Which m20 motor is this??

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  • ethree
    E30 Fanatic
    • Aug 2007
    • 1213

    #16
    What about the casting # on the head?

    Comment

    • SpecM
      R3V Elite
      • Oct 2005
      • 4531

      #17
      Originally posted by ethree
      What about the casting # on the head?
      this is the only sure way to tell
      1989 cirrisblau-metallic 325i

      Comment

      • napabavarian
        E30 Modder
        • Jun 2008
        • 834

        #18
        Look at the engine from the passenger side, there should be a brace from the intake manifold to the valve cover, if it attaches to the high side of the valve cover it is most likely a 325i engine, if it goes across the valve cover and bolts to the low side it is likely an etta engine, then again I have a parts car with an engine that I will need to tear apart and measure to confirm what it is

        This place is like catholic school, 2/3 of the students smoke weed on a daily basis, but the faculty seems to convince the outside world that drugs are just in the other schools, the resident pot dealer thinks he's cool because he has the originality to call anyone he doesn't like a homosexual, and most of the little children follow him like sheep, then there's the few with brains, you hardly ever hear from them, perhaps don't even know they exist, but they get all the sh!t done.

        Comment

        • slo325i
          E30 Addict
          • Aug 2008
          • 417

          #19
          First my '87 sedan


          View 1


          View 2


          View 3


          I hope this helps out, guys. Thanks for helping me out.

          Justin


          '89 325i - Totaled... good bye my love...
          '87 327i budget stroker - SOLD!!!
          '92 240sx - ca18det powered drift toy - SOLD!!!
          '89 325i - coupe - NEW daily
          '96 Audi A6 Quattro- Grocery getter/baby hauler
          '99 Busa - weekend wheelie monster

          Comment

          • Erick
            Official R3V Drifter
            • Oct 2003
            • 11169

            #20
            it's an eta motor, that probably came out of an automatic.
            Erick Mahle | FullOpp Drift | YouTube
            EurostopUSA | Dunlop Tires | Ireland Engineering | EnthusiastApparel | Ground Control

            ..::Support FullOpp::..
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            Originally posted by Mr. Anderson
            ...one of the most hardcore E30's around. :D

            Comment

            • kronus
              R3V OG
              • Apr 2008
              • 13005

              #21
              Whatever you have has 'i' electronics in it.

              Is that nipple off the right of the intake boot capped off? Hard to tell in the pics, but it would be quite odd if it was, because then you wouldn't have an ICV.
              cars beep boop

              Comment

              • napabavarian
                E30 Modder
                • Jun 2008
                • 834

                #22
                Difficult to tell for certian from the drivers side, can you shoot it from the passenger side? The runners on the etta intake are smaller, but that can be deceptive in a picture. It does have the 88-up electronics.

                This place is like catholic school, 2/3 of the students smoke weed on a daily basis, but the faculty seems to convince the outside world that drugs are just in the other schools, the resident pot dealer thinks he's cool because he has the originality to call anyone he doesn't like a homosexual, and most of the little children follow him like sheep, then there's the few with brains, you hardly ever hear from them, perhaps don't even know they exist, but they get all the sh!t done.

                Comment

                • rThor432
                  No R3VLimiter
                  • Feb 2007
                  • 3907

                  #23
                  Nice idle control valve.

                  Comment

                  • slo325i
                    E30 Addict
                    • Aug 2008
                    • 417

                    #24
                    I'm fairly new to these motors so please help me out:

                    Thanks to rwddrift we now know that this is an eta motor.

                    Kronos: How do you know that it has I electronics on it?

                    rThor432: I sense sarcasm. I'd like to fix what the PO did an half-ass job on. Please help.


                    '89 325i - Totaled... good bye my love...
                    '87 327i budget stroker - SOLD!!!
                    '92 240sx - ca18det powered drift toy - SOLD!!!
                    '89 325i - coupe - NEW daily
                    '96 Audi A6 Quattro- Grocery getter/baby hauler
                    '99 Busa - weekend wheelie monster

                    Comment

                    • napabavarian
                      E30 Modder
                      • Jun 2008
                      • 834

                      #25
                      Do you know what the build date is on this car? Is it possible this is a super etta engine?

                      This place is like catholic school, 2/3 of the students smoke weed on a daily basis, but the faculty seems to convince the outside world that drugs are just in the other schools, the resident pot dealer thinks he's cool because he has the originality to call anyone he doesn't like a homosexual, and most of the little children follow him like sheep, then there's the few with brains, you hardly ever hear from them, perhaps don't even know they exist, but they get all the sh!t done.

                      Comment

                      • Erick
                        Official R3V Drifter
                        • Oct 2003
                        • 11169

                        #26
                        He says that the motor is from '86, and the car is an '87. Super ETAs came in '88.
                        Erick Mahle | FullOpp Drift | YouTube
                        EurostopUSA | Dunlop Tires | Ireland Engineering | EnthusiastApparel | Ground Control

                        ..::Support FullOpp::..
                        FullOpp Stickers for sale!
                        NEW | Enthusiast Apparel T-Shirts! | NEW
                        Feedback Thread

                        Originally posted by Mr. Anderson
                        ...one of the most hardcore E30's around. :D

                        Comment

                        • rThor432
                          No R3VLimiter
                          • Feb 2007
                          • 3907

                          #27
                          Originally posted by slo325i
                          rThor432: I sense sarcasm. I'd like to fix what the PO did an half-ass job on. Please help.
                          Yes, a bit :D.

                          You really need the right hoses, intake boot, and accessories to match the wiring harness. If it's an "i" harness (appears to be..) then you will need the "i" idle control valve setup, because with the eta setup the plug will be in the wrong spot.

                          Ideally, with the "i" engine harness, you should have an "i" engine. You'll have to fool around with the vacuum hose routing to get the hoses for the "i" idle control system to work with the eta intake boot.

                          Also, do you have a vacuum line to your brake booster? Cant tell in the pictures.
                          Last edited by rThor432; 03-09-2009, 08:01 PM.

                          Comment

                          • napabavarian
                            E30 Modder
                            • Jun 2008
                            • 834

                            #28
                            Originally posted by rwdrift
                            He says that the motor is from '86, and the car is an '87. Super ETAs came in '88.
                            He says that the po said it was an '86, but based on the pictures the PO was sloppy, so I'll take that with a grain of salt and recheck everything.

                            I see what looks like an early etta intake manifold and 88+ wiring, look at the plug bolted to the front left of the manifold. If the installer was using whatever was lying around to make this run there is no telling what is what without looking at each individual piece, I'd like to know what ECU it has.

                            Last edited by napabavarian; 03-09-2009, 08:36 PM.

                            This place is like catholic school, 2/3 of the students smoke weed on a daily basis, but the faculty seems to convince the outside world that drugs are just in the other schools, the resident pot dealer thinks he's cool because he has the originality to call anyone he doesn't like a homosexual, and most of the little children follow him like sheep, then there's the few with brains, you hardly ever hear from them, perhaps don't even know they exist, but they get all the sh!t done.

                            Comment

                            • SamE30e
                              R3V Elite
                              • Sep 2007
                              • 4319

                              #29
                              Looks like a ETA.

                              Could it be a SETA?
                              1985 325e 2.8 Turbo VEMS

                              Comment

                              • napabavarian
                                E30 Modder
                                • Jun 2008
                                • 834

                                #30
                                rThor-

                                I see what you are getting at, but I believe the '87 325i should use the smaller plug, 88-up I and s-etta wiring looks similar.

                                This place is like catholic school, 2/3 of the students smoke weed on a daily basis, but the faculty seems to convince the outside world that drugs are just in the other schools, the resident pot dealer thinks he's cool because he has the originality to call anyone he doesn't like a homosexual, and most of the little children follow him like sheep, then there's the few with brains, you hardly ever hear from them, perhaps don't even know they exist, but they get all the sh!t done.

                                Comment

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