Announcement

Collapse
No announcement yet.

91 318is/ LS Swap

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    91 318is/ LS Swap

    Just started my swap, Iíll be posting updates and questions as I go along. Iíve read Garretís swap thread and a few others but I still have some technical/personal preference questions. First one being the wiring harness, I found the wiring specialties harness for $765 but my question is is it worth it? Should I just get the LS harness and adapt it to the C101 connector? Which one did you go with and why?

    As far as the swap goes, Iím still gutting everything out, engine and transmission are out but still pulling wiring harness and ďotherĒ wiring the previous owned installed. Still havenít decided on the engine, leaning towards an LM4 or L33 because of the aluminum block. More to follow as I finish the gutting.

    Dave

    #2
    Hey Dave, Iíve already completed the swap. I would recommend doing the harness yourself, you will have to de-pin and identify all wires. Eliminate the ones you donít need (about half) and put it back together. I used a painless wiring braided loom kit to neatly wrap all wires. Turned out amazing. Youíll get sick of staring at wiring diagrams but itís worth it and itís good to know what every single wire does. Youíll also need a fuse block of sorts thereís many out there.

    Keep us posted.

    Nick


    Sent from my iPhone using Tapatalk
    -Nick

    Comment


      #3
      Originally posted by Tubesock View Post
      is it worth it? Should I just get the LS harness and adapt it to the C101 connector? Which one did you go with and why?

      I recall several people having problems with the pre-made harness at the time I was doing my swap. Slight variances in the e30 harness(C101)over the years. Once you de-pin and know what you actually need to connect to the car it truly is simple. You can buy the C101 and pins online to create a completely stock looking install. Personally it was an opportunity to say I did it, learn my cars wiring, knowing it was done properly, and saving $800 to use more constructively.

      Nick




      Sent from my iPhone using Tapatalk
      -Nick

      Comment


        #4
        What did you do about the radiator?

        Comment


          #5
          Originally posted by Tubesock View Post
          What did you do about the radiator?


          Iím running a griffin dual pass part number 1-28222-XLS. I had a mishimoto r32 radiator and was not happy, and I will gladly call anything mishimoto junk. But if youíre on a budget Iíll sell it to you cheap. Itís got nothing wrong with it. The griffin radiator is top notch. Note that I have sikky mounts which seat the engine as far back as it can, some mounts the engine sits forward more. Also note I am using an LS1 water pump and have plenty of clearance.


          Sent from my iPhone using Tapatalk
          -Nick

          Comment


            #6
            Were you able to use the stock mounts or upper bracket?


            Sent from my iPhone using Tapatalk

            Comment


              #7
              91 318is/ LS Swap

              Originally posted by Tubesock View Post
              Were you able to use the stock mounts or upper bracket?
              I used griffin universal mounts part number KD-00050. Get a nice rivnut set up and the mounts bolt on like factory. In fact i think the lower mounts bolted onto the core support using existing holes. Obviously I have a pusher fan, cannot find the part number or remember which fan I bought. Best not to cheap out on the fan. Although with this radiator I rarely ever need the fan it takes a long time for the griffin to heat soak.


              Sent from my iPhone using Tapatalk
              -Nick

              Comment


                #8
                I also have Griffin rad and wired the car myself. If your planning on adding a power adder like a turbo or supercharger I would go with a gen IV LS. I have the LC9 it's an aluminum block like you want but has stronger internals.
                sigpic

                https://www.r3vlimited.com/board/sho...d.php?t=420591 5.3 LSA build in progress :devil:

                Comment


                  #9



                  Sent from my iPhone using Tapatalk
                  -Nick

                  Comment


                    #10
                    I'll have to consider that griffin radiator. It looks like a good setup
                    1989 325i LS Swap (Money Pit):https://www.r3vlimited.com/board/sho...d.php?t=244933
                    COTM Feb 2019: https://www.r3vlimited.com/board/sho...d.php?t=428404

                    Comment


                      #11
                      Yes sir even has a port for the steam tube.


                      Sent from my iPhone using Tapatalk
                      -Nick

                      Comment


                        #12
                        Hey tubesock. I'm right here with you on the swap. I'm rocking a 91' 318is and just picked up and L76 6.0 out of my cousin's vortex max. The L76 is basically an Ls2 but with dod (v4 mode). What are you planning on running for a transmission? I want a t65 or tr6060. But the price and availability sucks. And sadly 5 speeds are plenty in my area. The pin out on GM's isn't that bad. As buddy said above, you will get sick of starting at wiring diagrams. But follow it. And shouldnt be to bad

                        Comment


                          #13
                          I took a different route, since I was already planning on using Aerocatch hood latches, I got rid of the hinge, the hood popper, and put my radiator in the core support, using a Summit 381324 radiator. Took some modification at the bottom of the core, but allows me room to run a massive Ford Fusion puller fan setup.



                          Comment


                            #14
                            Originally posted by acefreely02 View Post
                            Hey tubesock. I'm right here with you on the swap. I'm rocking a 91' 318is and just picked up and L76 6.0 out of my cousin's vortex max. The L76 is basically an Ls2 but with dod (v4 mode). What are you planning on running for a transmission? I want a t65 or tr6060. But the price and availability sucks. And sadly 5 speeds are plenty in my area. The pin out on GM's isn't that bad. As buddy said above, you will get sick of starting at wiring diagrams. But follow it. And shouldnt be to bad
                            Guys are using the CD009 (Nissan 350 transmission). You can find them for around $800 bucks used. Here is the adapter plate needed http://collinsadapters.com/index.php...ter-plate.html

                            CD009 Gear Ratios
                            3.78
                            2.32
                            1.62
                            1.27
                            1.00
                            0.79


                            T56 Gear Ratios 1996Ė1998 Camaro/Firebird (Ratios can be slightly different depending on donor)
                            2.66
                            1.78
                            1.30
                            1.00
                            0.74
                            0.50
                            sigpic

                            https://www.r3vlimited.com/board/sho...d.php?t=420591 5.3 LSA build in progress :devil:

                            Comment


                              #15
                              Does the CD009 fit in the transmission tunnel without hammering?


                              Sent from my iPhone using Tapatalk

                              Comment

                              Working...
                              X