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Malossi cylinder Ø 63 IN CAST IRON FOR VESPA COSA - PX 125-150 CC

Malossi cylinder Ø 63 IN CAST IRON FOR VESPA COSA - PX 125-150 CCMalossi cylinder Ø 63 IN CAST IRON FOR VESPA COSA - PX 125-150 CC
Price:

€ 325,98 Discount 20%

260,79 All prices are inclusive of VAT

Item code: 11022
cod. producer: 3117676T
Availability: Available Available immediately
Quantity:

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Description

Cylinder Malossi 63 IN CAST IRON FOR VESPA COSA - PX 125-150 CC

INSIDE YOU WILL FIND THE TOTAL CALIBRATION SI 20 VES. PX CVF COD. 68 4013

BE3 EMULSIFIER
MINIMUM JET 52/140
GETT.MAX 115-105


THERMAL GROUP 63 IN CAST IRON

CYLINDER

The cylinder has a bore increased to 63 mm with a displacement of 178cc and a completely revised internal fluid dynamics. The new transfer system allows correct coupling both with jointed and completely original crankcases, and provides for a special profiling designed to optimize the flow and obtain significant increases in performance, even without carrying out additional work on the vehicle.


DECANTING



The suction ports have a profile designed to correctly orient the incoming flow and obtain high turbulence, thus ensuring an improvement in combustion efficiency and optimal washing. These improvements allow to increase the combustion efficiency, reduce the losses of fresh charge at the exhaust and keep the temperature in the chamber within the permitted levels, even on the piston crown.



The rear ports have been the subject of a profound study that has led to the definition of an innovative double inclination profile (1-2) which, by exploiting the well-known Coand effect, allow for a greater flow rate than traditional rear ports. differentiating for the orientation of the jet from the single opening in the combustion chamber: in this way it was possible to reduce the short-circuits of fresh charge at the exhaust and at the same time increase the quantity of fresh mixture introduced.



Even the exhaust has undergone a major overhaul and has a new and wider timing and a redesigned profile to ensure the correct flow of gas outgoing and directed towards the muffler.




PISTON 63

The piston 63 bi-band calculated and optimized thanks to hours of tests in the test room. The piston has a profile designed to cope with the high temperatures developed in the chamber during operation, especially in the most severe conditions. Allowing the piston to assume the correct cylindrical shape, once the operating temperature has been reached, allows to obtain a more uniform sliding surface for the cast iron cylinder. Thanks to this new profile it has been possible to reduce the coupling play between cylinder and piston to ensure greater driving in reciprocating motion in the barrel and to reduce rotations around the pin axis, thus reducing the risk of seizure, a very dangerous phenomenon. and recurrent in high performance cast iron cylinders. Even the metallic rattle, audible at a minimum and typical of this vehicle category, has been significantly reduced. The double elastic band guarantees the correct sliding of the piston and, at the same time, a constant seal over time at the pressures developed in the chamber.




HEAD

The head has undergone a profound reinterpretation starting from the cooling fins, now curved and more sinuous, capable of exposing a greater amount of surface to the air and maximizing cooling. The finning of the head has also been inserted into the gap between the head and the cylinder to generate a significant air flow capable of further mitigating the operating temperature. The result is pleasing to the eye for its unique and original shape due to the accurate positioning of the fins, whose design is interrupted only when necessary, with respect to the fixing holes of the studs. The structure of the head itself has been profoundly revised by increasing the mass to obtain a record stiffness, combining lightness and maximum possible length of the cooling fins and exploiting all the space made available by the conveyor. The inside of the head is hemispherical and worked with numerical control machines. The placement of the candle is noticeably inclined, while remaining central. The kit includes two centering bushings to ensure perfect coupling between head and cylinder, separated only by an O-ring. This solution, imported directly from the world of competitions, guarantees maximum sealing and the greatest possible heat exchange, eliminating any type of gasket and therefore removing any barrier between head and cylinder.


3117676 63 mm
Urban / sport use
Power range 14/22
Processing level easy
Carburettor recommended Yes 24/24 phbh 30
Stroke 57
Compression ratio 1: 10,5
N segments 2
N transfer 6
Hemispherical head
Iw f 27 candle

Feedback

  • 14.12.2021   (BS)

    ottimo prodotto

  • 13.07.2020   (FI)

    I mounted the 166 in cast iron mk3 about a year ago, it went from God then my piston broke under the transfer and I decided to put this new 177 in cast iron, I'm running in, you have medium bass it is very well better than the 166 I hope who does the same to the highs! Cq satisfied with the first even if it lasted a short time, we hope this will pay me back completely.

  • 09.03.2020   (AO)

    arrived on schedule, parcel packed well

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The products presented on this site are compatible and adaptable to the specified models. In the case of original spare parts / accessories, it is specified in the description of the products that they are original spare parts.

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