Could there possibly be a rotary engine with 12 rotors? The answer is yes, and here's everything we know about it including how much HP it could have.

Not a 12-cylinder engine, a triple-turbo 12-rotor engine. A 15.7-liter rotary engine. This is insane, and so is Rob Dahm.

Through the history of internal combustion engines, there has been plenty of evolution, but few revolutions. Talk of radically different designs always leads to a single name – Wankel.

Although there was briefly a company called Rotary Rocket, the term is much better known as a nickname for the Mazda RX-7 — one of the few cars that used a Wankel, or rotary, engine. If you ever ...

As a result, very few GS Birotors survive today. The C111-I of 1969 had a three-rotor Wankel engine with 276bhp, while the C111-II of 1970 featured a four-rotor engine with 345bhp, giving them top ...

Mazda's Wankel rotary engine has always been unique in the automotive landscape as a mass-produced internal combustion engine that eschews such unsightly items as pistons, valves and camshafts.

The issue, as it has pretty much always been, is environmental. While the Wankel rotary engine does indeed make a lot of power in a small, lightweight package, it does so while burning lots of ...

If there's one thing forever associated with the Wankel rotary engine, it's Mazda. Powering production vehicles from the Cosmo's launch in May 1967 to the last RX-8 leaving the plant in June 2012 ...