Software in place to monitor hydraulic systems during a test firing of NASA's Space Launch System moon rocket was to blame for an early engine shutdown Saturday, not an actual problem with the booster ...

Modern Driveline created a Stealth In-Dash Hydraulic Clutch Master Cylinder. The system offers modern performance and extra ...

While the engineering community continues to explore the benefits of electric and hybrid vehicles—i.e., the environmental and renewable energy factors—the automotive market is still dependent on ...

Most engine technologies in the marine field are dynamic and frequently experiencing modification; one way to minimize the effects on the environment while offering similar or better performances is ...

From the archives: The beauty of hydraulic lifters is that they self-compensate for valvetrain clearances, doing away with the need for valvetrain adjustment. To celebrate HOT ROD's 75th anniversary, ...

The engines of yesteryear were pretty simple, with tappets clackity-clacking away on cam lobes, opening valves, and making a ruckus while doing it. Mechanical lifters were adequate for valve operation ...

Adjust rocker arms frequently—or not at all? Rev to the moon—or stop at the smog layer? These are the eternal questions that have plagued hot rodders trying to decide whether to purchase a mechanical ...