Weber DCOE Carburettors

With a Grand Prix Racing heritage, the venerable DCOE is Weber's premier Carburetor, and still the standard by which all other carburetors are measured. It is unsurpassed for race use, yet its infinite tune ability by way of interchangeable calibrated parts allows it to be tailored to suit any engine and application.

Hardly enough can be said about the DCOE. Its features include: ball bearing throttle shafts, piston type accelerators pump circuits, a wide variety of throttle bore sizes.. and, of course, the excellence that is Weber

Weber 40 DCOE 151 Carburettor 

The smaller brother to the 45, the 40 DCOE is suited to smaller capacity engines where the 45 is considered too large. Used either in single or multiple carburettor applications, they are a popular choice for smaller 4 and 6 cylinder engines, particularly for road use.

Weber 45 DCOE 152G Carburettor 

The 45 DCOE 152G Weber carburettor we supply has four progression holes, which has great advantages over the commonly supplied 152 Carburettor which only has three progression holes. We have found, along with many reputable Dyno operators, that the major benefit is a much smoother transition from the idle to main circuit. This is the most difficult part to get right when tuning Weber carburettors. An incorrect progression stage will typically display as a "flat" spot on acceleration, and can be time consuming to rectify, or even get close.

The 152G was initially developed for multi-valve/cam engines, although we have found them to be very beneficial in engines such as the Holden 202, Ford 2L Pinto, Datsun 1600 and Hemi 265.

Weber 48 DCO SP Carburettor

The DCO series carburettor is designed for all out performance with excellent tunability. There is no cold start mechanism (as fitted to DCOE carburettors) therefore minimising moving parts and the chance of any fuel accidently leaking into the carburettor. The 48 DCO has a 42mm venturi fitted from the factory, and has a range from 36mm-44mm.

Weber 50 DCO SPW Carburettor

The 50 DCO SPW has a full spindle passing through the body so a linkage can be attached to either side of the carburettor. The image shown does not show the full spindle.

Factory Calibrations are;

46mm chokes, 5.0 aux venturi, F7 emulsion tube, 180 main jet, 160 air corrector,  65F8 idle jet, 45 pump jet, 100 pump spill, 250 needle valve

The air horns are 45mm in length

Weber 55 DCO SPW Carburettor

The 55 DCO SPW has a full spindle passing through the body so a linkage can be attached to either side of the carburettor. The image shown does not show the full spindle.

Factory Calibrations are;

48mm chokes, 5.0 aux venturi, F7 emulsion tube, 180 main jet, 160 air corrector,  65F8 idle jet, 45 pump jet, 100 pump spill, 250 needle valve

The air horns are 45mm in length