Hydraulic roller cams have plenty going for them, including power, reliability, and reduced friction. Heck, even the OEMs have embraced the benefits of hydraulic roller cams. Often thought of as the ...

This was a lot tougher than we thought. Some time ago, Speed-O-Motive built a test engine whose only purpose in life was to live on the dyno and test our harebrained ideas to make more power. While ...

Northrop Grumman tested a solid rocket motor Dec. 4 as part of an internal program to advance solid rocket propulsion technologies.

As the first flight of NASA’s experimental X-59 aircraft draws near, the agency seems not to waste any chance when it comes to testing the plane’s systems. Why, from time to time it even goes off ...

Honda has been at the forefront of hybrid powertrain innovation ever since the technology first entered the mainstream consciousness more than 15 years ago. And for nearly a decade, the company's ...