Go Back   The Ford Barn > General Discussion > Model A (1928-31)

Sponsored Links (Register now to hide all advertisements)

Reply
 
Thread Tools Display Modes
Old 01-29-2020, 11:54 PM   #1
verdirick
Senior Member
 
Join Date: Dec 2010
Location: Verdi, Nevada
Posts: 166
Default Dual updraft intake manifold install

Has anyone out there run a dual updraft Zenith carburetor setup, Synchronizing etc. Appreciate any feeback.
Thanks
Rick Jensen
verdirick is offline   Reply With Quote
Old 01-30-2020, 02:57 AM   #2
Synchro909
Senior Member
 
Synchro909's Avatar
 
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,472
Default Re: Dual updraft intake manifold install

I've never even seen such a setup. I very much doubt it could be fitted to a RHD car but because these cars are so forgiving, I wouldn't over think it. If the two carbs are individually good, I can't see synchronising as the be all and end all. In fact, I'd almost expect that at an idle, one is better than two.
__________________
I'm part of the only ever generation with an analogue childhood and a digital adulthood.
Synchro909 is offline   Reply With Quote
Sponsored Links (Register now to hide all advertisements)
Old 01-30-2020, 07:25 AM   #3
Hoogah
Senior Member
 
Hoogah's Avatar
 
Join Date: Feb 2014
Location: Warrnambool, Victoria, Australia
Posts: 800
Default Re: Dual updraft intake manifold install

Verdirick, if you do Facebook, there’s a group called “Model A Modified”. One of the members recently posted a photo of twin Zenith B carbs hooked up via a Vortex intake manifold. His name is Eddie Pond. Could be a starting point? Good luck!
Attached Images
File Type: jpg FD37AF44-92FE-4C8D-BFBD-B5B4015BC810.jpg (37.4 KB, 130 views)
Hoogah is offline   Reply With Quote
Old 01-30-2020, 08:15 AM   #4
miff
Senior Member
 
Join Date: Dec 2014
Posts: 138
Default Re: Dual updraft intake manifold install

i have a Vortex set up with twin model B carbs on my speedster.The carb next to the firewall . The fuel adjustment value is preset. The cold start and chocking is done with the front carb.My Voltex came with the linkage set up with it . I have been running this setup since 2015.Hope this helps
miff is offline   Reply With Quote
Old 01-30-2020, 08:41 AM   #5
alexiskai
Senior Member
 
alexiskai's Avatar
 
Join Date: Apr 2018
Location: Mebane NC
Posts: 2,332
Default Re: Dual updraft intake manifold install

It's an older thread, so a lot of the pics don't work, but there's good info here:
https://www.fordbarn.com/forum/showthread.php?p=740845
alexiskai is offline   Reply With Quote
Old 01-30-2020, 10:04 AM   #6
Sparky
Senior Member
 
Sparky's Avatar
 
Join Date: May 2010
Location: Rhode Island
Posts: 649
Default Re: Dual updraft intake manifold install

Sponsored Links (Register now to hide all advertisements)
I have the vortex with dual Zenith B carbs. In my experience synching was not a big deal, you just have to get the idle stops to match. I made no changes to the jet sizes.

My butt dyno says there is an increase in power. The only downside I found was it tends to be a bit cold blooded at startup so I need to get the engine warmed up before setting off, but it is great when up to temp.
Attached Images
File Type: jpg vortex.jpg (76.0 KB, 91 views)
Sparky is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Sponsored Links (Register now to hide all advertisements)


All times are GMT -5. The time now is 06:37 AM.