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    • Over 500 whp already out of the 2015 BMW F80 M3? Yep. BMS JB4 tuned S55 turbo inline-6 ethanol (E85) testing shows 539 wheel horsepower

      So, um, yes, you can say the new F80 M3 and F82 M4 respond pretty well to bolt on modifications. Journalists are still getting their hands on stock cars to test but Burger Tuning (BMS) already has the car over 500 wheel horsepower. This is not too surprising as with a mild bump in boost on a beta Stage I BMS tune the car already showed 479 horsepower at the wheels. Now with some further refinement to the tune and some ethanol (E85) the result is over 500 whp.

      Here are the details in the words of Terry@BMS:




      Hey guys,

      Got back from a couple hours of dyno tuning and came back with some interesting results. This car definitely likes E85...

      The JB4 now has full electronic wastegate control in addition to the fuel mass control & CANbus, paving the way for E85 testing. The test car is our 2015 DCT M3, 100% stock with a JB4, with ethanol mixed with 91 octane at 30-50%.

      I've been running E30 for the last week on a tune that ramps up to around 25psi and I've been very impressed with it. On the dyno today running that same trim resulting in a very consistent ~510whp / ~510wtq results. Although the turbo holds boost to redline it looks like shifting around 6000 rpm will result in the best acceleration results as power noses off above that.

      While I had it strapped down I decided to explore more aggressive power levels. Added a little more E85 and went on an hour long adventure through many different curves and tweaks. Finally arrived at a 28psi peak tune which yielded ~540whp / ~575wtq. I've not tested this much on the street so we'll have to see how viable it is. But this just goes to show you how much room was left on the table for tuning with this platform.

      This car is an animal.















      This article was originally published in forum thread: 2015 M3 JB4 Ethanol Testing & Dyno started by Terry@BMS View original post
      Comments 276 Comments
      1. Andrew@activeautowerke's Avatar
        Andrew@activeautowerke -
        Wish my afr looked like that with e85 Click here to enlarge Map 7 where are you !?
      1. TurboSid's Avatar
        TurboSid -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        Testing is underway and we've moved the harnesses and PCB over to production which will take a few weeks to get them in higher volume. Higher than me hand assembling BETA units. Click here to enlarge

        So far no updates to share but when we have some we'll post them here.
        I can't PM you... can i get in on the beta?
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by TurboSid Click here to enlarge
        I can't PM you... can i get in on the beta?
        Any and all discussion about that happens on our n54tech thread so just follow along there for when we're ready for more.
      1. iuhutch's Avatar
        iuhutch -
        Click here to enlarge Originally Posted by Andrew@activeautowerke Click here to enlarge
        Wish my afr looked like that with e85 Click here to enlarge Map 7 where are you !?
        Me too! been a lot of discussion locally here on how to get us a little richer under load. I played with the ALL AFR tables on map 6 but T says this field is N/A on N55
      1. Andrew@activeautowerke's Avatar
        Andrew@activeautowerke -
        Click here to enlarge Originally Posted by iuhutch Click here to enlarge
        Me too! been a lot of discussion locally here on how to get us a little richer under load. I played with the ALL AFR tables on map 6 but T says this field is N/A on N55
        You have a 435?
      1. Terry@BMS's Avatar
        Terry@BMS -
        Best way to allow more E85 use is to swap that 435 for an M4. Click here to enlarge
      1. Andrew@activeautowerke's Avatar
        Andrew@activeautowerke -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        Best way to allow more E85 use is to swap that 435 for an M4. Click here to enlarge
        That's a work in progress Click here to enlarge Or take your m3 away so you can get back to work on the 435.

        Extremely jealous how much power you have pulled from the M in a months time.
      1. Terry@BMS's Avatar
        Terry@BMS -
        Hehe our 435i is down at pure turbo for their Stage1 EWG turbo. And we'll have it back on the dyno soon I hope. Click here to enlarge
      1. CaptainInsano's Avatar
        CaptainInsano -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        How about any post that isn't about S55 tuning is removed from this thread? Click here to enlarge
        +1

        There is some awesomeness at the beginning of this thread. Then Sticky got trolled and started vomiting everywhere.
      1. RingMeister01's Avatar
        RingMeister01 -
        Can we see the boost logs?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by CaptainInsano Click here to enlarge
        +1

        There is some awesomeness at the beginning of this thread. Then Sticky got trolled and started vomiting everywhere.
        What a timely post!
      1. CaptainInsano's Avatar
        CaptainInsano -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        What a timely post!
        There's more to life than this website.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by CaptainInsano Click here to enlarge
        There's more to life than this website.
        No doubt. But considering it's my website I'll write whatever I please on it. Nice timely response though it seems life is keeping you very busy with things other than this website.
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by RingMeister01 Click here to enlarge
        Can we see the boost logs?
        http://www.n54tech.com/forums/showpo...&postcount=274
      1. rawad1017's Avatar
        rawad1017 -
        @Terry@BMS what are your thoughts on the s55 up top? is the m3 more of a dig racer or roll? stock i mean.
      1. Terry@BMS's Avatar
        Terry@BMS -
        Pulls hard to me. Feels like an N54 with RB turbos.