The runner entry view shows how the center of flow pressure is not always in the geometric center of a port or runner. And now, before we dig into the ground-level aspects of intake manifold ...

Therefore, there are only certain intake manifold features that can be evaluated on an airflow bench, although these include mapping of flow pressure profiles (pressure distributions) and specific ...

The Mercedes-Benz 300SL engine. In a car's intake manifold, air enters at atmospheric pressure, rushing toward the intake valves at tremendous speed. But when the intake valves close completely ...

There is no question that the DOHC 5.0L Coyote engine has taken Mustang performance to new levels, and the spotlight, but if you have a Three-Valve 4.6L, there are still a lot of performance ...

This system uses a sensor called a MAP, which measures the manifold absolute pressure and compares it with the atmospheric pressure outside the intake manifold (Image F). This information ...

This allows even slight crankcase pressure to combine with intake manifold vacuum to push oil from the lifter valley directly into the intake ports. Even if you do not see blue oil smoke on ...

The manifold absolute pressure sensor reads the amount of pressure or vacuum (also called “engine load”) in the intake manifold, where outside air is divvied up in proper amounts and ...

A typical catch can plugs into a hose running from the top of your engine's crankcase to the intake manifold. This hose relieves pressure in the crankcase generated by blow-by (when pressure ...

Fuel injected engines measure every little bit of air entering the engine and the Positive Crankcase Ventilation (PCV) system exposes the crankcase to this intake manifold pressure. The dipstick ...

If that occurs, your engine oil pressure may drop ... until you discover oil residue somewhere, like the intake manifold. While a small amount of oil in the intake manifold can be normal, an ...