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Rat Rod Nation builds => Rat Rod Engine Discussions => Topic started by: AnimalChin5 on May 31, 2013, 08:53:29 PM

Title: three 2-barrel carb setup
Post by: AnimalChin5 on May 31, 2013, 08:53:29 PM
I have a 3x2 barrel carb setup I am wanting to use. I plan on running just
The center carb for now.  Just wondered what I needed to do to run it only.
Thanks
Title: Re: three 2-barrel carb setup
Post by: obama on May 31, 2013, 10:19:56 PM
What is it on, reason I ask is some run better than others on center carb only. Assuming it is common SBC, biggest thing is to make sure the two "dead" carbs don't allow air into the intake, once you feel they are leak proof (machined butterflys, or block off plate is a common method) your just running a two barrel intake and carb. Now you can attach dummy fuel lines and linkage and you be driving.
Title: Re: three 2-barrel carb setup
Post by: miraclepieco on June 01, 2013, 02:07:40 AM
I ran on the center carb of a tripower for about a year until I got around to rebuilding the set. Obama is correct:

I bought some aluminum-backed gasket material (aluminum sheet on one side, paper gasket on the other) at NAPA and made block-offs from it for the bases of the outer two carbs. I deactivated the secondary linkage by removing the slide stop on the connecting arm - that way it still looked operational. Then I cut down some plastic plugs I had in my parts bin and stuck them  in the fuel inlets of the outer carbs to plug off fuel flow. I think they were old outlet plugs that come with new brake master cylinders, but they fit pretty snug.

Ran fine on the center carb only, but made a world of difference when I got them all going.
Title: Re: three 2-barrel carb setup
Post by: AnimalChin5 on June 01, 2013, 03:25:08 PM
Thanks so much . I am missing the progressive part of my linkage. So
I will just run center till I get the rest.
Title: Re: three 2-barrel carb setup
Post by: hotwheels on June 01, 2013, 03:48:50 PM
That is an awesome looking set up. Gonna be fun to have on a ride.
Title: Re: three 2-barrel carb setup
Post by: AnimalChin5 on June 01, 2013, 06:26:36 PM
I need to know the screw size of a rochester 2g carb. The ones that screw the base to the throttle body part.
There are 3 that screw in from the bottom.
Title: Re: three 2-barrel carb setup
Post by: AnimalChin5 on June 02, 2013, 09:50:03 AM
#48
Title: Re: three 2-barrel carb setup
Post by: obama on June 02, 2013, 12:34:45 PM
Don't know the screw size, the tri-power set looks cool. You forgot to mention that it's a tri-power conversion to 4 barrel intake, still  can run just one, all three might give ya the same as 4 barrel when going thru converter. I have an extra Tri power set with intake if'n ya want one.
Title: Re: three 2-barrel carb setup
Post by: obama on June 02, 2013, 12:37:32 PM
PS. forgot to mention, with the 4 barrel to tri power conversion plate, you want to be extra cautious of air leaks.
Title: Re: three 2-barrel carb setup
Post by: AnimalChin5 on June 04, 2013, 01:53:09 PM
Don't know the screw size, the tri-power set looks cool. You forgot to mention that it's a tri-power conversion to 4 barrel intake, still  can run just one, all three might give ya the same as 4 barrel when going thru converter. I have an extra Tri power set with intake if'n ya want one.
I am interested. Pm me photos and price please