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Thread: 1994 BMW 318is M52 Swap & Turbo Build

  1. #26
    Join Date
    Nov 2016
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    Finished pulling the engine out of the 318is this weekend. Now I can progress onto the engine bay. I plan on doing a semi-shave and wire tuck to make things nice and clean. I also purchased a 4 clutch LSD upgrade from Thayer and exchanged the BW S257 for an S362sxe (0.88 a/r, open scroll) to better match the 3.2 liter engine.

    I better friggin love driving this car after all the time and $$ spent...









  2. #27
    Join Date
    Jul 2008
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    FL
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    are slow.
    LOL! What a complete change in the build. Awesome choice on turbo, you can make a TON of power with that thing.
    "Be who you are and say what you feel because those who mind don't matter and those who matter don't mind."
    -Dr. Seuss
    DIY BMW Tools. Charlie For President

  3. #28
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    Ha I know right. Things kinda snow-balled after my M50/M52 engine plan was aborted.

  4. #29
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    Nov 2016
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    I have made some progress on the engine bay. So far I have nearly all of the seam sealer removed from around the strut towers. I used a wire wheel attachment on an angle grinder. For the narrow space between the strut tower and fender I used a small wire wheel cup style brush on a cordless drill. I also used a Dremel with cut-off discs to remove the brackets I won't be reusing (washer fluid reservoir, cruise control, air intake box, etc.).

    In addition, I cut the front auxiliary wiring harness that runs along the inside of the driver's side fender. I then drilled a hole through the inner fender and fished the front section of the cut harness through the body channel that contains the hood latch cable. I then sprayed self-etching epoxy primer on the cut metal at the drilled hole for rust prevention and slid a rubber grommet over the harness and into the hole for a nice clean installation.

    I started soldering the wires yesterday to reconnect the cut harness sections. I am continuity testing each solder connection with a multi-meter to hopefully avoid any electrical headaches when everything is put back together. I expect to have the engine bay ready for paint within the next 2 weeks. In the mean time I will also be upgrading the steering rack to a Z3 unit and installing front strut tower reinforcements. Here are some pics of the engine bay "shaving" and wire tuck.

















  5. #30
    Join Date
    Sep 2017
    Location
    Netherlands
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    121
    My Cars
    e36 328i turbo
    Did you really just cut into your wiring loom?..

    Nice progress!
    curious about your wire tuck proces.

  6. #31
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    Nov 2016
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    Fortune favors the brave!

    But yeah, I was certainly a little "puckered" while cutting the harness. Here's to hoping it works out.

  7. #32
    Join Date
    Mar 2013
    Location
    Upstate NY
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    M3
    Nice choice with the turbo. Borg Warners S300 frame will not disapoint!!! Keep it up man.

    Looks like you took the long way for the wire loom too. I just cut a U in the chassis and folded the metal back down. Something you never see with the fender there. Saves from a tooooon of wiring.
    Last edited by Mklock; 01-21-2020 at 01:30 PM.

  8. #33
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    Quote Originally Posted by Mklock View Post
    Nice choice with the turbo. Borg Warners S300 frame will not disapoint!!! Keep it up man.

    Looks like you took the long way for the wire loom too. I just cut a U in the chassis and folded the metal back down. Something you never see with the fender there. Saves from a tooooon of wiring.
    Where exactly did you make your cut in the chassis? I'm trying to envision the location because I felt like I would have needed to make a rather large cut in order to fish the harness down from the top (near the fuse box) with all the connectors and plugs still attached.

  9. #34
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    Mar 2013
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    M3
    Take your fender off, almost identical where you have your hole just a little higher. The only issue I had was the cruise control plug. Rest just comes out by the signal corner ligh and travels like factory after that.

    I got some photos in my build thread if you can find it. Probably have to zoom in but you can see it.
    Last edited by Mklock; 01-21-2020 at 02:44 PM.

  10. #35
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    Yes, I checked out your thread after your prior post. I see what you did. Your method came out good and is definitely easier. Oh well. Live and learn!

  11. #36
    Join Date
    Jul 2013
    Location
    Tacoma, WA
    Posts
    207
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    E36 M3 turbo, E90 M3 ZCP
    This build is looking great so far, really glad more people are doing a tuck and shave, it was a PITA for me as well but it’s one of the most commented on things when my hood is up! What did you decide on for a clutch with the now built 3.2 and s362?
    1995 M3 coupe GTX3582R powered
    2011 M3 sedan ZCP

  12. #37
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    Nov 2016
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    Quote Originally Posted by 95AWM3 View Post
    This build is looking great so far, really glad more people are doing a tuck and shave, it was a PITA for me as well but itís one of the most commented on things when my hood is up! What did you decide on for a clutch with the now built 3.2 and s362?
    Thanks dude, and thanks for answering my questions!

    For the clutch, I went with a DKM Twin Disc kit.

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