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  • Torque convertor question

    Could anyone please tell me the stock stall speed of the torque convertor for a 77 T-bird? Thanks.

  • #2
    Guess nobody knows..... or maybe doesn't care. I had hoped someone would know. Oh well.

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    • #3
      Torque converter question

      Hi wayne. There are several reasons why someone might not have replied to your post. First is that perhaps they did not see it. Secondly, they might not have known the answer to the question. Thirdly, someone, like me, who does not know the answer, might be researching it. But I doubt anyone on this Forum would pass it by because they did not care....

      I know very little about Torque converters and their stall speeds. I have been told that you want a low rating so that you get smooth action at lower speeds. I would suggest that if you have 1977 shop manual see what you might find in it about this. Or google the subject and see what you can find about it. Hopefully, someone with a lot more knowledge than I have who knows the answer, will see this and respond.

      Ray Clark - Squarebirds Administrator
      '59 Tbird "The Yellow Rose Of Texas" aka "Tweety Bird"
      "It's Hip To Be Square"
      Thunderbird Registry #33025 VTCI #11178

      Contact me via Private Message for my email address, or (Cell) 210-875-1411 (Home) 210-674-5781

      http://www.squarebirds.org/picture_gallery/TechnicalResourceLibrary/trl.htm

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      • #4
        Hi Wayne,

        I have the 55-56 Fordomatic Shop Manuals and they list stall speeds in the troubleshooting section.

        I don't know what tranny in in yours so see if you can find a shop manual, not just for that year of TBird, but for the Transmission for that year. If it is like a C4 or C6 there should be lots of info on them.

        Maybe on one of those Shop Manual CDs that may have other scanned books.

        HTH
        Jim
        Jimz Greenie with a White Hat and Brown Guts (ZE-XG)
        sigpic

        CLICK HERE for Jimz web site

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        • #5
          I'm with Jim and Ray. Stall speed is lock-up speed, the point at which your converter stops slipping. For production cars that are ever conscious of fuel economy and efficiency, the lock-up speed will be very low.

          More slippery converters run hot and are very expensive. They are designed for engines with cam torque curves in the mid to high rpm range; not typical of a production drivetrain setup. - Dave
          My latest project:
          CLICK HERE to see my custom hydraulic roller 390 FE build.

          "We've got to pause and ask ourselves: How much clean air do we need?"
          --Lee Iacocca

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          • #6
            Originally posted by raptor1962 View Post
            Guess nobody knows..... or maybe doesn't care. I had hoped someone would know. Oh well.
            My bet it is around the 1,800rpm mark, I think that is what my '71 C-6 is...I think!
            A Thunderbirder from the Land of the Long White Cloud.

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            • #7
              Originally posted by raptor1962 View Post

              Could anyone please tell me the stock stall speed of the torque convertor for a 77 T-bird? Thanks.
              I rarely see lack of concern here as everyone gets along and actually falls over themselves to be helpful.

              The SPEC will be found in the correct year SHOP MANUAL, the separate manual named 19XX CAR SERVICE SPECIFICATIONS. I have the 76 & 78 naturally.

              You have to have the ASSEMBLY TAG I.D. NO. to arrive at the correct spec as they are different in the cars lines and in the same model run (vehicle calibration).

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