Malossi 28mm Carburetor Kit For Piaggio and Vespa 2 Stroke

Malossi MHR 28mm Carburetor Kit for Piaggio Scooter Racing. 

Malossi Racing Fuel Systems

Malossi MHR racetrack ready fuel systems have been specially designed and calibrated for high-performance motors, and are complete with all parts needed for assembly. MALOSSI is the leader in the design and production of special fuel systems for racing scooters.
MALOSSI systems are the result of intense research and precision drawings and calculations. The intake manifolds, reed valves, and air intakes designed by MALOSSI undergo thousands of hours of tests to check their performance and reliability.
Carburetors are customized for each scooter according to the specific characteristics of the motor and air intake, and are completely calibrated for dosage of the air-fuel mixture under all power delivery conditions.
MALOSSI produces special components for fuel systems in order to supply a product that wins on the race track. 

Malossi Racing Intake Manifolds
 
Intake manifold conveys the air-fuel mixture to the engine by means of a reed valve.
 
The total efficiency of an engine is calculated as the product of various partial efficiencies, such as:
- volumetric efficiency
- thermodynamic efficiency
- mechanical efficiency
 
Volumetric efficiency is the ratio between the quantity of fuel that can enter the combustion chamber and the displacement of the engine.
 
One of the main factors affecting volumetric efficiency is loss due to friction that the fluid encounters (air-fuel mix) when feeding from the air filter to the combustion chamber. Therefore, one of the components that greatly influences this loss is the intake manifold, since all of the mix has to travel through it with the minimum possible loss . For this reason, sudden increases in section and corners along the mix path must absolutely be avoided.
The intake manifold also acts as an accumulation tank for the fresh load , since the mix, travelling at a certain speed, requires time to stop when the reed valve closes. Therefore, mix collects in the manifold and exerts pressure against the reeds. For this reason, each manifold has a well-defined range of revolutions within which it provided maximum efficiency (tuned manifold).
In addition, the manifold supports the carburettor by connecting it to the engine casing or to the cylinder , damping vibrations between casing and carburettor and preventing emulsion of gas and air in the carburettor tank.
This apparently simple component therefore requires a great deal of study in order to take full advantage of all of its qualities.
Malossi engineers have achieved this to perfection. Malossi, with decades of experience in engine fuelling systems, has created a new line of manifolds in rubber and aluminium alloy for the new generation of scooters, and has tested and developed the line on roads and race tracks.
Malossi rubber manifolds feature a composite structure. Their construction begins with an aluminium insert that is encased in a special plastic material that is impervious to oils and fuels, guaranteeing increased rigidity at the point of attachment to the casing and greater flexibility of the manifold body.

APRILIA APRILIA SPORTCITY ONE STREET 50 2T euro 2
APRILIA APRILIA SR (carb.) 50 2T LC 2004 (PIAGGIO)
DERBI DERBI ATLANTIS - BULLET 50 2T 2003->
DERBI DERBI GP1 50 2T LC
DERBI DERBI GP1 OPEN 50 2T LC
DERBI DERBI GP1 REVOLUTION 50 2T LC
ITALJET ITALJET JET SET 50 2T
PIAGGIO PIAGGIO FLY 50 2T
PIAGGIO PIAGGIO LT50 
PIAGGIO PIAGGIO TYPHOON 50 2T 2007->2010
VESPA VESPA ET2 50

01/15/2019

  • Model: 1611775

$179.97