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Thread: Almost done with build and I need some help. Swapped and boosted e36 m3.

  1. #1
    Join Date
    Oct 2018
    Location
    Eugene
    Posts
    41
    My Cars
    Working on it

    Almost done with build and I need some help. Swapped and boosted e36 m3.

    I am swapping a m50b25nv into my 95 m3 chassis, and I need a few questions answered.

    Important Info:
    I am using the engine wiring harness that came with the m50.
    I purchased the long block with no knowledge of its condition. There are some things I have no way of knowing.

    Does the 20 pin connector need to be repinned at all? It fits obviously, but I want to make sure the right things get connected.


    The relays pictured are on the opposite side of the engine bay compared to where they were on the s50 harness. I planned on mounting them near their current location and running like that. Will that be ok? Also, it looks like I am missing a relay. It was like this when I bought it. Lastly, the terminal post on the end... I believe it is where the oxygen sensor heater relay hooks up? Which I no longer need. I just want to make sure.


    This just grounds to the chassis correct?


    The connector i'm holding here... What does it connect to? Sorry about the relays in the background.


    Does this connect to the power distribution block?


    This is the clearance between my RSI manifold and the inner fender. I just want to double check that this is enough before I torque everything down. I have brand new oem engine mounts and poly transmission mounts if that matters.


    Lastly, here is a pic of the engine bay as of tonight.


    Please don't give me too hard a time about putting a non vanos m50 into a m3. The engine was originally going to be used in a simple e30 project, but I got a great deal on this m3 (that needed an engine) and thought why not.

    The goal is 500 whp on pump gas. I'm guessing roughly 20 psi. Likely meth injection.

    It's got:
    Block and head machined
    8.5:1 Wiseco pistons
    Eagle H beam rods
    Cut ring head gasket
    ARP head studs
    RSI manifold
    Literally new everything... I spent a lot of unnecessary money to be honest.
    Borg Warner 275 sx-e turbo .63 A/R
    CX-Racing intercooler kit (modified)
    Tial 50mm BOV
    Tial MVR 44 wastegate
    VEMS standalone

    Thanks in advance for any help, and if anyone has any questions or want to see more pics just ask. I have been working on this project for a year and a half now, and I am so excited about the first startup!
    Last edited by E30round2; 02-24-2020 at 01:08 AM.

  2. #2
    Join Date
    Jun 2001
    Location
    hell
    Posts
    1,512
    My Cars
    turbo e36 m3/ stock s50/e30 m3
    I would just get an obd1 wiring


    96 M3, GT4094R, Arrow Rods, CP Pistons, Elring HG, O-ring, 11 mm ARP studs,MS3pro, EMC Intercooler, Southbend clutch, ZT-2 wideband, Zionsville Radiator, X-brace, H&R springs with bilstien shocks, QTP electronic cutout, Line Locks, stock exhaust 455rwtq, 453rwhp at 14 psi 91 octane.......684rwtq, 681rwhp at 24 psi running flex fuel E60 at time of dyno tune.

    88 s50 m3 gt35r turbo,JE pistons, Eagle Rods, H&R springs with bilstein shocks,Ron Staygar short shifter, MS3pro, linelocks, southbend clutch

  3. #3
    Join Date
    Oct 2018
    Location
    Eugene
    Posts
    41
    My Cars
    Working on it
    They are both obd1

  4. #4
    Join Date
    Jun 2001
    Location
    hell
    Posts
    1,512
    My Cars
    turbo e36 m3/ stock s50/e30 m3
    Quote Originally Posted by E30round2 View Post
    They are both obd1
    Im sure they are, but I was referring 93-95 wiring harness. Not really sure if the pin-outs are any different other than the vanos wiring between a vanos wiring and nv wiring.


    96 M3, GT4094R, Arrow Rods, CP Pistons, Elring HG, O-ring, 11 mm ARP studs,MS3pro, EMC Intercooler, Southbend clutch, ZT-2 wideband, Zionsville Radiator, X-brace, H&R springs with bilstien shocks, QTP electronic cutout, Line Locks, stock exhaust 455rwtq, 453rwhp at 14 psi 91 octane.......684rwtq, 681rwhp at 24 psi running flex fuel E60 at time of dyno tune.

    88 s50 m3 gt35r turbo,JE pistons, Eagle Rods, H&R springs with bilstein shocks,Ron Staygar short shifter, MS3pro, linelocks, southbend clutch

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