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Thread: NHRA rules
          
   
   

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  1. #1
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    NHRA rules

     



    Hey gang. I'm getting ready to order some roll bar tubing for the 'maro...anybody have a new rule book handy to see what the spec for moly tubing 8 point roll bar for a 10.90 car is? Think it used to be 1 1/2" X .083 wall......???????

    Thanks

    Found the spec on a google search that sez 1 5/8 x .083, but I thought that had changed for moly??????
    Last edited by Dave Severson; 01-29-2008 at 09:41 PM.
    Yesterday is history, tomorrow is a mystery, Live for Today!
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  2. #2
    jerry clayton's Avatar
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    1 5/8 083 for moly

    1 3/4 134 dom

    some rules have changed

    most differences are probably in the braces

  3. #3
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    Ok, thanks Jerry. Have to go find me some updated specs I guess. 1 5/8 .083 it is.
    Yesterday is history, tomorrow is a mystery, Live for Today!
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  4. #4
    techinspector1's Avatar
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    Quote Originally Posted by Dave Severson
    Ok, thanks Jerry. Have to go find me some updated specs I guess. 1 5/8 .083 it is.
    Roll BAR 1 3/4" (No A-pillar bar, no halo bars) Minimum 0.118" mild steel, 0.083" moly
    Roll CAGE 1 5/8" (with A-bar, halo bars) same wall as above
    Last edited by techinspector1; 02-11-2008 at 02:45 PM.

  5. #5
    techinspector1's Avatar
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    Quote Originally Posted by DennyW
    Techie !! WELCOME !!

    I'm very sorry if I got on your nerves. Will you accept my apologies please ?

    Heres YOUR AVATAR.....if you still want it....
    Let's kiss and make up......well.......maybe shake hands and make up. Sorry for showing my a** in public. My apologies to you and all. I've resumed taking my meds and all is well. Sometimes my compass doesn't point to North.

  6. #6
    Big Tracks's Avatar
    Big Tracks is offline CHR Member Visit my Photo Gallery
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    It's great to see you making your presence known again, Richard!

    The absence of your many expert contributions has definitely been felt.

    I, for one, am looking forward to "business as usual" ........ just like it used to be.

    To quote (more or less) that old motel commercial, "we've kept the light on for you".


    Jim
    Last edited by Big Tracks; 02-12-2008 at 05:52 AM.

  7. #7
    techinspector1's Avatar
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    Thanks Jim, I appreciate it very much.

  8. #8
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    Quote Originally Posted by techinspector1
    Roll BAR 1 3/4" (No A-pillar bar, no halo bars) Minimum 0.118" mild steel, 0.083" moly
    Roll CAGE 1 5/8" (with A-bar, halo bars) same wall as above
    Thanks Richard! The 'maro is just getting a 6 point bar, so 1 3/4" it is!
    Yesterday is history, tomorrow is a mystery, Live for Today!
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  9. #9
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    welcome back tech long time no read

  10. #10
    gassersrule_196's Avatar
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    was thinking more like this heres some i have had in my favorites folder for quite some time. WARNING BIG FILE!!
    Attached Images

  11. #11
    gassersrule_196's Avatar
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    rule rule rules, BAH to may of them these days, what ever happened to those cool 3 and 4 point roll bars and bomber seats

  12. #12
    jerry clayton's Avatar
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    goggles and leather helmuts

  13. #13
    gassersrule_196's Avatar
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    i personally think that the silver fire suits and breather mask with goggles are awesome

  14. #14
    techinspector1's Avatar
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    Quote Originally Posted by gassersrule_196
    i personally think that the silver fire suits and breather mask with goggles are awesome
    Top Fuel-Goggles now prohibited. Must wear full face helmet with shield. SFI 31.2A, Snell SA2000 or SA2005. Must use skirted helmet with built-in SFI 3.3 sock or separate SFI 3.3 head sock if helmet is not skirted. Neck collar not required with skirted helmet or separate head sock. (Secondary function of neck collar was to prevent fire from going past the neck and up into the helmet. That function is provided by the head sock now. Driver can elect to use a neck collar with the sock/skirt if he/she desires) Must use SFI 38.1 HANS device.

  15. #15
    Dave Severson is offline CHR Member/Contributor Visit my Photo Gallery
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    The majority of the rules are there for a reason, unfortunately many times the reason was injury or death. If NHRA wants 1 5/8" .083 wall tubing, sounds good to me..... I've lost way too many friends to freak racing incidents over the years to question their logic, or yearn for the "good old days" when safety was for sissies.....
    Yesterday is history, tomorrow is a mystery, Live for Today!
    Carroll Shelby

    Learning must be difficult for those who already know it all!!!!

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