• 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. Forced Air's Avatar
        Forced Air -
        Well....outside of maybe some gain from efficiency won't fuel still limit this to what we have already seen? Awesome either way, i just really want to see a legitimate fuel solution.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Forced Air Click here to enlarge
        Well....outside of maybe some gain from efficiency won't fuel still limit this to what we have already seen? Awesome either way, i just really want to see a legitimate fuel solution.
        Fuel will be the next big step.
      1. cisi's Avatar
        cisi -
        are there any driveability advantages in a single turbo setup?
        I see only negative points in such a setup...
        Why not slightly increas both turbos instead of one big (bin lag) turbo setup. For quarter mile purpose maybe....?
      1. Laloosh's Avatar
        Laloosh -
        So stage 1 includes everything listed minus the exhaust? If so not a typical over priced solution after all.
        Turbo mani intake fmic cold and hot pipes dp along with all fitings to make it work? Does the tune come with it? Cause I would obviously option out of that and go with a different solution.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Exhaust, intercooler and tune (procede) arent part of the kit as far as I know but you already have that right

        One will also need meth to squeeze power out of this given fueling with a piggyback approach is known to support about 450whp safely tops without meth, at least that's what what seen with RBs
      1. davidrbixby's Avatar
        davidrbixby -
        Way to go and congrats.
      1. Sorena's Avatar
        Sorena -
        So LM wasn't wrong about the Shiv's part.

        Anyways, kudos to HPF for not being a lazy tuner and doing something that others couldn't.
      1. ADVANT123's Avatar
        ADVANT123 -
        Click here to enlarge Originally Posted by HPF Chris Click here to enlarge
        It will, but you will need to send the FMIC back to us to have the v-band FMIC flanges welded back on. Click here to enlarge

        Chris.
        I was hoping someone would finally come out with some charge pipes with v-band clamps...
      1. Brey335i's Avatar
        Brey335i -
        I don't see the point of stage 1 if a RB turbo setup gives a better area under the curve... We need to be able to support more power on pump for it to be worth spending this kind of money. Here's to hoping that this will be able to match or exceed the RB turbo numbers....
      1. Laloosh's Avatar
        Laloosh -
        Click here to enlarge Originally Posted by Brey335i Click here to enlarge
        I don't see the point of stage 1 if a RB turbo setup gives a better area under the curve... We need to be able to support more power on pump for it to be worth spending this kind of money. Here's to hoping that this will be able to match or exceed the RB turbo numbers....
        Pump for pump this upgrade should easily outperform rbs or any other stock turbo upgrade.
      1. Forcefed's Avatar
        Forcefed -
        Click here to enlarge Originally Posted by Laloosh Click here to enlarge
        Pump for pump this upgrade should easily outperform rbs or any other stock turbo upgrade.
        What makes you say that?
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        They seem to be progressing further than anyone else and making it into a reality
        I hope big things for this, but i think its unfair to say further than anyone else at this point. AR did get it running, did get it on the road, did dyno it, but then that was it. so not much further for HPF to go to go further, but i would have chosen more accurate wording


        Click here to enlarge Originally Posted by Sorena Click here to enlarge
        So LM wasn't wrong about the Shiv's part.
        no i wasnt. what i dont like is how it was "not true" and then it was "true"

        Click here to enlarge Originally Posted by Laloosh Click here to enlarge
        Pump for pump this upgrade should easily outperform rbs or any other stock turbo upgrade.
        as long as a piggy is used for tuning, i dont see how. could you elaborate?
      1. Laloosh's Avatar
        Laloosh -
        Common sense and experience. Spinning the $#@! out of little turbos causes massive heat and low efficiency. Attaining the same boost pressure with a turbo that is as efficient as its going to get will not only provide more flow but cooler efficient flow. I tapped out my old car on the stock turbo with meth at a whopping 32x whp running aggressive. On a ig gt35 running spring pressure and lower boost it put down 35x as a baseline on pump gas. Search around on how cars destroy pump gas numbers with bigger turbos. On 6267 running say 17 psi I see an easy 450 pump and the limit being 19-20 for pump. And btw a piggy is not the way to go for a big single lol. Atr and manually rewriting load tables will do wonders. Look at the ms3 Cobb guys compared to piggy guys all running big setups.... Actually it will be hard to find a piggy ms3 let alone one with a bt on it lol

        I wonder if hpf or shiv will release details on their turbo specs. Once that is know I can give u guys a better prediction
      1. 654's Avatar
        654 -
        Click here to enlarge Originally Posted by Laloosh Click here to enlarge
        Common sense and experience. Spinning the $#@! out of little turbos causes massive heat and low efficiency. Attaining the same boost pressure with a turbo that is as efficient as its going to get will not only provide more flow but cooler efficient flow. I tapped out my old car on the stock turbo with meth at a whopping 32x whp running aggressive. On a ig gt35 running spring pressure and lower boost it put down 35x as a baseline on pump gas. Search around on how cars destroy pump gas numbers with bigger turbos. On 6267 running say 17 psi I see an easy 450 pump and the limit being 19-20 for pump. And btw a piggy is not the way to go for a big single lol. Atr and manually rewriting load tables will do wonders. Look at the ms3 Cobb guys compared to piggy guys all running big setups.... Actually it will be hard to find a piggy ms3 let alone one with a bt on it lol

        I wonder if hpf or shiv will release details on their turbo specs. Once that is know I can give u guys a better prediction
        One part of the big turbo benefit is due to better efficiency and the other part because of more flow (air + fuel). Since stage 1 has limited fueling, only the efficiency part brings more power to the table at this stage. More fuel will bring more power later on, i.e. at stage 2.
      1. 654's Avatar
        654 -
        Why did HPR go with piggy? Procede is not able to manage the fueling system as well as flash. I'd believe Cobb ATR would be a perfect solution for HPF.
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by Laloosh Click here to enlarge
        Common sense and experience. Spinning the $#@! out of little turbos causes massive heat and low efficiency. Attaining the same boost pressure with a turbo that is as efficient as its going to get will not only provide more flow but cooler efficient flow. I tapped out my old car on the stock turbo with meth at a whopping 32x whp running aggressive. On a ig gt35 running spring pressure and lower boost it put down 35x as a baseline on pump gas. Search around on how cars destroy pump gas numbers with bigger turbos. On 6267 running say 17 psi I see an easy 450 pump and the limit being 19-20 for pump. And btw a piggy is not the way to go for a big single lol. Atr and manually rewriting load tables will do wonders. Look at the ms3 Cobb guys compared to piggy guys all running big setups.... Actually it will be hard to find a piggy ms3 let alone one with a bt on it lol

        I wonder if hpf or shiv will release details on their turbo specs. Once that is know I can give u guys a better prediction
        all good points. i dont think it will be a huge variance on pump alone, as long as a piggy is used though, that was my main point. excited to see how it all plays out though
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by dzenno Click here to enlarge
        Exhaust, intercooler and tune (procede) arent part of the kit as far as I know but you already have that right
        How would it make sense for the tune to not be a part of it?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Brey335i Click here to enlarge
        I don't see the point of stage 1 if a RB turbo setup gives a better area under the curve... We need to be able to support more power on pump for it to be worth spending this kind of money. Here's to hoping that this will be able to match or exceed the RB turbo numbers....
        Area under the curve will be nice for daily driving but if this has a much higher peak it will be stronger up top.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by LostMarine Click here to enlarge
        I hope big things for this, but i think its unfair to say further than anyone else at this point. AR did get it running, did get it on the road, did dyno it, but then that was it. so not much further for HPF to go to go further, but i would have chosen more accurate wording
        I think it is accurate considering that they have listed the kit features, pricing, and will have public dyno numbers posted soon. That in my mind pushes it further and is accurate is it not?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Laloosh Click here to enlarge
        Common sense and experience. Spinning the $#@! out of little turbos causes massive heat and low efficiency. Attaining the same boost pressure with a turbo that is as efficient as its going to get will not only provide more flow but cooler efficient flow
        This is true.