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Hot Rods Quickchange

Discussion in 'The Hokey Ass Message Board' started by sdluck, Jul 11, 2019.

  1. sdluck
    Joined: Sep 19, 2006
    Posts: 2,097

    sdluck
    Member

    I have a full floating frankland QC to go in my streetrod .What are you guys running for diff oil and axle oil.Gl 4. It has been is storage and never had any oil in it
     
  2. jimmy six
    Joined: Mar 21, 2006
    Posts: 4,222

    jimmy six
    ALLIANCE MEMBER

    80-90 some use 140. I't's going to leak and whine. Good luck
     
  3. V8 Bob
    Joined: Feb 6, 2007
    Posts: 2,408

    V8 Bob
    ALLIANCE MEMBER

    Valvoline 80/90 Durablend.
     
  4. Mike VV
    Joined: Sep 28, 2010
    Posts: 1,418

    Mike VV
    Member
    from SoCal

    Aren't "diff." (differential ?) oil and "axle oil" pretty much the same thing..? They go into the same place, lube the same parts.

    I run Valvoline 80-90, full synthetic in my Winters Quick Change.

    Mike
     
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  5. Have always run 90wt gear oil. And they don't all leak. My Speedway Champ is fully O ringed, and does not leak a drop. And if you run helical gears, 90% of the whine is gone.
     
  6. LM14
    Joined: Dec 18, 2009
    Posts: 1,503

    LM14
    Member
    from Iowa

    Look into Redline or Royal Purple. We ran those or Valvoline full synthetic in all our QC rears when racing and they run noticeably cooler than mineral oils and feel much slicker when you pull gears to change them.
    SPark
     
    stillrunners likes this.
  7. sdluck
    Joined: Sep 19, 2006
    Posts: 2,097

    sdluck
    Member

    Have you ever run the lightweight gears,I assume you are referring to QC gears>
     
  8. I guess I'm in the dark ages. Never heard of "lightweight" gears for a quick change. Helical gears are gears with teeth angle cut. Helical gears have more drag so straight cut gears are run in racing applications. The only time I hear any whine from the QC in on deceleration. I get a little whine in the 25-35 mph range. If I switch positions, top to bottom, bottom to top, the whine is heard in the same speed range, but on acceleration.
     
    lothiandon1940 likes this.
  9. LM14
    Joined: Dec 18, 2009
    Posts: 1,503

    LM14
    Member
    from Iowa

    https://www.speedwaymotors.com/PEM-...6465069&utm_content=All Products (Jun26_2019)

    There are your lightweight gears. Turned material from the center of the large gear and drilled holes. Most manufacturers make a similar gear set.
    SPark
     
  10. sdluck
    Joined: Sep 19, 2006
    Posts: 2,097

    sdluck
    Member

    Did you run rtv or sealer on the bells or just orings?
     
  11. sdluck
    Joined: Sep 19, 2006
    Posts: 2,097

    sdluck
    Member

  12. Atwater Mike
    Joined: May 31, 2002
    Posts: 9,342

    Atwater Mike
    ALLIANCE MEMBER

    Lightweight Q.C. gears. 'O' rings for Champ housings. New stuff, (recent, at least...Last innovation I heard about were the helical gears...)
    The Halibrands are smiling down.
     
  13. alchemy
    Joined: Sep 27, 2002
    Posts: 13,709

    alchemy
    Member

    With the hulking weight of a Champ size rearend, I think drilling some holes in the change gears to save a tenth pound sounds ridiculous. Especially for use on the street.
     
    HemiDeuce and Dean Lowe like this.
  14. Happydaze
    Joined: Aug 21, 2009
    Posts: 726

    Happydaze
    ALLIANCE MEMBER

    There's more than one 'Speedway'.

    There's Speedway Engineering (manufacturer of their own QC rear), and Speedway (that everyone knows and some are wary of). There may be other Speedways!

    Speedway Eng don't appear to list 'lightweight' gears.

    Chris
     
  15. That is what all the short track Q.C.s do. The new rage is 8" ring and pinon 10 spline (Champ) Quick Changes.
    Anything to lighten rotating mass. The wheel bearings run in oil not grease to lessen resistance.
    It is crazy!

    My father always said when building a chassis. "It is easier to save ounces then pounds."

    Save ten tenths you save a pound. Save a 1,000 tenths you save 100 pounds.
     

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