Racing cylinder VMC 144cc ET7-60, Ø60x51, aluminium, booster outlet, Vespa Smallframe - die cast head side spark plug - 2 piston rings

Description

7-port aluminum cylinder, shell molding technology, Barrel with Nikasil treatment

Bore diameter 60mm Stroke 51mm Displacement 144cc, EXHAUST LIGHT WITH BOOSTERS

Phases Main transfers 128° Exhaust 188°, distance between exhaust studs 60mm, diameter 32mm oval exhaust outlet

The exhaust that with a slight filing can be brought to 36mm to adapt to our Evo SeiDue and Kifly 62 mufflers

Piston with 2 Rik steel rings complete with pin and stops.

Head in die-cast aluminum with SIDE spark plug with 4 additional fixing screws.

Squish 1.1mm ± 0.1mm. M7 stud nuts tightening: 11÷12 Nm, M6 screws tightening 10÷11 Nm

Complete with nuts and bolts and paper cylinder gaskets of various thicknesses.

It is a cylinder suitable for extreme processing.

Mounted with a VMC Evo 62 it requires a close change and with more generous expansion mufflers such as the VMC Kifly 62 plus reaching powers in the order of 30hp

Mounted with the Vmc Siluro Sport, the cylinder transforms into a fast touring engine with generous torque right from low revs and with excellent extension.



Warning: To be mounted on Piaggio crankcase it is necessary to eliminate the crescent on the crankcase base and bore the cylinder mouth on the crankcase with a diameter of 64mm for a depth of about 8mm to let the cylinder liner enter the crankcase.

THIS OPERATION CAN BE CARRIED OUT WITH A MANUAL DRILL USING THE STEEL GUIDE SUPPLIED WITH THE KIT, SCREWING IT TO THE CYLINDER STUD HOLES.