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Unread 04-02-2013, 04:37 PM   #1
Rproject
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The ebay Motorcraft 2150

OK guys, let's here it. I'm about ready to pull the trigger on that ebay Motorcraft 2150 that comes "pre tuned" with the adapter plate, etc. Those of us with carbs know the one I'm talking about.

So let's here it - good, bad, ugly, indifferent? I don't expect it to be perfectly tuned, but how is it to install? Are the instructions clear? Is the guy helpful? Is it a flaming bag of fecal matter on my doorstep at 2:00 in the morning?

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Unread 04-02-2013, 04:44 PM   #2
rykemc
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Installed one on my 88 and had no problems with it at all. Also installed one on my dad's 81 CJ and had the same experience. Can't say anything bad about the guy or his product.
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Unread 04-03-2013, 12:17 AM   #3
kgb_m3
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Get it, make sure to nutter it and get the ignition upgraded. You'll definitely gain some nice power and the jeep will run like a dream. Take your time, his instructions suck, his tune sucks, but the carb is good. Tune it yourself and enjoy.
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Unread 04-03-2013, 01:43 AM   #4
BigDub
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Buy it!

Just got one. The kit was complete and I thought the instructions were pretty easy to understand, he just gives you a basic guideline because your individual Jeep setup may be different from someone else's. Just mount it per instructions and the rest will make sense once you look at it.

Nutter is good, but if you have the means, I strongly suggest a CDI box (MSD). Summit Racing frequently has their brand on sale, and it seems to work just as well.
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Unread 04-03-2013, 06:58 AM   #5
Rproject
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Thanks guys. I pulled the trigger this morning. Also getting the airbox kit and electric choke option. I'm going to ATTEMPT this on my own. If I get into trouble, I've got a couple guys that can come bail me out. Hoping I can do this solo. It'll be the most technical project I've undertaken under the hood.
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Unread 04-03-2013, 10:37 AM   #6
Jax89Jeeper
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Quote:
Originally Posted by kgb_m3
Take your time, his instructions suck, his tune sucks, but the carb is good. Tune it yourself and enjoy.
Agreed.... I have helped a dozen or so of his customers get things setup right when he stops helping. I got my new carb from him a year or so ago.... To get things running right I had to swap both the main jets and the powervalve-- this is all the tuning he can do for you and it was not even close... And I live at sea level, meaning a base tune is not difficult to figure out. I contacted him to get the correct jets and PV and he was no help at all, sending only a set of jets and would not respond about the PV and finally stopped responding at all. Read all the tutorials you can find on the MC2100/2150 tuning and know what effect each change will have. The MC is the easiest carb to tune, but with out the proper jets and PV, turning the screws will not get you dialed in and you'll have serious drivability issues. I had some experience with carbs before buying the MC from the ebay guy, but if I had not, I would have been completely lost and he would have been no help at all.... He sells good quality carbs, but the claim of a tuned carb is far from the truth, and his customer service sucks big time. If you have any issues, I am always happy to help.
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Unread 04-03-2013, 11:13 AM   #7
Rproject
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Quote:
Originally Posted by Jax89Jeeper View Post

Agreed.... I have helped a dozen or so of his customers get things setup right when he stops helping. I got my new carb from him a year or so ago.... To get things running right I had to swap both the main jets and the powervalve-- this is all the tuning he can do for you and it was not even close... And I live at sea level, meaning a base tune is not difficult to figure out. I contacted him to get the correct jets and PV and he was no help at all, sending only a set of jets and would not respond about the PV and finally stopped responding at all. Read all the tutorials you can find on the MC2100/2150 tuning and know what effect each change will have. The MC is the easiest carb to tune, but with out the proper jets and PV, turning the screws will not get you dialed in and you'll have serious drivability issues. I had some experience with carbs before buying the MC from the ebay guy, but if I had not, I would have been completely lost and he would have been no help at all.... He sells good quality carbs, but the claim of a tuned carb is far from the truth, and his customer service sucks big time. If you have any issues, I am always happy to help.
So what's the problem with the jets and power valve?
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Unread 04-03-2013, 01:56 PM   #8
Jax89Jeeper
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Quote:
Originally Posted by Rproject

So what's the problem with the jets and power valve?
They were the wrong size for a proper tune.
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Unread 04-03-2013, 04:23 PM   #9
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Quote:
Originally Posted by Jax89Jeeper View Post
They were the wrong size for a proper tune.
It says he's sending it with 1.08 venturis. I know there are different sizes for different applications, but I have no idea what the benefits are of one size over another. School me?
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Unread 04-03-2013, 04:43 PM   #10
Jax89Jeeper
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Quote:
Originally Posted by Rproject

It says he's sending it with 1.08 venturis. I know there are different sizes for different applications, but I have no idea what the benefits are of one size over another. School me?
The venturi and the jets are two completely different things.... The 1.08 venturi is the correct size for the 4.2. In simple terms, the jets are what meter the fuel coming in to the air stream and the venturi is what meters the amount of air that is able to flow thru (CFMs). The venturi size cannot be changed, where as the jets are a tunable part. The typical 4.2 install of the MC carb will use anywhere from #46 jets up to #52 depending on your location in relation to sealevel.
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Unread 04-03-2013, 04:52 PM   #11
Rproject
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Quote:
Originally Posted by Jax89Jeeper View Post

The venturi and the jets are two completely different things.... The 1.08 venturi is the correct size for the 4.2. In simple terms, the jets are what meter the fuel coming in to the air stream and the venturi is what meters the amount of air that is able to flow thru (CFMs). The venturi size cannot be changed, where as the jets are a tunable part. The typical 4.2 install of the MC carb will use anywhere from #46 jets up to #52 depending on your location in relation to sealevel.
OK, so which ones does he include? Oh, and I'm a few hundred feet above sea level.
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Unread 04-03-2013, 04:59 PM   #12
Jax89Jeeper
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I cannot be certain which will be installed in yours..... I would guess he will have #50 jets and a 9.5 inHg Power valve. You won't know for sure what you need until you get it installed and idling properly. If these need changed, the cost is minimal and the parts are usually locally available just about anywhere. As I said, read some mc2100/2150 tuning tutorials online, KNOWLEDGE IS YOUR FRIEND.
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Unread 04-03-2013, 06:02 PM   #13
zlieberman
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I purchased my 2150 from the ebay guy a few years ago and so far have been really happy with the carb. Like stated by others his customer service sucks after the initial purchase. He didn't even send the instructions with my shipment and I had to email back and forth with him a few times to get them. I didn't give him feedback until he sent them to me. The install was fairly easy and straight forward and it was tuned well, I didn't have to adjust it at all. This is on a jeep that doesn't see road use at all and I don't have to do inspections in my state. The carb runs smoothly at all angles and has never stalled like my old webber used too.
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Unread 04-14-2013, 11:13 PM   #14
Rproject
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Got my carb in. Went to put it in today. Total install time was about 4 hours. Once I fixed a leaky fuel line, she fired right over. Minor idle adjustment and away I went. For such a technical job, it went smooth as silk!
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Unread 04-15-2013, 12:19 AM   #15
mudsweatNgearz
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About a year ago I bought one from mr ebay guy and bolted it on, hit the starter and she fired right up and purred like a kitten...brought a big smile to my face. I only had to adjust the idle a tiny bit. Been perfect ever since! Big power increase and the botton end torque is insane. Where most motors would stall out or cough and sputter the ol 258 pulls like a tractor from 600 rpms with this carb. I am sure my HEI has alot to do with that also.
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