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History NHRA Junior Stock

Discussion in 'Traditional Hot Rods' started by colesy, Aug 12, 2007.

  1. tommyd
    Joined: Dec 10, 2010
    Posts: 11,322

    tommyd
    Member
    from South Indy

  2. 56 Pontiac I/SA
    Joined: Oct 17, 2008
    Posts: 746

    56 Pontiac I/SA
    Member
    from Maryland

    Luv your images Tommy -- there seems to be no limit to your inventory AND that is most-likely the reason that this thread still remains active.

    To augment your pictures, it would be nice to hear a bit more about the cars/drivers depicted and/or to have some more information -- how bout it guys?

    And here's a thought -- some (Jr, Stock) 'tech talk' would be nice. Here's an example ...

    [​IMG]
    WHO was the first builder/'tuner'/racer to utilize this game-changing (1930s) feature into Junior Stockers?

    And then there's the Hoffman-conceived 'gas-ported' Dykes and the high-on-the-piston .043 top ring and the Teflon skirt buttons and the tapered wrist pins and the ...

    You get the idea.
     
    loudbang likes this.
  3. straightaxle65
    Joined: Oct 13, 2007
    Posts: 533

    straightaxle65
    Member

    56 Pontiac, I have a tech question. I was reading through the stock rules in a 68 and 69 NHRA rule book and under the exhaust rules it states "Headers accepted, but exhaust must be routed thruogh mufflers and tailpipes" "Open bypasses may be used, but must be installed in front of the muffler and direst exhaust away from the strip, tires and car body." "Outlets for open exhaust cannot excee 3.5" in diameter"

    I take this to mean that the exhaust pipe had to connect to the side of the header collector? Did the collector have to be opened to the pipe or could it be blocked off?
     
  4. '56 150
    Joined: Jan 23, 2011
    Posts: 91

    '56 150
    Member

  5. straightaxle65
    Joined: Oct 13, 2007
    Posts: 533

    straightaxle65
    Member

    Thats what I figured but the question still stands. Did the collector have to be open to the exhaust head pipe or could it have been blocked off?
     
  6. 56 Pontiac I/SA
    Joined: Oct 17, 2008
    Posts: 746

    56 Pontiac I/SA
    Member
    from Maryland

    Yes, an 'opening' was required in the collector, so that 'theoretically,' if the header outlet was capped, exhaust gasses could in-fact exit through the mufflers and tailpipes. Seldom was this 'hole' in the side of the collector very large, but only big enough (1' or less!) to allow exhaust gasses to flow out the (minimalistic) 'street' portion of the exhaust system. A larger hole would clearly interfere with the 'smooth-flowing' intent of the collector This bothersome and useless 'street' exhaust-system rule was dropped by 1970, although I thought it was a bit earlier.
     
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  7. tommyd
    Joined: Dec 10, 2010
    Posts: 11,322

    tommyd
    Member
    from South Indy

    11136699_835669159839560_4460782672665220413_n.jpg caption said it was sitting in Bristol around 1969.
     
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  8. 56 Pontiac I/SA
    Joined: Oct 17, 2008
    Posts: 746

    56 Pontiac I/SA
    Member
    from Maryland

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  9. tommyd
    Joined: Dec 10, 2010
    Posts: 11,322

    tommyd
    Member
    from South Indy

    Larry Weaver. 11149283_1603497399896292_1482667714616599267_n.jpg
     
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  10. straightaxle65
    Joined: Oct 13, 2007
    Posts: 533

    straightaxle65
    Member

    Didn't Colesy post a copy of the Car Craft article "How to build the UltimateJr Stocker" earlier in this thread? I've been going through the pages for the last hour with no success. Anyone know the page number off hand??
     
  11. loudbang
    Joined: Jul 23, 2013
    Posts: 25,187

    loudbang
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    That was on his site for sure.Not sure if it was posted in this thread or not.
     
    1947knuck likes this.
  12. 56 Pontiac I/SA
    Joined: Oct 17, 2008
    Posts: 746

    56 Pontiac I/SA
    Member
    from Maryland

  13. biscaynes
    Joined: Mar 16, 2008
    Posts: 1,684

    biscaynes
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    Ultimate jr stk series ran 7 Car Craft issues, july '68 through dec '68 and the feb '69 issue.
     
  14. I'm in the process of sorting all my magizines right now, I'll see if I can find them and get them scanned in the next couple of days.
     
  15. straightaxle65
    Joined: Oct 13, 2007
    Posts: 533

    straightaxle65
    Member

    Thanks Junior Stock. I'm missing the Sept 68 issue which covers the engine build. I hope to pick up that issue at a swap meet but for now that would be great if you can scan it! Thanks again!
     
  16. 56 Pontiac I/SA
    Joined: Oct 17, 2008
    Posts: 746

    56 Pontiac I/SA
    Member
    from Maryland

    LOTS of posts and images have been deleted by both the authors and the monitors -- for various reasons.
    But some have survived. Here's a great picture (watta way to travel!) from one of Bill's early posts.

    [​IMG]
     
  17. straightaxle65
    Joined: Oct 13, 2007
    Posts: 533

    straightaxle65
    Member

    That is such a GREAT picture! I've never seen an auto transporter look SOOO good!
     
  18. straightaxle65
    Joined: Oct 13, 2007
    Posts: 533

    straightaxle65
    Member

    That stands to reason that it was probably deleted. I'm 99% sure Colesy scanned and posted the article at one time on this thread but its gone now.
     
  19. straightaxle65
    Joined: Oct 13, 2007
    Posts: 533

    straightaxle65
    Member

    Another tech question. When it came to grinding a cam did the NHRA put out tech bulletins reguarding allowable cam specs for grinding and/or regrinding your specific cam or did you go by the factory specs?
     
  20. 56 Pontiac I/SA
    Joined: Oct 17, 2008
    Posts: 746

    56 Pontiac I/SA
    Member
    from Maryland

    If by 1967 (or certainly 1968) you were not running a cam made by Lunati, Sig Erson, Cam Dynamics. and a few other cam grinders/manufactures, you were 'out of the running,' These 'works of great engineering' met (NHRA checked) factory specs as far as lift, duration and overlap were concerned, but the not-measured (ever-so-important) *RATE OF LIFT (the 'ramp') configuration completely changed the game. Alas, when I built my car in '67, I (foolishly) opted for a stone-stock Crane "blueprinted" unit -- well made, but non-trick and it added nothing to the Pontiac's performance.
    The concept was pure genius and the right cam was a significant horsepower gain. And when measured, the total LIFT and DURATION checked out 'spot on,' but the RATE of lift (not to be confused with duration) was much faster. This was driven by a more 'generous' curve on the side or 'ramp' of the lobe.
     
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  21. tommyd
    Joined: Dec 10, 2010
    Posts: 11,322

    tommyd
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    from South Indy

  22. tommyd
    Joined: Dec 10, 2010
    Posts: 11,322

    tommyd
    Member
    from South Indy

  23. tommyd
    Joined: Dec 10, 2010
    Posts: 11,322

    tommyd
    Member
    from South Indy

  24. tommyd
    Joined: Dec 10, 2010
    Posts: 11,322

    tommyd
    Member
    from South Indy

    11063733_830997420307978_3703618382692559105_n.jpg I know it says SS/X but....
     
  25. Jimbo17
    Joined: Aug 19, 2008
    Posts: 3,604

    Jimbo17
    Member

    I can never get enough of my daily fix of Junior Stockers.
    Back in the day they filled the pit area and put on one hell of a show.

    I guess I am showing my age but who cares!!!!!!!!!!!!!!!
     
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  26. tommyd
    Joined: Dec 10, 2010
    Posts: 11,322

    tommyd
    Member
    from South Indy

  27. tommyd
    Joined: Dec 10, 2010
    Posts: 11,322

    tommyd
    Member
    from South Indy

  28. tommyd
    Joined: Dec 10, 2010
    Posts: 11,322

    tommyd
    Member
    from South Indy

    27033_106097722757291_4523980_n.jpg Hazzard Brothers at Terre Haute In.
     
    AHotRod likes this.

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