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. Specs for this carb are as follows:
F2 E-tube
120 Main
175 Air Corrector
30mm Choke
4.5 Aux venturi
175 N/S
50 Bypass
40 Pump Jet
45 F9 Idle
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.
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. Specs for this carb are as follows:
F2 E-tube
120 Main
175 Air Corrector
30mm Choke
4.5 Aux venturi
175 N/S
50 Bypass
40 Pump Jet
45 F9 Idle
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.
I was wondering which Weber Kit you would recommend for my Bugeye. It has a 1275 with a performance cam ( I don't know the specifics since it was installed before I bought the car) tube header, and it looks like the vacuum advance on the distributor was removed. I'm thinking the 45 might be the right choice.
Answer:
We would suggest that the for a street 1275 the 40 DCOE would be our first choice but we also suggest that from a bolt-on performance standpoint you should consider the DGV set-up: https://www.spridgetmania.com/part/P4-004/Classic-Austin-Mini-Dgv-Weber-Carb-Kit-Includes-Manifold-Carb--Air-Cleaner From my personal experience, the DCOE is the best if you are willing and able to 'tune' it while the DGV is a great bolt-on Weber with a soft touch for fuel economy with the same top-end performance of a DCOE.
Spridget Mania Tech Team
The Spridget Parts and Accessories Experts
Question:
I would like to know if your intake manifold is 40mm diameter on the carburetor side?
Answer:
I'm pretty sure they measure it on the manifold side.
Spridget Mania Tech Team
The Spridget Parts and Accessories Experts
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 highly modified street/race 1275cc could use as much as 38mm chokes; definitely 45DCOE range.
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 highly modified street/race 1275cc could use as much as 38mm chokes; definitely 45DCOE range.
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.
WEBER KIT 45 DCOE (does not include air filter)WEBER KIT 45 DCOE (does not include air filter)
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.
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.
Specs for this 40 DCOE are as follows:
F2 E-tube
120 Main
175 Air Corrector
30mm Choke
4.5 Aux venturi
175 N/S
50 Bypass
40 Pump Jet
45 F9 Idle
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.
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.
Specs for this 40 DCOE are as follows:
F2 E-tube
120 Main
175 Air Corrector
30mm Choke
4.5 Aux venturi
175 N/S
50 Bypass
40 Pump Jet
45 F9 Idle
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.
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. Specs for this carb are as follows:
F2 E-tube
120 Main
175 Air Corrector
30mm Choke
4.5 Aux venturi
175 N/S
50 Bypass
40 Pump Jet
45 F9 Idle
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.
So you have a nifty Weber DCOE or S&K Racing sidedraft carb setup for your vehicle. You're ready to chew gum and kick butt, and you've run out of gum. You bolted on the carb in place of your SUs or Zenith-Stromberg and voila! You have worse gas mileage, and the power gain is slight enough to be psychological.
Last time we chose a manifold based on flow volumes, and a carbie based on personal choice, but which combination is best on this engine? With the engine finished, it is time to look at a variety of carburettors, inlet manifolds and exhaust extractors, to fnd the most suitable combination. There are a lot of fgures, but they are necessary, so bear with me.
One of the common problems where sidedraft carbs are involved is the choice of carb size in the first place and 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 airflow it needs without going over the top.
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