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6/83 grey market 323i.. mtech I S50 5-lug

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    *cough* M60 *cough*

    lol
    Dumpster Fire Pilot

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      I got excited last night because I know someone who has a refreshed S52 block, but now I see you're looking for a S50 block... booo
      Simon
      Current Cars:
      -1999 996.1 911 4/98 3.8L 6-Speed, 21st Century Beetle

      Make R3V Great Again -2020

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        Originally posted by 2mAn View Post
        I got excited last night because I know someone who has a refreshed S52 block, but now I see you're looking for a S50 block... booo
        He can just sleeve those 3 cylinders there is nothing wrong with doing that. I know many people that have done it and couple that are running sleeved s5x's in race cars with zero issues. plus sleeving a cyl is like 60 a pop. that will be far cheaper then a new rotating assembly


        1989 325is l 1984 euro 320i l 1970 2002 Racecar
        1991 318i 4dr slick top


        Euro spec 320i/Alpina B6 3.5 project(the never ending saga)
        Vintage race car revival (2002 content)
        Mtech 2 turbo restoration
        Brilliantrot slick top "build"

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          sleeving cylinders is unfortunately not 60 a pop in the bay area

          also I want new pistons anyway cause these are all pocked up
          cars beep boop

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            Originally posted by 2mAn View Post
            I got excited last night because I know someone who has a refreshed S52 block, but now I see you're looking for a S50 block... booo
            yeah, I want to keep the s50 block cause bay area referees actually look at the numbers on it
            cars beep boop

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              Is your crank still good? Can you just go to the S52 piston size? It nets you ~3025cc and makes it a slightly overbore setup.
              Last edited by 2mAn; 05-19-2016, 10:10 AM.
              Simon
              Current Cars:
              -1999 996.1 911 4/98 3.8L 6-Speed, 21st Century Beetle

              Make R3V Great Again -2020

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                s52 pistons need s52 crank

                edit: wrist pin is higher on s52 pistons because longer crank throw
                Last edited by kronus; 05-19-2016, 10:13 AM.
                cars beep boop

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                  Originally posted by kronus View Post
                  s52 pistons need s52 crank
                  why? Im not challenging you, just curious.

                  I would even be tempted to use a M52 crank if you could and make it a real overbore setup with a 86.4mm bore and 84mm stroke. Still would be considered a 3L (2955cc)
                  Simon
                  Current Cars:
                  -1999 996.1 911 4/98 3.8L 6-Speed, 21st Century Beetle

                  Make R3V Great Again -2020

                  Comment


                    Originally posted by 2mAn View Post
                    why? Im not challenging you, just curious.

                    I would even be tempted to use a M52 crank if you could and make it a real overbore setup with a 86.4mm bore and 84mm stroke. Still would be considered a 3L (2955cc)
                    s52 pistons with an s50 crank will lead to very low compression, the wrist pin height is higher on s52 pistons due to longer crank throw.

                    I haven't looked at nonstandard builds yet.. not sure that there's a convenient piston that I can use with an 84mm stroke crank.
                    cars beep boop

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                      Originally posted by kronus View Post
                      sleeving cylinders is unfortunately not 60 a pop in the bay area

                      also I want new pistons anyway cause these are all pocked up

                      Well that sucks. Here I can get it done for 60 with labor or sometimes just for the cost of the sleeve. Whats a sleeve run out there?


                      1989 325is l 1984 euro 320i l 1970 2002 Racecar
                      1991 318i 4dr slick top


                      Euro spec 320i/Alpina B6 3.5 project(the never ending saga)
                      Vintage race car revival (2002 content)
                      Mtech 2 turbo restoration
                      Brilliantrot slick top "build"

                      Comment


                        Originally posted by kronus View Post
                        s52 pistons with an s50 crank will lead to very low compression
                        Booooooooost????
                        -Christian

                        '02 ///M3 CarbonSchwartz 6MT daily beast
                        08/91 Mtechnic II 325IC alpine/lotus
                        318iS, slow build/garage queen...
                        '37 Chevy pickup, the über project
                        Originally posted by roguetoaster
                        Be sure to remind them that the M42 is one of the best engines ever made, but be sure to not mention where it actually falls on that list.

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                          6/83 grey market 323i

                          Nice 5 lug [emoji6]

                          Running e30 m3 rear brakes?


                          Sent from my iPhone using Tapatalk

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                            Originally posted by pandaboo911 View Post
                            Nice 5 lug [emoji6]

                            Running e30 m3 rear brakes?
                            yup, e30 M3 rears. got my hands on a set of caliper carriers and didn't see a need to figure out something bigger.


                            engine updates, got it torn down. here's some photos from the process.







                            an example of the scoring i'm dealing with:




                            In good news, I traded the S50 crank to Eric for his S52 crank and pistons, and arranged with Rebello to get the block boiled and bored out to 86.4mm, which should be happening in the next few weeks.

                            In the meantime, I am looking at bottom end bearings. Glyco's ok, yeah?
                            cars beep boop

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                              In that case you'll have the exact same setup as I do. You'll probably have to shave the e46 carriers up front. Lmk if you got questions.

                              Ebrake lines are easy to remove/install fyi


                              Sent from my iPhone using Tapatalk

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                                yeah, ebrakes are out already, went through all that with the black car.

                                not looking forward a ton to installing the fronts..
                                cars beep boop

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