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Ephil - 38cc Rear exhaust - PRO - Gasoline Engine w/ E-Starter - X-38cc-R PRO
Take your RC fixed-wing model to a new level of performance with the EPHIL X-38cc-R Pro — a high-displacement 38 cc gasoline engine equipped with an integrated electric starter, electronic ignition, and premium components. Designed for those who demand effortless starts and robust power, this motor ensures you spend less time prepping and more time flying. Mount it, connect the starter, and get airborne with confidence.
Usage Notes
- Perfect for larger fixed-wing RC models requiring a high-power 38 cc engine with easy electric start.
- The electric starter and electronic ignition markedly simplify start-up procedures — ideal for pilots wanting convenience without compromising performance.
- With a 30 : 1 fuel/oil mix and premium spark plug, expect good reliability and consistent power output.
- Ensure your airframe supports the weight and power of a 38 cc engine — plan for appropriate prop size, mounting hardware, cooling and electrical supply.
- Double-check your battery/ESC/digital ignition system compatibility for the electric starter and ignition voltage (6-14 V) as specified
Technical Specifications
Model: X-38cc-R Pro
Displacement: 38 cc (2.33 cu in)
Performance: 4.2 HP
Speed Range: 1800 – 7300 RPM (Tested with 20×8 propeller)
Bore: 39 mm (1.54 in)
Stroke: 32.5 mm (1.28 in)
Compression Ratio: 9 : 1
Static Thrust:
9.9 kg @ 100 m altitude (21.8 lb @ 328 ft)
8.2 kg @ 1800 m altitude (18.1 lb @ 5900 ft)
Lubrication Ratio: 30 : 1 (Fuel : 2-stroke motor oil)
Ignition Voltage: 6 – 14 V
Spark Plug Type: CM6 Iridium spark plug
Recommended Propellers: 19×8 | 19×10 | 20×8 | 20×10
Component Weights:
Main Engine: 1216 g
Muffler Set: 73 g
Aluminum Standoff Set: 100 g
Spark Plug: 13.5 g
CDI (Ignition): 104 g
Starter: 109 g
ESC: 36 g
Total Weight: 1542.5 g (3.4 lb

