Moving from 2100 to a 2150 carb

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Moving from 2100 to a 2150 carb

Postby landshark » Mon Oct 26, 2015 1:34 pm

So the 72 needs its 2100 carb rebuilt so I was thinking of using the 2150 I have laying around from the 76. I know the choke is an electric one from my recollection. Any reason I shouldn't swap? Anything that would stop me from swapping? It's a slight upgrade correct? Either one needs to be rebuilt. Total carb newbie


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1976 Bronco "Green, Yellow, whatever", 1969 Bronco "Red", 1972 Bronco Stocker "Kind of Blue/Grayish"
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Re: Moving from 2100 to a 2150 carb

Postby Kinder » Tue Oct 27, 2015 6:06 am

Check the Venturi sizes, it's stamped on the side, larger isn't always better for our thin air on a stock engine. The 2150 looks to more emission compliant, but that really doesn't matter for your 72. Having a electric choke is a nice upgrade, but if it has a choke pull off it complicates it a bit.
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Re: Moving from 2100 to a 2150 carb

Postby landshark » Tue Oct 27, 2015 7:51 am

kinder wrote:Check the Venturi sizes, it's stamped on the side, larger isn't always better for our thin air on a stock engine. The 2150 looks to more emission compliant, but that really doesn't matter for your 72. Having a electric choke is a nice upgrade, but if it has a choke pull off it complicates it a bit.


So really i wouldn't be gaining anything, iam not trying to "upgrade" the 72, just get it running so seems like i should just rebuild the 2100 as its probably jetted correctly for Denver anyway.
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Re: Moving from 2100 to a 2150 carb

Postby Eck » Tue Oct 27, 2015 8:26 am

landshark wrote:
kinder wrote:Check the Venturi sizes, it's stamped on the side, larger isn't always better for our thin air on a stock engine. The 2150 looks to more emission compliant, but that really doesn't matter for your 72. Having a electric choke is a nice upgrade, but if it has a choke pull off it complicates it a bit.


So really i wouldn't be gaining anything, iam not trying to "upgrade" the 72, just get it running so seems like i should just rebuild the 2100 as its probably jetted correctly for Denver anyway.


OnTrac Performance has a ton of carb stuff-- gaskets and jets, etc. If I remember correctly, they had a reference chart to size the jets according to the altitude you wanted to jet it for.
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Re: Moving from 2100 to a 2150 carb

Postby landshark » Tue Oct 27, 2015 8:29 am

Eck wrote:
landshark wrote:
kinder wrote:Check the Venturi sizes, it's stamped on the side, larger isn't always better for our thin air on a stock engine. The 2150 looks to more emission compliant, but that really doesn't matter for your 72. Having a electric choke is a nice upgrade, but if it has a choke pull off it complicates it a bit.


So really i wouldn't be gaining anything, iam not trying to "upgrade" the 72, just get it running so seems like i should just rebuild the 2100 as its probably jetted correctly for Denver anyway.


OnTrac Performance has a ton of carb stuff-- gaskets and jets, etc. If I remember correctly, they had a reference chart to size the jets according to the altitude you wanted to jet it for.


I think the 2100 is already jetted correctly, I think it just needs a rebuild, leaks like a sieve from the accelerator pump.. I will look for a rebuild kit and see if that solves the issues. The bronco has been sitting for over 10 years, things are a little dried out
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