Malossi Intake Manifold D 20.5x23 Length 26 Inclined NBR

The Malossi Ø 20.5x23 inclined intake manifold is an essential component for Piaggio and Gilera 50cc 2-stroke engines. This manifold serves as an access corridor for the air-fuel mixture in the engine, allowing for optimal performance.

The overall performance of an 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 plays a crucial role in volumetric efficiency by minimizing losses due to friction along the mixture's path.

In addition, the intake manifold acts as an accumulation lung for the fresh charge, allowing the mixture to compress against the reeds when the reed valve closes. This component is designed to ensure maximum performance within a specific range of engine speeds (tuned manifold).

In addition to these functions, the intake manifold also connects the carburetor to the engine crankcase or cylinder, reducing vibrations and preventing fuel and air emulsion in the carburetor float bowl.

With its extensive experience in the field of engine fuel systems, Malossi has developed a new line of rubber and aluminum alloy manifolds for the latest generation 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 encapsulated in a plastic material resistant to oils and gasoline. This ensures a rigid attachment base to the crankcase and good elasticity of the manifold body.

SPECIFICATIONS

• Material: NBR
• Interaxis: 52 mm
• Holes: Ø 6.5
• Conduit: Ø 20.5
• Inlet: Ø 23
• Total length: 26
• Carburetor application: Original, PHVA 12-17.5, PHBG 15-21

COMPATIBILITY NOTES

The manifold is compatible with the original air filter.