⛽ Weber 40 DCOE Side-Draft Carburettor
The Weber 40 DCOE is the most widely used performance carburettor in European motorsport history. A progressive twin-choke side-draft unit producing a distinctive intake roar, it was specified by Alfa Romeo, Ferrari, Lotus, BMW, and Ford for their performance road and race cars. The twin DCOE installed on the Alfa Giulia GTA and the Ferrari 308 GTB draw from the same Weber parts bin: emulsion tubes, venturis, choke tubes, and jets are interchangeable across applications.
Fuel System
Spécifications techniques
| Type | Twin-Choke Side-Draft Carburettor |
|---|---|
| Choke Diameter | 40 mm (nominal) |
| Venturi Sizes | 24–34 mm (application specific) |
| Jets | Interchangeable: main, correction, air, emulsion |
| Float Chamber | Single float, external access |
| Manufacturer | Weber Carburatori, Bologna, Italy / Magneti Marelli |
| Msrp | $320–$580 per carburettor (used) |