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Thread: E36 S54 Swap with GS6-37

  1. #1
    Join Date
    Nov 2007
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    E36 S54 Swap with GS6-37

    Hello Everyone,

    Posting here because I came across a lot of useful information on this site and I thought I share my process and of course, I need your help.

    I’m using this site to journal the process. Most of these parts were sourced already, such as the S54 and GS6-37, along with a few gaskets. The remaining big ticket items are the wiring harness, clutch, and radiator and fan.

    The first post will include updates as I go along, so expect edits on this post. I will probably change the parts list format later to incorporate other research.

    Just thought I begin the process now and get this thing running for the summer.

    Thanks for stopping by and reading…

    Thoughts on below?

    Parts List: Rev 2.0

    1. S54
      1. Wiring harness FCP Euro
        1. DIY

      2. DME
        1. Flash

      3. Engine mounts
      4. Relays still need
        1. https://www.bimmerforums.com/forum/s...9#post29465569

      5. Gaskets
        1. Oil pan gasket and filter still need
        2. Oil filter gasket
        3. Transmission gasket and filter
        4. Valve cover gasket and pcv valve and hose still need
        5. ITB’s gaskets
        6. water pump gasket
        7. thermostat gasket
        8. main coolant pipe gaskets

      6. Vanos
      7. Pressure/coolant plugs
      8. SAP delete plates still need
      9. PS
        1. You can either reuse the E36 M3 power steering pump with the E46 pulley (different diameter) or use the E46 M3 pump. If you use the E46 M3 pump however, you’ll need a one size larger banjo fitting since the banjo bolt is larger. Rest of the lines should land in the same place.
        2. Larger banjo still need
        3. pulley still need
        4. Bearings still need

    2. Transmission GS6-37/ Driveshaft
      1. DIY
      2. Crossmember
        1. Part 23702227892
        2. Bushings
        3. Carrier still need Ultimate Short Shifter - '96-'99 E36 M3 EURO 6-SPEED (EVO3) * INCLUDES CARRIER
          Ultimate Short Shifter - E36 M3 EURO 6-SPEED (EVO3)
          includes new carrier, carrier bushings, and cartridge bearings. USSE62 UUC

          Notes...
          S50B32 Euro M3 with the Getrag 420G and 210 mm diff, 6-bolt, came with a 1367mm long driveshaft (CV joint style).


          Euro driveshaft is 102 mm (4.015") shorter than NA, 6-bolt, CV style.
          Euro driveshaft is 125 mm (4.921") shorter than NA, 4-bolt, U-joint style.

      3. Tunnel wrap still need
      4. Cluth & Flywheel
        1. Flywheel & M5 hybrid Clutch Stage 2

      5. Detents
        1. DIY

      6. Linkage
        1. Shift arm
        2. Ultimate Short Shifter

      7. E36 325i slave cylinder
      8. Stainless steel line
      9. Pilot bearing 11211720310
      10. Extend or E36 auto driveshaft
        1. Euro

      11. Guibo

    3. Differential done
      1. Research
      2. 3.38
      3. Flange input shaft

    4. Dash
      1. E46 M3

    5. Oil
      1. Cooler Which lines are from and to
      2. Hanger clips

    6. Cooling
      1. Radiator S54 Z3M
        1. Bracket

      2. E-fan 2024 CFM
      3. Water pump with gasket
      4. Thermostat lower temp still need
      5. Expansion tank
      6. Mounting brackets 17111719190
      7. Coolant sensor and fitting
      8. Heater hoses
      9. Which hose connects to chassis

    7. Fuel
      1. e-Pedal
      2. FPR
      3. In tank pump
        1. DIY
          1. To run at higher fuel pressure, it's a good idea to run the E46 M3 pump assembly. Unfortunately, the whole assembly doesn't fit an E36 tank, but the pump itself can be swapped into an E36 pump housing, and the original E36 wiring can be reused.

    8. Exhaust
      1. Step down conversion
      2. Headers
      3. S50 Manifold bolts; longer
      4. the eurospec headers for the S54 will bolt up to any *euro* E36 M3 midsection designed to attached to the S50B32 headers
      5. exhaust gasket still need

    9. Steering
      1. If you use an E36 PS pump, you'll need the E36 PS pulley. If using the E46 pump, then you can use the S54 pulley. If you don't use the pulley that came with the pump, it will not line up with where the belt routes. E46 pump works but the AN fitting is larger so you lose being able to run E36 factory PS lines. S54 alternator will work fine.

    10. AC
      1. Keeping E46, get E46 adapter connectors still need
      2. Weld

    11. Body
      1. Front bumper lip
        1. trim fasteners
        2. mesh





    Last edited by M III; 04-26-2020 at 09:18 PM.

  2. #2
    Join Date
    May 2009
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    My Cars
    S54/E36,18 Sierra Denali
    There’s a solid 5 build threads on this, def scan them and add to your list. You have about 10% covered haha but it’s all relatively easy, now. I can edit a swap DME for you. Also if you need an exhaust, can build that too!

  3. #3
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    Pitt,

    It's been busy and I should of replied to you earlier. Yes, your build was one of the builds I researched and I even reached out to you before on some questions, so thanks again.

    After some research, I do have a question for the group tracking this one:

    I have a ZHP 5 speed now in the E36, I also have a a E46 ZHP driveshaft, do I
    + get the auto E36 drive shaft? not really feeling this route
    + is swapping out the E36 diff output flange on an option? this seems like the long way, since I do plan on swapping the diffs later on...or
    + swap out the diff from a E46 330i 3.38 that i have access to, figuring this route makes the most sense, will this fit the e36 chassis?

    Also, since I have the S54/GS6-37, the linkage, any OEM options to center on the E36? Do I need to go with the M54 flywheel because of the pilot bearing clearance or am I reading this wrong?

  4. #4
    Join Date
    Jul 2003
    Location
    Texas
    Posts
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    1997 M3/4/A
    Do you mean ZF 5 speed? I always thought the zhp came with 6 speed tranny’s.
    If you are gonna use the s54/6speed, get a custom driveshaft that is the correct length. The auto will work but it’s a little short where the splines connect.
    If you use the s54/ZF 5 speed, then it will be a direct fit

  5. #5
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    I have the ZF5 speed installed now, but I also have access to 3.38 from an auto E46 330I. If I use the 3.38, would it fit the E36 chassis? I'm thinking of using the ZHP drive shaft with the 3.38 and keep it moving.

  6. #6
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    1997 M3/4/A
    No, the diff and driveshaft will not work in the e36. What diff do you have on the e36 now?
    Which model e36 do you have?

  7. #7
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    I have a E36 328I ZF 5 speed.

  8. #8
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    How deep are your pockets lol,
    With the ZF, you can re use everything for now, but you will eventually need a E36 M clutch

  9. #9
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    Edited 1st post with updates.

    Quote Originally Posted by brokeazz View Post
    How deep are your pockets lol,
    With the ZF, you can re use everything for now, but you will eventually need a E36 M clutch
    I will use the 6 speed.

  10. #10
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    Will post more pics later.
    Attached Images Attached Images

  11. #11
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    How come I can't post high resolution pics? Also, anyone got the detents tool I can borrow?

  12. #12
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    Anybody know the drive shaft length needed? I will customize my e46 shaft I have now, I'm not able to put the car on a lift right now since s52 acting up on me. Any help appreciated.

  13. #13
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    3.38 on its way

  14. #14
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    99 Dakar M3
    Subscribed.

    You can use the forum to host your pics, cant you?

  15. #15
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    I haven't figured out the forum posting pics yet. Got the 3.38, just need transmission carrier, slave cylinder, drive shaft, and some mother miscellaneous pieces including an oil cooler which has been on back order for a while.

    Been busy working on other cars, plus its cold up north so...but still on it.

  16. #16
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    Yeah, forum won't let me add pic for some reason...so I have to host it elsewhere and the pic quality isn't so good

  17. #17
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  18. #18
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    F90 M5; E36 M3 Turbo
    I would have looked for a 3.38 lsd from an auto e36m3.

  19. #19
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    The other parts...Yes 3.38 should go in this weekend with current S52.





    Attached Images Attached Images
    Last edited by M III; 04-07-2019 at 08:02 PM.

  20. #20
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    Just a little update, I got the e36 325I clutch slave cylinder, e pedal, exhaust mid section, fuel pump, and fpr...By the way diff and angel eyes are in.

    Notes to self:
    I have a 1404mm driveshaft from e46
    I have a 1492mm driveshaft in e36

    I plan on shortening my e36 drive shaft.
    Last edited by M III; 02-21-2019 at 04:13 PM.

  21. #21
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    Hey, reading up on the wiring that was already posted and the ETM posted on webphones is for a 2001 Z3M, the wiring is slightly different. I really want to follow along and verify the wiring. I realize the X6004 has the most connections to the chassis.

    Does anyone have the E46 S54 ETM? Kindly send me a PM, looking to sort the wiring for the swap.

    Thanks in advance.

  22. #22
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    S54/E36,18 Sierra Denali
    There is no E46 M ETM, it’s a WDS. Google that and follow some links, there will be an active one somewhere.

    - - - Updated - - -

    x60004 will be just about the same and z3m etm is good for the swap

  23. #23
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    Pitt, I asked because the e-pedal Z3M wiring ETK is different than the wiring already posted on the board.

    For example, pin out of x6004, forum says pin 14 goes to pin 3 of the e-pedal, but in the Z3M ETK, pin 14 goes to pin 6 in the pedal.

    Thanks for the info and clarification, will look for WDS.
    Last edited by M III; 03-28-2019 at 01:33 PM.

  24. #24
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    Build it.

    Need to get AN for E46 PS hose.
    PS pulley
    CCV hose and connector
    Thermostat
    Missing screw in engine bracket
    Attached Images Attached Images
    Last edited by M III; 04-07-2019 at 07:50 PM.

  25. #25
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    Moving along...Epedal with wiring, drive shaft, and donor harness.

    Decided to go with the auto drive shaft and keep project going...

    Attached Images Attached Images
    Last edited by M III; 04-09-2019 at 07:35 AM.

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