The long wait was worth it: POLINI MOTORI presents the 130cc in a brand new look. The classic amongst tuning cylinders for larger capacity smallframes has had a sporting make over and now struts it stuff in aluminum. The new POLINI cylinder head air flow is perfected through 4 additional cooling ribs. This allows increased air flow, guaranteeing optimal cooling.
Not only the new POLINI manifold (2-/3-holes for 24-28 mm disc valve) punches things up, there's the astonishing SERIE PRO manifold for 28-30 DELL'ORTO/MIKUNO/KOSO carburettor (part no. 22159161 on MALOSSI reed valve basis or Art. 22159430 on POLINI reed valve basis) which gets an orderly portion of power out of this kit.
Conclusion:: The EVOLUTION Cylinder is a powerful alternative to Parmakit and other similar kits, which, accoriding t periphal equipment has extreme potential.
Aluninum/ 57 mm bore/ 6 transfers/ 130cc
Aluminum cylinder, nicasil race, 51 mm stroke, 6 phat transfers, coated piston with 2x 1.5 mm piston rings (chromed S10), perfectly adjusted compression degree, super timing, new POLINI cylinder head delivered including gasket set. Motor periphery should match performance increase and jets should be modified. Fits all Vespa PV/ET3/PK/XL/XL2 models, except PK automatic. The crankcase should be modified to match the larger cylinder transfers.
SIP-TIP: get absolute performance out of your EVOLUTION kit with a race exhaust VSP Race or Franz, specially modified lip shaft on disc valve basis and CDI ignition such as VESPATRONIC or PARMAKIT.