An inlet manifold or intake manifold is the part of an internal combustion engine that supplies the fuel/air mixture to the cylinders. The word manifold comes from the Old English word manigfeald and
Carburetors used as intake runners
Comparison of a stock intake manifold for a Volkswagen 1.8T engine (top) to a custom-built one used in competition (bottom). In the custom-built manifold, the runners to the intake ports on the cylinder head are much wider and more gently tapered. This difference improves the volumetric efficiency of the engine's fuel/air intake.
Lower intake manifold on a 1999 Mazda Miata engine, showing components of a variable length intake system.
A carburetor is a device used by a gasoline internal combustion engine to control and mix air and fuel entering the engine. The primary method of adding fuel to the intake air is through the Venturi e
Inlet manifold
…composite plastic materials is gaining popularity (e.g. most Chrysler 4-cylinders, Ford Zetec 2.0, Duratec 2.0 and 2.3, and GM's Ecotec series). The carburetor or the fuel injectors spray fuel droplets into the air in the manifold. Due to electrostatic forces and condensation from the boundary layer, some of…
Two-barrel downdraft Holley 2280 carburetor
1979 Evinrude Type I side draft carburetor
A - airhorn B - choke plate C - external bowl vent D - choke pull-off E - throttle body and mounting base F - float bowl G - fuel inlet H - idle mixture adjusting screw J - vacuum nipples K - fast-idle cam L - throttle lever M - idle speed adjusting crackscrew N - internal bowl vent
Holley "Visi-Flo" model #1904 carburetors from the 1950s, factory equipped with transparent glass bowls