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

The Malossi Ø 20x24 straight intake manifold with a 42 mm center distance for PHBG 19 A carburetors is an essential component for the proper functioning of the engine. This intake manifold allows the entry of the air-fuel mixture into the engine through the reed valve.

The total performance of the engine depends on various factors, including volumetric, thermodynamic, and mechanical efficiency. Volumetric efficiency indicates the amount of mixture that is introduced into the combustion chamber relative to the engine displacement. One of the main factors that affects volumetric efficiency is the friction loss that the mixture encounters during its path from the air filter to the combustion chamber. The intake manifold plays a fundamental role in this process, as it must allow the passage of the mixture with minimal loss.

In addition, the intake manifold acts as a reservoir for the fresh charge, allowing the mixture to accumulate and compress against the reeds when the reed valve closes. Each manifold has a specific speed range in which it expresses maximum efficiency.

The intake manifold also serves to connect the carburetor to the engine crankcase or cylinder, and can dampen the vibrations transmitted from the crankcase to the carburetor to prevent the emulsion of fuel and air in the carburetor float bowl.

Malossi, with its many years of experience in the field of engine fuel systems, has developed a new line of rubber and aluminum alloy manifolds for the scooters of the new generation. These manifolds have been tested and developed by the Malossi research department, both on the road and on race circuits. Malossi rubber manifolds have a composite structure, with an aluminum insert embedded in a plastic material resistant to oils and fuels, ensuring rigidity in the mounting base and good elasticity of the manifold body.

Thanks to careful study and the expertise of Malossi technicians, this seemingly simple component offers optimal and long-lasting performance.