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    • New HPF N54 Intake Manifold for both 135i and 335i - Allows secondary fuel system or disabling of direct injection, release May 2012

      We have completed our rapid prototype testing and are happy to report that we will be sending our HPF N54 intake manifold off to production next week with an expected genearl release date of May 2012. This new manifold allows everyone to run a secondary fuel system in conjunction with the N54 direct injection or turn the direct injection off and just run a standard fuel system. We will be selling the fuel rails and injectors that fit with our rail but anyone can source their own if they so desire.

      For those that are not ready for the fuel rail and injectors, we will be shipping the intake manifolds with pipe tapped plugs in the injector holes. Those that do so can later upgrade and install our fuel system or any other fuel system.

      Our previous design had methanol bungs in between the ports. We have removed those from the design. For those that want to run methanol, they can install the methanol nozzle pre intake manifold or they can drill and tap into the intake manifold and mount the nozzle themselves.

      We will have our N54 turbo kit running on a 335i in about a week and we are looking forward to getting this intake manifold completed so we can turn the boost up past the direction injection limits. If you have any questions, feel free to PM me or email my staff at sales@horsepowerfreaks.com.
      Chris.




      This article was originally published in forum thread: NEW HPF N54 Intake Manifold for both 135i and 335i - PICS started by HPF Chris View original post
      Comments 36 Comments
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by FR305 Click here to enlarge
        Pro EFI is developing a standalone option for the N54...
        Well that would be a good reason then, hope they succeed.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        What are some ProEFI tuned high hp cars?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by dzenno Click here to enlarge
        What are some ProEFI tuned high hp cars?
        Well the Pro-EFI last I saw lost power on a Stage 5 HPF car: http://www.bimmerboost.com/showthrea...-down-on-power
      1. klipseracer's Avatar
        klipseracer -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Well the Pro-EFI last I saw lost power on a Stage 5 HPF car: http://www.bimmerboost.com/showthrea...-down-on-power
        I don't care if the power isn't top notch.... Point is, is it a fueling solution or not?!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by klipseracer Click here to enlarge
        I don't care if the power isn't top notch.... Point is, is it a fueling solution or not?!
        We'll see what happens I guess.
      1. Itsbrokeagain's Avatar
        Itsbrokeagain -
        fueling ftw! No more using meth as a fuel bandaid...now we can really use meth to make more power the safe way..but then again who would even both using it since you now have 6 more injectors?


        This stuff makes me wanna go back out and buy a 335 again.
      1. DavidV's Avatar
        DavidV -
        Awesome.
        With this imstalled and combined with a single turbo, at what power level would a n54 need to have reinforced internals to not really go boom?
      1. fraser007's Avatar
        fraser007 -
        Hey guys, new member and still learning about forced induction, why is it that direct injection was such a bad thing for high boosting cars? what possibilitys does this new intake manifold make possible/ thanks for any answers or help
      1. Tonester's Avatar
        Tonester -
        Click here to enlarge Originally Posted by BoostAddict Click here to enlarge
        I like the part about turning off the DI
        I don't think they'll be turning of the DI just yet, secondary injectors is for fueling past what the factory DI can handle. It's a old school approach to get around the advanced direct injection system, I'm surprised no one else has done this yet. Good stuff guys! Click here to enlarge
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by Matt@Camber-Toe Click here to enlarge
        fueling ftw! No more using meth as a fuel bandaid...now we can really use meth to make more power the safe way..but then again who would even both using it since you now have 6 more injectors?


        This stuff makes me wanna go back out and buy a 335 again.
        you got one sittin in your shop for sale! Click here to enlarge
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        DI is what makes this engine so very special...but 800whp is also very very special Click here to enlarge

        i'd have no problem using secondary port injection for "additional" fuel on top of what DI offers but I'd definitely NOT be inclined in turning DI completely off..that's just going backwards

        I guess it all comes down to what you appreciate from your car in the end, in my case, its a high hp DI setup
      1. BoostAddict's Avatar
        BoostAddict -
        Click here to enlarge Originally Posted by Tonester Click here to enlarge
        I don't think they'll be turning of the DI just yet, secondary injectors is for fueling past what the factory DI can handle. It's a old school approach to get around the advanced direct injection system, I'm surprised no one else has done this yet. Good stuff guys! Click here to enlarge
        Maybe they have and just don't post about. Fact is, the DME has it's own afr curve. You start adding external fuel and the duty cycle on the DI injectors go down. It has even been shown to do that with high quantities of meth. Personally, I think DI is useless at this point. We just don't have the technology to utilize it yet.
      1. klipseracer's Avatar
        klipseracer -
        Click here to enlarge Originally Posted by BoostAddict Click here to enlarge
        Maybe they have and just don't post about. Fact is, the DME has it's own afr curve. You start adding external fuel and the duty cycle on the DI injectors go down. It has even been shown to do that with high quantities of meth. Personally, I think DI is useless at this point. We just don't have the technology to utilize it yet.
        Who cares about purity at this point. Its the same mentality people make about keeping stock block or stock turbos or no nitrous etc. If it performs better in the car you like, then do it. Otherwise just buy a different car.
      1. BoostAddict's Avatar
        BoostAddict -
        Click here to enlarge Originally Posted by klipseracer Click here to enlarge
        Who cares about purity at this point. Its the same mentality people make about keeping stock block or stock turbos or no nitrous etc. If it performs better in the car you like, then do it. Otherwise just buy a different car.
        Who said anything about purity. To make this motor perform like it should, ditch the DI, go port injection, and put it on a Standalone. Exactly what HPF is planning on doing.
      1. Sigma 3's Avatar
        Sigma 3 -
        Click here to enlarge Originally Posted by BoostAddict Click here to enlarge
        Who said anything about purity. To make this motor perform like it should, ditch the DI, go port injection, and put it on a Standalone. Exactly what HPF is planning on doing.
        You will have options two run one or the other or both(at least thats the plan. Tuning will be procede Then the option of AEM and pro EFI.
      1. xbox_fan's Avatar
        xbox_fan -
        Click here to enlarge Originally Posted by Sigma 3 Click here to enlarge
        Tuning will be procede
        Didn't HPF kill this "rumor" by officially saying they wouldn't use the procede? Has something changed?
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by Sigma 3 Click here to enlarge
        You will have options two run one or the other or both(at least thats the plan. Tuning will be procede
        lol sure sure
      1. HPFBranden's Avatar
        HPFBranden -
        Click here to enlarge Originally Posted by Sigma 3 Click here to enlarge
        You will have options two run one or the other or both(at least thats the plan. Tuning will be procede Then the option of AEM and pro EFI.
        Where is this coming from?

        I'm certain that we won't be using a procede for this. Will you see HPF components on a procede tuned car? Hopefully, if everything goes the way we plan it to go with marketing, there will be COBB cars, JBX cars and procede cars running our single turbo components.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by HPFBranden Click here to enlarge
        Where is this coming from?

        I'm certain that we won't be using a procede for this. Will you see HPF components on a procede tuned car? Hopefully, if everything goes the way we plan it to go with marketing, there will be COBB cars, JBX cars and procede cars running our single turbo components.
        Click here to enlarge i knew it, first post for that guy too...thanks for the clarification Branden...i'm sure whoever that is had a "good" reason to state what was stated lol
      1. HPFBranden's Avatar
        HPFBranden -
        Click here to enlarge Originally Posted by dzenno Click here to enlarge
        Click here to enlarge i knew it, first post for that guy too...thanks for the clarification Branden...i'm sure whoever that is had a "good" reason to state what was stated lol
        The rumor mills be-a-churnin'!

        I've seen that posted in a couple of places. A good way to go about dispelling potential rumors, is if the info didn't come from a screen name with "HPF" as a prefix, don't take it as a fact.