1101 carb too big for stock 200ci six?

[Sedanman]

The new autolite 1101 I just got from Pony Carbs to put on my '68 200 (with '69 big log head) is not running well, and I'm starting to wonder if I made a mistake in ordering it. I told them I had a '69 250 so I could get the bigger carb. It misfires all over the place, and I've adjusted the idle, mixture, timing, etc. It does not matter how I adjust the timing- I even put the 170 ci 1100 back on just to check, and it runs much smoother and drives fine, even though it's too small for the engine.

Put the 1101 back on with the same timing specs and it misfires at about 1500 rpm on up with no load, and surges going down the road even with the vac. advance disconnected(it is not pinging so don't think it's too lean). I don't want to void my warranty on this $330 carb by taking it apart and changing jets and such- but they test run them on engines before selling so this carb must be a bad match for my engine, right?

Thor

 

[stevexysupersix]

Call Pony Carbs and talk to Jon Enyeart. Tell him exactly what you have and he may be able to provide a solution.
Cheers,
Steve-O

 

[ludwig]

I can tell you from experience that he is no friend of hop-ups for his carbs and engine applications. Tell him straight out what you want to achieve and what you have with your present setup. Within those limits, I found him to be very helpful.

 

[Sedanman]

Are you guys saying I should tell him I have a 200 instead of a 250? I've heard others here say they've run an 1101 on a 200 just fine, and did not "tell the truth" when ordering it

 

[ludwig]

Chill out. They guy's not your priest. Just call and ask what's up. He'll help you.

 

[Anonymous]

Makes me wonder what kind of dizzy you have? Later model carbs and older dizzys have compatibility problems. If you have a load-o-matic the 69 carb is ported wrong for your vac/advance.

 

[Sedanman]

Chill out. They guy's not your priest. Just call and ask what's up. He'll help you.

Do I detect some uncalled for sarcasm here? :roll: I'm being cautious as others have said this company is difficult to deal with if you have a problem with their product, and have been told more than once not to tell them if you aren't using the carb for the "correct" application.

Danwagon,

Thanks for the suggestion. I've got the later distributor- it has the extra vacuum port plugged up. I do wonder where that connects to, though as the carb I got has line port near the top of the carb but I've plugged it for now. I've been doing the comparisons between the two carbs with the vacuum advance disconnected.

Thor

 

[ludwig]

I haven't had any trouble at all with them and the guy is real helpful. He just won't give you any hop up tips.
What I'm saying is: relax and make the call. They back their product.

 

[CZLN6]

Howdy thor and All:

Let me assure you that the 1101 is not too big for a relatively stock 200. I put on on my 200 along with a '68 distributor with vacuum advance/retard cannister. It ran great! Even a WOW! All else was stock '65 200 at tht point.

I'm with Ludwig on this one. I'd call Jon Enyeart at Pony and tell him as openly and honestly what you've got/working with. He is in the restore business, but they do list a performance 1100 which has the 1101 venturi in it so they have been down the "let's get a little more out of it" road too.

You might want to try unpluging the vacuum retard side of the vacuum cannister on the distributor. When I plugged mine it slowed the function of the advance side.

Adiso, David

 

[Sedanman]

I'm thinking at this point it may be a jetting issue, but don't want to tear into it yet. All of the larger carbs I've put on this engine have caused a hesitation and/or surging problem- is it possible a larger carbs will make a problem the engine already has seem more noticeable? With the old (worn) 1100 on there is very minor misfire but no surging or hesitation. I'll call Pony later this week.

Thor

 

[Anonymous]

I finally got around to calling Pony today and here's the deal. John say's the 1101 is too big for a 200- plain and simple. I'll have to pay a cleaning fee to return it (about $40) , and then purchase an 1100 for a 200. If I want the larger venturi option that's another $30 or so.

So adding that to the original $315 price tag I'll be in the $400 price range Something's wrong here- I CANNOT believe that there is not a suitable stock carburetion alternative for less money. If I'd known this I would have just kept running the crappy 170 ci 1100 until I could afford a 2-v head

 

[Anonymous]

As a still self professed novice at all of this I can attest that an 1101 will fit on our 200's. Yes it is too big literally on my 66 log, but I dremeled it out to allow the butterfly to open. It runs great (for now, knock on wood).
I will assume without having personal knowledge that on a 68 big log you didnt have too mill it out, so Im not sure why it would be too big, other than the physical aspect of mating it to the log.

Im sorry I cant help you anymore than saying I have a '66 200 that had an 1100 and switched to the 1101 and it worked out Ok. Cost me 150 bucks from JohnsMustang in Houston
Not sure why they are saying it's too big.

I hope you find a solution without having to shell out anymore money. I know it gets frustrating.

Kelly

 

[Sedanman]

It physically bolts on- but does not run right. John said that is the reason for the hesitations and such - it's too much carb. I've heard others say they have run this carb on a 200 with no problems, but when you are talking to the owner of the company who makes the decisions about your returns or refunds, what can you do?

Thor

 

[addo]

You (from memory the head hasn't been off) aren't quite sure what's going on inside this engine and want to change the carb. It may be the culprit/solution, but I kind of doubt it.

My suspicion is there's a whole bunch of things at <ideal condition, summing up to the present status. Even a new head is only as good as the shortblock.

 

[Lazy JW]

..... If I'd known this I would have just kept running the crappy 170 ci 1100 until I could afford a 2-v head

Huh?!? Doesn't the 2-v head use a TWO barrel carb? (hence the term, 2V). Doesn't the two barrel flow more than the one barrel? How then will THAT make it run better? Methinks that guy is just more concerned about a warranty issue than anything else. How are all these other guys making THEIR two barrel carbs work if they are too much flow for a 200? Am I missing something here?
Joe

 

[Anonymous]

Lazy J,

Yes, the 2-v head flows more than a stock head, and indeed uses a 2bbl carb. What I'm saying is that is my eventual goal, and I'm frustrated in paying well over $300 for a good 1bbl carb to use for a couple of years till I can afford to upgrade.

Addo's 2nd sentence has me a bit confused; all I know is the car runs fairly well (but not up to it's full potential) on the 170 1100, and runs like crap on 1101 I got from pony, so it must be the carb. I've spend countless hours checking timing and adjusting specs with no change in the way the car runs. Regardless, I've got an expensive carb that does not work so I may as well return it and get the proper one for my engine. What other choice do I have? I've got a blown manifold gasket (head has to come off to fix broken bolts) and major frontend problems and all this has to be fixed while I'm driving it

 

[Lazy JW]

Indeed, the 2v head is CAPABLE of flowing more but it is the shortblock that produces the vacuum that pulls the air through the head/carburetor. I believe what Addo is refering to is the condition of the shortblock in regards to cam timing, lift/duration, etc. If the shortblock isn't generating a proper vacuum signal then the carb won't work right. Plenty of folks have made bigger carbs work, so it seems obvious that yours isn't too big.
Joe

 

[Sedanman]

Plenty of folks have made bigger carbs work, so it seems obvious that yours isn't too big.
Joe

This may indeed be true, but since John (at Pony Carbs) is saying that it's too big and he makes the decisions on returns, I have no choice but to follow his lead. There may be something else wrong with the carb, but that doesen't really seem to matter at this point. The 1100 does not exhibit the hesitations and misfiring that the 1101 does, so it's kind of hard for me to argue with him.

Thor

 

[Lazy JW]

Bummer. That leaves you between a rock and a hard place for sure. I suspect there really is something wrong with that particular carb, but there really isn't much you can do differently without spending yet more money
Joe

 

[turbocharged66stang]

hay man I'm hear to tell you that i had a small 2v carb on my stock 200 then upgraded to a holly 500cfm 2v and it loved every bit of it after i jeted it down some.

TURBOCHARGED66STANG