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Dashpot Carb help


blazin6969

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Alright, so car show season is almost upon us. And I think I may have found out why my car stalls when I am pulling up to a red light or stop sign.

I transplanted a 56 dodge 230(rebuilt) and a 55 powerflite transmission in my 1934 plymouth. The donor car did not have intake,carbs,or exhaust manifold. So I ended up using everything from my original 1934 Plymouth. I don't think in 1934 they had dashpots. So I guess my next questions would be does anyone know what kind of carb I should be looking for now?

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40 minutes ago, blazin6969 said:

Alright, so car show season is almost upon us. And I think I may have found out why my car stalls when I am pulling up to a red light or stop sign.

I transplanted a 56 dodge 230(rebuilt) and a 55 powerflite transmission in my 1934 plymouth. The donor car did not have intake,carbs,or exhaust manifold. So I ended up using everything from my original 1934 Plymouth. I don't think in 1934 they had dashpots. So I guess my next questions would be does anyone know what kind of carb I should be looking for now?

Since you are not restoring for show points,pretty much any single barrel carb used on inline 6's between 200 and 250 cubic inches would work fine for you as long as it has the dashpot and linkage for use with a auto trans.Holley 1904's are good carbs used on everything BUT Mopars for a couple of decades,so they are fairly easy to find with dashpots. Getting kinda pricey these days,though. If it were me,I would look for one with a part number that indicates it came from 215 or 223 OHV Ford 6 because as-is it would be a pretty good match for your 230. Stay away from the ones used on 170 cubic inch Falcons or similar displacement engines unless you plan on running dual or triple carbs. In that case,they would be close to ideal.

 

I am no expert on the port sizes of various Mopar engines,but I suspect you could find a little more power and maybe even fuel mileage by going with more modern intake and exhaust manifolds. The 50's 230's made a LOT more power than the 34 201-whatevers,and being able to inhale and exhale is a large part of that.

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Thanks! Yea I never thought it would honestly be this much trouble. The carb was rebuilt and I just didn't understand why it would stall only coming to a light or stop sign. I'm currently working on getting a intake manifold and split exhaust. Just figured I'd try to address this issue as well. If anyone has anything for sale let me know that too please.

 

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9 hours ago, blazin6969 said:

Thanks! Yea I never thought it would honestly be this much trouble. The carb was rebuilt and I just didn't understand why it would stall only coming to a light or stop sign. I'm currently working on getting a intake manifold and split exhaust. Just figured I'd try to address this issue as well. If anyone has anything for sale let me know that too please.

 

I will have a dual carb 230 aluminum intake for sale once I figure out which one I want to run on my own 230. I have an Edmunds that is show polished,and a Nickerson that was sorta polished at one time. Both have water  heat.

 

Depending on your chassis,you make a split manifold from a car manifold and a truck manifold. Exhaust manifolds are pretty pricey these days,so that can be expensive.   Even worse,it is wasteful.

 

Some people just cut an additional exhaust hole in their stock manifolds and add an outlet with a flange to bolt the second exhaust pipe on. Not really sure how well that works flow-wise with the Siamesed Mopar exhaust ports,though.

 

You can always make headers from exhaust pipes and flat plate,but sometimes you can find cast iron headers that were made by some manufacturer whose logo I can't remember right now,and I'm looking for a set of those in 230 and another set in 251 for my engines. The steel tube headers probably put out more power,but I like the sound of the cast iron headers.

 

 

Edited by knuckleharley
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Thanks! I actually have an Edmunds as well! It could probably use a polish but for the most part its in really good condition. I don't know if I want to run dual carbs yet though. I think it would be easier to find a period correct carb for that engine with a dashpot and also more economical. My current exhaust manifold is not that great and was cracked once and brazed.

 

I guess I can go with a stromberg BXVD-3

Anyone know the model number for a carter one with the dash pot?

Edited by blazin6969
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20 minutes ago, blazin6969 said:

Thanks! I actually have an Edmunds as well! It could probably use a polish but for the most part its in really good condition. I don't know if I want to run dual carbs yet though. I think it would be easier to find a period correct carb for that engine with a dashpot and also more economical. My current exhaust manifold is not that great and was cracked once and brazed.

The dashpot carb will be needed regardless of if you run one or two carbs,but  there is no such critter as a "period correct" dashpot carb for a 1934 anything.

I could VERY easily be wrong about this,but I THINK you will need dashpots on BOTH carbs  for balance purposes if you run a 2 carb intake.

 

If you run a 3 carb intake I THINK you can get by with 1 dashpot on the center carb.

 

If I am wrong,and I probably am because reason often collides with reality,somebody PLEASE correct me.

 

BTW,if you want to go with "period correct",but not "vehicle correct",Mopar had dual carb and dual exhaust factory setups for big trucks starting in the mid-30's. You sometimes see them for sale,but they are expensive. AFAIK,none of the cars ever left the factory with that intake or exhaust setup.

Edited by knuckleharley
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Yea, I mean period correct for the D62 not necessarily the car. I found an old BXVD-3 (3-59) I think these were off pickup and I assume its not much different.

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22 hours ago, blazin6969 said:

Thanks! I actually have an Edmunds as well! It could probably use a polish but for the most part its in really good condition. I don't know if I want to run dual carbs yet though. I think it would be easier to find a period correct carb for that engine with a dashpot and also more economical. My current exhaust manifold is not that great and was cracked once and brazed.

 

I guess I can go with a stromberg BXVD-3

Anyone know the model number for a carter one with the dash pot?

If you run the dual intake and decide to go with Langdon's dual Carter Weber carbs, you could buy a dashpot for a ~1982 Escort that bolts to the carbs.  My FD works OK without the dashpots on my Carter Webers but I may add them down the road.

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On 3/21/2018 at 11:10 AM, Adam H P15 D30 said:

If you run the dual intake and decide to go with Langdon's dual Carter Weber carbs, you could buy a dashpot for a ~1982 Escort that bolts to the carbs.  My FD works OK without the dashpots on my Carter Webers but I may add them down the road.

Thanks I might look into this

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