Last month we showed what gains were available from three aftermarket Three-Valve intake manifolds in naturally aspirated trim. This month we're going to try the same three intakes, only now we'll ...

You have likely heard of variable valve timing by one of the names manufacturers have for the system, such as VVT-i or VTEC.

Despite requiring smaller valves, the total circumference of the three intake valves in a five-valve head can be greater than two larger intake valves in a four-valve head.

The PCV valve not only improves vehicle emissions, but also engine efficiency, reliability, and power. By redirecting the blow-by gasses back into the intake to be burned, the engine can receive as ...

The Ford Motor Company (F) is recalling 90,736 automobiles due to engine intake valve issues that could lead to accidents. The National Highway Traffic Safety Administration (NHTSA) reported on ...

Automotive engine valves may not attract the spotlight, but their contribution to engine performance, efficiency, and ...

There are two types of valves in your engine: intake and exhaust. The first ones are responsible for letting in the air-fuel mixture for the cylinders, while the latter allows the produced gas to ...

Ford will recall 90,736 vehicles as engine intake valves in the vehicles may break while driving, the National Highway Traffic Safety Administration (NHTSA) said on Saturday. The recall impacts ...

However, various valves have been adopted to deliver variable valve timing for better air intake at different RPMs. In its simplest form, a Wankel rotary engine has just two moving parts: the ...

Ford Motor Company (Ford) is recalling certain 2021-2022 Bronco, F-150, Edge, Explorer, Lincoln Nautilus, and Lincoln Aviator vehicles equipped with either a 2.7L or 3.0L Nano EcoBoost engine.

You have likely heard of variable valve timing by one of the names manufacturers have for the system, such as VVT-i or VTEC. So what is it and what does it do?