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m50/m20 stroker crank spacers!

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    m50/m20 stroker crank spacers!

    Hi all, must apologise for my lack of posts on here, my friend Gunni (GSTuning) referred me onto here as a lot of people are doing cool stuff to their e30s, and in the UK we mostly have e30zone which is 95% into detailing and full BMW toolkits.

    Anyway, I have no practical knowledge/experience of this, but apparently, you can fit an m50/2 or s50/2 crank into an m20 block, using various piston/rod combos, and get a much bigger capacity m20 engine. The downfall is, however, that the nose of the crank where the front oil seal sits is too short on the m/s50 items, leaving oil to gush out of the front of the engine.

    I have access to a professional machine shop (and the guys who work there) so I got a few crank spacers made up to seal the crank/oil etc, for Gunni. He has used a couple in his engines but I still have 5 extra that I had made in the first batch.

    These are precision ground items, with a keyway in for the pin on the crank, and precise tolerances to slide over the crank and inside the oil seal. Due to the tolerances and need for grinding and the keyway etc the price rose a lot. Since I no longer own an e30, and all my friends are tame, I have no use for these anymore and would just like to get my money back. Obviously, more can be made if people want them.

    Here are some pictures,





    These are in the UK, and the price is 45GBP each. Postage works out, to the USA, to be around 5GBP according to the Royal Mail website and the price of packaging.

    Please excuse the pictures, the items are brand new and have been kept in a plastic bag, oiled up, for a few months, so have a few bits of handling crap on them. They would be posted after cleaning and a light oiling to ensure they do not get corroded in transit.

    Any questions, please do not hesitate to ask. I'll ask Gunni if he can post his experiences with these and to clarify where they fit and how they are used. Cheers.

    PS - I accept paypal, I can post up my address if there's interest.

    Cheers,

    Mike

    #2
    Whats that in US dollars?

    Very interested.

    Comment


      #3
      50 GBP = $83.73, according to google's current transfer rate
      '89 325i track sloot
      '01 530i daily

      -Enginerd

      Comment


        #4
        If someone just wants to take them all off me then give me (40gbp x 5= 200) 200gbp.

        That's $334 for all 5.

        Or

        $75 each according to www.xe.com

        Plus postage whatever that works out at when I get to the post office.

        Cheers guys.

        Comment


          #5
          Very interested. Will buy one on Friday.

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            #6
            what kind of piston rod / combination would work wit this? (i am just super curious)
            sigpic

            Originally Said by Bob Marley
            "BMW make pure trouble!"

            Comment


              #7
              Stock I pistons, eta rods and M52 crank.

              Comment


                #8
                Would yield a M20 2.8 stroker?


                Originally posted by Danny View Post
                Stock I pistons, eta rods and M52 crank.
                93 E30 325ic BrilliantRot M20B25 TCD S2+ GS637BZ CT3582R MS2


                Bought from or sold to me?
                http://www.r3vlimited.com/board/showthread.php?t=200290

                Comment


                  #9
                  Correct, with 9.7:1 comp ratio.

                  Comment


                    #10
                    OK Danny that's cool. I'll put one by for you. My paypal is michaelgaynor@hotmail.com, so send some money with your address there and drop me a PM on here to confirm etc.

                    Comment


                      #11
                      Roger that. I'll send it Friday.

                      Comment


                        #12
                        Good stuff, cheers.

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                          #13
                          Bump :D

                          Comment


                            #14
                            I want I want. I'm definitely buying one just even though I have no immediate need, just cuz when I did want one the asshats at metric mechanics wanted $250 for the same thing. They may have even said it needs to be super strong so they use some expensive alloy, I don't know if they meant steel or aluminum, either way they get them made in bulk I'm sure and charging $250 is highway robbery. Sending fiddy quid to your paypal now

                            Comment


                              #15
                              Mossman, no problems. It doesn't really have any load on it as AFAIK it's just an oil seal but either way these have a ground finish which is the important bit and tight tolerances. Chances are, using an expensive alloy will contaminate the crank.

                              Just checked my paypal not received it yet, but as soon as I do I'll get your spacer packaged up and in the post. If you could send it sooner than later, that'd be very useful as I can get it sent off with some other items I'm sending.

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