S50 vs. S52 exhaust manifold gaskets.

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  • e30rapidic
    R3VLimited
    • Oct 2003
    • 2167
    #1

    S50 vs. S52 exhaust manifold gaskets.

    Besides the obvious port count, why wouldn't these be interchangeable??
    '87 325ic, powered by S50.
    Tags: None
    • 328ijunkie
      Forum Sponsor
      • May 2007
      • 3961
      #2
      2vs 3 gaskets

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        • jrdeamicis
          E30 Modder
          • Nov 2008
          • 956
          #3
          OBD2 has provisions in the gasket for the Secondary air injection port to combine with the exhaust gases.

          Using OBD1 Gaskets on an OBD2 car would result in a massive exhaust leak.


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          Past Car : E30 S50 6 Speed 5 Lug 3.73
          Current : Z3 S50 OBD2 (Smog Legal) 6 Speed BBS RN Dual Ear Diff
          ___________________________________________
          BNB Designs
          Engine Swaps, Fabrication, Innovation, General Repair
          Richmond CA
          Julian 848-248-8029

            Comment

            • e30rapidic
              R3VLimited
              • Oct 2003
              • 2167
              #4
              Originally posted by jrdeamicis
              OBD2 has provisions in the gasket for the Secondary air injection port to combine with the exhaust gases.

              Using OBD1 Gaskets on an OBD2 car would result in a massive exhaust leak.


              http://media.photobucket.com/image/r...36Parts016.jpg
              I'm running raceland headers and an OBD-I S50. So it wouldn't make a difference which gasket I can use though....right?
              '87 325ic, powered by S50.

                Comment

                • jrdeamicis
                  E30 Modder
                  • Nov 2008
                  • 956
                  #5
                  Originally posted by e30rapidic
                  I'm running raceland headers and an OBD-I S50. So it wouldn't make a difference which gasket I can use though....right?
                  Correct.
                  Past Car : E30 S50 6 Speed 5 Lug 3.73
                  Current : Z3 S50 OBD2 (Smog Legal) 6 Speed BBS RN Dual Ear Diff
                  ___________________________________________
                  BNB Designs
                  Engine Swaps, Fabrication, Innovation, General Repair
                  Richmond CA
                  Julian 848-248-8029

                    Comment

                    • e30rapidic
                      R3VLimited
                      • Oct 2003
                      • 2167
                      #6
                      Originally posted by jrdeamicis
                      Correct.
                      thanks!
                      '87 325ic, powered by S50.

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