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Ephil - 20cc Rear exhaust Gasoline Engine - X-20cc-R
EPHIL X-20cc-R Gasoline Engine
Compact, efficient, and built for dependable performance — the EPHIL X-20cc-R brings smooth power delivery and effortless starts to your mid-size RC aircraft.
With its electronic ignition and high-precision construction, this 20 cc two-stroke engine is designed for long life, consistent reliability, and simple installation.
Take off with confidence — precision starts, stable throttle response, and the unmistakable sound of real gas power.
Recommended Usage
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Ideal for mid-size fixed-wing RC aircraft (1.8 – 2.2 m wingspan / 4–6 kg weight class).
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Perfect for sport, scale, or aerobatic models.
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Use with 16×8 – 17×6 class propellers for best efficiency.
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Runs on 30 : 1 gasoline / 2-stroke oil mix.
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Requires 6 – 14 V power for ignition module.
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Ensure proper cooling airflow and vibration isolation for optimal performance.
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Follow a short break-in period before full-power operation.
Technical Specifications – EPHIL X-20cc-R Gasoline Engine
Model: X-20cc-R
Displacement: 20 cc (1.22 cu in)
Performance: 2.5 HP
Speed Range: 1800 – 8400 RPM (Tested with 16×8 propeller)
Bore: 32 mm (1.26 in)
Stroke: 27 mm (1.06 in)
Compression Ratio: 9 : 1
Static Thrust:
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6.9 kg @ 100 m altitude (15.2 lb @ 328 ft)
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5.3 kg @ 1800 m altitude (11.7 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: 16×8 | 14×10 | 15×8 | 16×6 | 17×6
Component Weights:
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Main Engine: 697 g
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Muffler Set: 62 g
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Engine Mount Set: 115 g
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Spark Plug: 13.5 g
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CDI (Ignition): 104 g
Total Weight: 991.5 g (2.19 lb)