Rear LSD diff identification

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • andyg plym
    S2Forum Freak
    • Nov 2006
    • 4646
    • Country: England

    #1

    Rear LSD diff identification

    I was reading an article way back from 2003 in "audience" and my pearl green wagon was in there having just been bought by tim cooper from renntech.

    the article gave the spec of my car etc and one thing it said was it was factory fitted with an LSD.

    How can I identify this? Are there any part numbers?
  • UrS4boy
    S2Forum Obsessed
    • Feb 2006
    • 11859
    • Country: Canada

    #2
    They were wrong. Factory UrS (C4, B3, B4, P1) rear diffs are open with either locking capabilities OR EDL (96 and 97 UrS6 and S6 plus) (which of course, is neither "diff" or "locking")

    The Audi Enthusiast website. Forums for all Audis including A4, S4, A5, S5, A6, S6, allroad, A8, S8, TT, R8, Q5, Q7, 4000, 100, 200, v6, v8, vintage, local forums
    RS2'd 93 UrS4 5 spd sedan
    94 UrS4 V8 6 spd manual avant

    Comment

    • andyg plym
      S2Forum Freak
      • Nov 2006
      • 4646
      • Country: England

      #3
      right thanks for posting that up

      oh well,cant always believe what you read

      Comment

      • caterpillar
        S2Forum Fiend
        • Jun 2004
        • 2480

        #4
        my fault only

        factory fitted with an LSD.

        ONLY the 200,v8 from 1988-1993... the d11 chassi

        sorry my fault; no lsd but thorsen.....
        Last edited by caterpillar; 2 September 2012, 15:46.

        Comment

        • UrS4boy
          S2Forum Obsessed
          • Feb 2006
          • 11859
          • Country: Canada

          #5
          Originally posted by caterpillar
          factory fitted with an LSD. ONLY the 200,v8 from 1988-1993... the d11 chassi
          What LSD is this? The Torsen isn't a LSD by most common definitions.
          RS2'd 93 UrS4 5 spd sedan
          94 UrS4 V8 6 spd manual avant

          Comment

          • Error404
            Super Moderator
            • Mar 2007
            • 19789
            • Country: United Kingdom

            #6
            Really? What is it then? Give us some of these common definitions. Or are you just trying to be awkward as usual?
            Panthero Coupé quattro 20vt
            Indigo ABY coupé
            Imola B6 S4 Avant

            Comment

            • Sleeper_Avant
              S2Forum Fiend
              • Mar 2009
              • 2372
              • Country: England

              #7
              any good?

              1993 URS4 Avant Emerald Green 350+bhp
              1991 Ford Sierra Sapphire 4x4 in Magenta
              BoooOOOSSSSSTTTT BANG BANG CHIRP CHIRP

              Comment

              • Sleeper_Avant
                S2Forum Fiend
                • Mar 2009
                • 2372
                • Country: England

                #8
                Andy, have all 4 wheels off the ground, turn one rear wheel and if opposite one turns in same direction "with resistance" i.e not easily stopped, its an LSD

                if the wheel spins on its own easily, open diff

                car out of gear ofcourse
                1993 URS4 Avant Emerald Green 350+bhp
                1991 Ford Sierra Sapphire 4x4 in Magenta
                BoooOOOSSSSSTTTT BANG BANG CHIRP CHIRP

                Comment

                • UrS4boy
                  S2Forum Obsessed
                  • Feb 2006
                  • 11859
                  • Country: Canada

                  #9
                  Originally posted by Error404
                  Really? What is it then? Give us some of these common definitions. Or are you just trying to be awkward as usual?
                  The word you were looking for is pedantic.

                  The limited slip differential (LSD) definition that I was thinking of included clutch packs (aka Positrac) or cone clutches or viscous couplings. I would put the Torsen rear diff into a different catagory. Apparently *some* people think that the Torsen torque-sensing geared mechanical rear diff is just an example of LSD. I think the writer of the original article in question would have scored more reader points if they had mentioned "Torsen" instead of "LSD". Maybe they just liked typing "LSD" and re-living their youth.

                  RS2'd 93 UrS4 5 spd sedan
                  94 UrS4 V8 6 spd manual avant

                  Comment

                  Working...