The venerable DCOE is the Weber's premier Carburetor - which is still the standard by which all other carburetors are measured. It is unsurpassed for full-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.

Just the name "Weber" screams performance; and a Weber on a Mini has always been considered the ultimate! The side draft Weber range used is the "DCOE" series. One of the common problems with side-draft carbs is the choice of the carb size in the first place and the choke size in the second. The trick with carb sizing and choke selection is basically one of choosing a size which provides the engine with the air flow it needs without overwhelming it. Although carb selection should really be done after you know the flow characteristics of your cylinder head, we can provide the following guidelines: if the choke size required for your engine is 35mm or less you should be using a 40DCOE, for all choke sizes of 36mm or larger a 45DCOE should be used. NOTE: a 40DCOE with 32mm chokes will flow more air than a 45DCOE with the 32mm chokes! A 948cc with a modified head, semi-race camshaft and LCB exhaust typically uses a choke size of 33mm, a 1098cc with the same set-up uses 34mm chokes, and even a stock 1275cc only needs 35mm chokes; all of these engines should use a 40DCOE. A full race/street 1098cc could use chokes between 32mm and 36mm chokes making it borderline 40/45DCOE. A hoghly modified street/race 1275cc could use as much as 38mm chokes; definitely 45DCOE range.

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Just the name "Weber" says performance; and a Weber on a Mini has always been considered the ultimate! The side draft Weber range used is the "DCOE" series and the 45DCOE is the most sought after.
This very famous high performance carburettor is available as a bolt on kit for the A-Series. Includes 45DCOE carb (19600.060), linkage and 3.5" manifold. One of the common problems with side-draft carbs is the choice of the carb size in the first place and the choke size in the second. The trick with carb sizing and choke selection is basically one of choosing a size which provides the engine with the air flow it needs without overwhelming it. Although carb selection should really be done after you know the flow characteristics of your cylinder head, we can provide the following guidelines: if the choke size required for your engine is 35mm or less you should be using a 40DCOE, for all choke sizes of 36mm or larger a 45DCOE should be used. NOTE: a 40DCOE with 32mm chokes will flow more air than a 45DCOE with the 32mm chokes! A 948cc with a modified head, semi-race camshaft and LCB exhaust typically uses a choke size of 33mm, a 1098cc with the same set-up uses 34mm chokes, and even a stock 1275cc only needs 35mm chokes; all of these engines should use a 40DCOE. A full race/street 1098cc could use chokes between 32mm and 36mm chokes making it borderline 40/45DCOE. A hoghly modified street/race 1275cc could use as much as 38mm chokes; definitely 45DCOE range.

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When maximum power is the only consideration, you can't beat a Weber MINI carburetor! Carbs are complete as shown, with chokes and jets to get you in the ball park, and ram pipes. Just the name "Weber" says performance; and a Weber on a Mini has always been considered the ultimate! The side draft Weber range used is the "DCOE" series. One of the common problems with side-draft carbs is the choice of the carb size in the first place and the choke size in the second. The trick with carb sizing and choke selection is basically one of choosing a size which provides the engine with the air flow it needs without overwhelming it. Although carb selection should really be done after you know the flow characteristics of your cylinder head, we can provide the following guidelines: if the choke size required for your engine is 35mm or less you should be using a 40DCOE, for all choke sizes of 36mm or larger a 45DCOE should be used. NOTE: a 40DCOE with 32mm chokes will flow more air than a 45DCOE with the 32mm chokes! A 948cc with a modified head, semi-race camshaft and LCB exhaust typically uses a choke size of 33mm, a 1098cc with the same set-up uses 34mm chokes, and even a stock 1275cc only needs 35mm chokes; all of these engines should use a 40DCOE. A full race/street 1098cc could use chokes between 32mm and 36mm chokes making it borderline 40/45DCOE. A hoghly modified street/race 1275cc could use as much as 38mm chokes; definitely 45DCOE range.

Have a Question or Comment of your own? Click here!

The name "Weber" says performance; and a Weber on a Mini has always been considered the ultimate! The side draft Weber range used is the "DCOE" series 40DCOE.
This very famous high performance carburettor is available as a bolt on kit for the A-Series. Includes 40DCOE carb (19550.174), linkage & 3.5" manifold.
One of the common problems with side-draft carbs is the choice of the carb size in the first place and the choke size in the second. The trick with carb sizing and choke selection is basically one of choosing a size which provides the engine with the air flow it needs without overwhelming it. Although carb selection should really be done after you know the flow characteristics of your cylinder head, we can provide the following guidelines: if the choke size required for your engine is 35mm or less you should be using a 40DCOE, for all choke sizes of 36mm or larger a 45DCOE should be used. NOTE: a 40DCOE with 32mm chokes will flow more air than a 45DCOE with the 32mm chokes! A 948cc with a modified head, semi-race camshaft and LCB exhaust typically uses a choke size of 33mm, a 1098cc with the same set-up uses 34mm chokes, and even a stock 1275cc only needs 35mm chokes; all of these engines should use a 40DCOE. A full race/street 1098cc could use chokes between 32mm and 36mm chokes making it borderline 40/45DCOE. A highly modified street/race 1275cc could use as much as 38mm chokes; definitely 45DCOE range.