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Technical Flathead long ram intake manifold

Discussion in 'Traditional Hot Rods' started by Deuce Man, Feb 27, 2017.

  1. Deuce Man
    Joined: Jul 31, 2015
    Posts: 199

    Deuce Man

    Although I have been a flathead guy since 1962 when I bought my first driver car, a 59 AB powered 39 ford. Over the years I have gone astray and fooled around with other modes of propulsion, but I have always managed to come back to my beloved flatheads. One of my affairs was with a 54 olds super 88 that was given to my buddy and myself because it wouldn't pass NY state inspection. We stripped everything we could out of it and made it a drag car . I don't remember exactly what class we ran, but it was pretty far down the alphabet! Out closest track was Islip Speedway which was an oval track and a 1/8th mile drag strip. Lot of fun! There was one particular car that has stuck in my mind for all these years. It was a Flathead powered T bucked modified roadster, or altered?. This was not someone's weekend warrior street car, it was an all business race car. The best most memorable part was the intake manifold on top of the flathead. It looked just like an early sixties Chrysler long ram, cross ram, manifold. If my memory serves me well, the carbs were about three feet apart. This thing ran like the proverbial 'hammers of H--L". The sound was like nothing else at the track. Now getting to my reason for writing this long winded post. Does anyone remember this car? or better yet have any pictures? Someone told me it was owned and built by Billy Krauss from Sayville NY. I have looked over a lot of flatheads over the years, but have never seen this type of induction on one. What do you guys think? Have we been missing something? Thanks Rich
     
    dana barlow likes this.
  2. I think you were drunk or stoned..
     
  3. tubman
    Joined: May 16, 2007
    Posts: 5,201

    tubman
    ALLIANCE MEMBER

    "Anybody who remembers the Sixties wasn't there." Seriously, I hope it was real and someone comes up with some more information. Sounds interesting.
     
  4. revkev6
    Joined: Jun 13, 2006
    Posts: 3,351

    revkev6
    Member
    from ma

    ive seen pictures of a flathead with an intake like you describe.. it was made from welded tubing.
     
    dana barlow likes this.

  5. revkev6
    Joined: Jun 13, 2006
    Posts: 3,351

    revkev6
    Member
    from ma

  6. drtrcrV-8
    Joined: Jan 6, 2013
    Posts: 1,324

    drtrcrV-8
    Member

    About 15 +/- years ago at the Turlock Swap(CA) there was a similar setup ,only with side draft carbs(maybe SU's or other Euro/Asian carb?) Wasn't attracting much attention, other than getting noticed by a couple of us 'Flathead Junkies'' as it was just thrown in with a bunch of other 'rusty junk' from an obvious "garage clean-out".
     
  7. Deuce Man
    Joined: Jul 31, 2015
    Posts: 199

    Deuce Man

    Now we're getting someplace! Rich
     
  8. christmas tree
    Joined: Dec 7, 2009
    Posts: 337

    christmas tree
    Member

    revkev6 I have fabed a lot of parts and there,s a lot of work there.
     
  9. Deuce Man
    Joined: Jul 31, 2015
    Posts: 199

    Deuce Man

    Revkev,Thanks for the pictures, see guys I wasn't in an LSD induced dream! there were really some guys who tried to use the Chrysler long ram concept on their flatheads. The one I saw was hand fabricated and I am thinking it was aluminum. I also remember the runners being a little bit longer Might be worth trying today. You definitely wont see too many more like that running around! Rich.
     
  10. drtrcrV-8
    Joined: Jan 6, 2013
    Posts: 1,324

    drtrcrV-8
    Member

    Someone wanting to do this might want to read Stu Hilborn's story of his development of fuel injection, especially that he used different size carbs to feed different port-pairs when he was experimenting on a flathead. Side note: One of his early units resembled a much later "Man-A-Fre" manifold for a SBC.
     
  11. Bandit Billy
    Joined: Sep 16, 2014
    Posts: 6,863

    Bandit Billy
    ALLIANCE MEMBER

    Not to be a nattering nabob of negativity, but with one carb feeding two cylinders, aren't you asking for issues? All four of those 2 bbls are going to have to be perfectly sync'd, starve one you got trouble coming. Multi carbs on a blower, tunnel ram, open plenum intake or some cross rams balance the mixture. I think this set up would increase my alcohol intake (my personal consumption, not the engines to be clear). Or do you think that I am concerned over nothing? To be perfectly clear it does looks ridiculously cool!
     
    Runnin shine likes this.
  12. Relic Stew
    Joined: Apr 17, 2005
    Posts: 1,127

    Relic Stew
    Member
    from Wisconsin

    Probably would work better if it paired cylinders that were 360° apart in the firing order.
    1-6, 2-8, 3-5, 4-7. It would look more like a bundle of snakes though.
    As-is, #1 and #2 cylinders have overlapping intake strokes. #1 intake valve opens when #2 is in the middle of it's intake stroke. With a hot cam, it could pull a lot of exhaust into the intake manifold. The other pairings shouldn't be bad.
     
    Last edited: Feb 28, 2017
  13. revkev6
    Joined: Jun 13, 2006
    Posts: 3,351

    revkev6
    Member
    from ma

    Pretty sure that is what drtrcrv8 was getting at above. Hilborn had a 3 I barrel intake that fed 3,4 5,6 and 7,8 with one barrel carbs and 1,2 ran a bigger two barrel

    Sent from my SM-G920V using The H.A.M.B. mobile app
     
    Ragmanray likes this.
  14. tubman
    Joined: May 16, 2007
    Posts: 5,201

    tubman
    ALLIANCE MEMBER

    Could you please clarify for me how this could happen? The intake and exhaust passages are separated from each other (except in the actual cylinder itself) for each cylinder and certainly between cylinders. I am having a hard time visualizing this; could you explain a little further?
     
  15. jvpolvere1
    Joined: Aug 19, 2016
    Posts: 176

    jvpolvere1

    If it was an LSD induced dream, maybe your suffering a relapse, and only imaging seeing that picture.

    Sent from my SM-T377V using The H.A.M.B. mobile app
     
    LOU WELLS and Bandit Billy like this.
  16. drtrcrV-8
    Joined: Jan 6, 2013
    Posts: 1,324

    drtrcrV-8
    Member

    Thanks revkev6; At least YOU knew exactly where I was going! LOL! My fuzzy memory says he was running 3 Stromberg 81's or 97's(maybe?), & one much bigger 2bbl Stromberg, (possibly aircraft?), but, like I said :I read it a long time ago....
     
  17. revkev6
    Joined: Jun 13, 2006
    Posts: 3,351

    revkev6
    Member
    from ma

    Here is stu's intake. 3 one barrels and a single two barrel.

    Stuart-hilborn-lakester-streamliner-5.jpg

    Sent from my SM-G920V using The H.A.M.B. mobile app
     
  18. drtrcrV-8
    Joined: Jan 6, 2013
    Posts: 1,324

    drtrcrV-8
    Member

    I warned you my memory was....what were we talking about??
     
    falcongeorge and Bandit Billy like this.
  19. Relic Stew
    Joined: Apr 17, 2005
    Posts: 1,127

    Relic Stew
    Member
    from Wisconsin

    Valve overlap. The intake valve opens before the exhaust closes. Cams with more duration have more overlap. If intake manifold pressure is lower than cylinder pressure, exhaust is pulled back into the cylinder and possibly up into the intake runner. This exhaust dilutes the mixture drawn in as the intake stroke continues. This is what causes the lopey idle with a long duration cam.

    With the #1 and #2 cylinders connected on one carb, #2 is mid intake stroke while #1 is in overlap. Mid stroke is where the draw is strongest. If the carb has any restriction, or inadequate flow, there will be vacuum through the #1 cylinder to the exhaust system. A standard dual plane intake splits up the cylinders so there is very little overlap of intake strokes. A single plane intake will have the overlap, but the volume is much larger than the 2 cylinder long ram pictured, so the effect is reduced. Individual runner systems with throttle plates close to the ports have the least issue with exhaust reversion.
     

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