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Weber's DGV series carburetors are a 2-barrel, progressive downdraft carburetor with versatility and wide adaptability. They are cost efficient with a low initial cost, increased fuel economy and improved performance. Weber gave them excellent drivability while being easy to not only install, but to maintain as well. The DGV series includes features like a diaphragm type accelerator pump circuits and a power valve circuit that facilitates low vacuum running conditions perfect for lengthy high output situations. If you are after a better throttle response then the synchronous-opening model 38 DGAS can be used as a high performance alternative for most DGV applications and only require an adapter and possibly slight modification for clearance. Additionally, the DGV series also includes ICU (integral idle cut-off unit) carburetors. These carburetors solve the diesel or "run-on" issues of those engines that continue to run after they are turned off by shutting off the fuel supply to the idle circuit when the engine is switched off. The DGEV, DGAV, DGES and DGAS are all part of the DGV family. Two of the DGAV series casting numbers for these are 22680051B and 22680033B. Casting number 18930020 is a DGES. Some of the DGEV casting numbers are 22680033B, 18930032, 22680172, 22680160 and 18930020.
Weber's DFV Series carburetors are identical to the DGV series except that the primary and secondary barrel positions are reversed in the body with the throttle lever rotating in a clockwise motion instead of counterclockwise like the DGV. The DFV series gives you versatility, drivability and efficiency, as well as better fuel economy and performance. The DFV Series is perfect for your long duration high output situations by offering a power valve circuit that makes low vacuum running conditions easier. Casting number 22680070 is part of the DFEV series.
A favorite of the Porsches, the IDF series Weber carburetors are a synchronous 2-barrel downdraft carburetor that is ideal for most opposed cylinder engines or engines that have near vertical intake ports. The IDF series offers full calibration capabilities, central float chambers, and a compact alloy body that comes in an array of sizes. With features like diaphragm type accelerator pump circuits, ball bearing throttle shafts and a relatively low cost for its performance gains, the IDF carburetors are tough to beat. Now Weber redline offers the IDF XE series carburetors. This XE upgrade includes extended emulsion tube holders and adjustable spring-loaded accelerator pump actuating rods that make them great for use in extreme conditions or in severe environments. You can upgrade your IDF to XE specifications with the XES kits. A couple of the IDF series casting numbers are 18950138, 19003021, 15290035, 15290027, and 18990030.
Weber's premier carburetor is their DCOE series. With its ability to be tune by way of interchangeable calibrated parts it can be customized to suit almost any application or engine. Including features such as ball bearing throttle shafts, piston type accelerator pump circuits, and a variety of throttle bore sizes. The respected DCOE series carburetor by Weber is the standard by which all other carburetors are measured against. With its Grand Prix Racing heritage it is unparalleled for all full-race use. Several of the DCOE casting numbers are 19550174, 22680005, and 19600060.