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11-05-2020, 08:52 PM | #1 |
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Location: Houston TX
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1901 teapot question
I know everyone says to throw them away but I haven't had much issue with mine. My question is, is there a way to kind of hop them up alittle bit? I have looked around and haven't seen much of it. I plan on upgrading down the road but was just curious if anyone has modified them to get alittle more out of them for the time being
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11-05-2020, 09:10 PM | #2 |
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Re: 1901 teapot question
If I understand correctly, you want to make a tempest in a teapot?
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11-05-2020, 09:16 PM | #3 |
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Re: 1901 teapot question
Haha sure.. I think haha? I just want to see if its possible to step them up in performance alittle
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11-05-2020, 09:20 PM | #4 |
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Re: 1901 teapot question
I'm not an expert on these by any means, but I would think that anything that would increase performance would have an adverse effect on fuel economy and driveability. Even if you could get a small performance increase, it would be almost imperceptible by "the seat of your pants". The one upgrade that may help is boring out the manifold to match a small base 2G and use one of those.
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11-05-2020, 09:45 PM | #5 |
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Re: 1901 teapot question
Thanks tubman, I was just curious. I was there wouldn't be a big performance upgrade for a teapot but just been thinking about it as of late. I really don't have any issues with mine now so I was debating on changing it if there was anyways. Ill look into the manifold though
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11-06-2020, 08:40 AM | #6 |
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Re: 1901 teapot question
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11-06-2020, 11:20 AM | #7 | |
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Re: 1901 teapot question
Quote:
Sal |
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11-07-2020, 10:34 AM | #8 |
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Re: 1901 teapot question
2GCc and a GM dist is the answer.
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11-07-2020, 10:37 AM | #9 |
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Re: 1901 teapot question
If you want to go EFI, Holly has you covered - 2GC throttle body EFI
https://www.holley.com/products/fuel...parts/550-866K
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11-07-2020, 01:40 PM | #10 |
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Re: 1901 teapot question
On my way back from the post office today, I stopped at my shop and threw a caliper on a Merc manifold and a 2G, just to see how much difference there was. The throttle bores in the Merc Manifold were 1.300", while the 2G has 1.4375" throttle bores. A little basic math and I came out with a total throttle bore area of 2.654 sq in for the stock Merc setup and 3.418 sq in for the 2G. That means the throttle bore area of a 2g is almost 30% larger than the Merc. Definitely a significant improvement.
Of course, this means that, although the 2G will bolt to the Merc manifold, it won't do a lot of good unless you bore the manifold out to the 2G size. I have done this on both aluminum (Canadian) and cast iron manifolds without a problem. I used a scrap 2G base as a guide and a tool called a "Rota-Broach" in my $89.95 Northern Tool benchtop drill press. The cast iron cut easily, not to mention the aluminum. Then again, if you want to get the cheapest performance increase from a flathead, have the heads milled for increased compression and optimum quench. This is not just a plain mill job, but requires some measuring before to determine the optimum cut (which may not be the same on each side) and some work with a die grinder after to get uniform clearance over the piston. Valve to head clearance is not a problem with mild cams. Last edited by tubman; 11-07-2020 at 01:49 PM. |
11-07-2020, 01:48 PM | #11 | |
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Re: 1901 teapot question
Quote:
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11-07-2020, 08:15 PM | #12 |
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Re: 1901 teapot question
Yes, almost 2 grand for the complete system. I wonder how conr=trolable the ignition is. Like vacuum advance under load.???
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11-08-2020, 05:15 PM | #13 |
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Re: 1901 teapot question
I've had pretty good luck with mine. Ethanol gas is a not good for these carbs. The varnish gums them up and they leak-alot! I think they get a bad rap. I had Sal Cicala rebuild mine and I runs great.
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11-09-2020, 11:17 AM | #14 | |
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Re: 1901 teapot question
Quote:
Sal |
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11-09-2020, 01:04 PM | #15 |
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Re: 1901 teapot question
If your car is stock, I would also suggest getting the "Teapot" redone. Going to anything else leads to linkage, fuel line, and air cleaner incompatibility. We're lucky to have an expert like Sal available. I would take advantage of his services, especially since you have two of these.
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11-13-2020, 11:59 AM | #16 |
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Re: 1901 teapot question
i would rather have a Coffee Pot...LOL
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