CNC machined motor housing -Made In Germany- around the Simonini light aircraft cylinders in the Li family's Lambretta. The Simonini cylinders with 80 mm x 80 mm hole pattern fit, which are available with 70 mm and as Big Bore with 72,8 mm bore.
The specification of the killer case turns the engine concept into an over-touring engine. Even with a 28 mm or 30 mm carburettor and our bgm Big Box Sport, the 30 hp mark on the rear wheel is scratched or exceeded.
Simonini's Mini Evo cylinders are machined to fit under an original Lambretta cylinder hood. In the Killercase, the inlet sits directly above the crankcase and was made for a type RD350 membrane. By placing the intake system above the crankcase and thus the lower connecting rod bearing, the entire engine concept can be operated permanently and without problems at 1:50.
Apart from the engine housing, the cylinder, (due to) the crankshaft and the intake manifold, conventional Lambretta parts are used to build and complete the killer case. So all parts of the Li series can be used. So all Lambretta ignitions fit for dl/ GP cone, fan wheel housing, all drive components, gears and small parts.
The gearbox cover plate is included in the scope of delivery and is fastened with eight M8 screws. With the correct torque (22 Nm), Schnorr washers and Loctite, this is probably the safest solution for finally fastening the gearbox cover plate.
The killer case is constructed like an original case and all parts can be taken over from the conventional Lambretta engine. With the side hood installed, the Lambretta does not look like it has had a fresh cell treatment.
We offer the killer case in conjunction with the Big Bore cylinder (72,8 mm bore) and a crankshaft with a 64 mm stroke, giving you a displacement of 265 ccm.