Even Nikolaus Otto, the guy behind the four-stroke engine, saw the limits and tried something different. Together with Gottlieb Daimler, he designed a five-stroke engine with three cylinders.

Let’s take a look at some real-world production engines to see how bore and stroke affect performance, not just in theory but in practice. We start with the square and well-known Honda K20 ...

In bygone days we saw two-stroke engines powering lightweight, plastic-bodied cars like the Trabant across Eastern Europe, and these loud and smoky engines are still used in three-wheeled tuk-tuk ...

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 Mans-winning 787B race car, the ...