The technically refined DELL'ORTO VHS flat slide carburettors are considerably better than the straightforward drum carburettors and therefore improve the performance and effectiveness of the engine. The deciding factor in this case is the (double) slide design: On a flat, square design, the projecting edges of the drum carburettor are omitted. Due to the straight tear-off edge of the flat slide it is possible to achieve a smooth, streamlined air passage and therefore a superior cylinder fill. With an outlet of up to 39.5mm they are not only suitable for use on high performance Lambretta scooters, largeframe engines but also for high end smallframe set-ups.

The VHSH 30 CS is also one of the absolute high performance carburettors. It was developed by DELL‘ORTO in cooperation with leading manufacturers of cart engines and has been used since then as a standard carburettor in the ICC formula. It convinces thanks to a smooth running intake area, a screw on carburettor cap, a separate central screw mounting for rapid main jet change, an integrated petrol filter and a spring mounted float needle valve.

Conclusion: Flat slides are clearly superior to drum carburettors in the lower and middle rev range in particular!

OEM numbers (for comparisons): 201.0153 (POLINI) 09303 (DELLORTO)