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Need another vac. line port on the intake manifold.

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    #1

    Need another vac. line port on the intake manifold.

    The cap on the intake manifold of my late model 325i has 1 vacuum port for the fuel pressure regulator. I need another manifold vacuum source (for megasquirt MAP sensor) and I am pretty sure I have seen an intake manifold cap with 2 or 3 vacuum ports on it from some other m20 (super eta?!?).

    I looked at one from a 325e but it had a larger hole for the cold start injector and I dont want that.

    Which years/models should I be looking at for this part? (RealOEM shows a generic intake manifold parts diagram which doesn't help)
    Tags: None
    #2
    Just drill a hole and thread in a 1/8 npt nipple fitting. Easy stuff

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      #3
      Not a bad idea, Thanks. I didn't think there would be enough meat to get enough thread for a good seal on NPT but I will take a look at it more closely if I cant source the part im looking for.

      Comment

        #4
        Ive got 2 drilled in that intake piece. It helps to put a little jb weld on the threads to seal and keep it tight.

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          #5
          there is a peice with two vac ports on it. Not sure why, but it seemed to come on random cars, and it was always blocked off. I traded one from my buddy's car since he didn't need it. plus it doesn't look backyard hackjob mechanic.
          Build thread

          Bimmerlabs

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            #6
            Have a look at this thread,

            http://www.r3vlimited.com/board/showthread.php?t=195978

            not sure if it is correct but it says the part number is.
            11611708858

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              #7
              You have a hand dandy port on the bottom of the throttle body where the evap control valve goes. I'm guessing that you won't/can't implement that function with a MegaSquirt, the valve is going to do nothing.
              The car makes it possible, but the driver makes it happen.
              Jim Levie, Huntsville, AL

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                #8
                MS2 and MS3 can run the purge valve
                Build thread

                Bimmerlabs

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                  #9
                  Early euro cars had them for an idle throttle adjustment. They also had a vac line running to the firewall for the valve. This may be the part number from real oem 11611708858

                  The throttle body is different too. The part number I posted above is for the plate you are asking here is the entire assembly.


                  Here it is on the car with the firewall mounted control unit.
                  318iS Track Rat :nice: www.drive4corners.com
                  '86 325iX 3.1 Stroker Turbo '86 S38B36 325

                  No one makes this car anymore. The government won't allow them, normal people won't buy them. So it's up to us: the freaks, the weirdos, the informed. To buy them, to appreciate them, and most importantly, to drive them.

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