Time was when a valve job was done with some valve-grinding compound and a vacuum cup on a stick. But no more. Today's high performance engines require the same machining precision in the valves that ...

Most modern gasoline and diesel-powered engines found in the cars and trucks seen on today's roadways rely on the four-cycle-engine principles developed in the late 1800s by Nikolaus Otto, Gottlieb ...

Nissan Motor Co., Ltd. today introduced a new engine technology that delivers a balance of responsiveness and power, fuel efficiency and low emissions. The new system combines the technologies behind ...

In this fascinating video, we journey through the intricate process of building a rotary valve engine from scratch. Watch as ...

Taking care of your vehicle is vital to ensure it stays in great condition. Your brakes could give you trouble someday, or your suspension could require tinkering, inevitably leading you to an auto ...

The choke valve in an engine's carburetor, whether it's a Holley carburetor or another brand, helps a cold engine start by restricting some of the airflow into it. When the engine is cold, the choke ...

Ordinarily we don’t choose to celebrate engines outside the cars they are fitted to, it’s hard not to make an exception for a ...

An internal combustion engine is like a big air pump, and the more air you can get it to pump, the more torque and horsepower it will make. Things like bigger camshafts, aftermarket intakes and ...

It's very easy to make fun of 1980s Maserati today. Its cars from this time haven't aged well, with styling that's a bit too 1980s and a reputation for less-than-stellar reliability. But at the time, ...

You all know Koenigsegg (hopefully), but most of you have probably not heard about its sister company, Freevalve. Well, prepare to be blown away, because they have unveiled a production specification ...

An Italian tune-up involves driving a car hard to hit the RPM redline. In theory, this can burn off carbon deposits, but it's ...