People are using the 1650 cc Motus V4 engine in all kinds of projects. The Motus V4 has even found its way into a boat which was built to test a new twin counter-rotating propeller system called Dpulsar invented by New Zealand inventor Barry Davies. The boat was built by Lancer Marine in Auckland, New Zealand with an alloy underside specifically for testing the Dpulsar system. Just listen to the Motus V4’s 165 horsepower and 123 lb-ft of torque going through open headers on the water.
Source: Barry Davies via American V4 FB page