One of the most difficult tuning problems to overcome is the seemingly ever-present engine vacuum leak. Vacuum is an important component of the internal-combustion process because it controls basic ...

These Dyson Week savings only last through Saturday, Aug. 9. Shop huge deals on other popular tools like hair equipment, vacuums, air purifiers and more from the brand. Dyson’s V8 Absolute has gone ...

Cummins’ 5.9L diesel engines have many wonderful traits, from the simplicity of their design to the durability and reliability of their internal components. However, the powerplants also have parts ...

The last time we had this 470-inch Mopar big block on the dyno, it made 751 hp with Trick Flow heads and a dry sump oiling system. The dry sump setup that we used for those tests worked great, but it ...

Jackson Ryan was CNET's science editor, and a multiple award-winning one at that. Earlier, he'd been a scientist, but he realized he wasn't very happy sitting at a lab bench all day. Science writing, ...

Spacex fired up the first Raptor engine designed for the vacuum of space ahead of its future use on its Starship rockets. The Raptor Vacuum was recently shipped from the company’s California ...