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Technical Basic Intake Manifold Construction Question

Discussion in 'The Hokey Ass Message Board' started by LeoH, Dec 14, 2015.

  1. LeoH
    Joined: Nov 4, 2011
    Posts: 462

    LeoH
    Member
    from Reno, NV

    Well, basic in the sense that it's part of building your own multi-carb manifold. I've a single barrel carb manifold for a flathead Six, with the heat riser built into the intake manifold.
    Although I've seen many a homemade multi-carb intake manifold build, what do people do to adjust and compensate for not having that air pre-heat function originally designed? For the most part, from what I can see, it's not replaced, but I would think something would need to take the place of the pre-heat function.
    I don't know, so I'm asking.
     
  2. seb fontana
    Joined: Sep 1, 2005
    Posts: 9,252

    seb fontana
    Member
    from ct

    Since you don't see much cold temps it won't be much of a problem for you...Here in CT where it gets cold winter DD is a pain the ***, had to box the intake in to the header to get some heat..
     
    loudbang likes this.
  3. squirrel
    Joined: Sep 23, 2004
    Posts: 60,368

    squirrel
    ALLIANCE MEMBER

    it gets pretty chilly in Reno. I'd see about adding some type of heat to it, if possible.


    reno.jpg
     
    LeoH likes this.
  4. Jalopy Joker
    Joined: Sep 3, 2006
    Posts: 34,457

    Jalopy Joker
    Member

    post a pic of manifold/motor. heat risers that I have seen either direct heat to carb choke, or exhaust g***es going through intake manifold. do not directly heat intake manifold or carb. gas is flammable.
     
    Last edited: Dec 14, 2015
    LeoH likes this.
  5. ol'stinky
    Joined: Oct 3, 2010
    Posts: 383

    ol'stinky
    Member
    from New Jersey

    Aftermarket 6 cylinder intakes such as Edmunds have a p***age way that allows engine coolant to run through and heat the manifold. While that's not really for pre heating it might help a little in the regard.
     
    LeoH likes this.
  6. gimpyshotrods
    Joined: May 20, 2009
    Posts: 24,585

    gimpyshotrods
    ALLIANCE MEMBER

    Shown from the underside. See the hose ******s for the heater hose?

    [​IMG]
    And Reno gets colder than Connecticut.
     
    LeoH likes this.
  7. LeoH
    Joined: Nov 4, 2011
    Posts: 462

    LeoH
    Member
    from Reno, NV

    We are definitely cold. Finally this year, but winter is chill in' right now!
    We
     
  8. LeoH
    Joined: Nov 4, 2011
    Posts: 462

    LeoH
    Member
    from Reno, NV

    Thanks for the tips. I figured there were ways, I just hadn't noticed the heater tricks on the photos I've seen before. Haven't really studied a multi carb manifold up close before.
     
  9. G-son
    Joined: Dec 19, 2012
    Posts: 1,507

    G-son
    Member
    from Sweden

    Let he air cleaner **** hot air from a shroud around the exhaust manifold. Use during winter, remove for summer driving.
     
  10. stimpy
    Joined: Apr 16, 2006
    Posts: 3,546

    stimpy

    you could make a small runner ( stainless pipe ) and direct some exhaust flow thru it to start it up . but to keep the manifold /carb from Icing I would water heat it as the same as the edmunds . just use the water pump byp*** hose to get the water before the thermostat or use the heater line off the head to the heater . the water heats up faster than you think ( 2-3 minutes ) .
     

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