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Whos running 4 carbs on a Flatty?

Discussion in 'The Hokey Ass Message Board' started by Scott Miller, Nov 21, 2006.

  1. Scott Miller
    Joined: Jun 2, 2005
    Posts: 779

    Scott Miller
    Member
    from Tampa, Fla

    I just got this intake in for my Flathead project and was wondering how many of you guys run 4 2's? Lets see some pictures too...:D
     

    Attached Files:

  2. seymour
    Joined: Jan 22, 2004
    Posts: 5,125

    seymour
    Member
    from PNW

    that's about 2 too many. :D
     
  3. Interesting manifold, but in reality I'm thinking it would be a****** on a street engine. Would require at least a 400jr cam. One of the most common problems with flatties is to over-carburett (?) them. It looks pretty cool though.
     
  4. Scott Miller
    Joined: Jun 2, 2005
    Posts: 779

    Scott Miller
    Member
    from Tampa, Fla

    The carbs will be jetted down to be suitable for street use. Stromberg 97 here on the HAMB will be doing those. He already did a fantastic job on the custom linkage!
     
  5. seymour
    Joined: Jan 22, 2004
    Posts: 5,125

    seymour
    Member
    from PNW

    jet down? with no plenum or balance tube of some sort, idling will be your worst problem I would think.
     
  6. chuckspeed
    Joined: Sep 13, 2005
    Posts: 1,643

    chuckspeed
    Member

    that's a really unusual 4 carb setup - waay better than an open plenum 4 carb setup. you can get a large multicarb setup to work if the velocity across the venturi is sufficient to generate an adequate vacuum signal - the best way is to dedicate a single venturi throat to each cylinder.

    where the hell didja get something like that? I'd LOVE to fart with it just to see how it worked!
     
  7. Kevin Lee
    Joined: Nov 12, 2001
    Posts: 7,672

    Kevin Lee
    Super Moderator
    Staff Member

    It looks like something designed recently to look like an old speed part. But that's just a hunch. Doesn't really matter either way because it's really really interesting. Neat.

    Wait... is that Lattin as in Hilborn streamliner recreator Jim Lattin?
     
  8. Kevin Lee
    Joined: Nov 12, 2001
    Posts: 7,672

    Kevin Lee
    Super Moderator
    Staff Member

    And the obvious question if it's a new part. Where is it available and how much?
     
  9. chuckspeed
    Joined: Sep 13, 2005
    Posts: 1,643

    chuckspeed
    Member

    I just peeped it off the Hamb; supposedly it's one of 8 made B4 the guy packed up the pattern and went away. If the pic is current - the shiny-ness of the machined areas along with the zinc plating sez it's a newer piece.
     
  10. chuckspeed
    Joined: Sep 13, 2005
    Posts: 1,643

    chuckspeed
    Member

    B4 Stu started making fuelie setups, he experimented with a multicarb setup like this; supposedly he had to run a different carb on the 1-2 ports to offset the reversion of the funky flattie firing order.

    That's about all I know...
     
  11. Kevin Lee
    Joined: Nov 12, 2001
    Posts: 7,672

    Kevin Lee
    Super Moderator
    Staff Member

    Also... what crank will be in this motor? If Ford or Merc, will the one/two carb be boosted to keep from starving the #1 cylinder? The big carb on the Hilborn car seemed HUGE... or did when I was checking out the intake at the HAMB drags.
     
  12. Scott Miller
    Joined: Jun 2, 2005
    Posts: 779

    Scott Miller
    Member
    from Tampa, Fla

    It's new as in within the last 20-30 years. This one has never heen used. I think it was either Jim or Bill Lattin. The story goes to say that he made 8 of these, kept 2 for himself and sold the rest for reimbursement for the casting cost. 2 were supposedly destroyed that were sold to the public since then.

    The mainfold caught my eye a few years ago when I say one either on ebay or the HAMB. So when this one came up for sale, I jumped at the opportunity. It's more for shock value/the sake of having it. I will run it on the flatty, if it isn't what I want performance wise, I'll try another.

     
  13. THey are bing re-popped. I saw them for sale recently before finding a very very sweet Harrell three pot.

    I'll try and dig up the website that was doing them.

    Danny
     
  14. Scott Miller
    Joined: Jun 2, 2005
    Posts: 779

    Scott Miller
    Member
    from Tampa, Fla

    Thanks, It would be very interesting to check that out.


    Nobody running 4 carbs? I can't be the only one crazy enough to try it...?
     
  15. paulie_boy13
    Joined: Mar 1, 2005
    Posts: 269

    paulie_boy13
    Member
    from NC

    I know Tony Baron is repopping the Tatterfield-Baron 4 carb intake but they are different than these.
     
  16. Cyclone Kevin
    Joined: Apr 15, 2002
    Posts: 4,253

    Cyclone Kevin
    Alliance Vendor

    Jim still has the pattern and makes em periodically. I have no idea how they'd run on the street, supposedly they were for full on deal.
    The one that Stu Hilborn ran was not designed by him, but by Eddie Miller. That is precisely why it has the Miller decal on it in most pics of it.
    Eddie's son Jim duplicated this very set up for the restoration/duplication/recreation of Bill Warths/Stu Hillborns original.
     
  17. side_valve
    Joined: Sep 22, 2002
    Posts: 834

    side_valve
    Alliance Vendor

    I hope to ... someday... weiand intake w/ big logo 81s

    [​IMG]
     
  18. Sooo...

    Not to take over this thread, but whats the skinny runny 3x94's on a flathead? Can it be done reliably?

    Danny
     
  19. Leebo!
    Joined: Nov 22, 2005
    Posts: 800

    Leebo!
    Member
    from Yale OK

  20. Jager,

    Thats the website I saw.

    Danny
     
  21. Leebo!
    Joined: Nov 22, 2005
    Posts: 800

    Leebo!
    Member
    from Yale OK

    I dont have a flatty, just thought that manifold was kinda different.
     
  22. strombergs97
    Joined: May 22, 2006
    Posts: 1,888

    strombergs97
    Member
    from California

    Hello..The copy of Lattin is new..It says Gear Drive on it..The one that Scott has is original..
    Yes, Scott, 4, 97s will work, remember, what goes in must get out, headers.......
    Enjoy...
     
  23. Well, 4x2 will work on a street flathead if you have a killer engine. The real problem with this intake will be no plenum chamber with this style carburetion. To run an unbalanced intake set-up, you need to be able to tune each indivudual intake runner. You'd need something along the lines of Weber carbs that were designed to run like that.

    I'm not saying you can't get this to work, it will. As a matter of fact, for full out throttle it will work just fine, but expect to have a battle on your hands to get this to run nice for you at idle or anything up to more than 40% throttle. It's just the nature of this style intake.

    Matt
     
  24. re49
    Joined: Jun 7, 2003
    Posts: 196

    re49
    Member

    No bidders yet, starts at $750


    eBay Motors: RARE NOS LATTIN FOUR DEUCE FLATHEAD INTAKE MANIFOLD (item 150064945240 end time Dec-03-06 08:28:39 PST)
     
  25. Flatdog
    Joined: Jan 31, 2003
    Posts: 1,285

    Flatdog
    Member Emeritus

    I have run 4 carbs in the past.I am running 4carb(injection) now over a blower right now.PM me if you want to talk.
     
  26. Mr. Mac
    Joined: May 16, 2005
    Posts: 1,971

    Mr. Mac
    Member

    If this wont work on the street for ya,The Ram Rods would like to try it on there flatty powered Hamb Dragster,We have lot's of cam.
     
  27. BigMikeC
    Joined: Apr 18, 2006
    Posts: 451

    BigMikeC
    Member

    No problem. You just have to shave a little off the front of two carbs, as its a little tight for space.
     

    Attached Files:

  28. I think that 81's will actually be a better setup than 97's for most any street engine. It will be lots of fun trying to get them in sync - and keeping them in sync. I don't know the runner layout of the Weiand or the Edelbrock, but I wonder if a pregressive linkage is possible.

    I've picked up enough 81 cores for a special 6-carb blower setup that I'm putting together this winter for my 4-71 blown flathead. I'm going to run the center two off-idle, then bring in the outer four in a progressive manner. Of course I have no clue how it will run until I get the motor put together a run it a bit.
     
  29. Running 4 carbs without any mixing plenum can be done - but you'll have lots of fun getting 4 carbs to run exactly the same. I bet on most street engines, that 4 stromberg 81's would be better . . . but we all know how much they cost (even as rough cores).

    I think the most important thing will be trying to "match" 4 carbs. If you have lots of $$$ - then the new strombergs would be the best place to start. Otherwise, I'd try to replace/buy matched sets of emulsion tubes, jets, oversize throttle shaft, new throttle plates, floats, etc.. If you guy everything the same - will probably have the best chance to get it running right. Also - you might try to work on two carbs at a time - by using a regular plenum 2 deuce manifold -- to get two carbs in sync and running as close as possible.

    If you're running it on the street, then getting it to idle and run smoothly (and keeping it that way) will be the biggest challange.

    Keep us posted, would love to hear how it turns out.
     
  30. Scott Miller
    Joined: Jun 2, 2005
    Posts: 779

    Scott Miller
    Member
    from Tampa, Fla

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