Toyota makes some of the most durable trucks in the world—they’re so long-lasting, in fact, that they often go a full decade without major updates. That might change soon if an engine described in a ...

Low- And High-Compression Fuel Economy Engines: The Techniques Are About The Same, But The Approach To Each Is Somewhat Different. A.Most stock cylinder heads have factory-cut undercuts of the type ...

2.Reduced engine rpm (without attending losses in net torque) tend to improve overall fuel economy and driveability. 3.Treat multi-cylinder engines as a combination of several single-cylinder engines, ...

According to co-founder and CEO Alec Schkolnik, the X Engine design combines the high compression ratio and direct injection of a diesel engine with the constant volume combustion process of an Otto ...

Just a few months ago, I wrote about how Nissan was able to produce a road-going engine with a thermal efficiency—the amount ...

The compression ratio can vary from a highly boosted 8:1 ratio, to an Atkinson-cycle running 14:1 ratio. What this means is the engine can produce significant horsepower by using the low compression ...

Airbus Helicopters has completed the first flight of a lightweight, high-compression engine (HCE) on an H120 helicopter technology demonstrator. The 6 November sortie of the light-single, modified ...

GM has filed a patent application for so-called “Multilink Cranktrains with Combined Eccentric Shaft and Camshaft Drive System for Internal Combustion Engines.” The system is designed to provide ...

Throughout the history of motorized vehicles, a number of engines have become famous for being the best of their generation. Even motorcyclists have heard of a Chevy 427 small block V8, the engine of ...

F1 is bracing for its first major political firestorm of the 2026 era, due to a potential loophole in the engine regulations.