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ECi O 320

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The ECi O-320 is part of a family of normally aspirated, air-cooled, four-cylinder, direct-drive engines developed for ceritified and experimental aircraft. Its cylinders are arranged in horizontally opposed configuration and a displacement of 320 cubic inches (5.24 L). It is based on the Lycoming O-320 engine with ECi cylinder assemblies.

Contents

Design and development

ECi developed engine kits starting in 1995.

O-320 series

ECi O-320
154 hp (115 kW) at 2700 rpm, Minimum fuel grade 100/100LL avgas, compression ratio 7.0:1. Certified Applications
ECi OX-320
154 hp (115 kW) at 2700 rpm, Minimum fuel grade 100/100LL avgas, compression ratio 7.0:1. Experimental Variant
ECi IOX-320
156 hp (116 kW) at 2700 rpm, Minimum fuel grade 100/100LL avgas, compression ratio 7.0:1. Feul Injected Experimental

Specifications (ECi O-320)

Data from ECi

General characteristics

  • Type: Four-cylinder air-cooled horizontally opposed engine
  • Bore: 5.125 in (130.18 mm)
  • Stroke: 3.875 in (98.43 mm)
  • Displacement: 319.7 cu in (5.24 l)
  • Length: 29.07
  • Width: 32.27
  • Height: 24.8
  • Dry weight: 244 lb (111 kg)

    • Components

  • Valvetrain: Two overhead valves per cylinder
  • Fuel system: MA4-5 Carb
  • Fuel type: minimum grade of 100/100LLavgas
  • Oil system: Wet sump
  • Cooling system: Air-cooled

    • Performance

  • Power output: 154 hp (115 kW)
  • Compression ratio: 7:1

    • References

    ECi O-320 Wikipedia
    (Text) CC BY-SA


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