Mel Larsen has claimed that his Larsen RADAX engine has set the word record in thermal efficiency for an engine. The Larsen RADAX is an 8-cylinder, 2-stroke, 300 horsepower Internal Combustion Engine that has an efficiency range of 45 – 54 percent, which far exceeds the 20 – 30 percent efficiency of a standard gasoline engine.
Video Rating: 4 / 5