GUMIJASTO RAVNO SESALNO KOLENO Ø 22 medosje 56 PHBL 21-22

29,07 € 23,83 €
DOBAVLJIVO
SKU
021333
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INTAKE MANIFOLDS
Intake manifold conveys the air-fuel mixture to the engine by means of 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.

 

KAWASAKI
900 - 1000 cc

Material

INTER-AXIS
mm

Ø hole

Ø manifolds

Ø inlet

total length

carburettors applications

Note

02 1134

NBR 58 6,25 32 44 - 2 grooves 33 PHF 32B - PHBE 32B

Straight misaligned - 4 mm side

02 1135

NBR 58 6,25 32 44 - 2 grooves 33 PHF 32B - PHBE 32B Straight

Standard

Material

INTER-AXIS mm

Ø hole

Ø manifolds

Ø inlet

total length

carburettors applications

Note

02 1325

NBR 56->61 6 20 25 - 1 groove 23,5 PHBG 19-20 B Straight

Standard

Material

INTER-AXIS mm

Ø hole

Ø manifolds

Ø inlet

total length

carburettors applications

Note

02 1333

NBR 56->61 6 22 31 - 1 groove

23,5

PHBL 121-22 B

Straight

02 1354B

NBR

56->61

6

36

40 - 1 groove

23,5

PHBE 36 P

Straight

Standard

Material

INTER-AXIS mm

Ø hole

Ø manifolds

Ø inlet

total length

carburettors applications

Note

02 1362

NBR 56->61 6 36 44 - 2 grooves 23,5 PHBE 36 B - PHF 36 B Straight

 

Products reserved exclusively for racing in specifically designed locations according to the provisions of the competent sporting authorities. We disclaim all liability for improper use