incl. VAT plus shipping costs
Pinasco's VTR cylinder series is based on a design of an old Eurocylinder layout with nine overcurrent channels, which was later also used by Angelo Zirri. Pinasco has continued this idea and, in addition to the use of thermally less critical aluminium as the cylinder material, has also provided for the optional use of a direct inlet system with membrane (RD350). The piston layout has also been significantly modernized.
The Pinasco is available as a kit with a diaphragm directly mounted on the cylinder and a suction nozzle (slave) or with a closure plate for the direct intake tract (master) only, without a diaphragm/suction nozzle.
The latter is then conventionally ventilated via the motor housing. With the option of diaphragm control, it is possible to realize a powerful motor without reworking the motor housing / inlet. The very open piston design is also helpful as it makes it obsolete to adapt the overcurrent channels for normal applications. Both versions are available for use with 57mm or 60mm stroke.
The quite moderate control angles at Polini level, combined with an exhaust width of 60% of the bore, offer a good torque range for a powerful engine suitable for everyday use.
With extended control angles and further revision as well as a corresponding exhaust system (e.g. BGM BigBox Sport), the Pinasco is suitable for power in the range of 20-27 hp.