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    • Preliminary VF-Engineering B58 tuning results - 2017 BMW F30 340i with Stage 1 Hex Tuning software picks up +69 whp

      Consider this a preview of B58 tuning capability from VF-Engineering as this is not the official release. They are still tweaking their software but the Stage 1 HEX Tuning results are quite promising. Just look at what VF-Engineering got out of this 2017 BMW F30 340i on their Mustang dyno.


      Vehicle: 2017 BMW 340i
      Software: HEX Tuning - Stage ONE - 91 Octane
      Dyno: Mustang AWD-500-SE

      Keep in mind these numbers are on 91 octane pump fuel with the software tune only:


      At 2900 rpm they pick up ~100 lb-ft of torque at the wheels. There are gains throughout the entire curve until redline and there is not some huge torque spike that then levels off. Just solid, consistent gains.

      The B58 is not a revver (that is what the upcoming S58 is for) but notice it keeps making power until the end of the pull. At 6000 rpm there is roughly ~50 more wheel horsepower when tuned.

      Peak horsepower increases by 69 at the wheels to 365. Peak torque rises by 88 lb-ft at the wheels. For early results the numbers are looking very good.

      More from VF-Engineering:

      As we get closer to official release we'll post additional details
      in regards to pricing, flashing process, and advertised gains for
      both Stage ONE and Stage TWO variants.

      For those of you who may not be familiar VF Engineering and
      our HEX Tuning software brand; All of our s/w development,
      testing, validation, and measuring is done entirely in-house
      at our Anaheim, California.

      The bulk of our initial testing is a mix of controlled dyno testing
      in-house, as well as road and track testing for drivability and
      endurance. Our goal is never based on targeting peak power,
      but rather to find what we determine to be the equilibrium
      between area under the curve and reliability on traditional
      pump fuel.

      For those of you who are contemplating ECU Software as one
      of your first performance upgrades, you're definitely going to
      want to 'Stay Tuned' for more details.

      NOTE: We are still looking for a couple local Southern, CA
      owners for validation and review once our development cycle
      is complete. Those customers will receive an initial discount
      on the product as well as FREE before and after dynos.

      The validation process is based on dyno testing multiple cars
      on our in-house DynoJet dynamometer so that we can then
      release the official numbers based on those averages.


      This article was originally published in forum thread: ♛ HEX Tuning ♛ Pre-release (Unofficial) Stage ONE Software (Dyno Content) started by VF-Engineering View original post
      Comments 6 Comments
      1. maxnix's Avatar
        maxnix -
        Oh well, too bad it is not a Mustang dynamometer. Most developers, or at least some I know, give a full tune and necessary apparatus to a development customer. The dynamometer readings are a byproduct of the tune development.

        I was hoping the tune only B58B30M0 would exceed a tune only N54B30T0 output.

        We know what the B58B30O1 will do, more or less.
      1. VF-Engineering's Avatar
        VF-Engineering -
        Click here to enlarge Originally Posted by maxnix Click here to enlarge
        Oh well, too bad it is not a Mustang dynamometer. Most developers, or at least some I know, give a full tune and necessary apparatus to a development customer. The dynamometer readings are a byproduct of the tune development.

        I was hoping the tune only B58B30M0 would exceed a tune only N54B30T0 output.

        We know what the B58B30O1 will do, more or less.


        I may have misread your post,... but the plot above is indeed from a
        Mustang (AWD-500-SE), tested in all-wheel-drive mode with load.

        We also have an in-house DynoJet 2WD dyno, but have not yet posted
        any of those results publicly.



        We do the bulk of our development and testing on the Mustang as that
        is essentially our "workhorse". The DynoJet is used for final measuring
        and validation, and has become equally essential to our process since
        it seems that "DynoJet numbers" have become the benchmark which
        all others are measured against.



        The value though which is the most significant are delta gains, and not
        peak gains/values. As a tuner who has been been in the performance
        game for over 20 years now ... if we had it our way ... performance
        gains would only be advertised as delta values, and peak numbers
        would be entirely irrelevant.

        At the end of the day, the only thing that really matters is the margin
        of improvement over the stock values. Nothing else is as important.




      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by maxnix Click here to enlarge
        Oh well, too bad it is not a Mustang dynamometer.
        Why? I honestly prefer Mustang numbers and graphs as long as nobody messes with the settings.

        VF has a Dynojet in-house too. You'll get both.
      1. quattr0's Avatar
        quattr0 -
        Does '16 also have B58 engine?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by quattr0 Click here to enlarge
        Does '16 also have B58 engine?
        They have 2016 340i's so yes.
      1. VF-Engineering's Avatar
        VF-Engineering -


        Here are some official DynoJet results for our HEX Tuning - Stage ONE.

        Based on the average results from the last few cars we've had in-house
        for development/testing/validation, we are looking at advertised gains of;
        +65 - 75 Wheel Horsepower
        +85-105 Wheel Torque

        (on CA 91 Octane)
        Attachment 58752

        As you can see, and as we've discussed in previous threads, the delta gains
        are VERY similar between the Mustang and DynoJet even though the
        peak values for the DynoJet are noticeably higher.


        Mustang - Delta Gains: 69 whp / 87 wtq
        DynoJet - Delta Gains: 67 whp / 99 wtq

        (both of which fall right in between our advertised gains!)


        Mustang - Peak Power: 365whp / 413wtq
        DynoJet - Peak Power: 373whp / 433wtq

        (which is the reason why the Mustang is known as the "heart breaker")



        The slightly lower torque gains on the Mustang can be directly attributed
        to the higher amount of load, running in "linked, 4-wheel-drive mode".


        Of course most people would prefer to boast about having the higher
        peak wheel HP numbers from the DynoJet, than the more modest
        peak figures from the Mustang; but as demonstrated above, the
        product itself is only responsible for delivering the advertised gains and
        not the peak values produced by the machine.


        In either case these are very impressive gains for the B58.
        Click here to enlarge
        Most importantly, it does not infringe on the limitations of the high
        pressure fuel pump when using unleaded based fuels.


        And in typical HEX Tuning fashion, we can guarantee the results of our
        advertised gains (within reasonable margins for conditional variables)
        regardless of which machine it's tested on, with no excuses!