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Solution for S54 oil condisation lines to a E34 oil pan

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    Solution for S54 oil condisation lines to a E34 oil pan

    This is a e30 race car getting an upgrade from a S52 to a S54. I'm using the same oil pan after doing the S54 pump/pickup swap. Trying to figure out the best solution for both condensation lines (8 & 9) as the E34 is not ported. I'm not opposed to adding the bung but before doing so I'm looking for a solution that has been proven as there are a lot of theoretical solutions on the web. Any suggestion would be helpful.
    Last edited by greggp; 04-01-2025, 04:12 PM.

    #2
    A simple way would be to use a dipstick with an oil drain back port. I can't remember which model it came from though.
    "I'd probably take the E30 M3 in this case just because I love that little car, and how tanky that inline 6 is." - thecj

    85 323i M TECH 1 S52 - ALPINEWEISS/SCHWARZE
    88 M3 - LACHSSILBER/SCHWARZE
    89 M3 - ALPINEWEISS II/M TECH CLOTH-ALCANTARA
    91 M TECHNIC CABRIO TURBO - MACAOBLAU/M TECH CLOTH-LEATHER

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      #3
      Thanks for you response.. I did actually find a dipstick with a oil back port on Ebay. Looks like it came from a first year S54 Z3...

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