Offy tripple 1 v/s popular 2bl

kevinl1058":eh3v6jht said:
Is anyone running them synched or mainly in a progressive set up. It would be a whole new jetting mapping but if I can get the response of wide open right off the pedal it may be worth playing around with?

most 3x1 barrel setups are progressive. but if you built an engine that could handle it, sure you can make them synch up as one and have it run nicely.
 
Running three 32/26 would allow you to make them as progressive as you wanted, assuming you could effectively deal with the linkage.

Conceptually, you could have it run/idle off of one barrel of the center 32/36 (so initially, one barrel), then engage one barrel of each outer carb (now, three barrels), then the 2nd barrel of the center carb (now, 4 barrels) and then (finally) all 6 barrels of the three 32/36.

At least - on paper.
 
Its certainly possible. The Holley Weber/Weber DG series is the most versatile carb ever made, and now, one of the most documented.

On a Holley 2300/4150 series, you have any power valve from 2.5 to 10.5, plus dual stages and nothing but one or two types of well tube.

With the Weber DG series,and Holley Weber, they officially have only 3.6 or Lima 8.5 power valve, yet the whole carb is tunable with something like 60 emulsion tubes not including the 5200/6500 one, any jets, any correctors and a brace of three accelerator pump curves and squirter jets from 20, 21, 23 thou. Sometimes you can even pick up a no name 9.0 power valve that fits. The Power Valve channel restrictions (PVCR) vary from 25 thou to 65 thou, and there's a heap of very smart ported vaccum mods to trick the power valve into being operated off the idle circuit to stop the soft tip in as the mechanical secondary can be rather slow to engergize. Then there is the no two alike nature, with the now you see it, now you don't secondary idle ciruit and dobuel booster venturi, and the myriads of types of casting changes.

I learned that to duplicate the Holley Weber calibration in a Holley 7448 350 cfm carb, it needs 16 to 20 thou PCVR's and a 2.5 Power Valve to run on a 2000 or 2300 Pinto engine, so its not a carb with a hugely rich power valve circuit like all 2-bbl Holley 2300 series carbs are. The 4-bbls power valve steps up jetting about 30 to 40%, or 6 to 8 jet call sizes, but the 2-bbls richen up about 60%, or 11 call sizes. The Weber DG and Holley Weber, it varies from 20% to probably 60%, depending on the carb.


Only down side is its kind of tall compared to a Holley 2-bbl with the air horn removal.

Dak Dak owners have been using them with some weird log adapter set ups for donkey's years. Nah, make that Jack A$$es years...

Here is just some of the Volkswagen 1-bbl Solex adapters for the yet another brace of 5200/5210/5220/6520 2-BBL carbs. Its designed for their log intake single porters, but basically using an adapter like this, your able to hook up to an early Tripower intake, and provide three duces with mechanical secondary's. You find them from old Redline cat no items.

Some are offset, some are really like our 2-bbl to 1-bbl Clifford, Classic Inlines or Stove bolt or Technico items



http://www.thesamba.com/vw/forum/viewtopic.php?t=439577

The more you look, the more you find

This with a Datsun 1200 cc air cleaner

http://images.thesamba.com/vw/gallery/pix/287654.jpg
http://www.thesamba.com/vw/forum/viewtopic.php?t=554902

Then there are the Volkswagen Audi based engines uses in AMC and Mopar's before the 2.2 K car engine.

http://www.3geez.com/forum/carburetor-tech/63189-holley-5200-maybe-another-model.html

AMC – 5210 on the Audi powered ’77 Gremlin

An AMC 8549 1439 tagged item has

Primary Main Jet: 183
Secondary Main Jet: 243
Primary Air Corrector: 125
Secondary Air Corrector: 180
Primary Emulsion Tube: 75
Secondary Emulsion Tube: 74

Then you might find, say R9877 1672.

2381473167_802a05470c.jpg

2381472795_06c82bd851.jpg

This looks very much like the rare 2V carb and adaptor Ford might have used on the 1980 Fox cars, but its actually a VW Beetle Solex 1-bbl verses Holley Weber 5200 2-bbl aftermarket kit.

Here is a Missing in Action Holley Weber 52xx to 65xx List and Makers PN from 1973 until Ford axed the carb in 1983 for the single barrel.

There is an on line list of the 19 (nineteen) Holley Weber carbs in the 445 carb list below,
http://holdenpaedia.oldholden.com/images/HolleyCarb.html

These are appended with the Dave Emanual even more extensive list of 8 (eight) other Holley Webers in Super Tuning and Modifying Holley Carburetors.


MissinginActionHolleyWeber52xxto65xxListandMakersPN.jpg



There are seven extras just from and afternoon of FEP internet trawling.

Every Holley Weber on the net seams to have a different list number and part number, which is probably as it should be, since the published Holley lists are for carb kits where as real Holley Webers in service are factory list carbs with a automakers unique production part number
 
There is also the much smaller 22 mm venturi Holley 180 cfm 2-bbl carb, sold as the Motorcraft 5740/6740, or Carter Weber 740 series carb. It's just a Weber 32 DFT made under license for US Ford Escorts from 1981 till about 1988.


One of our members here has three of these on his log headed 250 engine.

viewtopic.php?t=63791#p487947


See http://www.langdonsstovebolt.com/tech/p ... rburation/
http://www.langdonsstovebolt.com/store/ ... id=1222026
http://www.langdonsstovebolt.com/store/ ... id=1222050

http://pages.suddenlink.net/churchill_t ... Webers.pdf
 
Ex,

Thanks very much.

I've often wondered about a 2 bbl smaller than a 32/36.

This sounds just about ideal.

Three of these little guys all running primarily off of one bbl sounds just about optimal.
 
Soldmy66":3pdqbc0b said:
Ex,

Thanks very much.

I've often wondered about a 2 bbl smaller than a 32/36.

This sounds just about ideal.

Three of these little guys all running primarily off of one bbl sounds just about optimal.


The confusion exists because the info on it is messed up. Its a Motorcraft carb, a Weber designed, but made in the USA carb for Motorcraft by Carter. It's stamped as a Carter Weber for Motorcaft, not a Holley Weber. It became a Carter Weber in 1983 model year, but before that it was made by Holley.

Problem is Holley's 180cfm carb is not cataloged as the 5740/6740 or "740" series carb, that's not its list number.

The 180 cfm carb is wrongly cataloged as a 5200 series 2-bbl carb


In fact, the 230/255/280 2-bbl are 5200/5210/5220/6500/6510/6520 series carburetors, and it is totally scrambled with the Holley part numbers and list numbers. On some literature the R 6536/List 6536 carb, the basic 1971 to 1972 Pinto 2000 carb, is listed as a 180/230 cfm carb.

They do all sorts of cracked up stuff to the cfm rating of it and its siblings due to changes to the basic carb.

To confuse it more, the 2210 Bug Spray is a 200 or 300 cfm Holley 2-bbl based on the last Ford V8 flat-head/side valve and Y block carbs

There is no 180 cfm 5200/5210/5220/6500/6510/6520 series carburetor.
 
Back
Top