{"product_id":"malossi-carb-boots-28mm-bws-next-dellorto-21mm-02-8399b","title":"MALOSSI CARB. BOOTS 28MM BW'S NEXT (DELLORTO 21MM). 02 8399B","description":"MALOSSI CARB. BOOTS 28MM BW'S NEXT (DELLORTO 21MM). 02 8399B \u003cp\u003e\u003cspan style=\"font-size:11pt\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:12.0pt\"\u003eINTAKE MANIFOLDS\u003cbr\u003e\n\u003cbr\u003e\nIntake manifold conveys the air-fuel mixture to the engine by means of a reed valve.\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cspan style=\"font-size:12.0pt\"\u003eThe total efficiency of an engine is calculated as the product of various partial efficiency, such as:\u003cbr\u003e\n- \u003cstrong\u003evolumetric efficiency\u003c\/strong\u003e\u003cbr\u003e\n- thermodynamic efficiency\u003cbr\u003e\n- mechanical efficiency\u003cbr\u003e\n\u003cbr\u003e\n\u003cstrong\u003eVolumetric efficiency is the ratio between the quantity of fuel that can enter the combustion chamber and the displacement of the engine.\u003c\/strong\u003e\u003cbr\u003e\n\u003cbr\u003e\nOne 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,\u003cstrong\u003e since all of the mix has to travel through it with the minimum possible loss\u003c\/strong\u003e. For this reason, sudden increases in section and corners along the mix path must absolutely be avoided.\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003cp\u003e\u003cspan style=\"font-size:11pt\"\u003e\u003cstrong\u003e\u003cspan style=\"font-size:12.0pt\"\u003eThe intake manifold also acts as an accumulation tank for the fresh load\u003c\/span\u003e\u003c\/strong\u003e\u003cspan style=\"font-size:12.0pt\"\u003e, 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).\u003cbr\u003e\n\u003cbr\u003e\n\u003cstrong\u003eIn addition, the manifold supports the carburetor by connecting it to the engine casing or to the cylinder\u003c\/strong\u003e, damping vibrations between casing and carburetor and preventing emulsion of gas and air in the carburetor tank.\u003cbr\u003e\n\u003cbr\u003e\n\u003cstrong\u003eThis apparently simple component therefore requires a great deal of study in order to take full advantage of all of its qualities.\u003cbr\u003e\n\u003cbr\u003e\nMalossi 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 aluminum alloy for the new generation of scooters, and has tested and developed the line on roads and race tracks.\u003cbr\u003e\n\u003cbr\u003e\nMalossi rubber manifolds feature a composite structure. Their construction begins with an aluminum 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.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\n\u003ctable style=\"box-sizing:border-box; color:#3e3e3e; font-family:Graphik,Arial,Helvetica,sans-serif; font-size:15px; font-style:normal; font-variant-ligatures:normal; font-weight:400; min-height:0px; min-width:0px; text-align:start; text-decoration-color:initial; text-decoration-style:initial; text-decoration-thickness:initial; white-space:normal; width:100%\"\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd style=\"background-color:#e0e0e0\"\u003e\n\t\t\t\u003cp\u003e\u003cstrong\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\t\t\t\u003c\/td\u003e\n\t\t\t\u003ctd style=\"background-color:#e0e0e0\"\u003e\n\t\t\t\u003cp\u003e\u003cstrong\u003e\u003cstrong\u003eØ hole\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\t\t\t\u003c\/td\u003e\n\t\t\t\u003ctd style=\"background-color:#e0e0e0\"\u003e\n\t\t\t\u003cp\u003e\u003cstrong\u003e\u003cstrong\u003eØ \u003c\/strong\u003e\u003cstrong\u003emanifolds\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\t\t\t\u003c\/td\u003e\n\t\t\t\u003ctd style=\"background-color:#e0e0e0\"\u003e\n\t\t\t\u003cp\u003e\u003cstrong\u003e\u003cstrong\u003eØ inlet\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\t\t\t\u003c\/td\u003e\n\t\t\t\u003ctd style=\"background-color:#e0e0e0\"\u003e\n\t\t\t\u003cp\u003e\u003cstrong\u003e\u003cstrong\u003etotal length\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\t\t\t\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003e\n\t\t\t\u003cp\u003eNBR\u003c\/p\u003e\n\t\t\t\u003c\/td\u003e\n\t\t\t\u003ctd\u003e6.7\u003c\/td\u003e\n\t\t\t\u003ctd\u003e22\u003c\/td\u003e\n\t\t\t\u003ctd\u003e28\u003c\/td\u003e\n\t\t\t\u003ctd\u003e24.5\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003e\n\t\t\t\u003cp\u003e \u003c\/p\u003e\n\t\t\t\u003c\/td\u003e\n\t\t\t\u003ctd\u003e \u003c\/td\u003e\n\t\t\t\u003ctd\u003e \u003c\/td\u003e\n\t\t\t\u003ctd\u003e \u003c\/td\u003e\n\t\t\t\u003ctd\u003e \u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e \u003c\/p\u003e","brand":"MALOSSI","offers":[{"title":"Default Title","offer_id":48128110821531,"sku":"MAL02 8399B","price":61.19,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0669\/9742\/0187\/files\/444-028399-B.jpg?v=1778932086","url":"https:\/\/grmotorcycle.com\/products\/malossi-carb-boots-28mm-bws-next-dellorto-21mm-02-8399b","provider":"GR Motorcycle","version":"1.0","type":"link"}