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    M50 to S50

    What would have to be changed to swap an s50 into my m50 car? I assume mounts are the same, would much have to be changed aside from wiring? I searched around and couldnt find much.

    Thanks,
    Jesse


    86 Zinno es
    M50 inside

    #2
    My bad, should've put it in 24v section


    86 Zinno es
    M50 inside

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      #3
      If you have a VANOS M50, you put in the S50 and change the chip. If it's an NV M50, you'll need to swap the DME and harness.
      2006 GMC Sierra 2500HD 4WD LBZ/Allison
      2002 BMW M3 Alpinweiß/Black
      1999 323i GTS2 Alpinweiß
      1995 M3 Dakargelb/Black
      - S50B32/S6S420G/3.91
      1990 325is Brilliantrot/Tan
      1989 M3 Alpinweiß/Black

      Hers: 1996 Porsche 911 Turbo Black/Black
      Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd

      sigpic

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        #4
        Its nv, so i'd just need to buy a motor with a dme and wiring harness and itll swap right in with my mounts?


        86 Zinno es
        M50 inside

        Comment


          #5
          Yep.
          2006 GMC Sierra 2500HD 4WD LBZ/Allison
          2002 BMW M3 Alpinweiß/Black
          1999 323i GTS2 Alpinweiß
          1995 M3 Dakargelb/Black
          - S50B32/S6S420G/3.91
          1990 325is Brilliantrot/Tan
          1989 M3 Alpinweiß/Black

          Hers: 1996 Porsche 911 Turbo Black/Black
          Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd

          sigpic

          Comment


            #6
            Originally posted by alpinee30m50 View Post
            Its nv, so i'd just need to buy a motor with a dme and wiring harness and itll swap right in with my mounts?

            You'll want to double check your c101/x20 connection, not sure if the pinouts are the same. If you have an adapter made, you can possibly re-use it. If you hardwired the engine into the car, you'll need to cut the old one out and start from scratch splicing the new one in.

            Mechanically, everything is identical, the engine is identical on the exterior (except for the hump in the valve cover for the vanos, which is irrelevant).
            85 325e m60b44 6 speed / 89 535i
            e30 restoration and V8 swap
            24 Hours of Lemons e30 build

            Comment


              #7
              i went from an M50nv to S50....night and day! :) :)
              NASA
              BMWCCA member
              PCA member 25yrs




              1991 318IS slick top
              1997 M3 sedan
              2001 325CI DD

              “whoever turns the wheel the least, wins"

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