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    • BMS (Burger Tuning) hits new N54 stock turbo Dynojet dyno record with 461 rear wheel horsepower pull

      With all the discussions as of late regarding upgraded turbo options for N54 inline-6 twin turbo based vehicles the stock N54 turbos have not been getting a lot of love. Well, in comes BMS to remind us just how much power the stock turbos can make these days. The N54 has come a long way and BMS was able to squeeze out 461 rear wheel horsepower on a dynojet in STD correction. Also 510 pound-feet of rear wheel torque.


      Mod list for the car is as follows:

      B4 G5 ISO
      BMS back end flash -- "race" file
      BMS downpipes
      CPE intercooler
      CPE chargepipe w/ tial valve
      BMS DCI
      BMS OCC
      Spec clutch w/ steel single mass flywheel
      BMS 2.2g meth kit w/ 80% ethanol / 20% water, CM12 nozzle
      E40 fuel (40% E98, 60% pump 91 octane)
      "Option2" inline booster pump

      At the 20.5 PSI of boost on the turbos necessary to hit these peak figures it is doubtful the turbos would last long. This would likely need to be dialed back for any extended use as the turbos are simply being pushed past their limit. Still, nice to see just how much can be extracted from the N54 stock turbos.

      Nice work by BMS, graphs below.






      This article was originally published in forum thread: New stock turbo dyno record, 4/25/13 started by Terry@BMS View original post
      Comments 82 Comments
      1. marv85's Avatar
        marv85 -
        Very nice result! Btw you're E92 looks exactly like mine Click here to enlarge is it a '10?

        interested in the log
      1. Sparky68's Avatar
        Sparky68 -
        Good result. Must upgrade to the G5.
      1. AltecBX's Avatar
        AltecBX -
        Nice! Over 500tq on the stockers is insane.
        Great job
      1. VNeBLOB42's Avatar
        VNeBLOB42 -
        Nice!
      1. 135idct's Avatar
        135idct -
        did u use n20 map sensor
      1. Njz's Avatar
        Njz -
        I hit 469 hp and 491 tq on stock turbos a few weeks ago on map 6 with garth at Undercover tuning. I will see if he can send me that pull. FBO+100% e85 with BMS Flash. Did not realize the stock turbo HP record was mine Click here to enlarge, that was with a failing HPFP that kept falling on its face in the midrange but recovering up top. @undercoverangie can you ask garth to dig up the dyno graphs and send the 469/491 pull to me so I can post it.
      1. marv85's Avatar
        marv85 -
        Click here to enlarge Originally Posted by AltecBX Click here to enlarge
        Nice! Over 500tq on the stockers is insane.
        Great job
        Been there done that Click here to enlarge
      1. benzy89's Avatar
        benzy89 -
        Damn, how "safe" is 21psi midrange on stockers??? And I thought 19 was too aggressive Click here to enlarge
      1. marv85's Avatar
        marv85 -
        Click here to enlarge Originally Posted by benzy89 Click here to enlarge
        Damn, how "safe" is 21psi midrange on stockers??? And I thought 19 was too aggressive Click here to enlarge
        I guess only time will tell. I've ran 20 psi for a while with no issues
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by benzy89 Click here to enlarge
        Damn, how "safe" is 21psi midrange on stockers??? And I thought 19 was too aggressive Click here to enlarge
        Safe is a relative term. The turbos already smoke a bit on the car and will be replaced at some point in the near future. So from that perspective I don't have any issues with it. From an engine safety standpoint this is a lot of boost for the fuel being used. If doing runway runs for example I'd probably tone it down to 19psi peak. Which was around 440rw.
      1. boosted-M's Avatar
        boosted-M -
        Congrats T..!

        Now lets see some 60-130mph times !!
      1. undercoverangie's Avatar
        undercoverangie -
        Click here to enlarge Originally Posted by Njz Click here to enlarge
        I hit 469 hp and 491 tq on stock turbos a few weeks ago on map 6 with garth at Undercover tuning. I will see if he can send me that pull. FBO+100% e85 with BMS Flash. Did not realize the stock turbo HP record was mine Click here to enlarge, that was with a failing HPFP that kept falling on its face in the midrange but recovering up top. @undercoverangie can you ask garth to dig up the dyno graphs and send the 469/491 pull to me so I can post it.

        This is also on a DynoJet that reads WAY higher then our dyno... requested that Garth finds your pulls.. he is very intrigued by this
      1. Terry@BMS's Avatar
        Terry@BMS -
        For dyno records you normally need to use a dynojet due to how standardized they are. Load dynos can be all over the place depending on settings, correction factors used, etc. But I have a feeling both cars are in the same ballpark since they are using the same tuning. Click here to enlarge
      1. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        Safe is a relative term. The turbos already smoke a bit on the car and will be replaced at some point in the near future. So from that perspective I don't have any issues with it. From an engine safety standpoint this is a lot of boost for the fuel being used. If doing runway runs for example I'd probably tone it down to 19psi peak. Which was around 440rw.
        Would 21psi be okay on straight E85?? Or is that still too much boost to run on the stock turbos + expect them to last?
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by benzy89 Click here to enlarge
        Would 21psi be okay on straight E85?? Or is that still too much boost to run on the stock turbos + expect them to last?
        It's just an excersize in tuning. This run was done using all off the shelf stuff. Our canned backend flash, JB4 map 3 using an 85 additive iirc, etc. To try to achieve this without meth would require some work on the flash and fuel system side but should be doable. I'd start by getting map 7 going, which is 18.5psi peak. That should get you in the 440rw range. From there you'd have to add boost as fueling allowed. This same car did around 448rw on E85 only at around 20psi iirc.

        The turbos won't last like that but are cheap to replace. The bigger risk would be engine damage if it was not tuned up properly and you were doing long runway runs with it.
      1. JoshBoody's Avatar
        JoshBoody -
        Is pwm WGDC? If so how to translate to %. I want to see this on the track before it gets too hot.
      1. Terry@BMS's Avatar
        Terry@BMS -
        40 is 80% PWM. Fairly aggressive but it's not at 100%. Click here to enlarge
      1. marv85's Avatar
        marv85 -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        40 is 80% PWM. Fairly aggressive but it's not at 100%. Click here to enlarge
        what AFR are you targetting midrange and high end?
      1. BoostAddict's Avatar
        BoostAddict -
        So tempting, especially when I have a fresh set of turbos. Stock clutch though. Nice numbers T!
      1. WedgePerformance's Avatar
        WedgePerformance -
        Terry, nice numbers. Looks like I need to post my numbers to put out the fire. LOL BTW, what did you eat after Shift S3ctor? Put on a few pounds. :-)~


        (For all those who made the assumption that could be Terry in the dyno picture, well it's not. He's not that good looking. LOL )