Super Size Me!
The world’s biggest engine is the Wartsila-Sulzer RTA96-C. It is a turbo charged two stroke diesel engine, and it is the most powerful and efficient low revolution engine in the world today. The Wartsila-Sulser is manufactured by the Aioi Works in Japan and is part of Japan’s Diesel United Ltd engine manufacturers. It is 89 feet long, 44 feet wide, and weighs 2000 tons.
These engines are built in 6, 8, 10, 12 and 14 cylinder configurations. All the engines are straight or 'inline'. The diameter of each cylinder is 3 foot 2 inches with a stroke of 8 foot 2 inches. The 12 cylinder version weighs in at 2000 metric tons and delivers 90,000 horsepower at 100 revolutions per minute, with best fuel economy at 53,244 hp at 90 rpm. When I mention economy, the 14 cylinder engine for example with a displacement of 25,480 Liters ( 1.56 million cubic inches ) burns up 1,660 gallons of crude ("bunker") oil every hour.