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Manifold compatibility
https://www.slantsix.org/forum/viewtopic.php?t=55096		 Page 1 of 1
Author:  Mr Zeal [ Sat Apr 12, 2014 4:01 pm ]
Post subject:  Manifold compatibility
I figure this has been done before, but since intakes appear to be coming out of the woodwork on FeeBay, and I just bought a set of headers, I need to know what is compatible and workable as options for my Volare/auto/super six. The headers I have are Hooker Super Comp long tubes.
Available right now are :
1- Offy 4bbl with Weber 38 adapted to it. I am afraid of this because the linkage is sideways and I have a kickdown to adapt as well as throttle linkage. When I look at my car and then at the intake and carb I don't see how I can make that work at all, even though the seller says its easy peasy.

2- Offy 2X1 setup. Again, setting up both throttle and kickdown linkage sounds iffy.

3- Offy 4bbl with Holley or Edelbrock. This sounds the simplest to set up, although I am not sure my stock linkage would work.

4- Clifford 4bbl with Holley or Edelbrock. I like the water ported heat source for the manifold since I am running headers. I wonder, though, if Hooker headers will bolt together well with this manifold.
Also, 390 Holleys and 500 Edelbrocks seem overpriced due to being marketed as "dual quad carbs". Is a readily available and affordable 600 CFM carb really out of the question?

But the question remains, which setup will work best with my headers and my car. And how available are the linkages for throttle and transmission kickdown? Any links?
Author:  DusterIdiot [ Sat Apr 12, 2014 5:23 pm ]
Post subject:  It's...
The headers typically have a 1/2" flange on them, clifford manifold tend to have the 1/2, but need a little massage in fitting the triangular washers to them. Offy was designed a little more toward fitting the stokc setup and the flange on the 4 barrel manifolds may require a little finesse as they are thinner than the header flange.

Linkage stuff is easy to get, I've used the Spectre throttle bracket kit from Autozone without any issues on my hi-po cars. The kickdown cable will be a Lokar unit.

Lots of local junkyards have Edlebrock AFB 600 cfm carbs on the shelf ready for someone to clean and rebuild at about $100-150...you can keep the power but the V-8 guys may pass you at the pump...the 500 would be a better fit...390 depends on availability and how much super tuning you want to explore. There are lots of Holley 600cfm carbs for sale on craigslist, but again you may get passed at the pump by a guy in a 360 and double the power....

2 cents,

-D.Idiot
Author:  Mr Zeal [ Sat Apr 12, 2014 6:01 pm ]
Post subject: 
How does the Weber 390 cfm carb compare?
Author:  Serj22 [ Sat Apr 12, 2014 8:06 pm ]
Post subject: 
I think the Weber 38 is better suited to the 2bbl manifold. It was a simple switch and is designed to mount in a Carter BBD configuration with an adapter. The kickdown and throttle wind up in the same spot as a 1bbl.
Author:  DusterIdiot [ Sat Apr 12, 2014 9:15 pm ]
Post subject:  Lol...
Quote:
How does the Weber 390 cfm carb compare?
this is like apples and oranges...2 barrel flow ratings are different from 4 barrel ratings...a 390 cfm 4 barrel carb at 1.5" Hg drop flows approximately the same as a 500 cfm 2 barrel carb at a 3" Hg drop.... so a 390 cfm 2 barrel carb will flow a lot less than the smallest 4 barrel available...(would be like a 230 cfm 4 barrel...)

-D.Idiot
Author:  Mr Zeal [ Sat Apr 12, 2014 9:57 pm ]
Post subject: 
I am amazed at your knowledge, my friend. if you ever need info on CAT 3406 or Detroit Series 60 diesels, then maybe I can return the favor. 8)
Author:  DusterIdiot [ Sun Apr 13, 2014 8:47 am ]
Post subject:  Deal...
Quote:
I am amazed at your knowledge, my friend. if you ever need info on CAT 3406 or Detroit Series 60 diesels, then maybe I can return the favor.
Sounds like a deal to me.Hopefully you can make one of the slant six races this summer and get to see some of what we do in action.

:wink:
Author:  Wesola78 [ Tue Apr 15, 2014 6:05 am ]
Post subject: 
A Weber 38DGES and Offy 4bbl intake is what I have on my Volare. I just mounted the carb sideways.
Author:  Mr Zeal [ Tue Apr 15, 2014 6:38 am ]
Post subject: 
What kind of performance do you get with that setup? What else did you do to the mill? What converter? What butt gears?

I am really trying to find a good formula for my Volare.
Author:  Danarchy [ Tue Apr 15, 2014 7:46 am ]
Post subject: 
Quote:
I think the Weber 38 is better suited to the 2bbl manifold...The kickdown and throttle wind up in the same spot as a 1bbl.
"2bbl"? a Super Six manifold? Just curiousity on my part.-Thanks Dan
Author:  Reed [ Tue Apr 15, 2014 8:20 am ]
Post subject: 
Quote:
Quote:
I think the Weber 38 is better suited to the 2bbl manifold...The kickdown and throttle wind up in the same spot as a 1bbl.
"2bbl"? a Super Six manifold? Just curiousity on my part.-Thanks Dan
Not sure what your question is Dan. "2 bbl" is old-time shorthand for "two barrel" when referring to carburtors. 1 bbl, 2 bbl, 3 bbl (yes, there were some!), and 4 bbl are what you see. I don't know why it is bbl instead of brl, but it is.

The "Super Six" was the factory Chrysler slant six two barrel caburetor package used on late 70s and early 80s cars, trucks, and vans.
Author:  Danarchy [ Tue Apr 15, 2014 8:47 am ]
Post subject: 
Sorry, should have been more clear.
Quote:
Weber 38 is better suited to the 2bbl manifold
Does he mean the Weber carb is better suited to a 2 barrel manifold*, as opposed to a 4 barrel manifold?(Offy,Clifford,AussieSpeed) Both would need an adapter?correct? I have a Super Six manifold, but not sure what I plan to do with it in the future.


*Super Six
Author:  Reed [ Tue Apr 15, 2014 9:01 am ]
Post subject: 
Quote:
I think the Weber 38 is better suited to the 2bbl manifold. It was a simple switch and is designed to mount in a Carter BBD configuration with an adapter. The kickdown and throttle wind up in the same spot as a 1bbl.
The Carter BBD was only offered on the factory "Super Six" two barrel manifold. I think that is what he is talking about.
Author:  Danarchy [ Tue Apr 15, 2014 10:21 am ]
Post subject: 
:shock: Oops! I must have missed this Thread!
http://www.slantsix.org/forum/viewtopic ... t=weber+38
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