When most people hear the term "rotary engine," they probably think of Mazda first, as rotary engines have been part and parcel of the Japanese automaker's mantra for decades. In fact, Mazda proclaims ...

The internal combustion engine, for all its mechanical sophistication, still runs on a 19th-century mechanical idea: pistons rising and falling, a crankshaft spinning, a steam-age architecture ...

Today on the FRAME, we discover the advanced and semi-automated production of Mazda MX-30’s rotary engine, bringing rotary technology back as a compact range extender. Do you have a great product to ...

Chris Bruce has worked in the automotive industry since 2011 and has written thousands of stories about cars, motorsports, and motorcycles in that time. He has written for Autoblog, Autoviva, CarFax, ...

Mazda is developing two sports cars, including an RX-7 successor and next-gen MX-5. The rotary-powered model may debut next year with a range-extender hybrid powertrain. The upcoming MX-5 is still ...

Everyone generally knows about piston and rotary engines, with many a flamewar having been waged over the pros and cons of each design. The “correct” answer is thus to combine both into a single ...

Language is an imperfect medium, but it's what we've got, so let's go with it. Determining the swept volume of inventor Felix Wankel's rotary engine can generate more arguments than claiming what a GT ...

The Wankel rotary engine offers one of the most unique sounds of any ICE. Most famously used in various legendary Mazdas like the RX-7 and the supposedly banned Le ...

Wankel rotary engine powered thousands of aircraft. One of several problems: It spewed castor oil on its pilots.

The Wankel rotary engine is known for its troubled life in the mainstream automotive industry, its high power-to-weight ratio, and the intoxicating buzz it makes at full tilt. Popular with die-hard ...

Perfectly tuning the heat range of an engine's spark plugs is something of a dark art to all but the most well versed tuners and the engineering egg heads at automotive OEMs. Getting the spark plug ...