Stratus EJ 22

The Stratus EJ 22 is an American aircraft engine, produced by Stratus 2000 of Corvallis, Oregon for use in homebuilt aircraft.

Design and development
The engine is based upon the Subaru EJ 22 automotive engine. It is a four-cylinder four-stroke, 2200 cc, liquid-cooled, gasoline engine design, with a belt-type reduction drive with a reduction ratio of 2.2:1. It employs electronic ignition and produces 180 hp at 5900 rpm.

The company seems to have gone out of business about 2008 and production ended.