Malossi Manifold D 15x19 for SHA 15 Carburetors

The Malossi intake manifold Ø 15x19 for SHA 15 carburetors is an essential component for the proper functioning of the engine. This intake manifold allows the air-fuel mixture to access the engine through the reed valve.

The overall performance of the engine depends on various factors, including volumetric efficiency, thermodynamic efficiency, and mechanical efficiency. Volumetric efficiency indicates the amount of mixture that can enter the combustion chamber relative to the engine displacement. One of the main causes of volumetric efficiency loss is the friction encountered by the mixture along the path from the air filter to the combustion chamber. The intake manifold plays a fundamental role in minimizing this loss by avoiding sudden increases in section and sharp edges along the mixture's path.

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 range of engine speeds in which it expresses maximum efficiency, so it is important to tune it correctly.

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

Malossi technicians have carefully studied this component to fully exploit all its qualities. With its many 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 have a composite structure, with an aluminum insert embedded in a plastic material resistant to oils and gasoline. This ensures considerable rigidity in the mounting base to the crankcase and good elasticity of the manifold body.