In this fascinating video, we journey through the intricate process of building a rotary valve engine from scratch. Watch as ...

That alone reduces emissions and increases engine longevity. The rotary valve also means that the blockages caused by conventional poppet valves are not an issue as poppet valves are not needed in ...

It’s a dedicated hacker who has the patience to build an engine from scratch. And it’s a borderline obsessed hacker who does it twice. [Meanwhile In the Garage] is of the second ilk, and in the video ...

Every few weeks I receive word at the office that some tinkering genius has revolutionized the internal-combustion engine. These notices arrive on pages still smelling of Damascus lightning, and ...

Imagine an engine that's 30 percent smaller than a traditional piston design of like output, and that runs smoothly, with less noise and vibration. Plus, it burns several types of fuel. That's the ...

Longtime friend of Jalopnik and myself, Tom Jennings, is a huge Rambler fan and walking, moist column of Rambler-knowledge, so when he encounters something Rambler-related he wasn't aware of, you know ...

Detached engine components, with 1 cardboard box filled with rings, gaskets, and hardware. Type: Rotary, monosoupape (single valve), 9 cylinders, air-cooled Power rating: 75 kW (100 hp) at 1,200 rpm ...

The rotary engine could be on the verge of a revolution. California startup GoTek Energy has received a patent for a new type of motor – one that addresses some of the shortcomings of past rotaries, ...

A report from TopSpeed has us musing about the future of the motorcycle community when it comes to rotary-powered engines – or if there’s even a potential for a resurgence in the cards at all. There ...

While the engineering community continues to explore the benefits of electric and hybrid vehicles—i.e., the environmental and renewable energy factors—the automotive market is still dependent on ...

Mazda had to put their darling Mazda RX-8 out to pasture in 2012. A number of factors were responsible, from the rising fuel prices to more restrictive emissions guidelines. The weaknesses inherent to ...