Malossi Big Bore Cylinder kit for Aprilia Scarabeo 50cc Di-Tech. With CDI. 3112054
Malossi, whose expertise in balancing a vast experience with the latest technology, embraced this new challenge: to bring to the racetrack a fuel injected two stroke engine. With the new INJECTION TECH range of products a new chapter is written, an answer, the racing world was anticipating, to satisfy the growing number of Malossi Trophy Races for 70cc scooters. TECHNICAL FEATURES cylinder kits CAST IRON CYLINDER - Technology - Material: special self-lubricating, wear-resistant, highly refined cast iron alloys, obtained by Shell Moulding gravity die-casting. - Machining: on numerically controlled high precision machine tools. - Recalculated heat exchange surfaces. - Exhaust and transfer ports designed and tested for maximum thermodynamic performance. - Shape and surface texture dimensional checks. - Cylinder and piston selected for a 100% fit of 0.010-0.005 mm. - Checking of all the seals carried out.
ALUMINIUM CYLINDER - Technology - Cylinders obtained by gravity die-casting in permanent steel moulds. - Material: hardened and tempered high silicon content primary aluminium alloy. - Machining: on numerically controlled high precision machine tools. - Cylinder liner with silicon carbide metal-spray coating on a galvanic nickel matrix, cross-honed with passes with diamonds for very tight tolerances. - Heat exchange surfaces recalculated. - Exhaust and transfer ports designed and tested for maximum thermodynamic performance. - Shape and surface texture dimensional checks. - Cylinder and piston selected for a fit of 0.010-0.005 mm. - Checking of all the seals carried out.
PISTON - Material: special aluminium alloy with high silicon content and low thermal expansion. - Machining: on numerically controlled machine tools. - Lightened and strengthened. - Heat exchange surfaces increased.
PISTON RINGS - Rings in very strong modular cast iron with ground, wear-resistant, hard chrome metal-spray coating on the contact surface.