s14b23 Engine, Transmission, Harness, and ECU Complete

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  • brodee
    R3VLimited
    • Jan 2004
    • 2914

    #1

    s14b23 Engine, Transmission, Harness, and ECU Complete

    This is the original engine from my 1988 e30 M3 that I have had for over 10 years. The engine will need some work before it can be used, here's the story.

    I had the engine rebuilt about 8 years ago. We used stock parts and sleeved the cylinders. About 4 years ago I spun a rod bearing and the engine came out to get repaired. On the shops advice I bought a brand new crank from BMW ($2200) and was told that the rods looked good and would not need to be replaced. The shop made a mistake putting the engine back together and forgot to put the flywheel guide pin on the new crank, because of this they had the timing off by one bolt. This caused the valves to bend once we fired it up.

    I took the car back from the shop and took it to a friend's shop and with his mechanic's help fixed all the issues myself. I changed out the head with a Metric Mechanic ported and polished head (see the pics) that uses stock valves. I had the head decked and checked at a local machine shop (Scroggins) here in Houston before using it. I also replaced all the timing components including guides, chain, and an S52 chain tensioner and also added an oil baffle from VAC to the pan to remedy the oil starve issue.

    I got the car running great and was having a lot of fun with it and then after about 4 months it developed a knock again. I drained the oil and there were small copper flakes in it. My guess is that the rods weren't good as the shop told me and it spun another rod bearing. I have not pulled the pan or checked beyond that point to see what the issue is. I had a full driveline from an e36 m3 and have decided to commit sacrilege and swap that into the car and let someone else have the s14.

    At the bare minimum the engine will need new rod bearings, I would guess also new rods. The crank should be great and just need a polish since it's practically new. You can buy a high mileage stock motor and need to do a full rebuild or you can buy this motor and put in a new bottom end and save yourself the very expensive timing components as well as gain a really nice ported and polished head.

    Engine comes complete with all accessories like the alternator, AC compressor, power steering pump, etc. Also has full wiring harness, upgraded plug wires, ECU (not pictured but included) and the AFM (also not pictured but included). Transmission is stock Getrag 265 and shifted smoothly, I ran Redline synthetic fluid in it.

    This would make a nice replacement for your s14 or a good drop-in for a 2002 or other BMW project. Shipping should be around $400-$500 depending on where you are.

    $7200 or best offer. It's also listed on eBay right now.
















    "Modern cars may be able to outgun it, but few can match its character, its motorsport spirit, and the way it plasters a huge grin on your face at any speed." - Patrick George

    1988 M3 - Track Rat
    1989 325iC M50 Vert
    1989 325i Coupe
    1991 318is
    1995 318ti Club Sport
    2006 330i e90
    2008 Tundra Crewmax
  • Midweste30
    Grease Monkey
    • May 2014
    • 306

    #2
    Someday....
    1990 S50 Calypso-rot 325i

    Comment

    • CMG
      Mod Crazy
      • Apr 2008
      • 736

      #3
      Fu, that sucks you tried twice to keep the s14 going

      Comment

      • florida_dirt
        E30 Addict
        • Feb 2013
        • 497

        #4
        Dude sell the e36 stuff and fix this thing properly. You're going to regret selling this engine.


        What it do
        sigpic

        Comment

        • SeminoleE30
          Noobie
          • Dec 2013
          • 5

          #5
          Bump for a good seller!
          sigpic

          My first of many E30s.
          1991 318i M20 Diamondblack

          Comment

          • Matt341
            Grease Monkey
            • Feb 2014
            • 358

            #6
            [QUOTE=florida_dirt;4353705]Dude sell the e36 stuff and fix this thing properly. You're going to regret selling this engine.

            This.
            Bmw CCA # 490080

            1995 525iA RIP
            1987 325e Cirrusblau-Metallic/Pacific Blue (Daily)

            DSC_1725 by Matthew Johnson, on Flickr

            Comment

            • slampig
              Member
              • Nov 2013
              • 75

              #7
              No, another e30m3 gets ruined.

              Comment

              • brodee
                R3VLimited
                • Jan 2004
                • 2914

                #8
                I appreciate all of your opinions but it's my car and I have put a lot of thought into this. The car is primarily used for autocross and I'm going to start doing track events in it also, for that use the s52 suits me better.

                Think of it this way, for every one of these cars that gets swapped it makes the value of yours increase :)

                "Modern cars may be able to outgun it, but few can match its character, its motorsport spirit, and the way it plasters a huge grin on your face at any speed." - Patrick George

                1988 M3 - Track Rat
                1989 325iC M50 Vert
                1989 325i Coupe
                1991 318is
                1995 318ti Club Sport
                2006 330i e90
                2008 Tundra Crewmax

                Comment

                • SketchyRex
                  Wrencher
                  • Feb 2012
                  • 242

                  #9
                  Yeah we will go with that. That my 1984 m30 swapped 318i will be worth 15-20k...
                  A guy can dream right....?

                  Comment

                  • florida_dirt
                    E30 Addict
                    • Feb 2013
                    • 497

                    #10
                    S52s are everywhere. Would suck to be next to a guy with an eta swapped s52 and you have an m3 with the same motor... Just sayin..


                    What it do
                    sigpic

                    Comment

                    • reelizmpro
                      R3V OG
                      • Dec 2003
                      • 9450

                      #11
                      Go easy guys...he's had bad luck with it. With that said, what kind of rookie shop forgets about the flywheel guide sleeve?
                      "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

                      Comment

                      • brodee
                        R3VLimited
                        • Jan 2004
                        • 2914

                        #12
                        Originally posted by reelizmpro
                        Go easy guys...he's had bad luck with it. With that said, what kind of rookie shop forgets about the flywheel guide sleeve?
                        One that is no longer in business after my build ;)

                        "Modern cars may be able to outgun it, but few can match its character, its motorsport spirit, and the way it plasters a huge grin on your face at any speed." - Patrick George

                        1988 M3 - Track Rat
                        1989 325iC M50 Vert
                        1989 325i Coupe
                        1991 318is
                        1995 318ti Club Sport
                        2006 330i e90
                        2008 Tundra Crewmax

                        Comment

                        • mr2peak
                          R3VLimited
                          • Aug 2008
                          • 2388

                          #13
                          Keep that motor.

                          Just let it sit in the garage.

                          If you ever sell the M3, you can sell it with the original motor as well. That will easily add $10k to your asking price in the future.
                          Drive it hard. Maintain it well.


                          Convertible Technical & Discussion
                          A Topless Memorandum

                          Comment

                          • brodee
                            R3VLimited
                            • Jan 2004
                            • 2914

                            #14
                            Originally posted by mr2peak
                            Keep that motor.

                            Just let it sit in the garage.

                            If you ever sell the M3, you can sell it with the original motor as well. That will easily add $10k to your asking price in the future.
                            I appreciate the opinions but this motor is NEVER going back in this car. The car is not a show car and never will be, it is used for track purpose and the s5 is a much better setup for what I need. I spent the last 3 year running an s50 powered 325is so I know what I'm getting into and I know the pitfalls of the swap etc.

                            Sooo.... back to selling the motor

                            "Modern cars may be able to outgun it, but few can match its character, its motorsport spirit, and the way it plasters a huge grin on your face at any speed." - Patrick George

                            1988 M3 - Track Rat
                            1989 325iC M50 Vert
                            1989 325i Coupe
                            1991 318is
                            1995 318ti Club Sport
                            2006 330i e90
                            2008 Tundra Crewmax

                            Comment

                            • TheEightAlpha
                              Advanced Member
                              • Jul 2014
                              • 143

                              #15
                              Dude ill buy it in like 5-6 months



                              Diego Ochoa

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