GMC Intake Manifold

An automobile is a combination of complicated automotive components and systems. Each of these systems or components performs an indispensable function in order for an automobile to work and efficiently run. The main system divisions of an automobile are the brake system, cooling system, electrical system, engine system, air-conditioning and heating system, body and exterior, exhaust system, fuel system, steering and suspension system, and drive train. However, there is still one important system that plays a vital role in the overall performance of a car and that is the intake system.

An intake system is composed of various components that deliver air to a late-model engine. With the air generally flowing through box and filter, the air also goes through the throttle body by ducting and after which, the air passes the intake manifold and then to the cylinder head. Intake systems can improve a vehicle’s performance and often its fuel economy by using less restrictive intake system components. Also, switching to a cold intake system can help enhance the vehicle’s performance.

The intake manifold like the GMC intake manifold is one important component of the intake system together with the air filters, cold air induction, ram induction manifolds, and manifold heat control. Intake manifolds are located between the throttle body and the cylinder head. Air need to pass this component before it can reach the combustion chambers which is an engine area where burning of the air and fuel mixture takes place. With the vintage vehicles, a carburetor is on top of the intake manifold for easy hurling of the air and fuel to the cylinder head.

Moreover, an intake manifold is a system of passages which conduct the fuel mixture from the carburetor to the intake valves of the engine. An engine’s efficient operation depends greatly on the manifold design that is why manifolds are designed to provide equal fuel charge strength and quality when taken into each cylinder head for smooth and even engine operation.

And because of the suction effect of the downward movement of the pistons in a reciprocating piston engine, a limited vacuum which is lower than atmospheric pressure subsists in the intake manifold. This manifold vacuum can be utilized as a source of automobile ancillary power to drive auxiliary systems such as ignition advance, power assisted brakes, cruise control, windscreen wipers, power windows, ventilation systems and similar others.