Malossi Intake Manifold D 21 for PHBG 21 Carburetors for kit 1611200

The Malossi Ø 21 intake manifold is specifically designed for PHBG 21 carburetors. This component plays a fundamental role in the engine's fuel system, as it serves as an access corridor for the air-fuel mixture. The overall performance of the engine depends on several factors, including volumetric efficiency, thermodynamic efficiency, and mechanical efficiency.

Volumetric efficiency represents the ratio between the amount of mixture entering the combustion chamber and the engine's displacement. One of the main factors that affects this efficiency is friction loss along the path of the mixture, from the air filter to the combustion chamber. The intake manifold plays a crucial role in minimizing these losses, allowing the fluid to pass through it without obstacles.

In addition, the intake manifold also serves as a reservoir for the fresh charge. When the reed valve closes, the mixture accumulates in the manifold, compressing against the reeds. Each manifold has a specific range of RPM at which it reaches peak efficiency and is designed specifically to optimize this characteristic (tuned manifold).

In addition to these functions, the intake manifold connects the carburetor to the engine crankcase or cylinder and also dampens the vibrations transmitted from the crankcase to the carburetor. This prevents the phenomenon of fuel and air emulsion in the carburetor float bowl.

The Malossi Ø 21 intake manifold has been developed and tested by the Malossi research department, which has extensive experience in the field of engine fuel systems. This new line of manifolds is made with a composite structure, combining an aluminum insert with a material resistant to oils and fuels. This combination ensures a rigid attachment to the crankcase and good elasticity of the manifold body.

Thanks to meticulous design and the extensive experience of Malossi technicians, the Malossi Ø 21 manifold offers optimal performance and exceptional durability.