Malossi D 19x24 inclined manifold for PHBG 17/18/19/20/21 carburetors

The Malossi Ø 19x24 inclined intake manifold is designed for PHBG 17-18-19-20-21 carburetors. This intake manifold serves as an access corridor for the air-fuel mixture into the engine through the reed valve.

The overall performance of an engine depends on various factors, including volumetric, thermodynamic, and mechanical efficiency. Volumetric efficiency represents the ratio between the amount of mixture entering the combustion chamber and the engine displacement.

One of the main influences on volumetric efficiency is the friction that the fluid encounters during its path from the air filter to the combustion chamber. The intake manifold plays a crucial role in minimizing this loss by avoiding abrupt changes in section and sharp edges along the mixture's path.

In addition, the manifold acts as an accumulation lung 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 performance.

The manifold also serves the purpose of connecting the carburetor to the engine crankcase or cylinder, reducing vibrations and preventing the emulsion of fuel and air in the carburetor float bowl.

Malossi technicians have carefully studied this component to fully exploit its qualities. Malossi's line of rubber and aluminum manifolds has been tested and developed by the Malossi experience 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, ensuring a rigid mounting base and good elasticity of the manifold body.