The Ford Barn

Betterlifenz · 10-29-2022, 10:27 PM

Does anyone know why Ford dropped the double venturi and went for the single? I have been told that it was due to threatened court action from another carb manufacturer(Stromberg maybe?) for stealing their design.
Also, is there any information on the performance differences between the two venturi types?

Fullraceflathead · 10-29-2022, 11:24 PM

I thought I read somewhere that it was a patent infringement, but I don't recall the actual place that I read it.
I believe Stromberg sued and Won and that was the beginning of Ford using Strombergs on all the V8 Flatheads and the end of Ford using Zenith’s.
The more I think about it I bought a book that tells all about it from one of the Model A vendors.
I think the fines were so large Zenith basically agreed to sellout to Stromberg in America.
I haven’t read that book in 7 or 8 years. Since I moved 4 years ago I think the book is packed away still. I probably bought it from Snyder’s.

Fullraceflathead · 10-30-2022, 12:07 AM

I think if you go to this web address you can actually download some of the reading or talks about the single and dual Venturi carburetor Patent infringement.

Betterlifenz · 10-30-2022, 01:22 AM

Thanks for that, but I'm sorry your attachment is too small to read. Can you please give me the links?

Fullraceflathead · 10-30-2022, 09:50 AM

https://casetext.com/case/stromberg-...zenith-detroit

Betterlifenz · 10-30-2022, 02:35 PM

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Thank you .

sinbad339 · 10-31-2022, 01:56 PM

Sorry if this hijacks the thread, but is there any difference in value between a dual and single venturi carb?

10-29-2022, 10:27 PM	#1
Betterlifenz Junior Member Join Date: Oct 2013 Location: Palmerston North New Zealand Posts: 12	Double venturi caburetor. Does anyone know why Ford dropped the double venturi and went for the single? I have been told that it was due to threatened court action from another carb manufacturer(Stromberg maybe?) for stealing their design. Also, is there any information on the performance differences between the two venturi types? Last edited by Betterlifenz; 10-30-2022 at 01:20 AM. Reason: spelling

10-29-2022, 11:24 PM	#2
Fullraceflathead Senior Member Join Date: May 2012 Location: Chillicothe, Missouri Posts: 1,198	Re: Double venturi caburetor. I thought I read somewhere that it was a patent infringement, but I don't recall the actual place that I read it. I believe Stromberg sued and Won and that was the beginning of Ford using Strombergs on all the V8 Flatheads and the end of Ford using Zenith’s. The more I think about it I bought a book that tells all about it from one of the Model A vendors. I think the fines were so large Zenith basically agreed to sellout to Stromberg in America. I haven’t read that book in 7 or 8 years. Since I moved 4 years ago I think the book is packed away still. I probably bought it from Snyder’s. __________________ "If I asked people what they wanted they would have said faster horses." -Henry Ford "Primitive technology is not a design flaw" 1928 Ford Model A Roadster Pickup 1930 Gordon Smith Air Compressor 1941 Willy's Pickup 1960 Thunderbird-For Sale 1964 Buick Riviera 2x4 425 1965 Pontiac GTO, 455 Super Duty 2004 Dodge Ram SRT-10, V-10 Viper 1977 Charger Jet Boat,460 Ford,Jacuzzi Jet Front Engine Nostalgia Dragster,Supercharged 296 "Fullrace Flathead" Ford Engine Build up on DVD ask Last edited by Fullraceflathead; 10-29-2022 at 11:33 PM.

10-30-2022, 01:22 AM	#4
Betterlifenz Junior Member Join Date: Oct 2013 Location: Palmerston North New Zealand Posts: 12	Re: Double venturi caburetor. Thanks for that, but I'm sorry your attachment is too small to read. Can you please give me the links?

10-30-2022, 09:50 AM	#5
Fullraceflathead Senior Member Join Date: May 2012 Location: Chillicothe, Missouri Posts: 1,198	Re: Double venturi caburetor. https://casetext.com/case/stromberg-...zenith-detroit __________________ "If I asked people what they wanted they would have said faster horses." -Henry Ford "Primitive technology is not a design flaw" 1928 Ford Model A Roadster Pickup 1930 Gordon Smith Air Compressor 1941 Willy's Pickup 1960 Thunderbird-For Sale 1964 Buick Riviera 2x4 425 1965 Pontiac GTO, 455 Super Duty 2004 Dodge Ram SRT-10, V-10 Viper 1977 Charger Jet Boat,460 Ford,Jacuzzi Jet Front Engine Nostalgia Dragster,Supercharged 296 "Fullrace Flathead" Ford Engine Build up on DVD ask

10-30-2022, 02:35 PM	#6
Betterlifenz Junior Member Join Date: Oct 2013 Location: Palmerston North New Zealand Posts: 12	Re: Double venturi caburetor. Sponsored Links (Register now to hide all advertisements) Thank you .

10-31-2022, 01:56 PM	#7
sinbad339 Junior Member Join Date: Dec 2017 Location: Painesville, OH Posts: 22	Re: Double venturi caburetor. Sorry if this hijacks the thread, but is there any difference in value between a dual and single venturi carb? __________________ "Our times are characterized by a perfection of means and a confusion of ends." - A. Einstein