How do I know what size Weber carb I have?

Weber model numbers are always stamped on the carburetor body. They always begin with a 2-digit number (or a pair of 2-digit numbers separated by a slash) followed by three or four letters. There may or may not be more numbers and/or letters after that.

What is an IDF carb?

Weber IDF are vertical/downdraught, twin bore, carburettors and where. introduced around 1965 as original equipment on Fiat 124 twincam. engines. IDF stands for ‘Invertire doppio’ – meaning Inverted + double – and. possibly FIAT or Ferrari for the remaining ‘F’

What does ida stand for on Weber carburetor?

The carburetor has a bore diameter and throttle plate size of 48 millimeters (about 1 15/16″), while the IDA suffix means it’s a high performance downdraft carburetor. There are also 40 & 46 IDA/3C’s. These are high performance 3-barrel downdrafts, available in 40 and 46 mm sizes.

Which Weber carburetor has the best fuel economy?

The 40 IDF is truly the mileage champ. 40 IDF carburetors are factory equipped with 28mm venturis that help provide a terrific combination of fuel economy and performance. The Weber IDF series will fit comfortably under the engine deck lid of VW bugs, buses, and square backs.

Will Weber 40 carburetors fit in a VW Bug?

The Weber IDF series will fit comfortably under the engine deck lid of VW bugs, buses, and square backs. Smaller 1600cc and 1776cc engines will benefit from the increased port velocity and enhanced engine torque produced by Weber 40 IDF carburetors.

Where are Weber carburetors made?

CB has a large selection of Original WEBER Carburetors (made in SPAIN) in a range of sizes to fit your desired application. With so many options choosing the right Weber carburetor kit can be a daunting task.

What are the factory sizes of the Weber 40 IDF?

WEBER 40 IDF Factory Sizes Single Carb Dual Carbs AIR CORRECTION 2.00 1.60 2.00 EMULSION TUBE F-11 MAIN JET 1.15 1.45 (d) 1.15 PUMP JET .50 .50 † .50