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Helmut the e21

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  • retoropakR
    retoropakR
    retoropak
    wrote on last edited by
    #23

    New hubs and dust shields. I also have a set of reman calipers and brackets. 286mm brakes will do for now. I will look into some 4 pot wildwoods if the stockers will end up not sufficient.

    Helmut

    Freshly painted rear subframe

    Helmut

    I really like that SPI epoxy primer. Works great

    And the part that I did not enjoy at all. Hate the prep work.

    I need to wait for the radiator (e36 318i) to get the brackets fabbed and welded before I paint.

    I will hit it with two coats of epoxy followed by couple coats of single stage urethane.  

    Helmut

    Helmut

    1 Reply Last reply
    0
    • retoropakR
      retoropakR
      retoropak
      wrote on last edited by
      #24

      I did another test fit of the m42 last weekend and the gearbox will not clear the tunnel at least not tilted 30 degrees. 
       

      So in order to vert mount the m42 i will have to cut and shut the transmission. 
       

      The plan is to use ordinary angle grinder mounted on a jig/stand that will move/slide on the flat table where the transmission will be bolted. I don't need a lot of precision at this point. I will need a gap between the two pieces to weld it properly anyway. 
       

      What is important is to have the transmission perfectly centered/ coaxial with the crankshaft and to do that i am going to use the throwout bearing guide tube that bolts to the gearbox  

      Below is the picture of the guide tube with a bit bigger tube slipped over it  

      the larger tube has perfect ID (1.5”) to fit snugly over the guide tube and 60.5mm OD to fit the main bearings. I will weld it together and use it to center the transmission.  
       

      Then a pass or two on the outside and another one or two from the inside should hold the bellhousing without much problem.  
       

      Stay tuned. I should have it bolted in the car soon.

      Zf jig

      Zf jig

      1 Reply Last reply
      0
      • retoropakR
        retoropakR
        retoropak
        wrote on last edited by
        #25

        It felt wierd for a moment to chop perfectly good zf320 but oh well got to do what you got to do. 
         

        This is how much it will rotate.

        Chop chop

        A little angle grinder holder. It is also nice to have a flat table. 

        Chop chop

        Chop chop

        chop chop

        Chop chop

        And rotated. 
         

        Chop chop

        Now i need to pull my m42 block from e21 bolt the transmission and weld the bellhousing.

        1 Reply Last reply
        2
        • retoropakR
          retoropakR
          retoropak
          wrote on last edited by
          #26

          Transmission is welded on the outside. I will finish welding the inside tomorrow 

          Bellhousing bolted to the block

          Gearbox

          Magic wand

          Gearbox

          All bolted together

          Gearbox

          And welded

          Gearbox

          1 Reply Last reply
          4
          • The Full BananaT
            The Full BananaT
            The Full Banana
            wrote on last edited by
            #27

            You are a crazy man, Wojtek! Looking good

            Tom - I have a few BMWs, an overworked Volvo 242, and now a YouTube channel called Drive, Revive, Tinker

            1 Reply Last reply
            0
            • retoropakR
              retoropakR
              retoropak
              wrote on last edited by
              #28

              I finally found a driveshaft and test fitted transmission and motor. It came out that i made my oil pan 0.5" too long and will have to redo it. 

              A bit of CSB mount relocation will be required

              I started some engine mounts. I also ripped the whole wiring harness and will redo it along with the new fusebox. 

              I cleaned up and painted rear inner fenders and applied some brush on seam sealer for some extra protection. 

              E36 steering column is a pretty good fit. I will gain a cruise control stalk which I will need for some dash display controls. 

              Initially I got garagistic e30/m20 mounts but they are bolt thru which I am not a big fan of.  I ordered the revshift mounts.FCP shipped my radiator mounts and engine mounts and I should get em by Monday. I will finish the mounts next week and will modify the oil pan. Radiator and intercooler will be next.

              HelmutHelmut

              Helmut

              HelmutHelmutHelmutHelmut

              E21

              1 Reply Last reply
              2
              • YoungCRY
                YoungCRY
                YoungCR
                wrote on last edited by
                #29

                Is that just a universal fuse box?

                Chris Young
                BMWCCA #458972
                1986 528e/5  | 1994 530i/5 | 1995 540i/6 | 2013 X5 35d | 1998 C1500 Suburban | 1995 K2500 Suburban

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                • retoropakR
                  retoropakR
                  retoropak
                  wrote on last edited by
                  #30

                  YoungCR said:

                  Is that just a universal fuse box?

                  It is LittleFuse EPC . https://www.littelfuse.com/products/dc-power-distribution-modules/configurable-pdm/epc.aspx

                  Two separate buses, 9 relays, 27 fuses should be more than enough. Uses ip67 TE connectors

                  I also thought about this busman/Eaton but it has relay on every circuit.

                  https://www.waytekwire.com/item/46065/Dual-SSVEC-12VDC/?gclid=CjwKCAiAs92MBhAXEiwAXTi25yWbJ6SQQpt_pXWnZg-UyW1xzr7SP_NbntmXLOg5mJaHZgv6zz3WnxoC-gUQAvD_BwE

                  1 Reply Last reply
                  1
                  • retoropakR
                    retoropakR
                    retoropak
                    wrote on last edited by
                    #31

                    3 months later............

                    I had to redo the whole subframe. There was not enough room for decent size sump. Engine is mounted to the frame rails anyway so the middle section of the subframe was cut and pushed towards the front of the car. Don't mind crappy welds, once I hit it with some pretty epoxy paint it wont look that bad anymore.  It seems that I can tig aluminum better than I mig steel.   

                    Here is the oil pan that I hat to cut a little bit to sit flush with the subframe.

                    E21

                    E21

                    E21

                    I also put together lower radiator mounts. It uses stock e36 plastic mounts that sit on steel brackets welded to the frame rails. There is enough room in front of the radiator to fit 3" intercooler.

                    E21

                    I also got a new daily driver. I got rid of my xc70 and got F32.  That b58 and zf 8spd combo is amazing. 

                    E21

                    1 Reply Last reply
                    2
                    • YoungCRY
                      YoungCRY
                      YoungCR
                      wrote on last edited by
                      #32

                      Progress is progress! Happy to see updates on this. Congrats on the newer daily too.

                      Chris Young
                      BMWCCA #458972
                      1986 528e/5  | 1994 530i/5 | 1995 540i/6 | 2013 X5 35d | 1998 C1500 Suburban | 1995 K2500 Suburban

                      1 Reply Last reply
                      0
                      • retoropakR
                        retoropakR
                        retoropak
                        wrote on last edited by
                        #33

                        Since the engine sits upright the stock m42 manifold (e30) or ugly e36 one won't work anymore. Miata folks are adapting honda intakes with pretty good results. After some research I decided to get a Honda b series manifold and try to fuse it with m42 intake flange. Spacing is the same +/- 2-3 mm so it should line up fairly well.

                        It will get bosh DBW throttle body either in 68mm or ill go size up to 82mm if it fits. 

                        Its a pro series so I expect some pro results 😁. Sadly It will sit upside down so that beautiful logo wont be visible. 

                        Intake

                        Intake

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                        • retoropakR
                          retoropakR
                          retoropak
                          wrote on last edited by
                          #34

                          I tried honda B series manifold and it sat too low. Then I tried volvo whiteblock without one cylinder and it was a bit off spacingwise and also sat too close to the firewall.

                          Volvo manifoldVolvo manifold

                          I figured its time for some custom manifold. I got some trumpets, plenum and a bit of a runner pipe. Flange is also on its way.

                          Random

                          In the meantime I started wrapping up some other bits.

                          I welded shock mounts for the trailing arms. I started working on oil pickup and also threaded some holes for the windage tray. That cheapo oil pan came with windage tray mounts without any threads. Also internal oil pickup passage has a burr that obstructed 40-50% of the opening. 

                          Random

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                          0
                          • retoropakR
                            retoropakR
                            retoropak
                            wrote on last edited by
                            #35

                            I finished transmission  mount.

                            Helmut

                            Stock fuel tank wouldn't fit with e28 rear subframe so I had to trim it a little bit.

                            Helmut

                            I started mocking up intake plenum to see if it will fit with a stock booster. The verdict is: I need boosterless brakes. I will try to fit floor mount Wilwood pedals and if it wont work I might go with firewall mounted ones. There is just not enough room for a booster even e90 one with vert mounted motor.

                            Helmut

                            1 Reply Last reply
                            1
                            • retoropakR
                              retoropakR
                              retoropak
                              wrote on last edited by
                              #36

                              I started putting together manifold. Just some mockups for now to figure out injector positions and angles.

                              I also got a set of wilwood floormounts that i am trying to fit. Looks like  pedal position will be close to stock

                              Helmut

                              HelmutHelmutHelmut

                              1 Reply Last reply
                              2
                              • retoropakR
                                retoropakR
                                retoropak
                                wrote on last edited by
                                #37

                                First part of the manifold is tacked up. injector angle could have been a bit shallower but I don't think it will have significant negative effects on performance.

                                HelmutHelmut

                                1 Reply Last reply
                                1
                                • retoropakR
                                  retoropakR
                                  retoropak
                                  wrote on last edited by
                                  #38

                                  And intake is almost done. All tack welded and ready to be finished. I got some 1/4" plate to do the end cap and to add some reinforcemnt for vacuum fittings.

                                  I will use bosh motorsports dbw throttle body. I am shooting for anything between 350-500whp. I think that 68mm throttle should do. The next size up is 82mm but I worry it will be too twitchy and drivability will suck. 

                                  Holesaw setup to cut 3" holes for trumpets

                                  Holesaw

                                  A little mockup with two runners to check the position of the plenum

                                  Intake

                                  All 4 runners in. 

                                  Intake

                                  Intake

                                  Intake

                                  Fuel Rail

                                  Intake

                                  1 Reply Last reply
                                  2
                                  • P_RoloffP
                                    P_RoloffP
                                    P_Roloff
                                    wrote on last edited by
                                    #39

                                    Holy smokes, this is cool. That intake looks awesome, super excited to see that come to fruition. How is the throttle body going to be mounted, out the end of the manifold towards the front of the car or out of the side like an OEM one?

                                    1 Reply Last reply
                                    0
                                    • m42b32M
                                      m42b32M
                                      m42b32
                                      wrote on last edited by
                                      #40

                                      This is awesome! A 350hp+ M42 is going to be a riot.

                                      1991 318is, 1991 318i, 2022 Bronco

                                      1 Reply Last reply
                                      0
                                      • retoropakR
                                        retoropakR
                                        retoropak
                                        wrote on last edited by
                                        #41

                                        P_Roloff said:

                                        Holy smokes, this is cool. That intake looks awesome, super excited to see that come to fruition. How is the throttle body going to be mounted, out the end of the manifold towards the front of the car or out of the side like an OEM one?

                                        Throttle will be in front of the manifold.

                                        1 Reply Last reply
                                        0
                                        • retoropakR
                                          retoropakR
                                          retoropak
                                          wrote on last edited by
                                          #42

                                          I welded up the manifold. It was a pain. My 200amp tig had some trouble welding 1/4" plenum with the trumpets. Trumpets were quite thick with some sections close to 1/2" or more. I could use 50amps more.
                                          I added fuel rail brackets and end cap. I also ordered bosch motorsports 68mm DBW throttle. I still need to get the weld-on flange for this throttle.

                                          I ditched floor mounted pedals and get hanging pedal setup. I whipped new firewall plate and added the e36 column mount

                                          Helmut

                                          Helmut

                                          Helmut

                                          Helmut

                                          Helmut

                                          1 Reply Last reply
                                          0

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