Carter -MALOSSI VR-One, aspirazione a lamellare Vespa PX 125-150

Description

Crankcase - MALOSSI VR-One, lamellar intake Vespa PX125-150 Elestart The V-One has been designed for those who want a crankcase that is perfectly replaceable with the original, supplied with all the components necessary for assembly (see above), and that allows maximum interchangeability with the components on the market. The V-One can be used either for a complete restoration, as it does not require any modification to the vehicle and fits all original Piaggio parts, or for a simple freshening up to give the engine a touch of liveliness with a moderate tuning such as the one offered by our 178cc thermic unit, art.3117676T, which does not require any additional modification. The crankcase housings are designed to accept the original bearings and crank seals (not supplied). V-One can be fitted with the original Dell'Orto Si 24-24 carburettor, in particular the mixer assembly is easy and is made possible by the special support pin, included and supplied already fitted. It is possible to use either the original crankshaft or our 57mm stroke rotary valve crankshaft art. no. 5316082. Whichever you choose, the intake has in any case been revised and implemented thanks to our modern CAD systems that have profiled an optimised intake duct in the crankcase. Malossi decided to make a break with the past to create an iconic component for an equally iconic vehicle such as the Vespa PX E 200! Putting all the technology and knowledge acquired along the roads and tracks around the world to good use, Malossi has developed the new V-One and VR-One crankcases. The design, study, research and production of these crankcases are Malossi's way of paying tribute to the fans of these vehicles. The two models give tuners, restorers and, more generally, all owners of a Vespa PX E 200 the opportunity to indulge themselves and choose the modification path that best suits their needs: The amateur, the restorer, the traveller and the simple Sunday tourist, looking for a component that can be perfectly substituted for the original, that does not require any modification to the vehicle and offers the widest choice of components, from the original to the main items on the market, will have the V-One SPORT crankcase at their disposal The tuner looking for maximum performance the best internal fluid dynamics and the greatest possibility of engine development will be able to purchase the VR-One MHR crankcase Technical characteristics MADE ENTIRELY IN ITALY The technical and technological advancement of Malossi is the greatest strength of our products, the reason why we are convinced that we have created one of the best crankcases ever produced. Strengths In every square millimetre of the crankcase there is an innovative drive that jumps out at the eyes of even the most inexperienced tuner. Gravity die casting, which differentiates these crankcases from the original models made using a die-casting process, combined with the use of modern shell moulding cores, allows us to achieve better and more precise internal shapes. Gravity casting has allowed us to strategically increase the sections in the most stressed areas and to subject the crankcases to a tempering treatment after casting, thus achieving very high mechanical strength. These products are made of a light aluminium alloy Al Si 7 Mg (EN AB and AC 42000) of the highest quality containing the following in the right quantities: Silicon, to increase mechanical resistance, Manganese, for better resilience and resistance to corrosion, Copper and Magnesium, to improve machinability. Machining of the casings is carried out entirely in our workshop using a CAD/CAM process and performed on high-precision CNC machining centres. All bearing and closing surfaces are machined with diamond tools that guarantee very low surface roughness values and virtually perfect fits. Advantages Both crankcases share a number of basic features such as, for example, a reinforced front arm with stress relief ribs and sections with a calculated profile to allow the correct flow and channelling of stresses and ensure better strength. In both models there are pins for the brake shoes, which are installed in-house with presses capable of applying the necessary forces to make the couplings required by our designers. In addition to the brake shoes, the housings are supplied with the M7 studs required for mounting the gear selector. Finally, no version excludes the original electric starter, the actuator of which can be mounted in the special plate in the volute. Fluid dynamics has finally been implemented! The fact that we have equipped our standard models with transfer cases suitably profiled and sized to perfectly match our 68.5 diameter cylinders, without however excluding the possibility of fitting other thermic units and indeed offering an increase in performance even with these, exempts tuners from the obligation to machine the crankcases to fit more performance cylinders. The M8 studs for cylinder mounting are also included in the package! Thanks to the measures listed, achieving more power is no longer a problem. Even the usual inconvenience of oil leakage from the crankcase has been solved thanks to: Increased pump crankcase walls, which also further contributes to the mechanical strength of the crankcase Use of M8 hanger bolts instead of the original M7 High-precision machining of the locking planes. We have eliminated the crankcase gasket, which was deteriorating and was mainly responsible for oil leakage. Now the crankcases are perfectly matched and sealed with gasket paste, which is resistant to even the highest operating temperatures! We didn't want to stop there! After having assembled and disassembled original crankcases for years, machining them and trying out thousands and thousands of solutions to propose constantly updated components, we directly came up against inefficiencies and inconveniences that we analysed to propose our solutions: this is the case of the crankcase tightening system, which in original components is made with the classic screw-nut system, notoriously inconvenient and uncomfortable for the user. Such a valuable vehicle deserves the best possible maintenance and this entails the need to mount and dismount the various components to replace them or even just to check their correct functioning, overhauling them when necessary. Anyone who has put their hands on the original crankcases without disconnecting the block from the vehicle has certainly come up against the difficulty of handling the components that make up the block due to the awkward and unreachable position of the nuts, which, once unscrewed, risk falling to the ground and getting lost who knows where. Our solution is as simple as it is sought: get rid of the nuts! By creating the threads in the left hand crankcase (or transmission case) and the seats in the right hand side (or ignition case) we have eliminated the need for nuts to tighten the two components. In order to prevent the screw from being accidentally knocked or injured during operation, with the risk of damaging the threads, we have, where possible, made housings on the right-hand side that allow the screws to be fully recessed, thus protecting them from any danger. Products reserved exclusively for competitions in the places intended for them in accordance with the provisions of the competent sporting authorities. We accept no liability for improper use.