The Kneeslider

Doers Builders and Positive People

Dearman Liquid Air Engine

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In this age of cutting edge, high tech everything, you have to love the fellow working in his shed and coming up with a more efficient way of running an engine on liquid nitrogen, or in this application, liquid air. Peter Dearman has patented his process and it's called the Dearman engine. The basic operation is pretty straightforward. When a gas is chilled to a very low … [Read more...]

Is the Motus V4 Baby Block Crate Engine the Future of Old School Hot Rodding?

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Motus just announced pricing and availability for their all new MV4 Baby Block engine. You can reserve yours now for delivery this spring and summer, the price is $10,220 which includes the ECU, ride by wire intake, engine harness and fuse box. While most everyone here is focused on the Motus MST and MST-R motorcycles, the engine strikes me as equally, if not more important in … [Read more...]

Russell Sutton’s Amazing 9 Cylinder Radial Engine is Alive and Well and Running Strong

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Way back in 2008, we showed you the very early stages of Russell Sutton's engine project. Using the top ends from 9 Honda XR600 engines, he's built himself a 9 cylinder radial destined for use in an airboat. It's been a long journey, and if you've been here for a while, you'll recall he had a bit of a setback when, during the initial start up, the engine ran briefly then quit, … [Read more...]

DIY V-Twins From Unexpected Places – the Home Made Junak 700

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Up until the moment I received an email from Kim Scholer, I had never heard of, or at least don't remember ever hearing of, a motorcycle manufacturer by the name of Junak. According to wikipedia it's a Polish marque, built from 1956 to 1965, though it seems there are some later versions, perhaps the company was bought and restarted? The old engine was a single cylinder … [Read more...]

Francesco Romanelli and His Amazing Designs

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Who is Francesco Romanelli and why haven't we heard more about him? That's a question that popped up in my mind as I browsed his website the other day, following a tip from one of our readers. The name sounded familiar and we had an article on The Kneeslider a few years ago about his anti-turnover system designed to prevent wheelies from continuing until you flip over … [Read more...]

Yamaha 3 Cylinder Crossplane Concept Engine

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Yamaha just introduced their concept of the way forward in engines with a crossplane 3 cylinder engine. Like the engine in the current R1, the crossplane configuration delivers smooth application of power with a distinctive, and most would say, very satisfying exhaust note. As a 3 cylinder, they open the way to new, smaller displacement motorcycles, though no mention of what … [Read more...]