Model A Engine and Dual Carbs

[CarlG]

My BIL says it's JD Green or it isn't green.

[JDupuis]

Some have said that, Red and Green, is fine at Christmas.
But, Orange is all year long.
More farm boy stuff. . Jeff

[California Travieso]

Originally Posted by emf

I have a burns dual intake and run 2 81's. I also have a Brumfield 6:1 head, stipe cam and all of this in a Model B engine. I'm also running a mechanical fuel pump. I have had excellent results with main jets of .036, idle jets of .028, and a #71 power valve. I was told that 97's would be too much carburetor, but there are certainly those here on the Barn that are doing just a well. Couldn't be happier...

Frank

Yea, two 97's are overkill, but two carbs (81's) are cooler than one. It'll give you as much additional HP as painting it red. In fact, three carbs is even cooler yet. I think secrets of speed sell a progressive linkage that lets you cruise on one and kicks the other(s) in when you accelerate.

David Serrano

[alvisoroadsters]

Originally Posted by California Travieso

Yea, two 97's are overkill, but two carbs (81's) are cooler than one. It'll give you as much additional HP as painting it red. In fact, three carbs is even cooler yet. I think secrets of speed sell a progressive linkage that lets you cruise on one and kicks the other(s) in when you accelerate.

David Serrano

That's what I was thinking too, a progressive seems like the better of both worlds, as long as the manifold design doesn't affect it

[George Miller]

Originally Posted by JDupuis

Some have said that, Red and Green, is fine at Christmas.
But, Orange is all year long.
More farm boy stuff. . Jeff

Yes I had one of those also. A WD it was a tuff one.
Along with 4 JDs 720, A, 2010, and a H. They all had there place on our Farm.

As far as two carbs on a stock engine it will probably be more trouble than it is worth.
Any of the two barrels you talked about should work fine for one carb.

[Synchro909]

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Where do these Stromberg carbies you guys are talking about come from?
I run an Australian Stomberg but it is different from the ones I see pictured.

[denis4x4]

Here's a point to consider: I ran a pair of original 97's that were rebuilt by the gurus who sometimes post here. Performance sucked. Bit the bullet and installed a pair on the "new" English 97's and great performance. So, the question is are the new 97's better than the the original?

For the record, switched from a pair of 97's to the Weber 32/36 because it's easier to tune for different attitudes.

[CarlG]

Originally Posted by Synchro909

Where do these Stromberg carbies you guys are talking about come from?
I run an Australian Stomberg but it is different from the ones I see pictured.

http://www.stromberg-97.com/

Originally Posted by denis4x4

... installed a pair on the "new" English 97's and great performance. So, the question is are the new 97's better than the the original?

For the record, switched from a pair of 97's to the Weber 32/36 because it's easier to tune for different attitudes.

My engine builder reccommended the Stromberg 97 over the Weber, so I bought the new English 97 and sold my Webers. Now you have both sides.

[California Travieso]

Originally Posted by alvisoroadsters

That's what I was thinking too, a progressive seems like the better of both worlds, as long as the manifold design doesn't affect it

You should buy Jim Brierley's book. He's the guru of hot 4 Bangers. I couldn't wait get it in the mail so I drove down to Temecula to pick it up. By the way, is that Alviso in the Bay Area?

David Serrano

[Synchro909]

Originally Posted by CarlG

http://www.stromberg-97.com/



My engine builder reccommended the Stromberg 97 over the Weber, so I bought the new English 97 and sold my Webers. Now you have both sides.

Now I'm really confused - English Stromberg as well.
What cars were the 97's fitted to? (Assuming they were)
The Australian Strombergs I use have exactly the same mounting flange, bore diameter and bolt spacing as the original Model A Carbs, only they are downdraft. The Holden engine they came from, required a little more air at max revs than a Model A at 3,000 rpm so they are ideal.

[CarlG]

Originally Posted by Synchro909

Now I'm really confused - English Stromberg as well. ....

I think that the "English" Strombergs are actually US models, just that manufacturing was moved from the US to the UK. I don't have access to mine at the present, but I believe that it is molded into the casting the original US address of Stromberg. Parts & pieces are suppose to be interchangeable with the original Strombergs.

As far as their original usage, my understanding is that many of the early Ford v8 engines came equipped with them.

[denis4x4]

Carl....were those Webers side draft or the progressive two barrel?

[CarlG]

Originally Posted by denis4x4

Carl....were those Webers side draft or the progressive two barrel?

Progressive 2-barrel. More than likely, same as yours.

[Tom Wesenberg]

Originally Posted by CarlG

My BIL says it's JD Green or it isn't green.

Is my 29 Tudor green close enough to be JD green?

I call it puke green, but at least the metal under the paint is very nice.

BTW, if you ever get a chance to ride in a Ford Tri Motor, go for it.

[CarlG]

Originally Posted by Tom Wesenberg

Is my 29 Tudor green close enough to be JD green?

I call it puke green, but at least the metal under the paint is very nice.

BTW, if you ever get a chance to ride in a Ford Tri Motor, go for it.

Not even close! One of the guys in our club has 31 Tudor that is genuine JD Green, even has the yellow wheels to complete the illusion. He bought it from someone in the farm country of the midwest and decided to leave it that way.

As far as a Tri-Motor, closest I got was to step into the cabin of one at an air show at Boeing Field in Seattle years ago. Did get to see it fly, but that's all. As a kid, I was totally enamored with that airplane.

[40 Deluxe]

Originally Posted by JDupuis

Some have said that, Red and Green, is fine at Christmas.
But, Orange is all year long.
More farm boy stuff. . Jeff

Orange? You mean the tractors with the turkey roost?

[Hasler55]

I have a set up with a dual updraft carbs using a pair of Marvel Schebler carbs.....

[Dodge]

We had one that two 97's on it that was a little much. It ran much better with one
97, but we wanted it to look cool. We plugged one side of each carburetor and it ran
it with just two of the barrels working.
Looked cool and ran great.

We did this on a flathead V-8 with a 4x2 manifold that everyone said would never work,
they were amazed at how well it ran, but didn't know it was running only on 4 holes instead of 8.

[Railcarmover]

if it dont have tracks it aint shit..anyone run two weber ICTS? wait, single weber ICT flows at 82 CFM..two makes 164..looks like Im in business

[BILL WILLIAMSON]

We had a Caterpillar-22, lucky that we even made it RUN! They're like a HOT-TRACKS" TOY--LOL----BUT, thet Dude would pull a 15 Foot Tandem Disc!
Had the trip rope tied to the bare seat back springs, on a turn, hitch pin worked out, yanked out the whole seat back & I think I SOILED myself???
Bill Clatter