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Technical Weiand WC4D Experiences

Discussion in 'The Hokey Ass Message Board' started by Duke, Oct 10, 2022.

  1. Duke
    Joined: Mar 21, 2001
    Posts: 828

    Duke
    Member

    I am getting to point in my build when I have to decide on my carburetor and intake combination.
    I have had the Weiand WC4D for a long time and always wanted to put it on my A coupe. The engine is a mild 327 hooked to a turbo 350.
    For guys that have run these- how did it turn out. Lots of old threads on them, but not lots on driving them.
    Four 97s set up progressively would be the plan or maybe just two of them?
    Should I spring for the new English 97s? Seems to be lots on good reviews on them.

    Thank you
     
  2. The carb layout in that intake does not work well in a progressive linkage set up. You will definitely have a few lean cylinders and when you open it up it will probably fall on its face. I’ve only ever driven one on a 283 but a 327 shouldn’t be much different. I certainly wouldn’t want it on anything bigger than that.
    A straight up linkage with carbs jetted down a bit will give you the best result. Quality linkage is key with this setup. Stromberg sells a very nice setup that is the only way to go in my opinion.
    The WC4D is the best 4 carb intake for the street hands down over an Offy or man a fre. Set up properly they drive great but expect a lot time in getting it dialed in properly.
     
  3. hrm2k
    Joined: Oct 2, 2007
    Posts: 4,810

    hrm2k
    ALLIANCE MEMBER

    Hang on, I’ll let you know in a couple of months. My 283 is at the machine shop now along with my manifold and carbs . It is going in a fad T with a 5 speed and 3:55 jag rear. D7011147-CA6E-4C46-AD0B-FDE62377E222.jpeg

    I have had 2 very bad 4 deuce experiences…..on the Edelbrock 360. When my engine went into the machine shop, they agreed to everything being dialed in correctly before I pick it up……I can hardly wait

    For my Maryland friends, Jim Bunting of JB Machine will be doing the carb work. He is our local 97 Guru….almost as old as the carb 97 number
     
    Last edited: Oct 11, 2022
  4. Duke
    Joined: Mar 21, 2001
    Posts: 828

    Duke
    Member

    Thank you, I thought this was the only 4 carb intake that can run progressively.
    Hrm2k- is that an English Stromberg linkage?
    Thanks
     

  5. hrm2k
    Joined: Oct 2, 2007
    Posts: 4,810

    hrm2k
    ALLIANCE MEMBER

    all of it came just as you see it. I bought it from that dreamy guy @Moriarity . Maybe he would know
     
    lothiandon1940 likes this.
  6. Moriarity
    Joined: Apr 11, 2001
    Posts: 30,337

    Moriarity
    SUPER MODERATOR
    Staff Member

    That is straight linkage that I made. I would rather run straight linkage these days to keep the fuel in each carb fresh...
     
  7. Pat
    Joined: Jan 6, 2002
    Posts: 186

    Pat
    Member
    from Felton Ca.

    I set up a Man-a-fre. 4x2 for a friend.(Like Milner’s coupe). Used a uni sync. Linkage has to be perfect. No flexing. All carbs have to be matched even. Took a little time but ran great!
     
  8. Tim
    Joined: Mar 2, 2001
    Posts: 16,960

    Tim
    Member
    from KCMO

    @TexasSpeed just drove his from forth worth Texas to Bartlesville Oklahoma. May have some thoughts

    @Moriarity does your vet have this or a man a fre on it?

    had a buddy years ago that got his man a fre dialed in and it was a very sharp responsive set up. Dang near direct runner intake so it’s gonna take a minute to get it right
     
    lothiandon1940 likes this.
  9. Moriarity
    Joined: Apr 11, 2001
    Posts: 30,337

    Moriarity
    SUPER MODERATOR
    Staff Member

    My vette had a man a fre on it
     
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  10. Corn Fed
    Joined: May 16, 2002
    Posts: 3,269

    Corn Fed
    Member

    Maybe it's just me, but I've never had much luck running multiple carbs on a car with an automatic. But not any problems when used with a manual. Being able to drop them into neutral at a light helps with the idle. I had 3 Strombergs on a Y-block with an auto in my 57 Ford. Idled like crap. Took it off and put it on my 29 PU with a Y-block 4 speed and without touching anything it ran great.
    I've used both straight and progressive linkages with good results.
     
    -Brent- likes this.
  11. Duke
    Joined: Mar 21, 2001
    Posts: 828

    Duke
    Member

    Looks like the automatic could be an issue. Would a straight linkage running on a front and back carb (block 2) starve the cylinders?
    Thanks
     
  12. Pat
    Joined: Jan 6, 2002
    Posts: 186

    Pat
    Member
    from Felton Ca.

    I would definitely run the carbs with straight linkage. Not progressive. Not sure if the Weiand has balance ports. But I would set it up like it didn’t.
     
    hrm2k likes this.
  13. hrm2k
    Joined: Oct 2, 2007
    Posts: 4,810

    hrm2k
    ALLIANCE MEMBER

    I had 3 Stromberg 48’s on the 350 in my coupe with an automatic with progressive linkage. It wasn’t a road burner but not that bad either
     
    lothiandon1940 likes this.
  14. Duke
    Joined: Mar 21, 2001
    Posts: 828

    Duke
    Member

    @Moriarity did you make the extended shafts and support?
    Would it be lean if two carbs were blocked off?
    Thanks
     
  15. Moriarity
    Joined: Apr 11, 2001
    Posts: 30,337

    Moriarity
    SUPER MODERATOR
    Staff Member

    I made the support but did not make the extensions. Stromberg 97's are only 155 cfm each so 4 of them are 620 cfm. why not run all of em? I have 4 97's on my internally stock 49 Cad 331 in my 40 with straight linkage. I jetted it at 41 and it runs great, idles as smooth as a gravy sandwich at 600 rpms, has great throttle response and gets about 15 mpg around town. whats not to like? 401.JPG
     
  16. Duke
    Joined: Mar 21, 2001
    Posts: 828

    Duke
    Member

    Wow, that is a nice engine! I am just worried about feeding too much fuel. Who made the extensions? Do you have a bearing or bushing in the support arms? Do you have a part number for the bearing or bushing? Thank you!
     
  17. Moriarity
    Joined: Apr 11, 2001
    Posts: 30,337

    Moriarity
    SUPER MODERATOR
    Staff Member

    The extensions are old, I believe they were Eelco items long since extinct. They should be easy to make on a lathe though. I made the support and I made the bushings from round nylon stock that I had.
     
    hrm2k likes this.
  18. Duke
    Joined: Mar 21, 2001
    Posts: 828

    Duke
    Member

    Thank you!
     
    hrm2k and Moriarity like this.
  19. don't worry about to much fuel, that wont be a problem, you almost always have to jet down running multiple carbs. but running progressive you will not have the air volume needed to properly supply that engine. Remember when this intake was designed the largest small block was a 283. If you set it up progressive, the cylinders closest to the carbs will get more fuel and and the others will be lean. Yes you can do progressive on 3 2 barrels, But I have only ever had good success with that on Rochester 2GC's. With 97's or 94's they always ran better with straight linkage.
     
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  20. Tim
    Joined: Mar 2, 2001
    Posts: 16,960

    Tim
    Member
    from KCMO

    Found this diagram of the progressive linkage that should work best AB24EDBF-8332-4DD2-AB14-A3491FD267C7.jpeg ;)
     
    hrm2k likes this.
  21. 51box
    Joined: Aug 31, 2005
    Posts: 1,096

    51box
    Member
    from MA

    If you use original carbs the most important thing is to make sure the shaft and bushings are not worn out and the blades fit the bore correctly. If they don’t, sending them to someone like 97express to get the bases refurbished is money well spent.
    I can tell you from setting up multiple carb intakes with 97’s to just start with them completely stock with straight linkage and go from there. You’ll be surprised how well it will behave with them properly set up.
     
  22. Deuce Daddy Don
    Joined: Apr 27, 2008
    Posts: 5,542

    Deuce Daddy Don
    ALLIANCE MEMBER

    Phil Weiand gave me an "accelerator" 4bbl manifold, still running at 300,000 happy miles!
     
    vtx1800 and bchctybob like this.
  23. Duke
    Joined: Mar 21, 2001
    Posts: 828

    Duke
    Member

    Thank you for all the help. Need to decide on the new vs rebuilt and get this thing done.
     
  24. roddering
    Joined: Feb 18, 2008
    Posts: 244

    roddering
    Member
    from Arizona

    Hey guys, who make the linkage for this setup with the Holley 94s?
    I want to put this on my motor and have the intake and rebuilt matching 94s.
    Just need the linkage
     
  25. lonewolf
    Joined: Sep 2, 2006
    Posts: 392

    lonewolf
    Member

    Not true weiand even made progressive linkage for it. MANY people have run progressive linkage with great success. Most setup the 2 middle carbs as primary carbs and the outer carbs kick In at whatever throttle position that you set the linkage up for
     
  26. lonewolf
    Joined: Sep 2, 2006
    Posts: 392

    lonewolf
    Member

    Vintage speed in Florida
     
  27. roddering
    Joined: Feb 18, 2008
    Posts: 244

    roddering
    Member
    from Arizona

    Yeah, I left a message for Charlie. I guess he has been sick
     
  28. hrm2k
    Joined: Oct 2, 2007
    Posts: 4,810

    hrm2k
    ALLIANCE MEMBER

    Not in the car yet, but ……….
     
  29. roddering
    Joined: Feb 18, 2008
    Posts: 244

    roddering
    Member
    from Arizona

  30. Tim
    Joined: Mar 2, 2001
    Posts: 16,960

    Tim
    Member
    from KCMO

    BigJoeArt likes this.

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