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, ...

Diesel engines are different from gas engines in numerous ways, including their use of high compression ratios. Here's why ...

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 ...

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 ...

This BMW engine is used in some of the finest cars of the 1990s and pushes them to high-revving and tire-screeching levels - ...

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 ...