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

This video provides an in-depth analysis of the liquid piston engine and compares it to traditional piston engines and Wankel ...

The piston engine may be the most common type of internal combustion engine found in consumer automotive vehicles. That doesn't mean it's the only option drivers have ever had access to. In the 1960s, ...

Mazda’s iconic rotary engine might finally drive the wheels directly again, rather than sit under the hood as a hot rod ...

Mazda's hoping to once again let its rotary engines power the wheels on a car and not just act like a generator for a battery ...