 2 inches

8. Warranty Information

A One Year Manufacturer Warranty applies to BC Racing BR Type Adjustable Coilovers. This warranty is valid only when the product is purchased through Authorized BC Racing Resellers. Please retain your proof of purchase for warranty claims.

For detailed warranty terms and conditions, please refer to the official BC Racing website or contact their customer service.

9. Support

For technical assistance, product inquiries, or warranty claims, please contact BC Racing customer support. Ensure you have your product model number (SI-A-07-BR) and purchase details ready when contacting support.

While specific contact details are not provided here, general support can typically be found via the manufacturer's official website.