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    • BMW F90 M5 S63TU2 V8 making 715 awhp with just a BMS JB4

      Talk about bang for your buck. It is well known the BMS JB4 piggyback offers the greatest gains per dollar in the BMW aftermarket (as well as on other platforms). This F90 M5 has no other mods other an the BMS JB4 box and it is producing some big numbers.


      715 all wheel horsepower and 736 lb-ft of torque at all four wheels is simply huge on a Mustang dyno:


      That this is achieved with no supporting mods and is quite frankly bonkers.

      The F90 also has a pretty good looking top end curve. You will notice excellent spool as early as 2500 rpm and the torque curve holds until it starts to progressively drop past 4000 rpm. It does not fall of a cliff but it is a nice, gradual slide.

      This enables horsepower to grow until just under 7000 rpm.

      Fuel specifications were not provided but considering this is Map 6 on the JB4 that means a custom map likely for higher octane fuel.

      Great results and unbeatable horsepower per dollar. It is too bad the baseline is not overlaid on the graph.

      This article was originally published in forum thread: BMW F90 M5 S63TU2 V8 making 715 awhp with just a BMS JB4 started by Sticky View original post
      Comments 9 Comments
      1. Payam@BMS's Avatar
        Payam@BMS -
        92 octane ONLY, on map 6 at 23 psi. Click here to enlarge

        Stock did 590 AWHP 570 AWTQ
      1. Sticky's Avatar
        Sticky -
        Could we get the stock graph?
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Could we get the stock graph?
        I don't have one. The user is on here sometimes, maybe he has it and can post it.
      1. Eleventeen's Avatar
        Eleventeen -
        Click here to enlarge Originally Posted by Payam@BMS Click here to enlarge
        92 octane ONLY, on map 6 at 23 psi. Click here to enlarge

        Stock did 590 AWHP 570 AWTQ
        Stock pull was 590 WHP on a Mustang dyno??? Something is not right with the calibration of that dyno LOL. Thats at least 50 HP higher than I would expect on a Mustang Dyno. Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Eleventeen Click here to enlarge
        Stock pull was 590 WHP on a Mustang dyno??? Something is not right with the calibration of that dyno LOL. That’s at least 50 HP higher than I would expect on a Mustang Dyno. Click here to enlarge
        It may be reading more like a Dynojet...

        I could figure it out if I get the name of the dyno center.
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        It may be reading more like a Dynojet...

        I could figure it out if I get the name of the dyno center.
        Addict Motorsports in Woodinville, WA

        Check your email.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Payam@BMS Click here to enlarge
        Addict Motorsports in Woodinville, WA

        Check your email.
        I've looked at some of their dynos and it doesn't look to be corrected but maybe they changed things.

        I'm having a hard time believing the peak numbers too based on 590 baseline but this motor is a powerhouse.
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I've looked at some of their dynos and it doesn't look to be corrected but maybe they changed things.

        I'm having a hard time believing the peak numbers too based on 590 baseline but this motor is a powerhouse.
        Dragy and 1/2 mile numbers can't lie Click here to enlarge
      1. Eleventeen's Avatar
        Eleventeen -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I've looked at some of their dynos and it doesn't look to be corrected but maybe they changed things.

        I'm having a hard time believing the peak numbers too based on 590 baseline but this motor is a powerhouse.
        I’m skeptical of the peak numbers; but I have to admit that I’ve always been a JB4 fan, and the delta here doesn’t disappoint. The F90 is proving to be really impressive, as well.