The RCEXL 3W Twin Cylinder Ignition System is purpose-built for 3W twin-cylinder petrol engines, delivering precise spark control and dependable performance for demanding RC aircraft applications. Engineered for reliability in high-vibration environments, this CDI unit ensures consistent ignition timing and smooth engine operation across the full RPM range.

Equipped with 90-degree CM-6 / 10mm spark plug caps (14mm hex), it provides a secure, interference-resistant connection while allowing easier installation in compact engine bays. The system features an intelligent timing curve with automatic retard during startup and dynamic advance through the RPM range, ensuring improved throttle response and stable running.

For enhanced starting performance, the ignition fires each spark plug twice per cycle at low RPM, making engine startup quicker and more reliable. With a wide operating voltage range (6V–14.4V) and Futaba-style connectors for seamless integration, this system is ideal for serious RC pilots using 3W engines.

Key Features

✅ Designed specifically for 3W twin-cylinder petrol engines
✅ 90° CM-6 / 10mm spark plug caps (14mm hex) for secure fit
✅ Intelligent timing curve for smooth throttle response
✅ Automatic start-up retard for reliable ignition
✅ Dual-spark firing at low RPM for easier engine starts
✅ Wide voltage compatibility (6V–14.4V)
✅ Futaba female connectors for simple installation

Perfect For

• 3W twin-cylinder RC engines
  
• Large-scale RC aircraft
  
• Aerobatic and scale model planes
  
• High-performance petrol engine setups
  
• Pilots demanding reliable ignition systems

Product Summary

A high-performance ignition system tailored for 3W twin-cylinder engines, featuring smart timing control, dual-spark starting, and durable 90° plug caps for consistent and reliable operation.

Specifications

• Brand: RCEXL
  
• Product Type: Twin Cylinder CDI Ignition System
  
• Engine Compatibility: 3W twin-cylinder gas engines
  
• Spark Plug Type: CM-6 / 10mm (14mm hex)
  
• Plug Cap Angle: 90°
  
• CDI Unit Weight: 178g
  
• Operating Voltage: 6V – 14.4V
  
• Connectors: Futaba Female (Battery & Tachometer)
  
• Recommended Static Timing: 30° BTDC
  
• Start Timing: Auto retard to 20° BTDC (100–2000 RPM)
  
• Timing Curve: Dynamic up to 4000 RPM, then fixed at 30° BTDC
  
• Start Assistance: Dual spark per cycle at low RPM

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