1992 Acura Integra Auto to Manual

The 1992 Acura Integra automatic to manual transmission conversion involves replacing the factory automatic transmission with a manual gearbox, typically from a compatible Honda/Acura model. This comprehensive guide covers the conversion process, required parts, installation steps, compatibility considerations, and troubleshooting for transforming your automatic Integra into a manual transmission vehicle for improved performance and driving experience.

Conversion Overview

The automatic to manual conversion for 1992 Acura Integra involves replacing the entire drivetrain components to accommodate manual transmission operation.

Required Parts List

Complete inventory of components needed for successful conversion.

1. Manual Transmission: YS1 or compatible 5-speed transmission
2. Clutch Kit: Pressure plate, disc, throwout bearing, pilot bearing
3. Flywheel: Manual transmission specific (resurfaced or new)
4. Clutch Pedal Assembly: Complete pedal box with master cylinder
5. Shift Linkage: Shifter, cables, and mounting brackets
6. Hydraulic Lines: Clutch fluid lines and reservoir
7. ECU: P28 or other manual transmission compatible ECU
8. Driveshaft: Manual transmission specific CV axles

WARNING! Ensure all parts are from compatible donor vehicles and in good condition.

Tools and Equipment

Essential tools for performing the conversion safely and efficiently.

1. Basic Hand Tools: Socket sets, wrenches, screwdrivers
2. Transmission Jack: For safe removal and installation
3. Engine Hoist: Optional but recommended for engine support
4. Hydraulic Line Tools: Flaring tools for brake/clutch lines
5. Electrical Tools: Wire strippers, crimpers, multimeter
6. Torque Wrench: For proper bolt tightening specifications
7. Jack Stands: Multiple sets for vehicle safety
8. Fluid Catch Pan: For transmission fluid drainage

CAUTION! Use proper safety equipment and follow all safety procedures.

Step-by-Step Installation

• Preparation: Disconnect battery, drain fluids, secure vehicle on jack stands.
• Automatic Removal: Remove automatic transmission, torque converter, flexplate.
• Clutch Installation: Install flywheel, clutch assembly, alignment tool.
• Pedal Assembly: Install clutch pedal, master cylinder, hydraulic lines.
• Transmission Installation: Mount manual transmission, connect shift linkage.
• Driveshaft Connection: Install manual transmission CV axles.
• Wiring Modifications: Bypass neutral safety switch, install reverse lights.
• ECU Replacement: Swap automatic ECU for manual transmission ECU.
• Final Assembly: Install console, fill fluids, bleed hydraulic system.

Compatibility Guide

Understanding which components work with your 1992 Acura Integra.

Transmission Options: YS1 (Integra GS-R), S1 (Civic Si), other B-series transmissions. ECU Compatibility: P28 (manual Civic), P72 (manual Integra GS-R). Donor Vehicles: 1992-1993 Integra GS-R, 1992-1995 Civic Si, 1994-2001 Integra. Engine Considerations: B18A1 automatic to manual conversion maintains engine compatibility.

Clutch System Installation

Proper installation of the complete clutch system for manual operation.

1. Remove automatic flexplate and torque converter
2. Install manual flywheel with proper bolt torque sequence
3. Mount clutch disc using alignment tool for proper positioning
4. Install pressure plate with even bolt tightening
5. Replace throwout bearing and pilot bearing
6. Install clutch release fork and pivot ball

Tip: Use high-quality clutch components for longevity and performance.

Hydraulic System Setup

Complete hydraulic clutch system installation and bleeding procedure.

1. Install clutch master cylinder to firewall and pedal assembly
2. Route hydraulic line from master to slave cylinder
3. Install slave cylinder on transmission bellhousing
4. Fill reservoir with DOT 3 or DOT 4 brake fluid
5. Bleed system to remove air bubbles
6. Adjust clutch pedal free play and engagement point
7. Test clutch operation before final assembly
8. Check for leaks and proper fluid level

WARNING! Proper bleeding is essential for clutch function and safety.

ECU and Wiring Modifications

Electrical system modifications required for manual transmission operation.

Testing and Calibration

Post-installation testing procedures to ensure proper operation.

Check clutch engagement point, shift linkage smoothness, gear selection accuracy, reverse light operation, speedometer calibration, and overall drivability. Test in safe area before road use.

CAUTION! Complete all testing in controlled environment before normal driving.

Common Issues and Solutions

Professional Assistance: Consult experienced mechanic for complex issues.

Resources: Acura technical service bulletins and enthusiast forums

Performance Considerations

Understanding the performance impact of manual transmission conversion.

• Acceleration Improvement: Reduced power loss through manual transmission
• Fuel Economy: Potential improvement with proper driving habits
• Driving Experience: Enhanced control and engagement
• Resale Value: Professional conversion may maintain or increase value
• Maintenance: Regular clutch and transmission fluid service required
• Warranty: Aftermarket conversion may affect existing warranties