Subaru Subaru WRX 1992-2001 Brakes Specifications
Explore the detailed brake specifications for the 1992-2001 Subaru WRX, including rotor dimensions, caliper types, and pad materials. This guide is essential for maintenance, repairs, and performance upgrades.
Overview Specifications
This document provides detailed specifications and technical information about the braking system of the 1992-2001 Subaru WRX. It is designed to assist enthusiasts, mechanics, and owners in understanding the components, performance, and maintenance of the brakes. Use the search functionality to locate specific terms or navigate through sections to explore detailed information about brake types, dimensions, materials, and performance characteristics.
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Key Specifications
Front Rotor Diameter
277 mm
Rear Rotor Diameter
266 mm
Brake Fluid Type
DOT 3 or DOT 4
Stopping Distance (100-0 km/h)
~38 meters
Master Cylinder Diameter
15.87 mm
Available Specifications
Brake System Overview
This section provides a high-level overview of the braking system used in the 1992-2001 Subaru WRX. It covers the types of brakes, their configuration, and general performance characteristics.
Brake System Overview
This section provides a high-level overview of the braking system used in the 1992-2001 Subaru WRX. It covers the types of brakes, their configuration, and general performance characteristics.
Brake Types
- Front brakes: Ventilated discs
- Rear brakes: Solid discs
- Handbrake: Drum-type integrated into rear discs
- Brake booster: Vacuum-assisted
- ABS: Optional on later models
Configuration
- Dual-circuit hydraulic system
- Front-to-rear brake bias: 60:40
- Master cylinder diameter: 15.87 mm
- Brake fluid type: DOT 3 or DOT 4
Brake Components
This section details the key components of the braking system, including dimensions, materials, and specifications for rotors, calipers, and pads.
Brake Components
This section details the key components of the braking system, including dimensions, materials, and specifications for rotors, calipers, and pads.
Front Brakes
- Rotor diameter: 277 mm
- Rotor thickness: 24 mm
- Caliper type: 2-piston sliding
- Pad material: Semi-metallic or ceramic
- Minimum rotor thickness: 22 mm
Rear Brakes
- Rotor diameter: 266 mm
- Rotor thickness: 10 mm
- Caliper type: Single-piston sliding
- Pad material: Semi-metallic
- Minimum rotor thickness: 8 mm
Performance and Maintenance
This section covers the performance characteristics of the braking system and provides guidelines for maintenance, including inspection intervals and common issues.
Performance and Maintenance
This section covers the performance characteristics of the braking system and provides guidelines for maintenance, including inspection intervals and common issues.
Performance
- Stopping distance (100-0 km/h): ~38 meters
- Pedal feel: Firm and responsive
- Heat dissipation: Effective due to ventilated front rotors
- Fade resistance: Moderate under heavy use
Maintenance
- Inspect brake pads every 15,000 km
- Replace brake fluid every 2 years or 40,000 km
- Check rotor thickness during pad replacement
- Common issues: Pad wear, rotor warping, and fluid leaks
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Brakes Specifications
Overview
- Type
- Hydraulic disc brakes
- Configuration
- Front and rear disc brakes
- Platform
- Subaru WRX GC8 chassis
- Material
- Cast iron rotors with semi-metallic pads
- Location
- Wheel hubs
Dimensions
- Front Rotor Diameter
- 277 mm / 10.9 in
- Rear Rotor Diameter
- 266 mm / 10.5 in
- Front Rotor Thickness
- 24 mm / 0.94 in
- Rear Rotor Thickness
- 10 mm / 0.39 in
- Brake Pad Thickness
- 12 mm / 0.47 in
- Caliper Piston Diameter Front
- 54 mm / 2.13 in
- Caliper Piston Diameter Rear
- 38.1 mm / 1.5 in
Materials
- Rotors
- Cast iron with heat-treated surfaces
- Brake Pads
- Semi-metallic friction material
- Calipers
- Aluminum alloy
- Brake Lines
- Reinforced rubber with steel braiding
Features
- Performance
-
- High thermal capacity rotors
- Dual-piston front calipers
- Single-piston rear calipers
- Anti-lock Braking System (ABS)
- Durability
-
- Corrosion-resistant rotors
- Heat-resistant brake pads
- Reinforced brake lines
- Cooling
-
- Vented front rotors
- Slotted rotor design
- Dust shields for heat dissipation
- Control
-
- Proportional brake force distribution
- ABS modulation
- Brake booster assist
- Maintenance
-
- Wear indicators on brake pads
- Easy-access caliper design
- Replaceable rotor surfaces
Safety Features
- Anti Lock Braking
-
- 4-channel ABS system
- Electronic brake-force distribution
- Emergency Braking
-
- High-friction brake pads
- Dual-circuit hydraulic system
- Stability
-
- Integrated with vehicle stability control
- Automatic brake pressure adjustment
Comfort Features
- Noise Reduction
-
- Anti-squeal shims
- Chamfered brake pad edges
- Pedal Feel
-
- Progressive brake pedal response
- Low pedal effort design
- Vibration Control
-
- Balanced rotors
- Dampened caliper mounts
- Dust Management
-
- Low-dust brake pad formulation
- Dust shields on rotors
Accessories
- Upgrades
-
- Performance brake pads
- Drilled and slotted rotors
- Stainless steel brake lines
- Tools
-
- Brake caliper tool kit
- Rotor removal tool
- Brake bleeder kit
- Maintenance
-
- Brake cleaner spray
- Brake grease
- Wear indicator sensors
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Inspect brake pad thickness
- Check rotor surface condition
- Inspect brake fluid level
- Test ABS functionality
- Lubricate caliper slides
- Maintenance Notes
- Replace brake fluid every 2 years or 30,000 miles
Warranty
- Brake Pads
- Miles: 12,000Years: 1Coverage: Material defects
- Rotors
- Miles: 24,000Years: 2Coverage: Warpage and cracking
- Calipers
- Miles: 50,000Years: 5Coverage: Seal and piston failure
- Brake Lines
- Miles: 60,000Years: 5Coverage: Leaks and corrosion
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Casting for rotors
- CNC machining for calipers
- Compression molding for brake pads
- Quality Control
- Rotor inspection: Ultrasonic testing for cracksCaliper Testing: Pressure and leak testingPad Quality: Friction coefficient testing
- Sustainability Practices
-
- Recycled materials in brake pads
- Eco-friendly brake fluid formulation
- Energy-efficient manufacturing
- Production Metrics
- Annual Output: 500,000 brake systemsDefect Rate: 0.02%Recycling Rate: 85%
Service Information for brakes Service
Maintenance and service requirements specific to this component
- Inspect brake pad thickness
- Check rotor surface for wear
- Inspect brake fluid level
- Test ABS functionality
- Lubricate caliper slides
Replace brake fluid if moisture content exceeds 3%
- Replace brake pads
- Resurface or replace rotors
- Flush brake fluid system
- Inspect brake lines for leaks
- Check caliper operation
Use only Subaru-approved brake fluid
- Replace brake rotors
- Inspect and replace calipers if necessary
- Replace brake lines if corroded
- Test ABS sensors
- Perform full brake system bleed
Requires specialized ABS diagnostic tools
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 Are brake components for the 1992-2001 Subaru WRX interchangeable with other models?
Are brake components for the 1992-2001 Subaru WRX interchangeable with other models?
Brake components for the 1992-2001 Subaru WRX are specifically designed for this model range. While some parts may share compatibility with other Subaru models, such as the Impreza, it is crucial to verify part numbers and specifications. For example, the WRX uses larger rotors and calipers compared to base models. Always consult a compatibility chart or a Subaru dealer to ensure proper fitment.
Q2 What is the recommended maintenance schedule for WRX brakes?
What is the recommended maintenance schedule for WRX brakes?
The 1992-2001 Subaru WRX brake system requires regular maintenance to ensure optimal performance. Inspect brake pads every 10,000-15,000 miles and replace them if worn below 3mm. Rotors should be checked for thickness and warping every 20,000 miles. Brake fluid should be flushed every 30,000 miles or 2 years, whichever comes first. Regular cleaning of calipers and lubrication of slide pins is also recommended.
Q3 How do I replace the brake pads on a 1992-2001 Subaru WRX?
How do I replace the brake pads on a 1992-2001 Subaru WRX?
To replace brake pads on a 1992-2001 Subaru WRX, first, lift the vehicle and remove the wheels. Unbolt the caliper and hang it securely to avoid damaging the brake line. Remove the old pads and inspect the rotors. If necessary, resurface or replace the rotors. Install the new pads, ensuring they are seated correctly. Reattach the caliper and tighten the bolts to the manufacturer's torque specifications. Finally, pump the brake pedal to restore pressure before driving.
Q4 What should I do if my WRX brakes are squeaking or vibrating?
What should I do if my WRX brakes are squeaking or vibrating?
Squeaking or vibrating brakes on a 1992-2001 Subaru WRX can indicate several issues. Squeaking often results from worn brake pads or lack of lubrication on the pad backing plates. Vibrations may be caused by warped rotors or uneven pad deposits. Inspect the pads and rotors for wear or damage. Resurface or replace the rotors if necessary, and ensure the pads are properly lubricated and seated. If issues persist, check the calipers for proper operation.
Q5 How can I improve the braking performance of my WRX?
How can I improve the braking performance of my WRX?
To enhance the braking performance of your 1992-2001 Subaru WRX, consider upgrading to high-performance brake pads and slotted or drilled rotors for better heat dissipation. Stainless steel brake lines can improve pedal feel and reduce flex. Ensure the brake fluid is fresh and meets DOT 4 or higher specifications. Properly bed in new pads and rotors to maximize their effectiveness. Regular maintenance and inspections are also key to maintaining optimal performance.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1992-2001 Subaru WRX Service Manual
Coming SoonComprehensive service manual covering all aspects of maintenance, repair, and troubleshooting for the 1992-2001 Subaru WRX.
Subaru Technical Service Bulletin: Brake System Updates
Coming SoonTechnical bulletin detailing updates and common issues related to the brake system for 1992-2001 Subaru WRX models.
Subaru WRX Brake Parts Catalog
Coming SoonDetailed catalog of OEM and aftermarket brake components for the 1992-2001 Subaru WRX, including part numbers and compatibility information.
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