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'89 325 Restomod & S52 Swap - A father/son project

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    '89 325 Restomod & S52 Swap - A father/son project

    All good car restorations and upgrades begin with a solid story, and this one is no exception! We begin this with a fateful evening of scrolling the Facebook when I came across an old family friend's ad selling his '98 M3 with 395k miles. I commented on the post tagging my son's mom about what a fun first car this would make for him (he was 15 at the time and about to get his license in a year), however as fate would have it she was at work and had stumbled on the same listing and sent me a message as I tagged her. So we ended up with a crazy high mileage, needed some work and rust repair, but otherwise decent shape '98 M3 for crazy inexpensive. At this point I would not have considered myself a "car guy", as I didn't own any cars for any reason other than utility.
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    This began a very fun project between my son and I working on that M3, doing mods here and there, installing a kick-ass custom audio system (a hobby of mine since college), refinished that sweet carbon hood, then ended up sanding out all the surface rust on the body and wrapped the car. It turned out awesome and that car meant everything to my son. We had a very high emotional investment as it was something we shared to get through some otherwise difficult years of family turmoil, then of course the 'rona.
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    Unfortunately about a month ago he was out driving on the highway, it was a little slick, and the person in the lane next to him decided to drift into his lane. They ended up bumping his car just slightly, he lost control trying to correct, and hit the concrete highway divider hard, twice in fact, and that car will never be the same. Of course the most important thing is that he was Ok, uninjured, and no one else was hurt. The front end is way out of square, the rear end is creased and crumpled pretty bad, and despite any body shop's best efforts that car will never be straight again.
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    The good news is that the engine, transmission, and interior still intact, unharmed, and there's a lot to this car that still have value, both emotionally and $$. We decided to begin looking for an E30 to swap this engine into, transfer over whatever other parts we could, and allow his prized possession to live on a bit in a new form. After putting out feelers, talking to everyone we know locally in our BMW community, we eventually found this car below!



    So here's our new project! It's an '89 325 with a whole bunch of aftermarket parts (and wheels), and a half-completed M50 engine swap. It came with a boatload of extra parts, wheels, transmissions, odds & ends.
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    Attached Files

    #2
    Part two of the long first post...
    The Good:
    Apparently the '89 E30's are a great start.
    There's a ton of hard to find and cool aftermarket parts included, such as the center armrest (Husco), Euro rear license plate frame, rear wing etc.
    The M50 engine that came with it only has about 80k on it, and is already mounted in place with new engine mounts.
    My son absolutely loves the wheels. As he puts it, "I wouldn't have necessarily chose those, but seeing them on the car I really like them".
    We have this car and the blue M3 both at his grandfather's machine shop. It's a 12000sq ft heated workspace with literally every tool under the sun. And Grandpa can fabricate, weld, fix, and create anything we need. While he's not a BMW guy, he is somewhat of a legend in the tractor restoration community, and is known around the world as an expert in machining and fabrication. He's actually a Ford guy, and knows a fair amount about cars in general which will help.

    The ugly:
    Rust, a lot of it. Maybe not as much as some of the projects I've seen here on this forum, but it's not good. The battery tray, both rear quarters, some along the side rails, and a lot within the front and rear footwells. Pics to follow.
    The swap is half complete, but you never know what's actually done and what's not, so we kind of need to start over there.
    The previous owner was a smoker and the inside of the car is offensive how it smells.
    At some point a previous owner decided to install a glass sunroof, but it didn't fit correctly and leaked. Instead of fixing it they just sealed it shut with caulk. It's brutal looking.

    The Plan:
    We're going to complete the M50 swap and get the car running. Upon doing some research it appears that a lot of what we need to do can remain when it's time to drop the S52 from the M3 in there. It's a low mile M50, might as well use it for a bit.
    We're going to remove the entire interior. We're going to steam clean the door cards, powerwash the carpet, eventually remove and replace the headliner, then dye the carpet black because we like black and it'll hide the remaining stains.
    We're going to replace all rusted panels and get the car solid again.
    Once body work is complete we will sound deaden the entire car in prep for installing the audio components from the M3
    Once we have the car running and sorted out, we will then turn our attention to rebuilding the S52, which had 400k miles on it, bad valve seals, and in general could use a tune up.



    Here's a few more pics of the car prior to us working on it:
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    Under front seat, gross...
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    Some of the floor pan rust:
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    Comment


      #3
      This wont be too bad, should have it running and driving by the time the snow goes away!.. which Im guessing is in ~March?
      Simon
      Current Cars:
      -1999 996.1 911 4/98 3.8L 6-Speed, 21st Century Beetle

      Make R3V Great Again -2020

      Comment


        #4
        Nice start. Subscribed.
        How to remove, install or convert to pop out windows
        http://www.r3vlimited.com/board/showthread.php?t=297611


        Could be better, could be worse.

        Comment


          #5
          Good luck with the build! Subscribed.

          Comment


            #6
            Spent some time working on cutting out then laying in the start of some new panels in the footwell where it's rusted through. Here's a start, just getting some sheet metal pieces cut and riveted into place, will weld them shortly then seal it up with some type of paint sealant or flex seal or something, not sure what we'll use yet. But it's a start!

            Still have to add a couple more pieces here and there, including under the gas pedal where it's completely fallen apart. The jack points on both sides of the car fell out (and into dust), have to figure that out as well.
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            Comment


              #7
              when you put the permanent floor pan welded and all put some por15, not too sure about flex seal.

              Comment


                #8
                Originally posted by efficient View Post
                when you put the permanent floor pan welded and all put some por15, not too sure about flex seal.
                That's a great tip, looks very simple and easy to apply! I'll have to go grab a gallon or two before putting anything back in place. Being a black car and it looks like this is black rust prevention paint it'll work perfect.

                Comment


                  #9
                  We had probably the last decent weather day (mid-40's) that I could get outside to do this. Fricken disgusting the old carpet. I needed to get the smoke smell out, and wanted as many of the bad stains out as possible prior to dying it black. I'm guessing it'll need a couple days to dry prior to commencing the dying process, but that part I can do in a climate controlled environment.
                  I used a powerwasher, some automotive carpet stain remover, and some scrubbing discs that attach to a drill. I think it's maybe a little better? Heh...
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                  After:
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                    #10
                    No new pictures today, but I made some good progress this weekend on a few fronts, including ordering many parts and things needed to complete the engine swap and tidying up things otherwise.

                    The M50 engine is missing a handful of sensors, as well as the tensioner for the main belt. I was able to transfer over the old tensioner from the S52, but not after taking it entirely apart and running it through the parts washer. Another nice thing about having Grandpa's shop to work in, he really does have every tool and random thing (like a parts washer) up and running at all times. I'll be pulling the engine wiring harness guide off the S52 as well since that seems to be a tricky thing to find.

                    Here's what's been ordered:

                    Knock sensors
                    Oxygen sensor
                    Crankshaft position sensor
                    Brake caliper bleeder screws (old one was broken)
                    Wiring - Alternator to starter, engine ground, main battery ground (in trunk)
                    Spal electric fan, wiring kit (with temp sensor), mount kit
                    1 quart Por15 for after rust repairs
                    high temp wiring loom to clean up and protect wires


                    I'm running into a first dilemma, I cannot find within the wiring harness connectors where the Cam Position Sensor plugs into. This is the sensor on the driver side of the engine, next to the Vanos, with a three prong male plug. Most of the plugs in the wiring harness were labled so I know what they are, but I'm not finding this one! Is it possible it's missing, or would it have been possibly plugged into the wrong thing?

                    Comment


                      #11
                      That carpet came out fantastic!
                      Simon
                      Current Cars:
                      -1999 996.1 911 4/98 3.8L 6-Speed, 21st Century Beetle

                      Make R3V Great Again -2020

                      Comment


                        #12
                        Great job on the carpet. Be careful with the POR15. I just had a nightmare of a job I had to fix because the PO thought POR15 was some kind of miracle paint. They never removed all of the rust and just painted over it and the the rust kept growing and the metal literally deteriorates underneath. My metal got really brittle and broke and left a hole the size of a soda can in the passenger side rear wheel well. Remove all of the rust before treating it, all of the rust.
                        How to remove, install or convert to pop out windows
                        http://www.r3vlimited.com/board/showthread.php?t=297611


                        Could be better, could be worse.

                        Comment


                          #13
                          similar experience with POR15 here as well, plus issues with peeling and UV Reistance.
                          I eventually stopped using it because I'd buy a can, use it once, and it would harden before I got back to it.
                          Originally posted by priapism
                          My girl don't know shit, but she bakes a mean cupcake.
                          Originally posted by shameson
                          Usually it's best not to know how much money you have into your e30

                          Comment


                            #14
                            Originally posted by Northern View Post
                            similar experience with POR15 here as well, plus issues with peeling and UV Reistance.
                            I eventually stopped using it because I'd buy a can, use it once, and it would harden before I got back to it.
                            Ditto on the peeling and UV light exposure compromising the POR15. I use rust bullet instead of POR15 and I remove all of the rust. Also for surface rust on frame rails and similar, I just use Corroseal.
                            How to remove, install or convert to pop out windows
                            http://www.r3vlimited.com/board/showthread.php?t=297611


                            Could be better, could be worse.

                            Comment


                              #15
                              love a feel good resto story

                              Comment

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