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Hot Rods The No Frame Model A Modified

Discussion in 'The Hokey Ass Message Board' started by rottenleonard, Sep 22, 2017.

  1. Nostrebor
    Joined: Jun 25, 2014
    Posts: 1,278

    Nostrebor
    Member

    You do not disappoint.

    One of my guilty pleasures is taking a mixture of OEM parts and utilizing them in a way never intended. This brings that to a level that I am not qualified to do, but really enjoy watching anyway. Thanks for sharing this work with us!
     
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  2. 1-SHOT
    Joined: Sep 23, 2014
    Posts: 2,693

    1-SHOT
    Member
    from Denton

    I am surprised you used a key way on your stub axles and not splined
     
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  3. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,993

    rottenleonard
    Member

    If this fails that will probably be the next try:D
     
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  4. Pretty cool so far. Been playing catch up online and glad I finally saw this.
     
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  5. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,993

    rottenleonard
    Member

    Seemed to much like summer to cut the car up, so i back burnered the rear end in favor of some other upgrades. When the engine warmed up it was not idle down and seemed to have a vacuum leak, I suspected that the manifold wasn't real flat and the aluminum gasket was leaking.
    So I pulled manifolds and machined them flat ending with a little fine-tuning on some sandpaper

    20200616_140020.jpg 20200616_142548.jpg

    The other major problem was the homemade throttle cables, they just didn't work smooth enough to shift the non sincro trans effectively.

    I had a box of 1/4 rod ends, picked up some stainless round stock and went at a new design. I like the mechanical look it took on. 20200616_155843.jpg

    20200616_162241.jpg 20200721_130544.jpg

    20200616_162241.jpg
    20200721_104506.jpg

    The choke will be ran off the column lever, I can't remember if it controlled the timing or throttle on the Model A originally.
    20200721_124643.jpg
    20200721_133930.jpg
    20200721_145216.jpg
    20200721_150136.jpg
    20200721_104512.jpg 20200721_161402.jpg 20200721_161402.jpg 20200721_154036.jpg 20200721_154050.jpg
     

    Attached Files:

  6. 1-SHOT
    Joined: Sep 23, 2014
    Posts: 2,693

    1-SHOT
    Member
    from Denton

    Spark on the left Throttle on the right is the way they were originally built A & T were the same.
    I like the throttle and choke controls there look period perfect. Frank
     
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  7. drtrcrV-8
    Joined: Jan 6, 2013
    Posts: 1,707

    drtrcrV-8
    Member

    VERY NICE WORK!!! Thanks for the update!
     
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  8. Stogy and Thor1 like this.
  9. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,993

    rottenleonard
    Member

    I should probably know that.....but i don't 15954330847765590894757635522473.jpg
     
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  10. guitarguy
    Joined: May 26, 2008
    Posts: 650

    guitarguy
    Member

    No Worries, a quick search yielded this:

    upload_2020-7-22_18-42-18.png
     
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  11. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,993

    rottenleonard
    Member

    So what does the 38 or 44 refer to?
     
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  12. Dick Stevens
    Joined: Aug 7, 2012
    Posts: 3,710

    Dick Stevens
    Member

    Maybe that is 38 mm or 44 mm throttle bore?
     
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  13. Ebbsspeed
    Joined: Nov 11, 2005
    Posts: 6,251

    Ebbsspeed
    ALLIANCE MEMBER

    Yep, Dick has it right.
     
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  14. 38's I reckon. I'm sure 44's have a four bolt flange to the manifold.
     
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  15. 97
    Joined: May 18, 2005
    Posts: 1,982

    97
    Member

    The 38 and 44 are just the metric equivalents of the imperial measurements. So 38.1mm is approximately 1 1/2 inches and 44 ( 44.4) is 13/4.
    SU measures the carbs as 1" plus a number of eighths. So a H4 or HS4 or HD 4 etc is a 1 1/2 inch carb and a 6 is 13/4, and a HS8 etc is a 2" carb.
    So the listing shown says HIF4 which is an inch and a half carb.
    They moved to metric measurement later in the piece so some carbs are listed as HIF 38 etc.
     
    Last edited: Jul 23, 2020
  16. drtrcrV-8
    Joined: Jan 6, 2013
    Posts: 1,707

    drtrcrV-8
    Member

    Rotten Leonard : Out of curiosity, have you ever weighed this car? With all the lightweight things you've done in the fabrication, I'd be very surprised if it weighed much over 1300lbs empty & with 5gals of gas in the tank...
     
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  17. rottenleonard
    Joined: Nov 7, 2008
    Posts: 1,993

    rottenleonard
    Member

    Yeah with bathroom scales right at 1400lbs with 10 gallons of fuel. The IRS should help loose some weight, and i have an aluminum bellhousing for it too. They say you can cut 40lbs out of the flywheel. I'm going to try to keep widdling it down and see if I can get it under 1000lbs.

    Someone should donate one of those aluminum model A blocks......

    20200601_161242.jpg 20200601_161240.jpg 20200601_162455.jpg 20200601_162457.jpg 20200601_163028.jpg
     
    Last edited: Jul 30, 2020
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  18. Wow!
     
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  19. AHotRod
    Joined: Jul 27, 2001
    Posts: 12,216

    AHotRod
    Member

    How cool is that, 1400# .... love it brother
     
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  20. Great weight distribution, too!
     
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  21. drtrcrV-8
    Joined: Jan 6, 2013
    Posts: 1,707

    drtrcrV-8
    Member

    Although there is so much good information on the HAMB, so many of us seem to be stuck inside the "box"... Then Rotten Leonard comes along & TOTALLY DESTROYS the "box" into a shredder & then starts from "scratch" to perform "Magic"!! Then he puts it on display for the rest of us to drool over(& learn from BIG TIME!!!) THANKS FOR SHOWING US NEW IDEAS & WAYS OF APPROACHING A PROJECT!!! (To say nothing of "Blowing our minds"!!)
     
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  22. drtrcrV-8
    Joined: Jan 6, 2013
    Posts: 1,707

    drtrcrV-8
    Member

  23. drtrcrV-8
    Joined: Jan 6, 2013
    Posts: 1,707

    drtrcrV-8
    Member

    BTTT : Sorry to keep "buggin" you, but your work is an inspiration to the rest of us!!
     
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  24. Stogy
    Joined: Feb 10, 2007
    Posts: 26,345

    Stogy
    ALLIANCE MEMBER

    No diet required...well maybe a little...:D
     
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  25. THE FRENCHTOWN FLYER
    Joined: Jun 6, 2007
    Posts: 5,369

    THE FRENCHTOWN FLYER
    Member
    from FRENCHTOWN

    I just discovered this thread and find it very interesting, particularly the recent SU discussion.
    I am in the process of doing a champ car replica using two SUs on my five liter inline six. I know little about these carbs. Not to muck up your thread by hijacking it to ask questions about these (HS6?) carbs I will be starting my own thread seeking help with these carbs, about which I know little. Your carb linkages are really elegant looking.
     

    Attached Files:

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  26. Plenty on the web about SUs and a couple of must have books; the Haynes SU book and one called Tuning SUs for power (or something like that)


    Sent from my iPad using The H.A.M.B. mobile app
     
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  27. AccurateMike
    Joined: Sep 14, 2020
    Posts: 631

    AccurateMike
    Member

    Those are not 6's. HS6's and above have 4 bolt flanges to the manifold. You have HS2's or 4's. Measure the manifold side. HS2 is 1 1/4", HS4 1 1/2". An HS2 will flow 90cfm., HS4 142cfm., HS6 (1 3/4") 210cfm. Mike
     
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  28. THE FRENCHTOWN FLYER
    Joined: Jun 6, 2007
    Posts: 5,369

    THE FRENCHTOWN FLYER
    Member
    from FRENCHTOWN

    I know the carbs pictured are not HS6s, Those are not the carbs I will be using. The carbs I am using are 1 3/4" on the manifold side, but alas, I cannot see any numbers on them so I am sort of at a loss as to where to turn for specs. The ones shown are HS3s (AUD 35R) 1.375" and the ones mounted up on the car measure 1.70" and have 4-bolt mounting flanges. Other than that I'm stumped. Then have a goofy mfgrs insignia, no numbers.

    I'll take better photos and start a separate thread.
     
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  29. drtrcrV-8
    Joined: Jan 6, 2013
    Posts: 1,707

    drtrcrV-8
    Member

  30. 97
    Joined: May 18, 2005
    Posts: 1,982

    97
    Member

    In 40 plus years of carburettor work I have yet to see a HS3! ,2,4,6,and the one I would recommend for you HS8 or HD8, for twin carbs HS6 or even HS8s for triples , or one carb per intake port then I would say 6 HS4s.
     
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