The Ultimate Guide on How to Do Brake Booster Delete: Step-by-Step Instructions

If you’re looking to shave off some weight, simplify your braking system, and potentially improve pedal feel, a brake booster delete might be the mod for you. This procedure involves removing the power-assisting brake booster and relying solely on your foot’s strength to apply the brakes. While it might sound daunting, with the right tools and knowledge, it’s a DIY project within reach. This guide will walk you through the process of how to do brake booster delete, from understanding the basics to tackling the installation.

Understanding the Brake Booster and its Role

The brake booster is a vacuum-powered device that assists your braking system by multiplying the force you apply to the brake pedal. When you press the pedal, the booster uses engine vacuum to create pressure that helps move the brake fluid, ultimately applying force to the calipers and stopping your vehicle.

Why Consider a Brake Booster Delete?

While the brake booster is crucial for standard vehicles, there are several reasons why some enthusiasts opt for a delete:

• Weight Reduction: A brake booster can weigh several pounds, and removing it can contribute to a lighter overall vehicle weight. This can be particularly beneficial for performance cars or those seeking better handling.
• Simplified System: Eliminating the brake booster eliminates a potential point of failure and simplifies the braking system, making maintenance easier.
• Improved Pedal Feel: Some drivers report a more direct and responsive pedal feel after a brake booster delete, as they are directly controlling the brake pressure.
• Enhanced Performance: In some cases, a brake booster delete can lead to a slightly faster braking response, particularly for high-performance applications.

Considerations Before You Start

• Vehicle Compatibility: Not all vehicles are suitable for a brake booster delete. Some cars rely heavily on the booster, and removing it could significantly compromise braking performance. Research your specific vehicle model to ensure compatibility.
• Driving Style: This modification is best suited for drivers who are comfortable with a harder pedal feel and are willing to adapt to the change.
• Safety: It’s crucial to understand the potential downsides of a brake booster delete. Without the assisted braking, you’ll need to apply more force to the pedal, especially during emergency braking situations.

The Essential Tools for Your Brake Booster Delete

Before diving into the installation, gather these essential tools:

• Socket set: You’ll need sockets of various sizes to remove bolts and nuts.
• Wrench set: Wrenches will be necessary for tightening and loosening components.
• Torque wrench: Use a torque wrench to ensure proper tightening of bolts and nuts, preventing damage to your braking system.
• Brake fluid bleeder kit: This kit will help you bleed the brake system after the modification.
• Safety glasses: Always protect your eyes while working on your vehicle.
• Gloves: Protect your hands from brake fluid and other potential contaminants.
• Shop towels: Keep your work area clean and absorb any spills.

Step-by-Step Guide: How to Do Brake Booster Delete

1. Preparation:

• Park your vehicle on a level surface and engage the parking brake.
• Disconnect the negative battery terminal to prevent electrical hazards.
• Locate the brake booster, typically mounted near the firewall.
• Identify all the components connected to the booster, including vacuum lines, brake lines, and electrical connectors.

2. Disconnect Components:

• Disconnect the vacuum lines from the booster.
• Disconnect the brake lines from the booster. This usually involves loosening the banjo bolts.
• Disconnect any electrical connectors.

3. Remove the Brake Booster:

• Remove the bolts or nuts securing the brake booster to the firewall.
• Carefully remove the booster from its mounting location.

4. Install the Brake Booster Delete Kit:

• If you’re using a brake booster delete kit, follow the manufacturer’s instructions for installation.
• Typically, the kit will include a replacement master cylinder with a smaller bore size to compensate for the lack of booster assistance.
• Install the new master cylinder according to the kit’s instructions.

5. Connect Components:

• Connect the brake lines to the new master cylinder.
• Connect any electrical connectors (if applicable).

6. Bleed the Brake System:

• Follow the bleeding procedure for your specific vehicle. This involves opening the bleeder valves on each wheel caliper and pumping the brake pedal to remove air from the system.
• Ensure the brake fluid level in the master cylinder remains topped off during the bleeding process.

7. Re-connect the Battery:

• After bleeding the brakes, reconnect the negative battery terminal.

8. Test Drive:

• Start the vehicle and test the brakes thoroughly in a safe area.
• You should experience a firmer pedal feel and a slightly longer braking distance compared to the original system.

Final Thoughts: Mastering the Brake Booster Delete

Completing a brake booster delete requires mechanical aptitude, attention to detail, and a thorough understanding of your vehicle’s braking system. If you’re unsure about any step or feel uncomfortable with the process, seek professional assistance from a qualified mechanic.

After the Delete: Tips for Safe Driving

• Practice: Familiarize yourself with the new pedal feel and braking distances.
• Smooth Transitions: Avoid abrupt braking and practice smooth transitions for a comfortable driving experience.
• Regular Inspections: Ensure your brakes are in good working order with regular maintenance and inspections.
• Emergency Braking: Understand the limitations of your braking system without a booster and be prepared for longer stopping distances.

Common Questions and Answers

Q1: Is a brake booster delete legal in my area?

A: Check your local vehicle regulations. In some regions, modifications that affect braking performance might require inspection and approval.

Q2: Will a brake booster delete affect my vehicle’s insurance?

A: Some insurance companies might consider a brake booster delete a modification that could affect your insurance premium. Consult your insurance provider for specific details.

Q3: What are the potential downsides of a brake booster delete?

A: Downsides include a harder pedal feel, longer braking distances, and potential difficulties in emergency braking situations.

Q4: Can I use my original master cylinder with a brake booster delete?

A: It’s generally not recommended. The smaller bore size of the master cylinder in a brake booster delete kit helps compensate for the lack of booster assistance.

Q5: How do I know if my vehicle is suitable for a brake booster delete?

A: Research your specific vehicle model and consult with a qualified mechanic to determine compatibility and potential risks.