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Technical Sbf engine diaper

Discussion in 'Traditional Hot Rods' started by rocketsled59, Feb 20, 2018.

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  1. rocketsled59
    Joined: Mar 14, 2010
    Posts: 811

    rocketsled59
    Member

    my 351 based engine will be required to have a diaper this year. It has an aluminum t pan. Who makes one that would fit a pan like mine
     
  2. saltflats
    Joined: Aug 14, 2007
    Posts: 12,601

    saltflats
    Member
    from Missouri

    I would call one of the diaper makers and ask.
    Sure that most would make one to fit your pan if they didn't have one that fit.
     
    rocketsled59 likes this.
  3. Frankie47
    Joined: Dec 20, 2008
    Posts: 1,877

    Frankie47
    Member
    from omaha ne.

    Talk about left behind and abandoned.......I am going to show my ignorance and ask for myself and others......Engine diaper? Why and who requires it?
     
    harpo1313 likes this.
  4. A lot of sanctioning bodies require them. Pretty common requirement in the higher classes for both engines and transmissions, it's to keep oil (and parts) off the track if they go boom...
     
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  5. I usually just set a big piece of cardboard under mine
     
    timwhit and Just Gary like this.
  6. Our funny car required 2 of them . One was of fiber. (Like fire suit material) the other was carbon fiber.
     
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  7. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,476

    dreracecar
    Member
    from so-cal

    Some of the lower classes NE 1-2-3 will give you a choice of a soft bag or a metal tray underneath
    OIL RETENTION DEVICE
    All vehicles running 7.49 or quicker must utilize an
    SFI Spec 7.1, 7.2 or
    NHRA-accepted
    lower engine oil retention device; may use a belly pan in lieu of a device attached to the
    engine. The belly pan must extend from framerail to framerail and extend forward of the
    harmonic balancer and rearward to rear engine plate and must incorporate a minimum 2-
    inch-high lip on all sides. A nonflammable, oil-absorbent liner mandatory inside of retention
    device. See General Regulations 1:8.
     
    Frankie47 likes this.
  8. dreracecar
    Joined: Aug 27, 2009
    Posts: 3,476

    dreracecar
    Member
    from so-cal

    Frankie47 and saltflats like this.
  9. Frankie47
    Joined: Dec 20, 2008
    Posts: 1,877

    Frankie47
    Member
    from omaha ne.

    Thank you everyone! In this day and age it sounded like a gated community thing............like they would let some driveway wrenches live there.....lol!
     
  10. rocketsled59
    Joined: Mar 14, 2010
    Posts: 811

    rocketsled59
    Member

    Hell that outfit is even in my neck of the woods!
     
    saltflats likes this.
  11. F.O.G
    Joined: Oct 31, 2006
    Posts: 259

    F.O.G
    Member
    from Pacific,Mo

    Does it require a diaper? Depends...
     
  12. rocketsled59
    Joined: Mar 14, 2010
    Posts: 811

    rocketsled59
    Member

    Yes. Local track does this year. Heard meltdowns may too
     
  13. Sheep Dip
    Joined: Dec 29, 2010
    Posts: 1,572

    Sheep Dip
    Member
    from Central Ca

    Boy that went over his head!
     
  14. Dave Friend
    Joined: Dec 24, 2017
    Posts: 71

    Dave Friend

    Hi
    How fast you going?
     
  15. Flathead Dave
    Joined: Mar 21, 2014
    Posts: 3,967

    Flathead Dave
    ALLIANCE MEMBER
    from So. Cal.

    Doesn't the diaper need a henway to help keep it wrapped?
     
  16. Flathead Dave
    Joined: Mar 21, 2014
    Posts: 3,967

    Flathead Dave
    ALLIANCE MEMBER
    from So. Cal.

    They should be called busted nut sacks....
     
  17. Russco
    Joined: Nov 27, 2005
    Posts: 4,327

    Russco
    Member
    from Central IL

    rocketsled59 likes this.
  18. rocketsled59
    Joined: Mar 14, 2010
    Posts: 811

    rocketsled59
    Member

    What it really needs is someone else's bank account. That may help make it less likely to shit itself.
     
  19. rocketsled59
    Joined: Mar 14, 2010
    Posts: 811

    rocketsled59
    Member

    Hoping elevens
     
  20. Dave Friend
    Joined: Dec 24, 2017
    Posts: 71

    Dave Friend

    I don't think you need one unless it's your local track rule or class rule. I had one on my RED at 8 seconds as per NHRA What a pain it was to wrap around the starter, oil filter and to drain oil. All so to go around side mounts would be a pain. At 11 sec you are not going fast enough. Correct me if I am wrong
     

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