Valves are among the most complex components in the internal combustion engine. Many cars nowadays incorporate multiple ...

Variable valve timing (VVT) and variable valve lift (VVL) have very similar names, both referring to variable valve performance. Does that mean that they are basically the same thing? The are most ...

March 30, 2007 Over the last century of automobile development, we have seen an enormous range of valve actuation technologies, ranging from pushrod, through single then double overhead camshafts, ...

The 5-valve engine—a short but intense era born from 5 valves per cylinderWhen looking at car or motorcycle engines, the term ...

GALESBURG, Mich.--(BUSINESS WIRE)--Intelligent power management company Eaton today announced its Vehicle Group's cylinder deactivation (CDA) and late intake valve closing (LIVC) technologies have ...

To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...

When you check out the features of a new car, you’ll probably be bombarded with glowing words about its engine’s “advanced valvetrain technology.” How did this happen? They don’t shower us with ...

GALESBURG, Mich.--(BUSINESS WIRE)--Power management company Eaton today announced its Vehicle Group has introduced a complete portfolio of variable valve actuation (VVA) technologies to help ...

Getting air in and exhaust gases out of the combustion chamber under all speeds and driving conditions is essential for a car’s fuel efficiency and low emissions. That’s why virtually all Chevrolet ...

For the PDF version of this article, click here. While the motoring public waits breathlessly for the promise of a revolution in powertrain technology to materialize, the venerable gasoline-powered ...

A typical four-stroke (Otto) engine performs intake, compression, combustion and exhaust. Otto’s modern four-stroke engine ...