The engine with no pistons. In 1957, engineer Felix Wankel did the unthinkable. He built a working rotary engine that had no pistons at all. Instead of cylinders firing up and down, it used a spinning triangle inside an oval chamber to generate continuous power with fewer parts and smoother motion. Mazda was the only car maker crazy enough to mass produce it, and they turned it into the RX-7, a lightweight sports car with a tiny engine that revved like a motorcycle. At just 1.3 liters, the Wanke

Engines have a hidden language, and the Mazda 13B rotary engine rewrote the rules. Unlike typical piston engines, the 13B used a rotor that spins inside an oval housing, creating power through a different type of motion, continuous rotary cycles. This tiny 1.3 liter engine could rev insanely high and produce shocking performance in cars like the RX-7. Despite its small size, the rotary engine had fewer moving parts, making it lightweight and mechanically simple. But here's the twist. It also con

An In-Depth Look at the Mazda Rx-7 Wankel Engine | Engineering Explained