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    • E46 M3 and S54 turbo options set to open up thanks to ProEFI and the Pro128 computer

      Let's be honest, the S54 turbo scene has been dominated by Horsepower Freaks. That is not necesassrily a bad thing as they are a high quality option. However, there have not been any tuning options for those wanting to do their own turbo kit or perhaps go in a different direction. Well, ProEFI may be shaking things up considerably. ProEFI has released some initial details of their E46 M3 turbo setup using the Pro128 computer.

      As most of you know, the hardest part of doing a forced induction setup on a naturally aspirated BMW M motor is the tuning. Up until now HPF and their AEM setup was the only consistent solution for a turbo. Jason as ProEFI has demonstrated that an E46 M3 with a custom turbo setup (GT40) and a Pro128 computer has hit 573 whp at 9 psi on stock internals. Impressive? Yes.

      What are the specs on ProEFI's turbo M3? As follows:

      • GT40 Turbo with FMIC
      • E85

      • Flex Fuel Sensor allows for mixes of pump gas or E85

      • Traction Control

      • Stock clutch, exhaust, and intake manifold

      • 1000 cc injectors


      What does this all mean? Well, it means the S54 turbo market may be set to open up. This will no doubt drive costs down and allow for greater variety. Pricing information and further details will come for now we are incredible excited about the potential. Check out the video below:




      This article was originally published in forum thread: ProEFI-tuned Turbo M3 started by spdu4ea View original post
      Comments 313 Comments
      1. DBFIU's Avatar
        DBFIU -
        Jason, there are probably in upwards of 20,000 modded N54 cars. Roughly 3/4 of those have piggyback tunes and bolt ons, with little or not tuning solutions for aftermarket turbocharging. If you can fix that problem, you'll have opened up many doors.
      1. Jason S.'s Avatar
        Jason S. -
        Click here to enlarge Originally Posted by DBFIU Click here to enlarge
        Jason, there are probably in upwards of 20,000 modded N54 cars. Roughly 3/4 of those have piggyback tunes and bolt ons, with little or not tuning solutions for aftermarket turbocharging. If you can fix that problem, you'll have opened up many doors.
        What is an N54?
      1. spdu4ea's Avatar
        spdu4ea -
        BMW's 3.0L twin turbo inline 6: http://en.wikipedia.org/wiki/BMW_N54

        Found primarily in 135i, 335i, and 535i... Some other forums to check out:

        http://www.e90post.com/forums/forumdisplay.php?f=58
        http://www.n54tech.com/forums/forumdisplay.php?f=3

        and of course:
        http://www.bimmerboost.com/forumdisplay.php?39-N54
      1. gringotegra's Avatar
        gringotegra -
        Defiantly needs to make one for the N54... so much potential there!!!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Jason S. Click here to enlarge
        For now it looks like we can cover any BMW up to 2006. I need to get some newer cars in to see what we are working with. Anybody know anyone in the phoenix area with a late model M5 or M3??? Click here to enlarge
        The non E46 kits will be made to order (once we get the rest of our parts in) until we see where the volume goes.
        Jason, to start making business requests like this you need to become a vendor. I'm very lenient as you can tell but the purpose of allowing you to post as a guest is to address certain issues with your product which benefits the community. Making requests like this goes beyond the scope and violates the rules. I'm not going to remove it, but please keep it in mind. You can read over the policy here: http://www.bimmerboost.com/showthrea...dor-Guidelines
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by gringotegra Click here to enlarge
        Defiantly needs to make one for the N54... so much potential there!!!
        The N54 market will offer him the largest volume if that is his goal.
      1. spdu4ea's Avatar
        spdu4ea -
        Jim P's HPF stage 2.5 is now testing out the proEFI. These are the initial results on 91 octane (blue is AEM, red is proEFI):

        Click here to enlarge


        It sounds like HPF and ProEFI may be teaming up for future kit options:

        Click here to enlarge Originally Posted by HPF Chris Click here to enlarge
        Jason and I are currently working on a Warrantiable HPF product that would use the ProEfi software so we can take advantage of flex fuels, added safety features and many of it's other capabilities. The warrantied version would come with the tuning capabilities locked. Engine failures are not warrantiable anyway on HPF turbo kits so if the end user decides to alter their tune and they have a failure, it's on them.

        At some point in the future HPF may be selling turbo kits with the option to go with a ProEfi engine management. Before that happens, however, we will need to see a lot of miles put on this system with M3's.

        Chris.
        This makes a lot of sense to me -- in fact it is similar to UGR TT gallardos running AEM standard but having the option to upgrade to Motec.
      1. Sticky's Avatar
        Sticky -
        ^ I'm a little scared by that. I don't want to pro-efi to get locked into an HPF hardware only option like the AEM.

        Also, the pro-efi tune seems to hit a higher peak by an odd sort of spike at the end?
      1. spdu4ea's Avatar
        spdu4ea -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        ^ I'm a little scared by that. I don't want to pro-efi to get locked into an HPF hardware only option like the AEM.
        I'd rather have a tuner-friendly option as well, but HPF probably has good reasons for leaving it alone (protect profit margin on parts, prevent people from blowing stuff up on their own and blaming hpf).

        Also, the pro-efi tune seems to hit a higher peak by an odd sort of spike at the end?
        Yeah, I'd ignore the spike and consider peak power essentially identical, but the proEFI's torque curve is noticeably smoother and has picked up 15 ft-lbs in the mid range... What's exciting isn't so much the prospect of more power on the same fuel (AEM never really had a problem with that), but additional safety features and the flexibility to run different fuels.

        This graph also disproved my suspicion that the proEFI was leaving power on the table by letting the DME control vanos. Great news for those who want max power AND still don't want to see the SES light.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by spdu4ea Click here to enlarge
        but the proEFI's torque curve is noticeably smoother and has picked up 15 ft-lbs in the mid range...
        Yes, it is and the mid range gains are what I picked up on. Peak does seem the same.

        Click here to enlarge Originally Posted by spdu4ea Click here to enlarge
        I'd rather have a tuner-friendly option as well, but HPF probably has good reasons for leaving it alone (protect profit margin on parts, prevent people from blowing stuff up on their own and blaming hpf).
        Not exactly sure what you mean here. I understand if HPF uses this and has their own rule but I just don't want it become an exclusive arrangement where the only way you get the pro-EFI is with HPF hardware bundled.

        Not saying I have anything against HPF hardware, just want flexibility.
      1. spdu4ea's Avatar
        spdu4ea -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Not exactly sure what you mean here. I understand if HPF uses this and has their own rule but I just don't want it become an exclusive arrangement where the only way you get the pro-EFI is with HPF hardware bundled.

        Not saying I have anything against HPF hardware, just want flexibility.
        Oh, I think you'll still be able to buy an unlocked proEFI by itself no problem -- the news that HPF is now testing/considering it for locked-use on their kits goes more towards that other thread...
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by spdu4ea Click here to enlarge
        Oh, I think you'll still be able to buy an unlocked proEFI by itself no problem -- the news that HPF is now testing/considering it for locked-use on their kits goes more towards that other thread...
        Yep, I hope that remains the case.
      1. ccsykes's Avatar
        ccsykes -
        I've been following this thread but have not really posted yet. I'm still wrapping up my Stage III so I'm not looking to make any changes any time soon, however this looks very interesting. Once I get some miles out of the HPF kit I imagine the custom mod bug is going to hit me again.

        I would really like to have a user tunable option. Though I understand 100% why HPF locks theirs. It would be nice to maybe experiment in the future. It seems the proEFI has some really neat controls.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by ccsykes Click here to enlarge
        I would really like to have a user tunable option. Though I understand 100% why HPF locks theirs. It would be nice to maybe experiment in the future. It seems the proEFI has some really neat controls.
        Exactly. User tuneability is very nice but for me I mostly would like the ability to piece together my own kit.
      1. ccsykes's Avatar
        ccsykes -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Exactly. User tuneability is very nice but for me I mostly would like the ability to piece together my own kit.
        I have a feeling HPF will work with proEFI. For the most part HPF has nothing to loose. Those seeking custom options can go to HPF to buy manifolds, intakes, piping etc. It just keeps their product range profitable.
      1. DBFIU's Avatar
        DBFIU -
        I think trying to crack open your own tune if HPF comes with pro-efi is going to be a risk for those that are inexperienced with tuning.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by DBFIU Click here to enlarge
        I think trying to crack open your own tune if HPF comes with pro-efi is going to be a risk for those that are inexperienced with tuning.
        Of course, but that is something HPF will have to let customers know. I'm sure there will be some kind of disclaimer.

        I'm excited of the prospect that I can get a pro-efi, a manifold, pick my own turbo, etc.
      1. Stahlgrau's Avatar
        Stahlgrau -
        Sounds like HPF will possibly use a warrantied option using the Pro-EFI that won't allow for owner tuning. If you want to tune it yourself, HPF won't warranty the kit.

        Then, of course, you could just buy the Pro-EFI and build your own kit if you know what you're doing.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Stahlgrau Click here to enlarge
        Sounds like HPF will possibly use a warrantied option using the Pro-EFI that won't allow for owner tuning. If you want to tune it yourself, HPF won't warranty the kit.

        Then, of course, you could just buy the Pro-EFI and build your own kit if you know what you're doing.
        Exactly, this makes the most sense.
      1. Jason S.'s Avatar
        Jason S. -
        Sorry I've been away guys! It's been a pretty crazy two weeks. A couple of things to note on the dyno graph.

        1- The spike at the end....that is just me starting to close the throttle, getting a bit of a boost spike as it does that, and then stopping the run on the dyno... no big deal.
        2- The stock DME's vcam control (vanos) kicks ass, and needs no attention. It's just a light you will get, and more tuning you will need to do for no reason. The factory controller (on most any car with variable cam) will shut the cam advance down if there is a light as a kind of first response. Some even roll the cams back to help traction control at low end (nissan). So that is why HPF had to control the cam, as well as how the AEM syncs timing from the factory crank signals. This isn't an issue for ProEFI.
        3- The ProEFI will be available outside any kits we do with HPF. They are offering a warranty, and therefore they HAVE to lock the calibration for obvious reasons. We are working on possibilities for HPF that will allow them to unlock the ecu to users who may have had their warrantied kit for a while and want to make changes and are comfortable with losing their warranty at that time.
        4- The graph you are looking at on our end still needs some attention, these were just preliminary runs getting the boost dialed in with safe timing. We also were unsure of what compression ratio the engine was built with, so we left it really conservative on timing (which is why it isn't as smooth above 5500rpm).

        We are in process of upgrading his fuel system to run E85. We hope to have it back on the dyno tomorrow and put down some real power! Click here to enlargeClick here to enlarge

        Stay tuned!