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m30b35 vs s52b32.....really

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    #1

    m30b35 vs s52b32.....really

    I've read and read at nausium over both engines, YouTube'd them all.

    This year is the year I lose the m20b25 from my e30 vert.

    It was boosted (short period) last summer and I had a bad experience with a boost build, so I'm sticking with n/a.

    I'm not a "fast" driver. I love torque, and feeling the power of the engine, getting thrown back into your seat sorta thing.

    With that said, I was researching s52...yet m30b35 numbers are quite close in comparison....

    Has anyone done both swaps? Which was easier?

    Just bite the bullet with the s52+zf which is going to be pretty costly, or is the m30b35 which is a fraction I the cost, and a seemingly easier swap...


    I'm at a cross road now...
    Thoughts?
    Originally posted by flyboyx
    i have watched my dog lick himself off a few times
    Tags: None
    #2
    S52 will be much easier. The M30 is a BIG motor.

    That said, the M30 will get you more of that low end torque you are after.
    2006 GMC Sierra 2500HD 4WD LBZ/Allison
    2002 BMW M3 Alpinweiß/Black
    1999 323i GTS2 Alpinweiß
    1995 M3 Dakargelb/Black     - S50B32/S6S420G/3.91
    1990 325is Brilliantrot/Tan
    1989 M3 Alpinweiß/Black

    Hers: 1996 Porsche 911 Turbo Black/Black
    Hers: 1988 325iX Coupe Diamantschwartz/Black 5spd

    sigpic

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      #3
      M30 bai bay.

      It's God's engine.....just needs some help getting onto God's chariot.
      1974.5 Jensen Healey : 2003 330i/5

      Comment

        #4
        What rpms do you normally shift at ?
        Lorin


        Originally posted by slammin.e28
        The M30 is God's engine.

        Comment

          #5
          http://www.r3vlimited.com/board/showthread.php?t=312390&highlight=m30b35


          Buy mine! Complete swap ready to go for the price of an s52 long block ;D

          Comment

            #6
            Good question for comparison. Im also undecided on whether to go boost but i still might since I have an unmolested 70k mile m20.

            Comment

              #7
              Originally posted by LJ851 View Post
              What rpms do you normally shift at ?

              Normal driving 2800-3200
              Spirited jaunt 5500+++
              Originally posted by flyboyx
              i have watched my dog lick himself off a few times

              Comment

                #8
                Originally posted by frankie591 View Post
                http://www.r3vlimited.com/board/show...ghlight=m30b35

                Buy mine! Complete swap ready to go for the price of an s52 long block ;D
                Frankie you in Ontario?

                My main concern over M30's are quite simple.
                They're tired for the most part, whereas S52's are still quite new.

                The more I look into this, the S52 swap actually looks much easier when compared to the M30...especially when you have companies like Markert and TRH offering up plug and play C101's and coolant temp sensor re-threads. ZF's are a direct bolt up too.

                M30 swap seems a bit more laborious, and you need to get the engine positioned *exactly* right...

                I dunno I dunno!!!

                I'd like to start collecting parts soon..but parts for which swap is the question.

                I'm doing everything myself in my garage..I have hand tools, and air tools, engine stand and cherry picker..I'm pretty much set facility-wise.
                Originally posted by flyboyx
                i have watched my dog lick himself off a few times

                Comment

                  #9
                  m30b35 vs s52b32.....really

                  M30b35 or s54. S50/2s are soo 2010
                  sigpic

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                    #10
                    I don't have s54 money.
                    Originally posted by flyboyx
                    i have watched my dog lick himself off a few times

                    Comment

                      #11
                      Originally posted by Mr. Burns View Post
                      Frankie you in Ontario?

                      My main concern over M30's are quite simple.
                      They're tired for the most part, whereas S52's are still quite new.

                      The more I look into this, the S52 swap actually looks much easier when compared to the M30...especially when you have companies like Markert and TRH offering up plug and play C101's and coolant temp sensor re-threads. ZF's are a direct bolt up too.

                      M30 swap seems a bit more laborious, and you need to get the engine positioned *exactly* right...

                      I dunno I dunno!!!

                      I'd like to start collecting parts soon..but parts for which swap is the question.

                      I'm doing everything myself in my garage..I have hand tools, and air tools, engine stand and cherry picker..I'm pretty much set facility-wise.
                      I'm in waterloo. Really all that is needed for the swap is to knock the firewall back an inch right where the head sits. Everything else bolts right up, custom engine mounts, trans mount, driveshaft, cooling system all there ready to go. My plan if I keep the motor is to use the m20 engine harness I pull off my motor, it needs a few wires lengthened, but all connectors plug right into the m30 sensors, and obviously since it's an m20 harness it plugs right into the c101.

                      The simplicity of the m30 is the beauty. Cheap sensors, not overly complicated with expensive sensors that need replacing etc. The m52 I got for my other car only had 100k on it, and although the compression tested excellently, I still had to drop about 800 bucks replacing sensors and gaskets.

                      Comment

                        #12
                        I just came to this thread with one question:


                        what is better vr6 or 1.8t?
                        Build Threads:
                        Pamela/Bella/Betty/325ix/5-Lug Seta/S60R/Miata ITB/Miata Turbo/Miata VVT/951/325xi-6

                        Comment

                          #13
                          Mr. Burns, did you not have a thread like this regarding the M60 vs S52 engine? What happened to that idea? Not trying to sound rude or anything, just intrigued as to what may have changed your mind.
                          Originally posted by 36brua
                          Isn't that what these forums are all about making stuff easier... OO no never mind this is r3v...
                          Patryk:up:
                          Instagram: @parkus08

                          91 BMW 325is ///M-Tech II
                          08 VW .:R32
                          04 Audi A4 Avant 1.8TQ

                          Comment

                            #14
                            Originally posted by Mr. Burns View Post
                            Normal driving 2800-3200
                            Spirited jaunt 5500+++


                            M30 all day long.
                            Lorin


                            Originally posted by slammin.e28
                            The M30 is God's engine.

                            Comment

                              #15
                              Originally posted by Julien View Post
                              I just came to this thread with one question:


                              what is better vr6 or 1.8t?
                              Ummm.....Donno if SRS.....
                              1974.5 Jensen Healey : 2003 330i/5

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