I wanted to throw out my minor problem and see if I could get any replies.

I bought the 2bbl DGV Weber conversion for my car and it runs great. If I open the primary barrel alone it's perfect. If I open the secondary barrel alone, it's perfect (can only be done by hand, not while driving). If I open both of them together a la wide open throttle, WHOA huge hesitation.

When I got the Weber I didn't know it had so many adjustable properties. There are air correction jets and accelerator pump nozzles, the main jets and an idle jet for each barrel! I don't know where to start in eliminating the hesitation that appears when both barrels open. Obviously, too much air is getting into the engine. Before I go spending upwards of $5 a jet I wanted to tap into the vast experience of the Slant Six community (I'm unemployed)

Any thoughts will be read in earnest!

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'73 Dodge Dart Swinger 225 904

How much modification has been done to the engine. Thanks Ron Parker













Hey Has That Thing Got A Bagel Bamboozler In It

Just necessarily bored .040 over on a rebuild, everything else is factory because I live in metropolitan NY where the speed traps are like weeds and traffic lets you go 50 mph... if you're lucky

The only reason a weber is on there is because I cracked the stock 1920 trying to tighten it down!

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'73 Dodge Dart Swinger 225 904

is it a progressive 2bbl? i have heard they can tricky to tune. first step is to get a book on tuning webers. i think HPBooks publishes a good one.

zedpapa

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1970 dodge dart w/225 /6 bored .040" over, holley 390cfm w/vac. sec., compcams 252s, clifford shorty headers w/2.5" exhaust w/flowmaster, f-body 11" front discs, aluminum A-833OD, 8 1/4 w/3.21 SG
soon to have 5 gears!!!

Sounds like an accelerator pump issue. The problem isn't too much air as much as too little fuel.

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"Mad Scientist" Matt Cramer
'66 Dart - turbocharged 225
My blog - Mad Scientist Matt's Lair

It is progressive; the secondary is mechanical and only opens past 3/5th throttle.

Thanks for your replies. Once the huge (total loss of power) hesitation passes it gets going nicely

Just have to plan traffic merging more, not a problem since I ride a 250cc motorcycle also

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'73 Dodge Dart Swinger 225 904

Hate to ask, but is this using a 2-1 barrel adapter, or a super six manifold?

I'm using that tall small-to-wide carb adapter that usually comes with 1bbl -> 2bbl kits like these.

I might be able to phrase the problem a different way: what is the condition when you step on the throttle and the car immediately hesistates, but then gets going after half a second? This is what happens when I arrive on the second barrel. I don't think it's the main jets in the second barrel because the car keeps pulling nicely after the hesitation, all the way to speeds-not-advised

It might be the accelerator pump nozzle (there's one for each barrel, sticking out like a support beam over the barrel, that shoots fuel downward directly into the carb throat) is too small on the second barrel as Matt suggested. I was wondering if anyone else had had tuning problems with the DGV Weber conversion

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'73 Dodge Dart Swinger 225 904