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Offenhauser 2X1 question

  #16  
Old 01-10-2014, 04:02 PM
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Originally Posted by vntgtrk
We see -20 here in the PacNW from time to time. If I go the 2X1 route I think I'll try to figure out a way to choke both carbs with one cable. This is also part of the reason for the Offy. Exh heat is the easiest way to warm up the carb/s
Did you ever install the carbs? 2x1? I'm gathering parts now to do the same offy with (2) 1904s and was looking for knowledge.
 
  #17  
Old 01-10-2014, 05:45 PM
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514PanelMan ended up pulling his off and going back to a single carburetor.
 
  #18  
Old 01-10-2014, 05:52 PM
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Yup. Nothing but trouble. Could never get the rebuilt carbs to sink correctly. I have more power and stability with the single 1904. Besides the Offy looking pretty with the dual glass bowl carbs, it's nothing but trouble. At least that's how it was for me. I've seen others run the same set up without any issues. Maybe they got lucky.
 
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Old 01-10-2014, 06:11 PM
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Well I went a whole 'nother route

265 cam, ram horns and dual exhaust. I'll have plenty of go juice methinks
 
  #20  
Old 01-11-2014, 06:27 AM
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Originally Posted by 51PanelMan
Yup. Nothing but trouble. Could never get the rebuilt carbs to sink correctly. I have more power and stability with the single 1904. Besides the Offy looking pretty with the dual glass bowl carbs, it's nothing but trouble. At least that's how it was for me. I've seen others run the same set up without any issues. Maybe they got lucky.
That's very discouraging. I already bought intake and extra carb. Has anyone had positive results with this set up?
 
  #21  
Old 01-11-2014, 12:20 PM
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You absolutely need to get a non-load-a-matic distributor for a dual carb setup. There are lots of guys who have run a Clifford manifold on the 223's, 300's etc with good enough results (if you can keep the carbs from leaking etc).
 
  #22  
Old 01-11-2014, 12:45 PM
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DELETED The game changed. No need for the comment.
 
  #23  
Old 01-11-2014, 01:06 PM
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Originally Posted by ALBUQ F-1
You absolutely need to get a non-load-a-matic distributor for a dual carb setup. There are lots of guys who have run a Clifford manifold on the 223's, 300's etc with good enough results (if you can keep the carbs from leaking etc).
Any recommendations?
 
  #24  
Old 01-11-2014, 01:15 PM
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Originally Posted by Damifiknow
Any recommendations?

IMO this is the best dist to use when getting away from loadomatic.
Duraspark is durable and there's a bazillion of 'em on 240/300's in the junk yards. You may or may not need to have the stock 223 dist gear opened up to fit the stock duraspark shaft and you may or may not need to have the duraspark oil pump shaft milled down to fit the oil pump.
There are quite a few resources on the interwebz that explain the process, some of them right here @ FTE
 
  #25  
Old 01-11-2014, 01:17 PM
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For a distributor? I'd see if Bubba's can retrofit yours to have mechanical and vacuum advance, Bubba's Hot Rod Shop - 1330 Main St., Speedway, IN 46224

I think some later ('60's) 223's also had that kind of distributor, with points. Would be OK with points or a Pertronix retrofit.

Edit: Vntgtrk has the better idea, I'm not a 6-cyl guy....
 
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Old 01-11-2014, 02:18 PM
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Originally Posted by ALBUQ F-1
For a distributor? I'd see if Bubba's can retrofit yours to have mechanical and vacuum advance, Bubba's Hot Rod Shop - 1330 Main St., Speedway, IN 46224

I think some later ('60's) 223's also had that kind of distributor, with points. Would be OK with points or a Pertronix retrofit.

Edit: Vntgtrk has the better idea, I'm not a 6-cyl guy....
Since my vac line for distributor comes from the manifold not the carb tells me I do NOT have a load-o-matic dis? True? When installing 2 carbs why not just plug vac line in carbs and leave it connected to manifold?

1960 F100 223
 
  #27  
Old 01-11-2014, 04:38 PM
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To sense the load of the engine, the manifold vacuum signal is used
How the Holley Load O Matic Distributor Works
I don't think it matters that the vacuum signal on yours is coming from the manifold as this article on load-o-matic explains. Manifold vacuum is manifold vacuum regardless if it's coming from the base of the carb or the manifold. Here's a pic of an 1100 with a load-o-matic can.
<a href="http://s689.photobucket.com/user/vntgfrd/media/five%20niner/Carb1VLOM.jpg.html" target="_blank"><img src="http://i689.photobucket.com/albums/vv257/vntgfrd/five%20niner/Carb1VLOM.jpg" border="0" alt=" photo Carb1VLOM.jpg"/></a>
BTW I swear by the 1100 on inline sixes. I did some minor mods to make it work on the 223. You can just plug the port where the can lives and all is good. I just heard from the guy who bought my 223. He says it's running really well and has plenty of power. Damn, shoulda just dropped it in my fridge
 
  #28  
Old 01-11-2014, 05:08 PM
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Unless the LoM system on the 6's is totally different than the V8 systems, then it would very much matter where the vacuum is connected. To quote from the linked page:

"The amount of vacuum that the Load O Matic works with is very low, compared to a conventional distributor's vacuum signal. Since this signal is used to provide both the load and rpm of the engine, you can see that when you swap a regular carburetor on a Load O Matic equipped Y Block, the manifold vacuum signal will NOT provide the right information to the Load O Matic. "
 
  #29  
Old 01-11-2014, 05:26 PM
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Originally Posted by ALBUQ F-1
Unless the LoM system on the 6's is totally different than the V8 systems, then it would very much matter where the vacuum is connected. To quote from the linked page:

"The amount of vacuum that the Load O Matic works with is very low, compared to a conventional distributor's vacuum signal. Since this signal is used to provide both the load and rpm of the engine, you can see that when you swap a regular carburetor on a Load O Matic equipped Y Block, the manifold vacuum signal will NOT provide the right information to the Load O Matic. "
That's how I understood the same article. If I'm using manifold vac then I prolly don't have a LoM dizzy. I got go look at the dizzy. Truck is in neighbors garage.
 
  #30  
Old 01-11-2014, 05:30 PM
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Originally Posted by vntgtrk
How the Holley Load O Matic Distributor Works
I don't think it matters that the vacuum signal on yours is coming from the manifold as this article on load-o-matic explains. Manifold vacuum is manifold vacuum regardless if it's coming from the base of the carb or the manifold. Here's a pic of an 1100 with a load-o-matic can.
<a href="http://s689.photobucket.com/user/vntgfrd/media/five%20niner/Carb1VLOM.jpg.html" target="_blank"><img src="http://i689.photobucket.com/albums/vv257/vntgfrd/five%20niner/Carb1VLOM.jpg" border="0" alt=" photo Carb1VLOM.jpg"/></a>
BTW I swear by the 1100 on inline sixes. I did some minor mods to make it work on the 223. You can just plug the port where the can lives and all is good. I just heard from the guy who bought my 223. He says it's running really well and has plenty of power. Damn, shoulda just dropped it in my fridge


I don't recall anything like that on my 1904. I'll go look tomorrow.
 

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