"i" to "e" swap

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  • JTDay
    E30 Addict
    • Dec 2009
    • 521

    #1

    "i" to "e" swap

    I'm sure this is somewhere out there on the net, but I don't have the time to look for it. There's a company based out of CA called Bavarian Auto Recycling (bmrparts.com) that offers full, tested longblocks for sale. My main question is: will all of the "i" engine accessories, p/s, A/C, alternator, intake mani, oil filter, ECU, wiring harness, etc. work with the 2.7 "e" motor? Also are the transmissions interchangeable? I ask because the "e" motors that they sell are much cheaper than the "i" motors. NEED TO KNOW ASAP!!!!

    Thanks,

    Josh
    Last edited by JTDay; 07-15-2010, 06:49 PM.
    Past: 1987 325iS, Bilsteins - HR Sports

    Present: 1999 M3, Koni Yellows - HR Sports - GC Camber Plates - UUC Swaybars - UUC SSK - AFE Intake - Stromung Catback

    2009 Mazdaspeed3, Short Ram Intake - Turbo Inlet Pipe - 2nd cat Delete - Catback - Fuel Pump Internals - Cobb Accessport - Stratified E30 tune - 294/342 - SPC Camber Arms - CPE Rear Motor Mount
  • e34john
    No R3VLimiter
    • Apr 2006
    • 3599

    #2
    There is a reason why the E motor is cheaper.
    sigpic

    Comment

    • Elysian
      Mod Crazy
      • Apr 2010
      • 674

      #3
      Hold out for an i motor, the e=suck

      Comment

      • JTDay
        E30 Addict
        • Dec 2009
        • 521

        #4
        I am aware of the deficiencies of the E compared to the I. Torque is more important to me anyways and if II can always need this car to last another 2 years through college. Still looking for an answer.
        Last edited by JTDay; 07-26-2010, 08:17 PM.
        Past: 1987 325iS, Bilsteins - HR Sports

        Present: 1999 M3, Koni Yellows - HR Sports - GC Camber Plates - UUC Swaybars - UUC SSK - AFE Intake - Stromung Catback

        2009 Mazdaspeed3, Short Ram Intake - Turbo Inlet Pipe - 2nd cat Delete - Catback - Fuel Pump Internals - Cobb Accessport - Stratified E30 tune - 294/342 - SPC Camber Arms - CPE Rear Motor Mount

        Comment

        • e34john
          No R3VLimiter
          • Apr 2006
          • 3599

          #5
          Do you have an E transmission? Well I guess you edited your first post. If you have an i car with a blown M20b25, you can't use that transmission with a replacement e engine. Plus the DME and other junk will be different too. I am sure you can find someone on here with an i motor on the cheap. Like a few hundred dollars cheap.
          sigpic

          Comment

          • JTDay
            E30 Addict
            • Dec 2009
            • 521

            #6
            Thanks!
            Past: 1987 325iS, Bilsteins - HR Sports

            Present: 1999 M3, Koni Yellows - HR Sports - GC Camber Plates - UUC Swaybars - UUC SSK - AFE Intake - Stromung Catback

            2009 Mazdaspeed3, Short Ram Intake - Turbo Inlet Pipe - 2nd cat Delete - Catback - Fuel Pump Internals - Cobb Accessport - Stratified E30 tune - 294/342 - SPC Camber Arms - CPE Rear Motor Mount

            Comment

            • e30325i89
              Noobie
              • Jul 2010
              • 1

              #7
              engine swap

              i have a 325i that i want to do the 2.7 block to get the low compression. i finally found a 1989 es block and im wondering if the es block will work and will it bolt up 2 a 89 325i head. and will the pistons on the es block still be low comp. on my 2.5 head.

              Comment

              • JTapper
                E30 Modder
                • Sep 2009
                • 847

                #8
                Originally posted by e34john
                Do you have an E transmission? Well I guess you edited your first post. If you have an i car with a blown M20b25, you can't use that transmission with a replacement e engine.
                How do you figure?
                sigpic
                Turbo Cabrio project: http://eurowerks.org/showthread.php?t=19677

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