ECi O-320

The ECi O-320 is part of a family of normally aspirated, air-cooled, four-cylinder, direct-drive engines developed for certified 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.

Design and development
ECi developed engine kits starting in 1995.

O-320 series

 * ECi O-320
 * 154 hp at 2700 rpm, Minimum fuel grade 100/100LL avgas, compression ratio 7.0:1. Certified Applications


 * ECi OX-320
 * 154 hp at 2700 rpm, Minimum fuel grade 100/100LL avgas, compression ratio 7.0:1. Experimental Variant


 * ECi IOX-320
 * 156 hp at 2700 rpm, Minimum fuel grade 100/100LL avgas, compression ratio 7.0:1. Fuel Injected Experimental

Applications
• Aviat Husky A-1B-160

• Avid Flyer

• Aero Commander 100

• Alpha 160A

• American Champion Citabria

• Australian Aircraft Kits Hornet STOL

• Australian Lightwing SP-4000 Speed

• Aviation Industries of Iran AVA-202

• Beechcraft Musketeer

• Bellanca Decathlon

• Bushcaddy L-160

• Canadian Home Rotors Safari

• Cessna 172

• Custom Flight North Star

• Christavia Mk IV

• Dakota Cub Super 18

• EM-11 Orka

• Eaves Cougar 1

• Explorer Ellipse

• Falconar F12A Cruiser

• Fly-Fan Shark

• Glasair GlaStar

• Grumman American AA-5

• Gulfstream American GA-7 Cougar

• Hatz CB-1

• Hatz Classic

• Lambert Mission 212

• MBB Bo 209

• Mooney M20

• Murphy Elite

• Mustang Aeronautics Mustang II

• Osprey Osprey 2

• Partenavia P66B Oscar 150

• Peña Dahu

• PIK-19

• Piper Aztec

• Piper Apache

• Piper PA-40 Arapaho

• Piper Twin Comanche

• Piper Cherokee

• Piper Tripacer

• Preceptor STOL King

• PZL-110 Koliber

• Quikkit Glass Goose

• Rihn DR-107 One Design

• Robin DR400

• Robinson R22

• Rutan Long-EZ

• Sands Fokker Dr.1 Triplane

• SGP M-222 Flamingo

• Socata TB9 Tampico

• Symphony SA-160

• Tapanee Levitation 2

• Thorp T-18

• Piper PA-18-150 Super Cub

• Van's Aircraft RV-3

• Van's Aircraft RV-4

• Van's Aircraft RV-6

• Van's Aircraft RV-8

• Van's Aircraft RV-9

• Varga Kachina

• Velocity V-Twin

• Vulcanair P-68C

• Wassmer WA 52

• Wickham B

• Wittman Tailwind