Engine Adapter plates for carbs

[NP435]

I may require a soft rock to massage my brain, seems a simple adapter for the 2150 carb to stock intake manifold is like a unicorn that lays golden eggs. I did find a local welding/fabrication shop to build one for 25 bucks. Thats 30 less than the one I bought from Summit. I should have gone local first job would be done and jeep having adventure's with me again.

 

[caveman]

Hell of a deal.

 

[TSB8C]

Doesn't the Transmission Dapt #2086 do this? Like $32 from Summit. Jegs, etc. I also believe there are versions by Mr Gasket (#1937) and others as well in the same $30 price range. This adapts from the Motorcraft style carb to the Carter bolt pattern on the intake. Of course the 2150 was made in two sizes -- 1.08" and 1.21" (287 and 351 cfm). The 1.08" was used on some AMC 304s. The 2100 came in about 10 sizes.

 

[NP435]

Doesn't the Transmission Dapt #2086 do this? Like $32 from Summit. Jegs, etc. I also believe there are versions by Mr Gasket (#1937) and others as well in the same $30 price range. This adapts from the Motorcraft style carb to the Carter bolt pattern on the intake. Of course the 2150 was made in two sizes -- 1.08" and 1.21" (287 and 351 cfm). The 1.08" was used on some AMC 304s. The 2100 came in about 10 sizes.

Well I tried those options total failure thanks for the help anyway

 

[elwood blues]

@NP435 Are you trying to adapt a MC2100 from the factory 2bbl intake or the factory 1bbl intake? And while I agree with you that the Transmission Dapt & the Mr. Gasket pieces aren't the best, but they're all that's available commercially. If you can have a local place make you one, I would say go with that. I bet you their Quality Control, and pride in their work, is a lot higher than the Chinese factory made options from wherever, that's my opinion though.


@TSB8C the 2100 & 2150, no matter what CFM size they came in, all had the same bolt pattern, it's the same as the Holley 2bbl carb 4-bolt (5 1/8 in. x 3 1/2 in.)

 

[NP435]

@NP435 Are you trying to adapt a MC2100 from the factory 2bbl intake or the factory 1bbl intake? And while I agree with you that the Transmission Dapt & the Mr. Gasket pieces aren't the best, but they're all that's available commercially. If you can have a local place make you one, I would say go with that. I bet you their Quality Control, and pride in their work, is a lot higher than the Chinese factory made options from wherever, that's my opinion though.


@TSB8C the 2100 & 2150, no matter what CFM size they came in, all had the same bolt pattern, it's the same as the Holley 2bbl carb 4-bolt (5 1/8 in. x 3 1/2 in.)

Factory 2bbl and a local fab shop is handling the problem. This carb first sat on the Clifford high flow intake, it does work but drivability when cold sucks, I really do not like having to keep the choke pulled out for the first 10 mins after I fire up. My Solid Rust CJ7 had this stock manifold and 2150 combo and ran like a champ cold. The other option was a 500cfm Edelbrock Thunder series going on the Clifford, at least that carb would flow with the manifold. Thanks for the reply.

 

[elwood blues]

No problem, be careful around here telling people you ran a 4bbl carb on a AMC 258 i6 / 4.2l . I'll just say its a controversial topic...

I'd like to see what your local fab shop makes, would you post up some pics when you get it? I might be interested in buying one!

I understand what you're saying about the cold, but VA cold isn't Wyoming cold. So I might not really understand.

 

[NP435]

No problem, be careful around here telling people you ran a 4bbl carb on a AMC 258 i6 / 4.2l . I'll just say its a controversial topic...

I'd like to see what your local fab shop makes, would you post up some pics when you get it? I might be interested in buying one!

I understand what you're saying about the cold, but VA cold isn't Wyoming cold. So I might not really understand.

It might be possible to do the 4bbl but my solution is about 300 bucks cheaper than the Edelbrock and with a stock cam would it really make decent power? If I can muddle through pic posting process I will, to date that tech ability fails me. I supplied the gasket and spacer to the fab shop as a pattern to work from in terms of bolt holes ect. Will they make a record for future production I have doubt. I went to school in Norfolk Nov 91 and the onshore breeze was "fresh".

 

[petemcl]

Holley says that the biggest mistake people make is putting too large a carburetor on their engines. They have a Carb Selector on their website that will help you (if you give honest answers) get the best performance out of your engine. Too large a carb will cause bottom end torque loss. This is particularly tough on off road trails like the Rubicon. It usually means that you have to rev your engine too high to get torque which mean that you will overheat the clutch. Mark Smith, one of the founders of the Jeep Jamboree , used to have a round button that he wore that said Getyourgoddamnfootofftheclutch around the edge. He treatened to smash one CEO's knee cap if he didn't pay attention. A properly tuned Jeep engine will just loaf along in low range until power is needed and just require the slightest amount of throttle to get over an obstacle. If you stall the engine Jeep starters are designed so that you can start the vehicle in gear without depressing the clutch. This is very handy when you stall out on a steep hill.

 

[NP435]

Holley says that the biggest mistake people make is putting too large a carburetor on their engines. They have a Carb Selector on their website that will help you (if you give honest answers) get the best performance out of your engine. Too large a carb will cause bottom end torque loss. This is particularly tough on off road trails like the Rubicon. It usually means that you have to rev your engine too high to get torque which mean that you will overheat the clutch. Mark Smith, one of the founders of the Jeep Jamboree , used to have a round button that he wore that said Getyourgoddamnfootofftheclutch around the edge. He treatened to smash one CEO's knee cap if he didn't pay attention. A properly tuned Jeep engine will just loaf along in low range until power is needed and just require the slightest amount of throttle to get over an obstacle. If you stall the engine Jeep starters are designed so that you can start the vehicle in gear without depressing the clutch. This is very handy when you stall out on a steep hill.

I sure don't know more than Holley, the 2150 motorcraft works well on a stock intake. My problem was the first intake on this engine was the Clifford Performance that wants at least a 400cfm carb to run right. Hot or at least warmed up it ran, it's the cold weather issues I was tired of and while it was apart fixing the leak at the header it was the right time to do the intake swap. I agree with foot OFF clutch. Side note I picked up my local made adapter plate and the holes to the manifold were not countersunk, the old adapter was countersunk and the shop should have seen this. So round 3 and hope they get it right this time.

 

[NP435]

Jeep is home! My cure may be working so in the am I shall fire it up and take a trip. What I do know for sure is my throttle response is better and it pulls right to 4kRPM. Same carb on the Clifford intake would not do this happily. Should be darn cold (18 degrees predicted) a decent test I think.