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History Drag cars in motion.......picture thread.

Discussion in 'Traditional Hot Rods' started by Royalshifter, Dec 12, 2007.

  1. 427 sleeper
    Joined: Mar 8, 2017
    Posts: 1,350

    427 sleeper
    ALLIANCE MEMBER

    Thanks. Thought it might have been the "Black Widow" car before it got lettered.
     
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  2. 65pacecar
    Joined: Sep 22, 2010
    Posts: 3,436

    65pacecar
    Member
    from KY, AZ

  3. 65pacecar
    Joined: Sep 22, 2010
    Posts: 3,436

    65pacecar
    Member
    from KY, AZ

  4. 65pacecar
    Joined: Sep 22, 2010
    Posts: 3,436

    65pacecar
    Member
    from KY, AZ

  5. Deuces
    Joined: Nov 3, 2009
    Posts: 21,279

    Deuces
    Member
    from Michigan

    Moon shot!.....:cool:
     
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  6. old flopper
    Joined: Apr 23, 2013
    Posts: 421

    old flopper
    Member

    If driver was also the owner, this is about the point he was thinking how much damage is going to happen when this comes down...... Hmmm…. Wonder what made me think that? :rolleyes:;)
     
  7. Deuces
    Joined: Nov 3, 2009
    Posts: 21,279

    Deuces
    Member
    from Michigan

    Yeah, ouch!.....:(
     
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  8. 65pacecar
    Joined: Sep 22, 2010
    Posts: 3,436

    65pacecar
    Member
    from KY, AZ

  9. Deuces
    Joined: Nov 3, 2009
    Posts: 21,279

    Deuces
    Member
    from Michigan

    Ouch!.....:(
     
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  10. Goose found out Barracudas don't fly well.
     
  11. Well.......that one did fly, just didn't do so well on the the landing
     
    Last edited: Oct 15, 2021
  12. Jones St.
    Joined: Feb 8, 2020
    Posts: 970

    Jones St.

  13. 65pacecar
    Joined: Sep 22, 2010
    Posts: 3,436

    65pacecar
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    from KY, AZ

  14. WB69
    Joined: Dec 7, 2008
    Posts: 1,713

    WB69
    Member

    The return to earth may hurt a little bit I'd think.
     
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  15. Deuces
    Joined: Nov 3, 2009
    Posts: 21,279

    Deuces
    Member
    from Michigan

    Yep!.....:(
     
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  16. Fordors
    Joined: Sep 22, 2016
    Posts: 3,849

    Fordors
    Member

    Another creation from the fertile mind of cam grinder Chet Herbert. Originally running twin Olds F-85 injected 215 inch aluminum blocks he later went with 4-71 blowers. Chet came up with the unique drive spinning both blowers.
     
  17. ttwomotor
    Joined: Jul 26, 2012
    Posts: 602

    ttwomotor
    Member
    from Illinois

    Pretty sure the Jack's Auto Parts Twin had blower drive deal before Chet. 9-4-15-1o.jpg
     
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  18. 65pacecar
    Joined: Sep 22, 2010
    Posts: 3,436

    65pacecar
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    from KY, AZ

  19. Fordors
    Joined: Sep 22, 2016
    Posts: 3,849

    Fordors
    Member

    Well there ya go, it shows there’s nothing new under the sun.
     
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  20. ttwomotor
    Joined: Jul 26, 2012
    Posts: 602

    ttwomotor
    Member
    from Illinois

    The Freight Train way. 9-7-13o.jpg
     
  21. patsurf
    Joined: Jan 18, 2018
    Posts: 488

    patsurf

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  22. hipojoe
    Joined: Jul 23, 2021
    Posts: 223

    hipojoe

    One of the greatest bait and switches in DRAG RACING. Mr Floyd Lippencot!!!
     
  23. Deuces
    Joined: Nov 3, 2009
    Posts: 21,279

    Deuces
    Member
    from Michigan

    I kinda wonder if they made those 2 sing like a 16 cylinder engine or had 2 cylinders firing at the same time....
     
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  24. ttwomotor
    Joined: Jul 26, 2012
    Posts: 602

    ttwomotor
    Member
    from Illinois

    Two at a time for the Train - Chet Herbert tried the V 16 method. 2-V16.jpg
     
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  25. 65pacecar
    Joined: Sep 22, 2010
    Posts: 3,436

    65pacecar
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    from KY, AZ

  26. George Klass
    Joined: Dec 31, 2007
    Posts: 965

    George Klass
    ALLIANCE MEMBER

    One thing about using a dual-timing chain to connect the front engine to the rear engine is that's very easy to change the firing sequence between engines. You can make the #1 cylinder on both engines to fire at the same time, or any firing order in between. On Chet's dyno, we ran both engines from the "Pulsator" AA/FD together many times, and tried several different firing orders. There was no HP difference.

    The dynamics of in-line dual engine dragsters can really give you a headache. Take the crankshaft, for instance, of a V8 engine. The load on the crankshaft in the front of the engine (the front two cylinders) is much less than the load at the rear of the crank, (where the torque load on the crank is from all the cylinders). The torque increases from the front of the crank to the rear, assuming that the engine is under a load (as on an engine dyno or on a dragster going down the track). You might have to let that sink in for a minute.

    When you attach two cranks together in-line, (techincally a V16) the load on the crank in the rear engine is both the torque loaded on it from the front engine, plus the torque load on the crank at the rear from the rear engine. Let me say it this way, you had better have a VERY stout crankshaft on the rear engine, because the rear engine is going to have to absorb double the torque on it than the crank of the front engine.

    The inline engines that we were using on the Pulsator were bored and stroked 327 Chevys (364 cubic inches each). We were running straight nitro out of the can. If we had been using the newer 350 Small Block Chevy engines, we would most likely not had the issues we had, but the 350's were not available yet. The 350 cranks had larger journals than the 327's. What was happening was that the amount of torque was rattling the rear crank to hell and gone.

    Now, scroll up and look at the photo of the Freight Train above. Both the Train and the Pulsator were just about twins of each other (and Muravez drove both cars), except the Train was supercharged on gaoline, and the Pulsator was injected on fuel. Note that on the Train (at that time), the front engine drove both superchargers. We figured that a 6-71 blower with a lot of boost would take about 175 to 200 HP to drive. A blown SB Chevy on gasoline could make about 500 to 550 HP, and it took about 200 HP to drive the blower. Now, if the front engine had to drive both blowers, that meant it took 400 HP, and since the front engine could only make 550 HP, it was only putting 150 HP into the crank on the rear engine, PLUS, that big rubber timing belt spinning the blowers was a beautiful "harmonic dampner". Of course, what the front engine lost in HP driving both blowers, the rear engine made up for by getting the boost from a blower it did not have to drive, so things equaled out.

    I feel a headache coming on...
     
    Last edited: Oct 19, 2021
  27. 65pacecar
    Joined: Sep 22, 2010
    Posts: 3,436

    65pacecar
    Member
    from KY, AZ

  28. joemac05
    Joined: Jul 29, 2006
    Posts: 329

    joemac05
    Member

    Yes, but these are the things most people never think about...
     
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