Close

    • BMW F90 M5 stock tune, JB4 piggyback tuned, vs. Eurocharged flash tuned dyno overlay - 729 awhp

      Here is an interesting dyno overview of a BMW F90 M5 S63TU V8 on an all wheel drive Dynojet. This comes from our friends at Eurocharged Canada. The baseline numbers are very stout with the stock tune showing 612 horsepower and 593 lb-ft of torque at all four wheels.


      Keep in mind that the baseline is with catless downpipes and an intake.

      They then ran the car with a JB4 on a high boost map. The specific JB4 map was not stated. The result is 673 horsepower and 716 lb-ft of torque at all four wheel.

      Now comes the Eurocharged flash tune:


      You will notice the flash tune and JB4 tune have the same curve until 5000 rpm. After that, the flash is making more power and torque hitting 729 horsepower at all four wheels.

      Now, to be fair to BMS a JB4 benefits from dyno calibration as well. It's an interesting overlay but do not take this to mean flash tunes alway make more power. Often, we see the best BMW outputs with a JB4 plus a back end flash tune working in concert.

      This article was originally published in forum thread: BMW F90 M5 stock tune, JB4 piggyback tuned, vs. Eurocharged flash tuned dyno overlay - 729 awhp started by Sticky View original post
      Comments 15 Comments
      1. Payam@BMS's Avatar
        Payam@BMS -
        Not bad at all! Would love to see the log for the JB4 run.
        We did 700whp on ours with map 5. I think we can match those numbers on map 7 Click here to enlarge
      1. Bowser330's Avatar
        Bowser330 -
        No mention of JB4 map, no mentioned of fueling, pretty weak comparison without knowing the details
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        No mention of JB4 map, no mentioned of fueling, pretty weak comparison without knowing the details
        For sure. All valid questions but still interesting to see the overlay.
      1. Blown6's Avatar
        Blown6 -
        Does map 5 need 100 octane min?
      1. Bowser330's Avatar
        Bowser330 -
        Click here to enlarge Originally Posted by Blown6 Click here to enlarge
        Does map 5 need 100 octane min?
        Yessir

        https://www.n54tech.com/forums/showthread.php?t=52314

        Added higher boost map5 @ 26psi peak, and map7 @ 27psi peak, for those looking to push records on straight MS109 racing fuel.
      1. Bowser330's Avatar
        Bowser330 -
        Dyno Shmyno, let's see a Eurocharged F90 vs JB4 F90 on video
      1. maxnix's Avatar
        maxnix -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        Dyno Shmyno, let's see a Eurocharged F90 vs JB4 F90 on video
        I would settle for several timed two way runs on the same day, same pump fuel.
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by maxnix Click here to enlarge
        I would settle for several timed two way runs on the same day, same pump fuel.
        We're just waiting for anyone to actually go out to the track or airstrip and beat our records Click here to enlarge

        10.2@137mph in a 1/4 mile track and 163mph in a standing 1/2 mile at Shift Sector
      1. Sticky's Avatar
        Sticky -
        What Eurocharged said:

        Jb4 was on map 7 because this is what the owner wanted to try. Map 2 made way less power so was no point to even share the results. Pump 94 octane on all the runs. Owner ran 10.3 on dragy when the car made 698 whp with our tune. Should run a bit faster now and shut all the haters up!
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        What Eurocharged said:
        That's nice and all but without logs I can't assure that it was running correctly or even hitting target boost.
        Running map 7 on 94 octane should tell you enough that following simple directions is hard, so the results are reflecting that.

        Anyways, where's the dragy slip? No haters, we're still waiting for them to beat our records. Then we'll take it back Click here to enlarge
      1. Bowser330's Avatar
        Bowser330 -
        Click here to enlarge Originally Posted by Payam@BMS Click here to enlarge
        That's nice and all but without logs I can't assure that it was running correctly or even hitting target boost.
        Running map 7 on 94 octane should tell you enough that following simple directions is hard, so the results are reflecting that.

        Anyways, where's the dragy slip? No haters, we're still waiting for them to beat our records. Then we'll take it back Click here to enlarge
        So what exactly is happening when someone uses lower than required octane for the map they are using? Map 7 requires unleaded racing fuel.
      1. Blown6's Avatar
        Blown6 -
        I am still wondering how a modded m5 is bested by a 3L m4 on stock turbos
      1. Eleventeen's Avatar
        Eleventeen -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        So what exactly is happening when someone uses lower than required octane for the map they are using? Map 7 requires unleaded racing fuel.
        HOPEFULLY, the car pulls a $#@! load of timing to prevent engine damage, since that map is meant for racing gas (not 94 octane). However, you can imagine what that will do to power. Comparing those results to a proper flash tune is pretty pointless. The Eurocharged tune is pretty impressive on it’s own merits, though.
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by Eleventeen Click here to enlarge
        HOPEFULLY, the car pulls a $#@! load of timing to prevent engine damage, since that map is meant for racing gas (not 94 octane). However, you can imagine what that will do to power. Comparing those results to a proper flash tune is pretty pointless. The Eurocharged tune is pretty impressive on it’s own merits, though.
        Thank you for the response. I'm not sure how I missed his question.
      1. Bowser330's Avatar
        Bowser330 -
        Click here to enlarge Originally Posted by Eleventeen Click here to enlarge
        HOPEFULLY, the car pulls a $#@! load of timing to prevent engine damage, since that map is meant for racing gas (not 94 octane). However, you can imagine what that will do to power. Comparing those results to a proper flash tune is pretty pointless. The Eurocharged tune is pretty impressive on it’s own merits, though.
        Would like to hear a response from Eurocharged Canada on using basic pump gas on a race gas map....