Cylinder kit -QUATTRINI M210, Ø68mm, H=58mm, 210 cc- Lambretta LI 125-150, LIS 125-150, SX 150, DL 125-150, GP 125-150
Description
Cylinder kit with 210cc from Max Quattrini for the small engine block of Lambretta 125-150cc LI/SX/GP/DL models..The Quattrini cylinder has as a special feature a diaphragm inlet, which positions the carburetor on the left side of the vehicle. Compared to the original position, the carburetor is strongly rotated forward in the direction of travel. A connection to the original air filter box is therefore difficult to realize.
In order to be able to use as large a displacement as possible, the cylinder has no cylinder base that dips into the engine block. This technique allows the use of a larger piston than usual. With Ø68mm diameter this results in a displacement of 210ccm (60mm stroke =218ccm) with the stock stroke of 58mm. The crankshaft developed by Quattrini to match the kit has a longer connecting rod (116mm instead of 107mm) and a balance factor adapted to the low piston weight of the M210. The long connecting rod is intended to improve the smoothness and ensures that the piston works higher positioned to not run out of the cylinder and tilt.
- Bore: Ø68mm
- Stroke: 58mm
- Connecting rod length: 116mm
- Intake system: diaphragm (carburetor in driving direction left)
- Connection width carburetor: Ø35mm - suitable for e.g. Keihin PWK28, Dell'Orto PHBH/VHST, Mikuni TMX27/30
- Piston: flat top (pin= Ø16mm, compression height=30mm)
- Control angle: exhaust= 180°, overflow= 123°
- Exhaust flange: Quattrini (similar to TS1)
- Exhaust flange perforation: 65mm (2x M8)
- Exhaust flange connection: oval with flattened lower edge, 42mm wide at the widest point
The cylinder layout is, quattrinitypically, quite conventional and features large scavenging surfaces with a large rectangular exhaust window (65%). The diaphragm inlet also functions as a direct inlet to the overflow ports, and the piston top is flat. The overflow inlets at the cylinder base are designed to fit the stock engine block. However, they have enough meat to significantly enlarge the overflow ports on welded engine cases.
The flange is conventionally fastened with two 65mm hole studs. The spigot of the BGM Pro Clubman exhaust for TS1 fits, but the distance between the studs is larger and an adjustment of the exhaust flange is inevitable.
With head angles of 123°/180°, the Quattrini offers optimal conditions for a powerful sport tourer with Clubman exhaust, but also already allows the use of resonance exhaust systems.
IMPORTANT TO NOTE: The holes for the cylinder stud bolts are sometimes too narrow as delivered. Since adjustments may be necessary in the form of repositioning the holes for the studs.SLUK Blog:
Max Quattrini's new Lambretta smallblock 210 kit | NEWS
Smallblock Quattrini 210 Lambretta on the road - REVIEW
incl. VAT plus shipping costs
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