Some engines use a spark to ignite their fuel, and others rely on compression. What does all of that mean? And how do the two ...

As a result, his surname is often used synonymously for the four-stroke cycle. Rudolf Diesel invented the compression ignition engine in 1897, though his first working model was produced in 1893.

The Cummins 6.7L and Ford Power Stroke 6.7L engines are arguably two of the most popular diesel units on the market. How do ...

Infiniti has unveiled a first-ever variable compression ratio, for a four-cylinder engine that will go into production for 2018.

Diesel engines are used for a wide variety of purposes where torque is important. But what makes diesel engines so torquey?

The required increase in temperature is typically achieved by a high 'compression ratio', which usually ranges between 14:1 and 20:1 in a diesel. The compression ratio defines the ratio between ...

High compression, typical of diesel engines, is no longer needed to make the fuel ignite; in fact, the chemistry causing this auto ignition process exists only at lower compression ratios.

With the addition of super-high compression ratios, diesel makes much more torque. The high flash rate of diesel makes it predictable and stable.

The cam is a Crane 282-H06. I am able to calculate the head gasket thickness necessary to achieve a static 10:1 compression ratio, assuming the valves are closed for the entire compression stroke.

This, along with as high a compression ratio as the fuel will stand, means significantly higher pressures on the power stroke.

The required increase in temperature is typically achieved by a high 'compression ratio', which usually ranges between 14:1 and 20:1 in a diesel. The compression ratio defines the ratio between ...