Ilmor Engineering is one of those companies you always hear about in racing circles, designing all sorts of exotic racing engines and back in 2007 they decided to put together an engine for the then new 800cc MotoGP rules after the phase out of the two strokes. While researching an article about ICEngineWorks for HorsePowerSports, I came across this photo someone from their … [Read more...]
Dan Gurney Patents Moment Cancelling Four Stroke Motorcycle Engine
Dan Gurney, legendary racer, the man behind All American Racers and designer of the Gurney Alligator recumbent motorcycle, was just issued a patent for a new engine design. It's an upright parallel twin with counter rotating cranks called the "Moment Cancelling 4 Stroke." It's initially aimed at motorcycles, though he suggests it could be used in many other applications in the … [Read more...]
Harley Davidson V4 Engine Prototype Photos
In 2007, we wrote about the Harley Davidson Nova V4 engine project from way back in the mid 1970s. AMF owned Harley in those years and decided a V4 wasn't a profitable venture so they killed it. Then, in 2009, there were rumors of a new Harley V4 project. This one was supposedly around 1600cc, with a 72 degree V angle and output around 170 horsepower. Cycle World in May of 2009 … [Read more...]
The Story Behind Kevin DeShazer’s 3 Cylinder Radial Engine
Recently we put up a couple of photos of Keven DeShazer's three cylinder radial, a fascinating mix of motorcycle and aero engines combined into his own unique design. There was no way I was going to let this go without finding out more about it and I asked Kevin if he would tell us some details of the background and include photos of the earlier stages of the project. He was … [Read more...]
Russell Sutton’s Nine Cylinder Radial Engine Complete with Propeller
After many years, which included some unfortunate mechanical setbacks, Russell Sutton has his nine cylinder radial running with a 300 horsepower Sensenich propeller mounted, generating 800 pounds of thrust. For those of you who have come in late, this is an engine, designed from scratch, cases milled from aluminum with nine cylinders from Honda XR600 motorcycle engines. And if … [Read more...]
Three Cylinder 2400cc Radial Engine and Motorcycle by Kevin DeShazer
Just got a note from Kevin DeShazer about a little project he's working on in his basement. It's a three cylinder radial engine made from the cylinders of a Continental 0-360 aero engine. The crankshaft comes from a Moto Guzzi. Three geared cams with Harley lobes operate the valves. It uses an aviation electric oil pump and that orange can on the front is an aviation … [Read more...]
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