Does your engine need a valve adjustment? It depends on the age, condition and brand of vehicle you’re driving. Due to the popularization of roller-follower valve train designs that reduce friction ...

Modern internal combustion engines — including those that run on diesel fuel — require a lot of special parts and systems to prevent dumping excess emissions into the atmosphere. Not only are those ...

EGR stands for exhaust gas recirculation, and the EGR valve is part of a system that does as the name implies: recirculate exhaust gas back into the engine’s intake manifold for a return trip to the ...

Theory indicates that because of greater mass airflow, a supercharged, turbocharged, or even nitrous oxideinjected engine might benefit from larger exhaust valves and ports. Real-world engines with ...

There is so much going on with internal combustion engines (ICEs) these days, it can give you a headache just reading about them. That's why we do the research for you and then cram it into bite-size ...

Your engine is composed of many moving parts and pieces. In order to move through the four stages of internal combustion, all of these bits and bobs are quite necessary. Some engines, however, take ...

Original engines in cars built before the early 1970s generally don't have hardened exhaust seats that are resistant to unleaded gas. Nevertheless, tests conducted in the mid-1970s by the U.S. Army, ...

When it comes to the many variables of combustion inside an engine, engineers measure the timing of key events in degrees of crankshaft rotation, a relative frame of reference that remains constant ...

Mobility is changing — it’s electrifying. But not every vehicle is suited for electric propulsion and heavy battery systems. That’s where the rotary exhaust valve (REV) is revolutionary. The Advanced ...