While Rob Dahm’s garage is no stranger to monstrous rotary engines, including four-rotor units cranking out more than 1,000 horsepower, this one is mind-bending. Here we have a massive, ...

Mike Nixon gave an informative talk about the Bristol Centaurus, an 18-cylinder, sleeve-valve radial engine producing over 3,000 horsepower, at the March Plane Crazy Saturday event at Mojave Air & ...

Click to open image viewer. Power rating: 1,268 kW (1,700 hp) at 2,700 rpm Displacement: 41.8 L (2,550 cu in.) Bore and Stroke: 156 mm (6.14 in.) x 156 mm (6.14 in.) The BMW 801 was the first German ...

Continental, a successful manufacturer of automotive engines, purchased the rights for a Burt-McCollum single-sleeve valve engine design in 1925. Believing this technology might replace poppet valves ...