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M50 swap that will blow your mind.

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    does the original reservoir only interfere with the TPS on an M50/S50? Would the top mounted S52 fit fine?

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      Some updates

      The smaller reservoir that you can buy will fit in the master cylinder with the smaller grommets but the clutch master cylinder hose would have to be extended and the e9x reservoir can fit with some “massaging” with the m52/s52

      Here’s some pics.




      Sent from my iPhone using Tapatalk Pro
      Onwer of
      1987 e30 325e soon to be s50
      1991 e30 318i four door
      1994 e34 530i 5speed
      05 e53 X5 4.4i fully loaded

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        Great pics thanks for the update! One question, is there a negative effect from having a smaller reservoir?
        Euro Delivery Thread///E30 Project Klaus///COTM August 2021

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          Where is that smaller resevoir from?

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            Originally posted by pazi88 View Post
            Where is that smaller resevoir from?


            I posted it up on the op

            You can also get it for way cheaper on rmEuropean.com


            Sent from my iPhone using Tapatalk Pro
            Onwer of
            1987 e30 325e soon to be s50
            1991 e30 318i four door
            1994 e34 530i 5speed
            05 e53 X5 4.4i fully loaded

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              Originally posted by Staszek View Post
              Great pics thanks for the update! One question, is there a negative effect from having a smaller reservoir?


              No but when you have a brake leak it will just run out of brake fluid faster lol


              Sent from my iPhone using Tapatalk Pro
              Onwer of
              1987 e30 325e soon to be s50
              1991 e30 318i four door
              1994 e34 530i 5speed
              05 e53 X5 4.4i fully loaded

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                Originally posted by Noshow20x96 View Post
                No but when you have a brake leak it will just run out of brake fluid faster lol


                Sent from my iPhone using Tapatalk Pro
                Hopefully, with the new lines, I put in I won't have a leak lol!
                Euro Delivery Thread///E30 Project Klaus///COTM August 2021

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                  BTW does any sensor cap fit? Like the E92 cap will fit the new smaller reservoir.
                  Euro Delivery Thread///E30 Project Klaus///COTM August 2021

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                    Originally posted by Staszek View Post
                    BTW does any sensor cap fit? Like the E92 cap will fit the new smaller reservoir.


                    Yes. The stock e30 one works.


                    Sent from my iPhone using Tapatalk Pro
                    Onwer of
                    1987 e30 325e soon to be s50
                    1991 e30 318i four door
                    1994 e34 530i 5speed
                    05 e53 X5 4.4i fully loaded

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                      Functionality update

                      Took it for a short drive (no exhaust yet after headers). Stomped on my brakes a few times in isolated safe areas. This booster upgrade is the shit. Feels like a newer car. Yet I'm sure my old e30 booster has definitely seen better days. Thanks for the photo cred brotha and being adventurous enough to find this booster option!

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                        Anyone look at the X3 booster? It has the lines on the same side as the stock E30 master cylinder.

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                          Originally posted by jwal View Post
                          Anyone look at the X3 booster? It has the lines on the same side as the stock E30 master cylinder.


                          The n52 swap that’s has its own thread has went that route.


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                            Originally posted by Staszek View Post
                            Great pics thanks for the update! One question, is there a negative effect from having a smaller reservoir?
                            Depends.
                            If you have a large piston volume in your BBK, and top off the reservoir when you have new pads, then you might drain the reservoir as your pads wear thin. If you're in this situation and top up the reservoir along the way, you'll overflow it when you push the pistons back to install new pads.

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                              Originally posted by E30335i View Post
                              The n52 swap that’s has its own thread has went that route.


                              Sent from my iPhone using Tapatalk

                              Oh sweet, I hadn't seen that. I'll have to check it out, thanks!

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                                Originally posted by jwal View Post
                                Anyone look at the X3 booster? It has the lines on the same side as the stock E30 master cylinder.

                                prepping to install an X3 in mine soon

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