The rotary engine was an unconventional design that delivered great power for its size. Here's what's good and bad about it.

Rotary engines made their biggest impact in Mazda sports cars, but a recent episode of "Jay Leno's Garage" delves into the rotary's earlier history. Before it was popularized by Mazda, the rotary ...

You hear endless myths about the Mazda RX-7, from breathless praise of its “magic” to horror stories about blown apex seals.

There is no such thing as a torque motor. Any engine that has torque has horsepower. Any engine that produces 300 lbs.-ft. of torque at 3000 rpm has 171 hp at that engine speed.Anyengine—long stroke, ...

Displacement: 15.9 L (970.38 cu in.) Bore and Stroke: 115 mm (4.53 in.) x 170 mm (6.69 in.) The rotary engine reduced rough the running and overheating of early air-cooled engines, namely.