RCEXL Twin Cylinder Ignition – 90° CM-6 / 10mm Spark Plug Cap (14mm Hex)

Designed for twin-cylinder gas engines, the RCEXL Twin Cylinder Ignition system delivers reliable performance and precision timing for advanced RC aircraft. This high-quality CDI unit features 90-degree CM-6 / 10mm spark plug caps with a 9/16" (14mm hex) size for a secure, interference-free connection.

With a wide operating voltage range (6V to 14.4V) and dual Futaba female connectors (for battery and tachometer), this ignition system is ready to integrate into your twin-cylinder setup with ease. Engine startup is enhanced through a dual-spark system and a smart timing curve that automatically adjusts based on RPM, offering smoother operation and improved throttle response.

Specifications:

• Engine Compatibility: Twin-cylinder RC gas engines

• Spark Plug Cap: CM-6 / 10mm (14mm Hex), 90-degree angle

• CDI Unit Weight: 178g

• Operating Voltage: 6V to 14.4V

• Connectors: Futaba Female (Battery & Tachometer)

• Recommended Timing: 30° BTDC (auto retard to 20° BTDC during start-up, 100–2000 RPM)

• Timing Curve: Automatic curve up to 4000 RPM, then fixed at 30° BTDC

• Start-Up Aid: Fires spark plug twice per cycle for easier ignition

Note:
BTDC = Before Top Dead Centre

This ignition unit is perfect for powering large-scale model planes with twin-cylinder engines that require high reliability, easy starting, and smooth throttle response.