Here's the process of making this rotary valve engine with a different intake and an exhaust system. It wasn't easy to start ...

The rotary engine is easily one of the most controversial powertrains in the world of cars, and it's known for the brap-brap sound. Why do they do that?

When it comes to unconventional engine design, few exceed the Wankel rotary in terms of weirdness. Despite that, the same basic principles of internal combustion apply here: Fuel and air are mixed and ...