The Kneeslider

Doers Builders and Positive People

Suzuki AX200 2 Stroke Parallel Twin from 2 Singles

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Renjith Rao, one of The Kneeslider's readers in India, has taken his Suzuki AX100 single cylinder 2 stroke and turned it into a parallel twin. The crankshafts are mechanically connected inside the joined cases and run at 180 degrees. Though a 200cc engine may be small over here, it's a big jump from the small displacement engines of the type common in India. The appearance … [Read more...]

Laser Ignition System Eliminates Spark Plugs – Internal Combusion Engines Continue to Evolve

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Scientists in Liverpool working with some engineers from Ford, have developed an ignition system that ignites the fuel mixture with a laser instead of a spark plug. Engines in their labs are currently running with the laser system. The laser can be split into multiple beams which means it can have multiple ignition points, improving the chance of a complete burn, reducing … [Read more...]

Supercharged NSU Straight 8 Trike Engine from Two Inline 4 Cylinder Auto Engines

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Several builders have taken the route of joining engines into a V configuration but Chris Ireland, editor of Brit Chopper magazine, sent me this photo of his just completed straight 8. The 6 month build is the combination of 2 1200cc NSU air cooled auto engines, joined end to end with the cranks running 90 degrees apart for that V8 sound and power delivery. He also attached a … [Read more...]

Peraves SuperBallMotor – Rotating Sphere 4 Stroke Engine

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Here's a 4 stroke engine concept you have to see to understand, the Peraves Superballmotor uses a multipart sphere to replace the usual crankshaft, rods and pistons of a normal internal combustion engine. The moving parts of the sphere have ceramic balls on their exterior which travel in grooves in the case surrounding the sphere. The rotating motion of the sphere causes … [Read more...]

Bad Dog 215 Cubic Inch V-Twin – Update

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Remember the Bad Dog 215 cubic inch V-Twin we mentioned last year? Bill Price, the man behind the engine, hasn't been sitting around, he's been hard at work sourcing parts for the prototype and refining the design. I haven't been watching very closely and Doug Staab, one of our contributors here, just sent me a note to check out the pistons. Ho boy! Now that's what I call a … [Read more...]

Pratt & Whitney R-4360 Wasp Radial Engine

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Since we've seen so many radial engines here on The Kneeslider, the Rotec radials used in the bikes by Jesse James and JRL Cycles, plus the radial being built by Russell Sutton, I thought it might be worth mentioning the Pratt & Whitney R-4360, a 28 cylinder radial built in 4 banks of 7, each slightly offset for cooling purposes. The first version had an output of about … [Read more...]