CPP HydraStop Hydraulic Brake Booster Guide
What They Do, How They Work and Why Your Classic Car or Truck Needs One
- Up to 1800 PSI braking force
- Direct bolt-in design for many applications
How the CPP HydraStop Hydraulic Brake Booster Works
HydraStop replaces vacuum brake assist with hydraulic pressure from your power steering system, making it a true hydraulic brake booster solution for any classic build.
- Power steering pump generates hydraulic pressure
- Pressure is stored in an internal accumulator
- When you press the brake pedal:
- Hydraulic pressure assists the master cylinder
- Multiplies braking force instantly
- System returns fluid to the reservoir when released
- Unlike vacuum systems, braking force does not depend on engine vacuum levels
Why Upgrade to HydraStop?
1. Massive Braking Power
- Delivers significantly more assist than vacuum boosters
- Ideal for big brake kits and 4-wheel disc setups
- Handles heavier vehicles like C10 trucks with ease
- LS swaps
- Big cam engines
- Supercharged / turbo setups
- Eliminates hard pedal issues caused by low vacuum
- Idle
- Cruising
- Wide Open Throttle
- No drop-off like vacuum systems
- Designed for pro-touring and restomod vehicles
- Keeps up with modern horsepower and speed
- Matches upgraded suspension and wheel packages
- Smaller footprint than large vacuum boosters
- Great for tight engine bays
- Cleaner firewall appearance
- Internal accumulator provides:
- Multiple assisted stops even if engine shuts off
- Adds an extra layer of safety
Bottom Line
- Bigger wheels and brakes
- More horsepower
- Less engine vacuum
HydraStop is not just an upgrade. For high-performance classic car and truck builds, it is a necessity.
Available HydraStop System Options
- Steel bracket
- Corvette-style master cylinder
- Rubber hoses
- Great performance at a lower cost
- Billet aluminum bracket
- Polished/chrome master cylinder
- Adjustable proportioning valve
- Stainless braided lines
Booster Only (Custom Builds)
- Ideal for mixing with existing systems
- Great for custom or LS swap builds
Common Questions About CPP HydraStop
- More braking power
- More consistent pedal feel
- Better performance with modified engines
- Vacuum boosters can struggle with low vacuum, while HydraStop delivers full assist every time.
The pump will need 2 return lines. The pressure line that goes to the gearbox or rack needs to go to the reservoir on the 2nd return line.
- If your vehicle already has power steering, you’re good to go.
- If not, you’ll need to add a pump.
HydraStop is perfect for:
- LS and LT swaps
- Big cam engines
- Supercharged / turbo setups
- No vacuum required = no performance loss.
- HydraStop offers:
- Firmer, more responsive pedal
- Less effort required
- More confidence under hard braking
- Most drivers describe it as modern car braking feel.
- Bolt into factory mounting locations
- Take a few hours
- Use basic hand tools
- You’ll just need to:
- Route hydraulic lines
- Bleed both brake and steering systems
- In many cases, HydraStop actually fits better than a vacuum booster.
- More compact design
- Great for tight engine bays (headers, LS swaps, etc.)
- Cleaner firewall appearance
- You need a good, properly functioning pump.
- Recommended:
- 1200+ PSI output
- Proper flow (around 2.5 GPM)
- Front disc or 4-wheel disc brakes
- Properly matched master cylinder
- Upgrading to a full CPP brake system gives the best performance.
- Bigger wheels and brakes
- More horsepower
- Low engine vacuum
- HydraStop is one of the best upgrades you can make.
Upgrade Your Braking System with Quality Boosters
If you're upgrading or maintaining your braking system, brake boosters are one of the most important components in your vehicle's ability to stop safely and consistently. Brake boosters apply hydraulic pressure to the brake pads, clamping them against the rotor to slow and stop your vehicle.
At Classic Performance Products (CPP), we offer a wide selection of brake boosters and accessories designed specifically for classic cars, trucks, and performance builds. Whether you're replacing worn components or upgrading to a more powerful braking setup, choosing the right booster helps ensure smooth, predictable braking performance.
Our selection includes stock-style replacement boosters and components engineered to work with modern disc brake conversion kits. These boosters are designed for durability, proper fitment, and reliable braking performance for classic vehicles.
Why Quality Brake Boosters Matter
Brake boosters play a critical role in the overall braking system. A properly functioning booster ensures even brake pad pressure, consistent stopping performance, and reduced brake fade under demanding driving conditions.
Upgrading or replacing worn boosters can help:
• Improve stopping power
• Restore proper brake balance
• Increase braking confidence and safety
• Support larger rotors and performance brake systems
For classic cars and trucks that have been upgraded with disc brake conversion kits, the correct boosters are essential for achieving modern braking performance.
Disc Brake boosters for Restoration & Performance Builds
Classic Performance Products offers brake components designed for restoration projects, restomod builds, classic trucks, muscle cars, and street performance vehicles. Whether you're completing a brake upgrade or replacing worn parts, the right booster helps your braking system operate efficiently and safely.
Browse our collection of disc brake boosters and booster accessories to find the right components for your build.
Explore available options here: Booster Kits and Accessories
Troubleshooting Guide
CPP Brake & Power Steering Troubleshooting Guide — Your Go-To Tech Resource
When you’re installing or diagnosing a brake or power-steering system in your classic car or truck, the CPP Brake & Power Steering Installation, Technical & Troubleshooting Guide is one of the most practical reference tools you can have in your toolbox.
This comprehensive PDF is designed to help both novice DIYers and seasoned builders walk through common issues and get systems working smoothly and safely.
Whether you’re installing a new disc brake conversion, hooking up power steering, or just trying to figure out why your pedal feels soft, the
CPP Brake & Power Steering Installation, Technical & Troubleshooting Guide equips you with structured advice and hands-on troubleshooting techniques. It’s a must-have reference for classic car builders who want confidence under the hood and out on the road.
