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38.48€
Available Sold and shipped by: RESILIENZA LUXEMBOURG SÀRL-S
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nbr tilted intake manifold ø 21-23 l.24 for yamaha - mbk - minarelli horizontal 2t engines

Code: 02 8481b

Model: aprilia sr replica 50 2t lc <-1999

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Description

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.

 

 

Derbi - Minarelli engines

APRILIA - HONDA - PIAGGIO

Material

 INTER-AXIS mm

Ø hole

Ø manifolds

Ø inlet

total lenght

carburettor applications

Note

02 6639B

NBR

61x40

6,5

 30

 35

 27

PHBH 26-30

VHST 26-30 

Not suitable for original air box filter

 

Piaggio - Gilera 2T 50 engines

APRILIA - DERBI - GILERA - ITALJET - PIAGGIO

Material

 INTER-AXIS mm

Ø hole

Ø manifolds

Ø inlet

total lenght

carburettor applications

Note

02 7528B

NBR

52 6,5 26 30 31,5

PHBL

Not suitable for original air box filter

02 8480B

NBR

52 6,5 22 28 26

PHVB 22

For original air box filter

02 5733B

NBR

52 6,5 20,5 23 26

ORIGINALS

PHVA 12-17,5 PHBG 15-21

Original spare Ø 20: for original air box filter

 

Yamaha - MBK - Minarelli horizontal 2T 100 engines

APRILIA - BENELLI - ITALJET - MBK - YAMAHA

Material

Ø hole

Ø manifolds

Ø inlet

total lenght

carburettor applications

Note

02 8399B

NBR

6,7 22 28 24,5

PHVB 22

For original air box filter

02 8481B

NBR

6,7 21 23 24

ORIGINALS

PHVA 12-17,5 PHBG 15-21

Original spare Ø 20: for original air box filter

 

Yamaha - MBK - Minarelli vertical 2T 50 engines

APRILIA - ITALJET - MBK - YAMAHA

Material

INTER-AXIS mm

Ø hole

Ø manifolds

Ø inlet

total lenght

carburettor applications

Note

02 8400B

NBR

58x35 6,5 20,5 23 19

ORIGINALS

PHVA 12-17,5 PHBG 15-21

Original spare Ø 20: for original air box filter

02 8479B

NBR

58x35 6,5 21 27 19

PHVB 22

Not suitable for original air box filter

 

 

 

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

Compatible brands and models

Brand Model
AEON MOTOR AEON MOTOR COBRA 50 2T (AT70)
APRILIA APRILIA SR 50 2T 1994->
APRILIA APRILIA AREA 51 50 2T LC
APRILIA APRILIA GULLIVER 50 2T LC
APRILIA APRILIA GULLIVER 50 2T
APRILIA APRILIA HABANA 50 2T
APRILIA APRILIA RALLY 50 2T (MINARELLI)
APRILIA APRILIA SR NETSCAPER 50 2T LC (MINARELLI)
APRILIA APRILIA RALLY 50 2T LC (MINARELLI)
APRILIA APRILIA SCARABEO 100 2T Original spare Ø 20: for original air box filter
APRILIA APRILIA SCARABEO 50 2T (MINARELLI)
APRILIA APRILIA SR RACING 50 2T LC (MINARELLI)
APRILIA APRILIA SONIC 50 2T
APRILIA APRILIA SONIC 50 2T LC
APRILIA APRILIA SR REPLICA 50 2T LC 2000-> (APRILIA)
APRILIA APRILIA SR REPLICA 50 2T LC <-1999
APRILIA APRILIA SR STEALTH 50 2T LC (MINARELLI)
APRILIA APRILIA SR WWW 50 2T
ATALA ATALA CAROSELLO 50 2T
BENELLI BENELLI 491 SPORT 50 2T LC (MINARELLI)
BETA BETA ARK 50 2T
BETA BETA ARK 50 2T LC
BETA BETA CHRONO 50 2T
BETA BETA EIKON 50 2T LC
BENELLI BENELLI 491 GT 50 2T (MINARELLI)
BENELLI BENELLI K2 100 2T Original spare Ø 20: for original air box filter
BENELLI BENELLI K2 50 2T
BENELLI BENELLI K2 50 2T LC
BENELLI BENELLI NAKED 50 2T
BENELLI BENELLI PEPE 50 2T
BENELLI BENELLI PEPE LX 50 2T euro 2 (QJ1E40QMB-4)
BETA BETA QUADRA 50 2T
BENELLI BENELLI QuattronoveX 50 2T euro 2
BETA BETA TEMPO 50 2T
BSV BSV AX 50
BSV BSV GZ 50
CPI CPI ARAGON GP 50 2T
CPI CPI HUSSAR 50 2T <-2002 (50 C)
CPI CPI HUSSAR 50 2T 2003->
CPI CPI OLIVER 50 2T <-2002 (50 C)
CPI CPI OLIVER 50 2T 2003->
CPI CPI POPCORN 50 2T <-2002 (50 C)
CPI CPI POPCORN 50 2T 2003->
EXPLORER EXPLORER CRACKER 50 2T 2003-> (GE 1E 400 MB)
GARELLI GARELLI GSP 50 2T LC euro 2 (1PE40MB)
HUPPER HUPPER MONTECARLO 30 50 2T (1E40QMB)
ITALJET ITALJET DRAGSTER 50 2T LC
ITALJET ITALJET MILLENNIUM 100 2T Original spare Ø 20: for original air box filter
MALAGUTI MALAGUTI F10 50 2T
MALAGUTI MALAGUTI F10 WAP 50 2T euro 2 (QJ*CMA03C*)
MALAGUTI MALAGUTI F12-PHANTOM 50 2T
MALAGUTI MALAGUTI CENTRO 50 2T
MALAGUTI MALAGUTI CIAK 50 2T
MALAGUTI MALAGUTI F15 FIREFOX 50 2T LC
MALAGUTI MALAGUTI F12 DIGIT KAT-PHANTOM 50 2T LC
MALAGUTI MALAGUTI F12 DIGIT KAT-PHANTOM 50 2T LC euro 2
MALAGUTI MALAGUTI F12-PHANTOM 50 2T LC
MALAGUTI MALAGUTI F12 R ARIA 50 2T euro 2 (QJ*CMA02C*)
MALAGUTI MALAGUTI F12 R LC 50 2T LC euro 2
MALAGUTI MALAGUTI YESTERDAY 50 2T
MBK MBK BOOSTER 100 2T Original spare Ø 20: for original air box filter
MBK MBK EVOLIS 50 2T
MBK MBK EV 50
MBK MBK FIZZ 50 2T
MBK MBK FLIPPER 50 2T
MBK MBK FORTE 50 2T
MBK MBK HOT CHAMP 50 2T
MBK MBK MACH G 50 2T
MBK MBK MACH G 50 2T LC
MBK MBK NITRO 100 2T Original spare Ø 20: for original air box filter
MBK MBK NITRO 50 2T LC
MBK MBK OVETTO 100 2T Original spare Ø 20: for original air box filter
MBK MBK OVETTO 50 2T
MBK MBK SORRISO 50 2T 1996->
MOTRON MOTRON SYNCRO 50
MOTRON MOTRON THUNDER'S 50
YAMAHA YAMAHA AEROX 100 2T Original spare Ø 20: for original air box filter
YAMAHA YAMAHA AEROX 50 2T LC euro 0-1
YAMAHA YAMAHA AEROX 50 2T LC euro 2
YAMAHA YAMAHA AXIS 50 2T
YAMAHA YAMAHA BREEZE 50 2T
YAMAHA YAMAHA BW'S 100 2T Original spare Ø 20: for original air box filter
YAMAHA YAMAHA JOG ER 50 2T
YAMAHA YAMAHA JOG 50 2T
YAMAHA YAMAHA JOG R 50 2T
YAMAHA YAMAHA JOGRR 50 2T LC euro 2
YAMAHA YAMAHA JOG Z 50 2T
YAMAHA YAMAHA NEO'S 100 2T Original spare Ø 20: for original air box filter
YAMAHA YAMAHA NEO'S 50 2T
YAMAHA YAMAHA VINO 50 2T
YAMAHA YAMAHA WHY 50 2T
YAMAHA YAMAHA ZEST 50 2T

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nbr tilted intake manifold ø 21-23 l.24 for yamaha - mbk - minarelli horizontal 2t engines

38.48€
Add to cart