Installing high-performance brakes on your time attack build is one of the most effective upgrades you can make to improve lap times and on-track confidence. While power gains get the headlines, the ability to shed speed reliably lap after lap is what separates competitive builds from also-rans. This expanded guide walks you through the entire process—from selecting the right components to performing a proper bed-in—ensuring your brakes perform at their peak when every tenth of a second counts.

Why High-Performance Brakes Matter for Time Attack

Time attack sessions push a car’s braking system to its limits. Repeated hard braking from high speeds generates enormous heat and stress. Stock brake systems are designed for street use and will quickly fade or glaze pads under sustained abuse. Upgrading to high-performance brakes provides:

Consistent stopping power: High-performance pads and rotors maintain friction even when hot, reducing fade.
Improved modulation: Better feel at the pedal allows you to brake later and trail brake more precisely.
Durability: Larger rotors, multi-piston calipers, and dedicated pad compounds handle the thermal load of a 20-minute session.
Weight reduction: Some aftermarket systems save unsprung weight, improving suspension response and handling.

For time attack specifically, the ability to brake deeper into corners and recover speed earlier is critical. A proper brake upgrade can shave seconds off your lap without changing a single horsepower.

Tools and Parts Needed

Before starting, gather all necessary tools and components. Having everything on hand avoids downtime and ensures you can focus on the installation. For a typical front or rear brake upgrade, you will need:

Tools

Socket set (metric and SAE as needed) and combination wrenches
Torque wrench (range 10–150 ft-lb)
Brake caliper piston tool or a large C-clamp
Brake cleaner and shop rags
Jack and two jack stands (minimum)
Lug wrench or impact gun
Wire or bungee cord to hang calipers
Brake fluid catch bottle and clear tubing for bleeding
Allen keys or Torx bits (depending on caliper design)

Components

High-performance brake pads (e.g., semi-metallic, carbon metallic, or ceramic compound suited for track use)
High-performance rotors (slotted or drilled, depending on preference; slotted rotors are generally better for track use at the cost of pad wear)
Brake fluid (DOT 4 or higher—avoid DOT 5 silicone fluid unless your system is designed for it)
Optional: Stainless steel braided brake lines for improved pedal feel and heat resistance
Optional: High-performance calipers if upgrading from single-piston to multi-piston

Brembo’s automotive site offers a good overview of different caliper and rotor technologies suitable for track use.

Choosing the Right Brake Components

Not all high-performance brakes are created equal. Carefully match components to your vehicle, power level, and intended use. For a dedicated time attack build, consider the following:

Brake Pads

Pad compound is the single most important factor. Track-only pads (such as those from Hawk Performance or Ferodo Racing) offer high initial bite and resistance to fade but may be noisy and dusty. Dual-purpose pads (like EBC YellowStuff or StopTech Sport) are a compromise, suitable for both street driving and lapping days. For time attack, prioritize track performance over comfort.

Rotors

Choose rotors that are at least as large as stock, but ideally larger if your vehicle accepts an upgrade from a higher-trim model. Slotted rotors help outgas pad material and keep the friction surface clean; drilled rotors can crack under extreme heat and are mostly decorative for track work. Look for high-carbon iron or two-piece floating rotors for better heat management.

Calipers

If your budget allows, upgrading to multi-piston fixed calipers (e.g., 4- or 6-piston) dramatically increases clamping force and pad wear uniformity. Many OEM big-brake upgrade kits (e.g., from Brembo or Wilwood) bolt directly to popular chassis. Ensure your master cylinder is sized to handle the increased fluid volume.

Brake Lines

Stainless steel braided lines eliminate the expansion of rubber hoses under high pressure, giving a firmer pedal feel. They also resist heat damage better than stock hoses.

Preparation and Safety

Before lifting the car, take these steps to ensure a safe and efficient installation:

Park on a solid, level surface and engage the parking brake.
Chock the wheels on the opposite end of the car.
Wear safety glasses and mechanic’s gloves—brake dust and fluid are corrosive.
Have a fire extinguisher nearby, especially if using brake cleaner.
Disconnect the battery if you plan to remove any ABS or electronic parking brake components (some vehicles require service mode).
Take photos of the existing assembly before disassembly for reference.

Warning: Brake fluid is hygroscopic and can damage paint. Immediately clean any spills with water. Use only fresh fluid from a sealed container.

Step-by-Step Installation

Step 1: Remove Wheels and Secure the Car

Loosen the lug nuts while the car is on the ground, then jack up the vehicle one corner at a time. Place jack stands under reinforced frame points, not under control arms or brake lines. Remove the wheels and store them out of the work area.

Step 2: Remove Old Calipers and Rotors

Use a wrench to remove the caliper mounting bolts (usually two large bolts on the back of the knuckle). Support the caliper with a wire or bungee secured to the coil spring or chassis—do not let it hang by the hose. Slide out the old brake pads. If the rotor is corroded to the hub, tap it gently with a rubber mallet. Remove the rotor retaining screws and pull the rotor off.

Step 3: Inspect Hub and Mounting Surfaces

Clean the hub face with a wire brush to remove rust or debris, which can cause rotor runout and vibration. Check the caliper bracket for cracks or excessive wear. If replacing with a bigger brake kit, you may need to remove the old bracket and install the new one (often supplied with the kit). Apply a thin layer of anti-seize to the hub contact area (avoid getting it on the rotor friction surface).

Step 4: Install New Rotors

Wipe the new rotor with brake cleaner to remove factory protective oils. Slide the rotor onto the hub. If your rotors use retaining screws, tighten them gently—they do not need high torque. For two-piece rotors, ensure the rotor is correctly oriented and the floating hardware is free.

Step 5: Install New Brake Pads and Calipers

Compress the caliper piston(s) using a C-clamp or piston tool. If you have an electronic parking brake, you may need to retract the piston using a scan tool. Place the new pads into the caliper carrier. For some multi-piston calipers, pads drop in from the top. Install any anti-rattle clips and shims provided with the pads.

Slide the caliper over the rotor and tighten the mounting bolts to the torque specified in your kit instructions (typically 80–120 ft-lb). Use a torque wrench for accuracy. Check that the rotor spins freely without scraping—if it does, re-center the caliper or shim the bracket.

Step 6: Repeat for All Wheels

Work one wheel at a time to avoid mixing up parts. After completing the first corner, move to the next. If upgrading only the front axle (common for time attack), the rear brakes can remain stock unless they are badly worn.

Bleeding the Brakes

After installing new calipers or removing old ones, air will have entered the system. Bleeding is critical for a firm pedal. Use a two-person method or a pressure bleeder:

Fill the reservoir with fresh DOT 4 fluid.
Start with the wheel farthest from the master cylinder (usually right rear).
Attach a clear hose to the bleeder valve and sink the other end in a catch bottle with some fluid.
Have an assistant pump the pedal 3-5 times and hold it down.
Open the bleeder valve until fluid flows without bubbles, then close it before the assistant releases the pedal.
Repeat until only clear fluid emerges. Top off the reservoir often.
Move to the left rear, right front, left front.

Do not let the reservoir run dry—air will re-enter the system. After bleeding, ensure the pedal feels firm and travel is consistent. If you removed the ABS module, you may need to cycle the ABS pump with a scan tool to bleed it properly.

StopTech’s brake bleeding guide provides additional tips for aggressive systems.

Bed-In Process (Pad Break-In)

Proper bed-in transfers a layer of pad material to the rotor surface, creating an even friction interface. Without it, braking will be inconsistent and the pads may glaze. Follow these steps on a safe, low-traffic road or area:

Perform around 8–10 moderate stops from 40–60 mph, applying the brakes firmly but not locking the wheels. Allow a quarter-mile of cooling between stops.
Then perform 3–4 more aggressive stops from 60 to 10 mph, letting the brakes cool between each. You may notice a slight smell or smoke—this is normal as the pads gas off.
After this cycle, drive for another 5–10 minutes without using the brakes if possible to let them cool down gradually.
Park the car and do not set the parking brake until the rotors are cool (the heat can warp the rotors or embed pad material unevenly).

During the first few track sessions, avoid full-throttle braking until at least 10–15 heat cycles. The pads will continue to improve with use. If you feel vibration or pulsation, the bed-in may be incomplete—repeat the process.

Post-Installation Testing

Before heading to the track, test your brakes on a quiet road at low speed first. Check for:

Pedal feel: Should be firm with no sponginess or excessive travel.
Brake bias: The car should not pull to one side under hard braking.
Noise: Some squeal is normal for track pads, but grinding or scraping indicates a problem.
Leaks: Inspect all connections and bleeder valves for fluid seepage.

If everything feels right, perform a few moderate stops from higher speeds to confirm consistency. When you’re confident, head to the track for a shakedown session, gradually building up to full threshold braking.

Maintenance Tips for Longevity

High-performance brakes require more frequent attention than street brakes. Follow these practices:

Flush brake fluid before every season or after 2–3 track days—moisture reduces boil point.
Check pad thickness before each session; track pads wear quickly.
Inspect rotors for cracks, wear, and thickness variation. Replace if below minimum thickness stamped on rotor.
Lubricate caliper slide pins if using sliding calipers; fixed calipers rarely need this.
After a wet track day, drive a few miles to dry out the pads and rotors to prevent corrosion.

Time Attack Forums are an excellent resource for model-specific brake maintenance tips and common issues.

Conclusion

A high-performance brake system is the cornerstone of any serious time attack build. By choosing the right components, following a careful installation procedure, and dedicating time to a proper bed-in, you ensure that your car stops as reliably as it accelerates. The result is more confidence in the braking zone, later braking points, and ultimately faster lap times. Take your time with the process, double-check your work, and enjoy the improved performance every time you hit the track.

Step-by-step Tutorial for Installing High-performance Brakes on Your Time Attack Build

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