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    • B58 picking up over 100 whp with tune and downpipe - PTF BM3 OTS Stage 2 F20 M140i

      The B58 is going to be the next big thing in BMW tuning especially and oddly enough Toyota tuning as well. The majority will just get a tune on the factory turbo but that is plenty to make the B58 potent.


      Just look at this Stage 2 PTF Bootmod3 OTS (off the shelf) tune. Yes, a skilled tuner will be able to extract more but for an OTS tune on car with a catless downpipe the results are great:


      422 wheel horsepower on pump gas with 454 lb-ft of torque at the wheels.

      The B58 stock turbo torque curve stock and tuned is so much better than the N55 it makes you wonder what BMW was thinking with the N55 to begin with.

      Expect B58 tuning to explode in 2019.

      This article was originally published in forum thread: B58 picking up over 100 whp with tune and downpipe - PTF BM3 OTS Stage 2 F20 M140i started by Sticky View original post
      Comments 16 Comments
      1. Eleventeen's Avatar
        Eleventeen -
        Im surprised that turbo hangs in until redline so well!
      1. 93siro's Avatar
        93siro -
        Best looking curve of a modern 3.0 engine. That turbo is perfectly sized.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 93siro Click here to enlarge
        Best looking curve of a modern 3.0 engine. That turbo is perfectly sized.
        I can't disagree.
      1. maxnix's Avatar
        maxnix -
        Click here to enlarge Originally Posted by Eleventeen Click here to enlarge
        Im surprised that turbo hangs in until redline so well!
      1. subaru335i's Avatar
        subaru335i -
        Man I might have to get back into a BMW (or Supra).

        A closed deck block, cam driven HPFP, and properly sized stock turbo this thing seems like the sweet spot of cheap modding fun.
      1. TwistedTuning's Avatar
        TwistedTuning -
        BMW went with a far bigger and higher flowing turbo on the B58. Almost PS2 like as 500whp can be made on the stock turbo.

        Anyway, our Supra is order, so should be a fun summer.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by TwistedTuning Click here to enlarge
        Anyway, our Supra is order, so should be a fun summer.
        Saw your order, congrats.
      1. maxnix's Avatar
        maxnix -
        Click here to enlarge Originally Posted by Eleventeen Click here to enlarge
        Im surprised that turbo hangs in until redline so well!
        So many Bimmerphiles hated the F3x so much they missed out driving the 340i and 440i.

        Nice little engine that isn't gasping at the top end and very efficient when paired with ZF 8HP. Closer to the N54B30T0 than any other non S I6 engines.
      1. subaru335i's Avatar
        subaru335i -
        Click here to enlarge Originally Posted by maxnix Click here to enlarge
        So many Bimmerphiles hated the F3x so much they missed out driving the 340i and 440i.

        Nice little engine that isn't gasping at the top end and very efficient when paired with ZF 8HP. Closer to the N54B30T0 than any other non S I6 engines.
        I did drive a friend's F30 340i and it is fast but not that nice to drive compared to an E90. Feels big and steering is crap and cant get it to turn in for $#@! with stock suspension.
      1. quattr0's Avatar
        quattr0 -
        Click here to enlarge Originally Posted by subaru335i Click here to enlarge
        I did drive a friend's F30 340i and it is fast but not that nice to drive compared to an E90. Feels big and steering is crap and cant get it to turn in for $#@! with stock suspension.
        Exactly how I felt the F82 even. But then they have 1k hp car now so I will shut up Click here to enlarge
      1. Peter @ Pure/PTF's Avatar
        Peter @ Pure/PTF -
        This was developped on our shop car. Here another graph of more testing with the bumps evened out.

        Attachment 58582
      1. 335iCooperS's Avatar
        335iCooperS -
        The B58 looks promising! What does a standard S55 do on that dyno?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Peter @ Pure/PTF Click here to enlarge
        This was developped on our shop car. Here another graph of more testing with the bumps evened out.
        @Peter @ Pure/PTF guessing a stock S55 does about ~415 on your dyno?
      1. Peter @ Pure/PTF's Avatar
        Peter @ Pure/PTF -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        @Peter @ Pure/PTF guessing a stock S55 does about ~415 on your dyno?
        The comp pack model does around 420-430whp. The regular one around 395-405.
      1. RobNyc's Avatar
        RobNyc -
        Nice work!
      1. ///B58's Avatar
        ///B58 -
        Click here to enlarge Originally Posted by maxnix Click here to enlarge
        So many Bimmerphiles hated the F3x so much they missed out driving the 340i and 440i.

        Nice little engine that isn't gasping at the top end and very efficient when paired with ZF 8HP. Closer to the N54B30T0 than any other non S I6 engines.
        I drove my friends 2016 340i with the Jb4 beta and intake and i ended up getting a 2018 340i when my 400whp 2016 Gti lease ended Click here to enlarge