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    • Horsepower Freaks single turbo Stage I N54 upgrade kit progress, startup video - Aiming for $5950 intro price

      Many tuners have attempted single turbo setups on the BMW N54 direct injected turbo 6. Up to this point, nobody has been able to come to market with a reliable solution. HPF announced they intended to provide a single turbo kit for the N54 last year. They seem to be progressing further than anyone else and making it into a reality. Expect dyno numbers to come soon but for now the details we have are that this kit will be able to run any Precision T4 Turbo from a 67 to a 76.

      Additionally, HPF is aiming for a starting price of $5950 which will include the turbo manifold, journal bearing Precision turbo, wastegate, oil scavenge pump and hardware, downpipe, intake charge pipe, motor mount, motor mount relocation kit, VBrace, fittings, couplers, etc. This will really shift the N54 turbo upgrade options and be incredibly competitive. After this is released expect a Stage II with fueling upgrade but that is further down the line.

      Good job so far HPF, good job indeed.




      This article was originally published in forum thread: Eric's HPF Single Turbo N54 Is ALIVE - VIDEO started by HPF Chris View original post
      Comments 233 Comments
      1. orange's Avatar
        orange -
        Can't wait to see the dyno results.
      1. themyst's Avatar
        themyst -
        Click here to enlarge Originally Posted by Forcefed Click here to enlarge
        Probably pretty difficult. If only I could.. I would.
        You haven't owned a 6MT N54 have you? Welcome to the world of bogging if you do. I'd rather drop 4 grand and beef up the 6AT than ever going back to a manual on this platform.
      1. Forcefed's Avatar
        Forcefed -
        Click here to enlarge Originally Posted by themyst Click here to enlarge
        You haven't owned a 6MT N54 have you? Welcome to the world of bogging if you do. I'd rather drop 4 grand and beef up the 6AT than ever going back to a manual on this platform.
        I have not. In fact, I have never even driven a 6MT N54.
      1. themyst's Avatar
        themyst -
        Click here to enlarge Originally Posted by Forcefed Click here to enlarge
        I have not. In fact, I have never even driven a 6MT N54.
        heh, search "bog" on the N54tech or shivpost and see what you dig up. Bogging a shift is the difference between a 115 trap and a 119 trap.
      1. Forcefed's Avatar
        Forcefed -
        Click here to enlarge Originally Posted by themyst Click here to enlarge
        heh, search "bog" on the N54tech or shivpost and see what you dig up. Bogging a shift is the difference between a 115 trap and a 119 trap.
        Oh I believe it. But if I had a MT I would have upgraded turbos already.
      1. 654's Avatar
        654 -
        Click here to enlarge Originally Posted by Remonster Click here to enlarge
        Why are people worried about area under the curve being worse than RBs? On the street I already have enough issues with traction (especially since this has been an unusually cold winter in SoCal) so shifting the power curve over to the right is the main reason I would want a big single. My car is tune only and I usually set it to map 0 when I'm in the twisties because I light up my 255 Pilot Super Sports way too easily.Then again, I'm just a lowly N55 owner so none of this will benefit me any time soon.
        There is room to shift the power band right. However, the idea with bigger turbo kits is that they enable you to make the traction problem worse. The curve shifts right because of longer spool time. The responsiveness being less is another reason for the worry. The sooner the power comes, the better.
      1. 654's Avatar
        654 -
        Click here to enlarge Originally Posted by Laloosh Click here to enlarge
        Actually the tranny might be better off with a big turbo due to the decreased tq.
        Let's see if the max torque figure is more or less at stage2, but yes, I guess it is not much more at least.
      1. Laloosh's Avatar
        Laloosh -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        When your off your phone I would like to see a more detailed breakdown on the reasoning behind your choice.
        Splitting hairs again? Read up on how all this work then you can understand my choices, assuming you have the same goal as me regarding spool time and top end power.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        NLS eliminates bog completely..see my 60-130 runs with NLS, speed is almost a perfectly straight rising slope, no flat spots
      1. jacobs323i's Avatar
        jacobs323i -
        I think using procede is a grave mistake! As others have said Cobb is a much better choice not only due to their upcoming tuner access kit but also that they have done way more with the stock DME. Click here to enlarge
      1. fevernova's Avatar
        fevernova -
        Does labor cost included in the $5950? if not, how long does it gonna take for it to be done?
      1. TwinTurboXI's Avatar
        TwinTurboXI -
        Click here to enlarge Originally Posted by fevernova Click here to enlarge
        Does labor cost included in the $5950? if not, how long does it gonna take for it to be done?
        No, labor is never included in "kit" prices. expect in the area of $1500-$3000 for a competent install.
      1. maxnix's Avatar
        maxnix -
        Click here to enlarge Originally Posted by Laloosh Click here to enlarge
        You are too uneducated to understand why I Cantrell you what hpf picked.
        And you are too uneducated to post in English? If you have a point, you need to articulate cogently and precisely. This is second grade gibberish, at best.
      1. maxnix's Avatar
        maxnix -
        Click here to enlarge Originally Posted by Forcefed Click here to enlarge
        Thats what I am hoping for. I would love to see 500whp and 430wtq. But that is just because I am AT, unfortunately.
        Nothing wrong if you run an auxiliary ATF cooler and perform frequent mechanical ATF exchanges.
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by maxnix Click here to enlarge
        Nothing wrong if you run an auxiliary ATF cooler and perform frequent mechanical ATF exchanges.
        i would have to argue otherwise
      1. Laloosh's Avatar
        Laloosh -
        Click here to enlarge Originally Posted by maxnix Click here to enlarge
        And you are too uneducated to post in English? If you have a point, you need to articulate cogently and precisely. This is second grade gibberish, at best.
        Iphone posting and my lack of care to give a $#@! about your concerns are to blame.
      1. Forcefed's Avatar
        Forcefed -
        Click here to enlarge Originally Posted by maxnix Click here to enlarge
        Nothing wrong if you run an auxiliary ATF cooler and perform frequent mechanical ATF exchanges.
        They dont have one available for us yet.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Laloosh Click here to enlarge
        Splitting hairs again? Read up on how all this work then you can understand my choices, assuming you have the same goal as me regarding spool time and top end power.
        Splitting hairs? I'm asking for reasoning behind the choice.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by fevernova Click here to enlarge
        Does labor cost included in the $5950? if not, how long does it gonna take for it to be done?
        Labor is not included.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by jacobs323i Click here to enlarge
        I think using procede is a grave mistake! As others have said Cobb is a much better choice not only due to their upcoming tuner access kit but also that they have done way more with the stock DME. Click here to enlarge
        This would require Cobb and HPF working together. It seems Shiv has somehow forced his way in.