Mazda has been building new parts for the original MX-5 Miata for a couple of years and even offers a full restoration service over in Japan. Now it's expanding the parts program to the RX-7, ...

The mind-bending world of birotary engines - a hybrid of piston and rotary technology that could revolutionize aviation. But ...

Got a burning question or simply need some advice with problems you’ve encountered while wrenching on your current/future projects? Ask our automotive guru Eric Hsu anything—literally, he’s going to ...

When Dr. Felix Wankel created an engine that could produce big power while taking up the smallest space possible, who would have expected the tuning world to accept it with such open arms? Considering ...

Meet the Birotary, a crazy new and complicated engine that has three cylinders arranged like a star, a rotating block, a ...

Over-the-top rotary builds are an enthusiast tradition. Because so few rotary cars have been made, the limits of the engine type haven't been fully exploited by automakers. It's been tuners who have ...

The traditional piston engine has garnered the vast majority of attention and application in the internal combustion age, but there was another: the Wankel rotary engine. German engineer Felix Wankel ...

For better or worse, Mazda and the rotary engine are connected like vintage champagne and Gouda cheese. The rotary has since made a comeback in the Euro-only Mazda MX-30 Skyactiv R-EV, but it has ...