• 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 268 Comments
      1. VargasTurboTech's Avatar
        VargasTurboTech -
        Click here to enlarge Originally Posted by Legionofboom Click here to enlarge
        This quote is hidden because you are ignoring this member. Show Quote
        The E9x M3s are going to become obsolete. Congrats Terry
        Well you just ruined this thread. Not even joking. 3...2...1... S65 vs S55 petty argument time.
      1. Legionofboom's Avatar
        Legionofboom -
        Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
        This quote is hidden because you are ignoring this member. Show Quote
        Well you just ruined this thread. Not even joking. 3...2...1... S65 vs S55 petty argument time.
        Stock hardware for stock hardware there is nothing to argue about.
      1. nafoo's Avatar
        nafoo -
        Vroom vroooooom
      1. bobS's Avatar
        bobS -
        Click here to enlarge Originally Posted by Legionofboom Click here to enlarge
        This quote is hidden because you are ignoring this member. Show Quote
        The E9x M3s are going to become obsolete. Congrats Terry
        Just like the e46 m3 being obsolete?

        Lol.... No way in hell

        Drive a proper supercharged s65 and you'll agree
      1. VargasTurboTech's Avatar
        VargasTurboTech -
        Exactly, here we go. Who cares, this thread is about the new M3 and what is can do, leave all your S65 garbage at the door.
      1. Zee's Avatar
        Zee -
        Yes leave s65 out of this thread. I need to go to my dealership asap and look into a new m3.
      1. bobS's Avatar
        bobS -
        I looked at one today when I picked up some oil at the dealership...looks great. I'd take the 4 door m3. I like the brakes. The car looks much bigger than my e92.
      1. Legionofboom's Avatar
        Legionofboom -
        Click here to enlarge Originally Posted by bobS Click here to enlarge
        This quote is hidden because you are ignoring this member. Show Quote
        Just like the e46 m3 being obsolete?

        Lol.... No way in hell

        Drive a proper supercharged s65 and you'll agree
        Too rich for my young blood, hopefully one day I can be wealthy enough to own all of them. #keeponworkin '
      1. bobS's Avatar
        bobS -
        Click here to enlarge Originally Posted by Legionofboom Click here to enlarge
        This quote is hidden because you are ignoring this member. Show Quote
        Too rich for my young blood, hopefully one day I can be wealthy enough to own all of them. #keeponworkin '
        True! Click here to enlarge
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by Legionofboom Click here to enlarge
        This quote is hidden because you are ignoring this member. Show Quote
        The E9x M3s are going to become obsolete. Congrats Terry
        No offense to E9x M3 owners but I agree. It's obsoleted. To match stock + $800 tune F80 M3 performance with an E90 M3 you basically need a 10k+ supercharger kit and even then you won't have as much torque or OEM like reliability. Now if you are trying to make a 600whp+ bomber then yes maybe the E90 is a better starting point but that can't be more than 1% of the market.
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
        This quote is hidden because you are ignoring this member. Show Quote
        Exactly, here we go. Who cares, this thread is about the new M3 and what is can do, leave all your S65 garbage at the door.
        Making fun of the S65 is half the fun of talking about the S55... Click here to enlarge
      1. mjmarovi's Avatar
        mjmarovi -
        Wow I'm thoroughly impressed. What an awesome car. Terry, what happens when the turbos go? dealer fix under warranty? hahaha
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        This quote is hidden because you are ignoring this member. Show Quote
        With the F series instead of ignition corrections per cylinder you get something called ignition roughness per cylinder. It's actually a more useful value for tuning. I've collected a lot of data but we are only sharing the basics for now.
        Cool
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
        This quote is hidden because you are ignoring this member. Show Quote
        Wow I'm thoroughly impressed. What an awesome car. Terry, what happens when the turbos go? dealer fix under warranty? hahaha
        No when you're a business you can't warranty things. You just pay for them and write them off when and if they break. Like everyone should do. Click here to enlarge
      1. Torgus's Avatar
        Torgus -
        This is so sick.
      1. rdeterman's Avatar
        rdeterman -
        looks like a huge future is in store for the new M3/M4 Click here to enlarge
      1. zeel's Avatar
        zeel -
        What kind of tire setup will fit? I can't wait to see you launch this baby.
      1. ChuckD05's Avatar
        ChuckD05 -
        incredible... im with terry 100% 540whp 560+tq on a otherwise stock car that provides the all around package the m3 does is something seriously special
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by zeel Click here to enlarge
        This quote is hidden because you are ignoring this member. Show Quote
        What kind of tire setup will fit? I can't wait to see you launch this baby.
        I have a set of 305/35/19 NT05Rs that should fit the OEM 10" rim. Once the tuning is done and I'm ready to head to the track I'll mount them up.
      1. Group.america's Avatar
        Group.america -
        So even once I get my ICs and 1 bar WG on the 996TT to be FBO I will only be at the level Terry can get the STOCK M3 to with tune and some E30 or so... giggity

        Great work Click here to enlarge