Acura CL Type S Manual Swap
The Acura CL Type S manual transmission swap involves converting the factory automatic transmission to a manual gearbox, typically using components from compatible Honda/Acura vehicles. This comprehensive guide covers the process, required parts, installation steps, compatibility considerations, and performance benefits for transforming your Acura CL Type S into a true driver's car with enhanced control and engagement.
Overview and Benefits
The manual swap transforms the driving experience by providing direct gear control, improved acceleration response, and enhanced driver engagement. The J32A2 engine in the CL Type S responds exceptionally well to manual transmission conversion.
| Benefit | Description |
|---|
| Improved Acceleration | Eliminates automatic transmission power loss and shift lag |
| Enhanced Control | Direct gear selection for optimal performance driving |
| Weight Reduction | Manual transmission components are typically lighter |
| Increased Reliability | Simpler mechanical design with fewer failure points |
| Higher Resale Value | Manual CL Type S models are rare and highly sought after |
| Better Fuel Economy | More efficient power transfer in highway cruising |
| Customization Options | Ability to use different final drives and gear ratios |
Required Parts List
Complete parts inventory needed for successful manual transmission conversion.
- Manual Transmission: Acura TL/CL 6-speed or compatible 5-speed unit
- Clutch Assembly: Pressure plate, clutch disc, release bearing
- Flywheel: Lightweight aftermarket or OEM replacement
- Pedal Assembly: Manual brake/clutch pedal set
- Master Cylinder: Clutch hydraulic master cylinder
- Slave Cylinder: Clutch hydraulic slave cylinder
- Shifter Assembly: Complete shifter mechanism and cables
- Driveshaft: Manual transmission specific driveshaft
- ECU: Manual transmission compatible ECU or reprogramming
- Miscellaneous: Bolts, brackets, hydraulic lines, fluid
IMPORTANT! Verify all parts compatibility before beginning installation.
Compatibility Guide
Understanding which components work with the CL Type S platform.
- Transmission: TL-S 6-speed (most desirable), Accord V6 6-speed, CL base 5-speed
- Flywheel: OEM or lightweight aftermarket (11-13 lbs recommended)
- Clutch: OEM replacement or performance clutch kits
- Axles: Manual transmission specific CV axles required
- ECU: Manual TL/CL ECU or automatic ECU reprogramming
- Pedals: CL/TL manual pedal assembly
- Shifter: Complete shifter box and cable assembly
NOTE: Some fabrication may be required for non-OEM applications.
Tools and Equipment
Essential tools for professional-quality manual swap installation.
- Basic Hand Tools: Socket sets, wrenches, screwdrivers, pliers
- Specialty Tools: Transmission jack, clutch alignment tool
- Lifting Equipment: Hydraulic jack, jack stands, lift preferred
- Electrical Tools: Multimeter, wire crimpers, soldering iron
- Fluid Equipment: Transmission fluid pump, brake bleeder kit
- Safety Gear: Gloves, safety glasses, shop rags
- Torque Wrench: Critical for proper bolt tightening specifications
Step-by-Step Installation
Comprehensive installation procedure from start to finish.
- Preparation: Disconnect battery, drain fluids, secure vehicle on stands
- Remove Automatic: Detach driveshaft, axles, wiring, transmission mounts
- Clutch Installation: Install flywheel, clutch assembly with alignment tool
- Transmission Mount: Install manual transmission and secure with mounts
- Pedal Assembly: Replace automatic pedal set with manual clutch/brake pedals
- Hydraulic System: Install master cylinder, slave cylinder, and bleed system
- Shifter Installation: Mount shifter assembly and connect cables
- Final Connections: Install driveshaft, axles, wiring, and refill fluids
CAUTION! Use transmission jack and proper lifting techniques.
Wiring and ECU Modifications
Electrical system adaptations for manual transmission operation.
ECU Options: Manual transmission ECU swap or automatic ECU reprogramming to disable transmission codes and enable manual operation.
Wiring Modifications: Reverse light wiring, neutral safety switch bypass, clutch pedal position sensor installation, speed sensor compatibility.
Dashboard: Manual gear indicator installation or automatic shifter display modification.
Clutch and Hydraulic System
Proper clutch system installation and bleeding procedure.
- Clutch Selection: Choose appropriate clutch for driving style (OEM, stage 1, stage 2)
- Flywheel Preparation: Surface inspection, proper bolt torque sequence
- Hydraulic Installation: Master cylinder routing, slave cylinder positioning
- Bleeding Procedure: Bench bleeding, system bleeding, pedal adjustment
- Pedal Feel: Proper free play adjustment and engagement point
Tip: Use high-quality DOT 4 brake fluid for clutch hydraulic system.
Driveshaft and Axle Considerations
Drivetrain component compatibility and installation.
- Driveshaft: Manual transmission specific unit required
- CV Axles: Verify manual transmission spline count compatibility
- Differential: Final drive ratio considerations for performance
- Mounts: Transmission mount differences between auto/manual
- Fluids: Manual transmission fluid specifications and capacity
Testing and Break-in Procedure
Post-installation verification and clutch break-in process.
- Initial Inspection: Check all connections, fluid levels, bolt tightness
- Static Testing: Clutch pedal operation, gear selection, neutral position
- First Start: Engine start in neutral, verify no unusual noises
- Clutch Break-in: 500-mile gentle driving with varied gear changes
- Performance Testing: Gradual increase in shift speed and RPM
- Final Adjustment: Clutch pedal free play and engagement point fine-tuning
WARNING! Proper break-in is critical for clutch longevity.
Common Issues and Solutions
| Issue | Possible Cause | Corrective Action |
|---|
| Gear grinding | Clutch not disengaging fully | Bleed hydraulic system, adjust pedal |
| Difficulty shifting | Incorrect fluid or cable adjustment | Use proper MTF, adjust shifter cables |
| Clutch slippage | Improper break-in or worn components | Replace clutch, ensure proper installation |
| Vibration | Driveshaft imbalance or bad mounts | Balance driveshaft, replace mounts |
| Check engine light | ECU compatibility issues | Reprogram ECU or install manual ECU |
Professional Help: Consult experienced Honda/Acura specialists for complex issues.
Performance Upgrades
Enhancements to complement the manual transmission conversion.
- Short Shifter: Reduced throw for quicker shifts
- Lightweight Flywheel: Improved engine response and acceleration
- Performance Clutch: Higher torque capacity for modifications
- Limited Slip Differential: Improved traction and cornering
- Transmission Mounts: Stiffer mounts for precise shifting
- Shift Knob/Boot: Custom interior upgrades
- Final Drive Swap: Alternative gear ratios for acceleration/top speed
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