Malossi Manifold D 20x24 center distance 42 for PHBG 19 A carburetors

The Malossi intake manifold Ø 20x24 with a 42mm center distance is designed for PHBG 19 A carburetors. This intake manifold acts as an access corridor for the air-fuel mixture into the engine through the reed valve.

The overall performance of the engine depends on various factors, including volumetric, thermodynamic, and mechanical efficiency. Volumetric efficiency indicates the amount of mixture that can be introduced into the combustion chamber relative to the engine displacement. The intake manifold significantly affects volumetric efficiency, as the mixture must pass through it with minimal loss. It is important to avoid sudden increases in section and sharp edges along the mixture path.

In addition, the intake manifold acts as a lung for the accumulation of fresh charge, allowing the mixture to accumulate in the manifold when the reed valve closes. This component also supports the carburetor and dampens vibrations transmitted from the crankcase to the carburetor, preventing fuel and air emulsion in the carburetor float bowl.

Malossi technicians have carefully studied this component to fully exploit its qualities. With their years of experience in engine fuel systems, Malossi has developed a new line of rubber and aluminum alloy manifolds for the next generation of scooters. These manifolds have been tested and developed by the Malossi research department, both on the road and on race circuits.

Malossi rubber manifolds feature a composite structure, with an aluminum insert embedded in a plastic material resistant to oils and fuels. This structure ensures a rigid attachment base to the crankcase and good elasticity of the manifold body.