GM has filed a patent application a variable displacement valvetrain system with rocker shaft porting and insert sleeves for ...

Here is a practical and relatable breakdown of the top car problems mechanics hope you never learn to fix. Knowing what to ...

Quick-lube oil changes use $3 filters without anti-drainback valves, causing dry starts that grind metal and destroy engines ...

A small gap with big importance in the performance and health of an engine - here's everything you need to know.

To obtain a thorough insight into the movements of slide-valves, and to completely understand the distribution of steam, is generally a difficult matter to first-year students and engineering ...

Abstract: Exhaust gas recirculation valves used in internal combustion engines are highly nonlinear due to its nonlinear mechanism and dry friction dominated at low valve speed that could lead to ...

If you are trying to make a race engine scream at high rpm, you eventually hit a wall where physics starts fighting back. That wall is usually valvetrain weight. At the PRI Show this year, PBM offered ...