has anyone done Dual 32/36 progressives??

[sharkskinman]

I have two of them I'm wondering if someone has a setup of them dual on a T1 upright
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74 Mexi Swamp Thing. 70 square volksrod (Swamp Rat)..65 C10

[Lo Cash John]

Back when CB Performance was known as Claude's Buggies, they sold a dual progressive kit. I think those were slightly smaller carbs though. Anyway, that stuff pops up in the classifieds every now and then.

Search the gallery and you may find pics.
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[Erik G]

interesting, I had thought about using dual 38/38 "outlaw" DGES but never had the motor to support it. I figured the linkage would be an absolute pain
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[vwracerdave]

Waste of time. As pointed out CB made a dual progressive kit many years ago and they didn't work out very well. There just isn't any advantage over running dual IDF's.
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[BFB]

i asked about the same thing 6 months ago, got a couple responses about how it sucked and then mod closed the thread so no one else could reply. but before he closed it he posted an almost irrelevant link to another post a guy had who was building a dual progressive set up but it was way old and either he never finished the build or just didnt post results.
so having said that dont expect much OP, you'll most likely hear how bad the set up sucked from people who never ran it.

build it and let us know how it works!

[oprn]

Why not give it a go?

There are two things that spring to mind that it could solve. First off is it could solve the issue of poor vacuum signal for the stock vacuum pot on the distributor. The second is that it could give a much more linear throttle response than conventional dual Webers do.

It may not give you quite as much high end HP as conventional dual Webers but not everyone drives flat out 100% of the time.

[earthquake]

What about duel Bugsprays?

eQ
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74 CLASS 11 LOOK-A-LIKE
69 DUNE BUGGY
79 INTERNATIONAL SCOUT II
05 SCION XB SERIES RELEASE 2[#437]
95 Chevy C3500 dually
98 Ford E150
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[Alstrup]

Hello.
The dual progressive set up can work well,,,,,, IF THEY ARE PROPERLY TUNED, and IF THEY ARE 100% IN SYNC! The latter is a larger problem than it sounds to be, because most linkage systems are not 100% equal all the way through the swipe. That means that especially in the area where you begin to pull from the second barrel you soon run into the fact that the engine will pull on one side but not the other.
Rewaco did some trikes with that set up years ago, and they were fine as long as they were new. As soon as the engines got a few miles under their belt and the linkage was broken in, and the carbs maybe needed just a little bit of tune up the problems began. I don´t know how many of these (awfull) trikes are in this country and northern Germany, but I have personally converted 5 of these to dual 36 IDF´s or Kadrons instead.

Bottom line is, the dual progressive set up is not recommendable.

[oprn]

[H2OSB]

[sled]

[oprn]

Right! That is the book and I recalled it wrong but I'm sure there was mention of it and pictures too. But maybe it was a different book.

[modok]

The manifold volume is not large enough to benefit from a progressive carburetor.
As far as the sizing and orientation of the carburetor is reasonable.
Cb made a kit.
Almost noboy running them, although the question gets asked about twice per year. Always the same answer, nothing new this year, try next year

[oprn]

[modok]

[oprn]

It only took me two years to get the solex/zenith that came on my Rabbit it work properly and it did work pretty well but by then the throttle shaft bushings were getting sloppy and the idle sent south.

That said progressives were the only way to go on American iron for many decades so they do work.

[modok]

when installed correctly, on a pinto
You know the reason they have so many different carburetors.....they aren't one size fits all.

[vwracerdave]

[oprn]

[modok]

Float bowl forward,
Throttle blade opens in a direction so it "points" towards downstream as it's opening.

32/36 DGEV is primarily for longitudinal straight four

38 DGAS is for longitudinal v6

There is a different model of weber made for transverse straight fours. It has the float bowl theother way. Last time we discussed this i added a link to one for sale. Repeat, repeat, repeat.

I'm as INTERESTED as anybody, but.....don't have the time and motivation to r&d every possibility.
If a guy tries every kind of progressive carburtetor on every kind of manifold for it, will some work better than others?......OH YES, but, evidently nobody is INTERESTED in doing that.
Adopt a carburetor! if you don't, maybe nobody will.