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

One of the first things many people do when they want to improve their vehicle's performance is look for bolt-on modifications. These items bolt onto the vehicle, making them easy to remove if you ...

Honda’s K-series engines have been around for 25 years, and have earned a reputation for durability, versatility, and tuning ...

Looking to wring out a bit more power from your Chrysler engine? Here are the pros and cons of altering the intake manifold ...

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: The automotive industry has been under continued pressure to improve fuel efficiency because of air pollution, global warming, and rising gasoline prices. One technology to address this need ...

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 ...

Factory composite intakes are great for daily driving, but they can run out of breath when you really start spinning a Coyote engine. Holley is addressing that bottleneck with its new cast-aluminum Hi ...