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We are still fulfilling and shipping previously submitted and/or delayed order requests (as product availability allows) UNTIL NOVEMBER 15th 2022.

But after November 15th, all still pending backordered unshipped items will be automatically CANCELLED **(except for any special ordered drop-shipped or made/machined-to-order items).

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We sincerely appreciate your patience, understanding during this period of restructuring and/or closing. And a huge thank you to all of you whose support and loyalty we have been the beneficiary of over the 23 years that we have worked diligently to support the information and parts needs of the aircooled VW community!


  VW Parts Catalog > Carbs & Fuel System >

Dual Weber IDF Carb Kit, Dual Port Engines (but NOT GHIA), Redline
Dual Weber IDF Carb Kit, Dual Port Engines (but NOT GHIA), Redline
Picture is a "generic" picture showing 40 IDFs and a Dual Port Type 1 Kit. When you select the kit you want you WILL receive the proper linkage, carbs, and intakes.
  
ACN only sells GENUINE Weber carburetors that are made in Spain, not Chinese copies! Our Dual IDF Weber Carb Kits come with everything you need to install them (except for 40 IDF size which does not include velocity stacks). While most VW Parts stores sell one line of carb kits, ACN sells a lot of them! The big advantage you have from buying from ACN is our decades of carb experience, which you get with the "Carb Setup Option" to minimize your setup time and maximize drive time instead of wrench time! Race proven Genuine Redline Weber. These kits fit most dual port upright Volkswagen engines, including Beetle, Superbeetle, and THING, even Dual Port busses up to 1971! This Redline version of the DUAL IDFs DOES NOT FIT KARMANN GHIAS! If you want to fit the Ghia, you must get the CB kit, and tell us in the order notes field during checkout that the kit is for a Karmann Ghia, so we can make appropriate changes to the kit so it fits!

Carb Sizing. Here are our Weber Size recommendations. If you have a bus or vanagon, get dual 40 IDFs, don't even consider 44s!

If you have a Type 1, dual 40 IDFs are fine for most applications under 6k RPM. You do not need to even THINK about going to 44mm IDFs until you are over 2000cc AND over 6k RPM, it's simply not necessary! Normally dual 44s are needed when you begin to go over ~130hp. That's a REAL 130hp, not bench-racing 130hp. If you have an Engle 110 cam, you don't need 44s either since the engine isn't going to rev!

Another example, if you have a 2275cc engine with big-valve heads and no portwork, 40s are all you need!

If you have any carb sizing questions, feel free to contact us for advice! That's what we are here for!

The pieces of info that are helpful for us to have when performing a carb setup service are:

-Vehicle Year/Type/Model
-Engine displacement (size)
-Engine Compression Ratio
-Heads Type/Size
-Cam Brand/Model
-Exhaust Type/Size
-Distributor Type/Model
-Driving Elevation Range

Please include as much of the above information in your ORDER NOTES/MESSAGES during checkout.
In the absence of that info, we assume a stock or mostly stock engine/exhaust/distributor combo, and we base your driving elevation off of your submitted order delivery address.


WARNING: The Redline kit for upright engines now interferes with the stock fan shroud. It will clear most 36hp aftermarket shrouds, but DOES cause problems with the stock German shrouds! Because of this issue, we recommend the CB kit which does clear all shrouds.
Price: $899.95


: REDLINE-DUAL-IDF

Select Engine Type and Options

Engine Type*:
Choose Carburetor Size


Select Carburetor Setup Option



QTY:
Overview More Info
 
This is one of the finest dual weber carburetor kits available for your Volkswagen. Steel Hex Crossbar and Heim Ball Ends minimize flex, and last longer than the same parts made of aluminum. This Redline version of the DUAL IDFs DOES NOT FIT KARMANN GHIAS! If you want to fit the Ghia, you must get the CB kit, and tell us in the order notes field during checkout that the kit is for a Karmann Ghia, so we can make appropriate changes to the kit so it fits!
Item Features
We have a LOT of experience setting up dual webers (25+ years!), so we offer and strongly recommend our Carb Setup Service to you when you buy your carburetors from Aircooled.Net! Frankly, if you try to bolt up your dual weber kit as supplied by Weber, you will have problems more often than not!

So choosing the Carb Setup Service is completely optional and up to you, but STRONGLY RECOMMENDED. It's actually a bit of a pain, and time consuming to do properly, which is why ACN is the only company that offers this service on Weber purchases! The Carb Setup Service includes fixing known and unknown problems and Weber assembly errors, clean, set floats, trim gaskets, etc. Then we reassemble with the correct jets and emulsion tubes for your engine and elevation! Finish it off with a final bench adjustment so that YOUR setup time and headaches are minimized! Carb Setup Service INCLUDES JET CHANGES (Free jets!), the expense of the proper jets can exceed what we charge for the setup, so it's a great deal for you!

It doesn't matter WHICH dual weber kit you buy from us, ICTs, IDF, IDAs, we will give them the same attention to your carbs as if they were ours about to go on our own engine! When you select this option, Jet changes are included, but venturi costs are additional FOR THE PARTS ONLY (you must purchase the venturis as a separate item and request "venturi swap" in your ORDER NOTES during checkout. With the cost of jets and especially emulsion tubes, that alone makes it worth it!

We have the carburetor expertise to select your emulsion tubes, idle jets, main jets, and air jets, regardless of the elevation you will be driving at, all you will have to do is assemble, adjust and GO! Obviously you must have your fuel pressure set to 3-3.5psi, but if the engine is in good mechanical shape your bench time will turn into driving time!

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