Autolite 1101 carb questions.

[CAMDEN289]

Hello,
I posted a similar question a while back and a wanted ad as well,anyhow here goes.
Basically I'm looking to upgrade my stock 66 Mustang from the autolite 1100 and load o matic distributor to an Autolite 1101 and a 68 dist.I have an nos dist. The best carb to use I was told would have come off of a 69 250 and it did not have an scv (not easy to find).Well A friend of mine has a mint 1101 but it has an scv.My main question is,Can I plug up the scv port and use this carb with my 68 distributor? If so will this perform just as well as a non scv 1101?

Next question I've been told that the dual diaphragm distributors should only use one of the ports and the other should be blocked off? Is this true? If this is the case can I use a single port vacuum advance? Sorry for the long-winded questions I'm just trying to make perfect sense of this.Thanks

 

[jamyers]

Hello,
I posted a similar question a while back and a wanted ad as well,anyhow here goes.
Basically I'm looking to upgrade my stock 66 Mustang from the autolite 1100 and load o matic distributor to an Autolite 1101 and a 68 dist.I have an nos dist. The best carb to use I was told would have come off of a 69 250 and it did not have an scv (not easy to find).Well A friend of mine has a mint 1101 but it has an scv.My main question is,Can I plug up the scv port and use this carb with my 68 distributor? If so will this perform just as well as a non scv 1101?

Next question I've been told that the dual diaphragm distributors should only use one of the ports and the other should be blocked off? Is this true? If this is the case can I use a single port vacuum advance? Sorry for the long-winded questions I'm just trying to make perfect sense of this.Thanks

* A Load-O-Matic (SCV-controlled) distributor needs a carb with a SCV.
* A carb with a SCV does not need a Load-O-Matic (SCV-controller) distributor.

I'm not sure about which dist you've got, is it a L-O-M? Sounds like it's not, and that it's a regular one. If that's the case, just plug the SCV port and hook the dist vacuum to the intake manifold.

As far as the dual-port vacuum advances, I don't know. I've always gone down to my local partsmonkey and bought a single-port advance canister.

 

[CAMDEN289]

Thanks for the reply.Currently the car is running the stock load o stuff.Like I said I want to phase it out and go with the non load o dist.I also wanted to step the cfm in the carb by going with an 1101 instead of my stock 1100.That said,part of my question was answered.So I unscrew the scv from the 1101 I'm going to get and use it that way.
My question now is what is the difference between the 1101's with scv and non scv? Are they both the same size,etc.Is there a difference in performance? Is the only difference the scv itself? I ask because I want to get the best one fo rmy setup I'm in no rush as my car runs and looks great so It's not like I need a carb to get the car going,I'm just looking for a slight performance upgrade.Thanks.

 

[fordconvert]

I have 1100's with two venturi sizes and didnt notice any significant change in performance between the two even changing jets. If the carb is running well now I would work on other stuff then save and research a larger carb upgrade.

 

[CZLN6]

Howdy Camden and all:

The early 1101 is rated at 210 cfn. It was designed for use on full size Ford cars with a 223 six. They have a SCV for specific vacuum signal to LoM distributor.

The '69 250 1101 was used on the earliest EPA modded engines. It also is rated at 210 cfm. It's vacuum port is a ported vacuum signal. The later point type distributor you have will likely have a vacuum retard and vacuum advance cannister. For performance use only the outside nipple and live the inner nipple open/unplugged.

The combination of the 25 cfm increase and centrifugal advance in the distributor will give you a nice increase.

If you are using the early 1101 with a SCV, remove the SCV and plug the hole. Then use full vacuum to the distributor vacuum advance. You may not be able to use as much initial advance this way. I do not know how to convert a SCV carb to a ported vacuum source carb.

Ford Convert- 1100s come with 3 size venturi. 144- 1" @130cfm, 170- 1.1" @156 cfm and 200-1.2" @185 cfm. All three of these carbs have a 1 7/16" throttle bore. The 1101 venturi measures 1.29" id @210 cfm, and has a larger 1 11/16" throttle bore. They all look very similiar from the outside. Tuning the carb and the distributor is critical to realizing any performance increase.

Hope that helps.

Adios, David

 

[CAMDEN289]

Thanks very much for the info David.That was exactly what I was looking for.I posted in the past about my car,basically it's a stock 66 Mustang convertible,I figured if I could I'd like to pick up a little extra power while still keeping the stock look underhood. I was fortunate enough to get an nos 1968 dist .The carb has been tougher to find,But a friend of mine has a rebuilt one that he would let me have for very little,the only problem as stated was the SCV.Now that I know I can plug the scv hole I'll grab the carb.When I get this installed I'm sure I'll post with feedback.Unfortunately I won't be doing this until the spring as the car is in hibernation.Thanks again for the help.