An engine's displacement dictates power output based on the bore and stroke, while compression ratio influences how strong ...

The same solution for very different reasons.

Compression is only one thing Hyundai wants to be able to adjust.

Direct-drive fans waste energy and over-cool gas, reducing efficiency and throughput. Horton’s Gas Thermal Control Clutch ...

The Triumph 765 might be a road bike at heart, but for Moto2 it’s transformed into one of the most tightly regulated and ...

Taking an engine compression test is sort of like checking your car's blood pressure. It's a quick and painless procedure that can reveal hidden issues.

With a Master's degree in English Literature and six years of writing experience, Aayush has been contributing to TopSpeed for over two years. Since 95% of his personality is motorcycles, he goes ...

Unless you drive a Wankel rotary, your combustion engine vehicle has pistons, and each of those pistons has three rings. Why ...

Late Model Engines transformed the 7.3-liter Godzilla engine into the massive Bosszilla naturally aspirated 460 stroker for ...

Have you ever heard of the Silent Knight? It was a unique engine that ditched noisy valves for a weirder, quieter, and more ...

Toyota recommends 87 octane for the 2025 Prius, but one owner hit 61.1 MPG using 91 premium. We analyze Jason Black’s ...

Cruiser motorcycles and large engines go hand in hand. That gets you the lazy, effortless torque of a large-capacity engine, the stress-free lope at highway speeds, and the ability to carry a lot of ...