Which 2bbl Weber to rebuild?

aribert

Well-known member
I have the following Weber cores: 36/36 DFAV, 32/36 DGV5A, 32/36 DGAV (and also a 32DIR37 (both bores are 32 mm dia.)) that I bought as a lot off of eBay several years ago in order to rebuild one and to put on my Falcon. Are all of these Weber or are any of them the Holley/Weber - how does one tell the difference? Which one would be the best candidate for rebuild (discounting that some are elect choke while others are manual choke)? What is the funtional difference between the Holley/Weber and a Weber? Which one is easier to tune (I have some tuning experience with the tripple Weber sidedrafts on my Triumph but no tuning experience with the progressive 2bbl downflow carbs).

webersidebysidePV2.jpg


webersidebysideunderside.jpg


webersidebysidethrottleside.jpg




A couple of links to the 32DIR37 (note it is missing the choke as m and other than a solinoid, I do not see how the choke is activated). Also the body of the carb has 23 & 24 cast into it while the other three have 26 & 26 cast into them. I suspect that this is the venturi diameter but I have not tried to confirm that.

http://i290.photobucket.com/albums/ll27 ... opview.jpg
http://i290.photobucket.com/albums/ll27 ... erside.jpg

I need to order a rebuild kit so that I can work on the carb change over the winter - the snow will be falling here within a few weeks and once they salt the roads, this car is parked untill spring.
 
is the 36/36 progressive or synchronous? Either way I'd go with that one for max power. Otherwise, do one of the 32/36 as they are the most common and parts and advice will be plentiful. The one with the air cleaner base on it appears to be a holley-weber judging from the oval shaped air cleaner fitting. The other one is probably a straight weber.
 
The DFV series carbs (aka Holley/Weber) are essentially mirror images of the DGV series carbs, with the throttles pulling the opposite ways.

Figure out which one will go on the engine with the least amount of throttle linkage modding, and go from there.
 
I would suggest you go with the DFV. The linkage is closer to the firewall and you already have half of the Air Cleaner taken care of. A standard K&N filter for the VW will fit that existing Air Cleaner base. The primary for that carb is also nearly identical to the current 1100. All you need now is the adaptor to fit your log type.

Take a look at the link below. I made this post some years ago to show the linkage mod and header install but it also shows the DFV and the throttle arm I purchased from Peirce Manifolds. I only needed to extend part of the stock linkage by approx ¾â€￾ to make it work.

There is also quite a bit of discussion on this subject over the years along with the jet sizes that were the result of many hours of work by other forum members.

http://home.comcast.net/~tuckerjr3/head ... nstall.htm

Good luck, Ric.
 
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