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Carburetors used as intake runners
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 manif
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.
Lower intake manifold on a 1999 Mazda Miata engine, showing components of a variable length intake system.
Two-barrel downdraft Holley 2280 carburetor
Two-barrel downdraft Holley 2280 carburetor
1979 Evinrude Type I side draft 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 mixtu
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
Holley "Visi-Flo" model #1904 carburetors from the 1950s, factory equipped with transparent glass bowls