• 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. GG///M3's Avatar
        GG///M3 -
        Are those numbers on a stock motor or a built motor?
      1. BattaM3's Avatar
        BattaM3 -
        Built.
      1. Jason S.'s Avatar
        Jason S. -
        There is more there on the 23psi for sure...we only had a mix of 61% Ethanol in the tank and backpressure was over 2 to 1, so I didn't want to push it that hard with the tune. If we had a straight E85 mix, I would have felt more comfortable leaning it out and adding some timing SAFELY! Click here to enlarge That should make about 750whp, and carry it nicely with only about a 20hp drop by redline.
      1. spdu4ea's Avatar
        spdu4ea -
        Can you comment at all on the dip there -- is there a large timing change or something happening at ~7500rpm? None of the other HPF stages have it (but they're also more conservative on turbo selection too)
      1. GG///M3's Avatar
        GG///M3 -
        Click here to enlarge Originally Posted by BattaM3 Click here to enlarge
        Built.
        Nice.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by spdu4ea Click here to enlarge
        1st graph is proEFI E85 23psi (red) vs HPF 91+meth 23psi (blue)
        2nd graph is proEFI E85 15psi (blue) vs HPF 91+meth 23psi (red)
        Thank you.

        That second graph speaks incredibly highly of the Pro-EFI and the tuner did a nice job.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Jason S. Click here to enlarge
        There is more there on the 23psi for sure...we only had a mix of 61% Ethanol in the tank and backpressure was over 2 to 1, so I didn't want to push it that hard with the tune. If we had a straight E85 mix, I would have felt more comfortable leaning it out and adding some timing SAFELY! Click here to enlarge That should make about 750whp, and carry it nicely with only about a 20hp drop by redline.
        You built your motor as well? I thought you were running on stock internals with the stock intake manifold?

        Perhaps I misunderstood, was this Pro-EFI setup was used on an HPF built motor setup?
      1. Sticky's Avatar
        Sticky -
        Also, does anyone know if the pro-efi setup will work for the S54 powered Z4's that have a different ECU from the E46 M3?
      1. spdu4ea's Avatar
        spdu4ea -
        OK clarification time... Click here to enlarge

        The first car belongs to Jason Siebels (owner/engineer of proEFI). It runs a custom exhaust manifold, GT40, stock intake manifold, stock fuel pump, stock engine and makes 570rwhp on a 60 or 70% ethanol/gasoline mixture:

        Click here to enlarge

        Click here to enlarge



        Jim Pak was the very first HPF E46 turbo kit customer. He brought his HPF stage 2.5 to proEFI to test it out. It is an off-the-shelf HPF stage 2.5 (low compression/built engine with HPF manifolds and PT67 turbo) except for the proEFI and some fuel mods. These are the 2nd set of dyno graphs...

        Click here to enlarge

        Red is the stage 2.5/proEFI on 60% ethanol, Blue is the standard HPF stage 2.5 91+meth -- both running 23psi:

        Click here to enlarge

        This is the stage 2.5/proEFI on 60% ethanol at 15psi (blue) vs HPF stage 2.5 91+meth on 23psi (red):
        Click here to enlarge


        The HPF stage 2.5 91+meth graph is the same run (003) on both dynos -- just the colors were reversed...





        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Also, does anyone know if the pro-efi setup will work for the S54 powered Z4's that have a different ECU from the E46 M3?
        There is no reason why not, but like any other standalone there isn't an adapter harness (yet?) so you'd have to do some wiring...
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by spdu4ea Click here to enlarge
        OK clarification time... Click here to enlarge

        The first car belongs to Jason Siebels (owner/engineer of proEFI). It runs a custom exhaust manifold, GT40, stock intake manifold, stock fuel pump, stock engine and makes 570rwhp on a 60 or 70% ethanol/gasoline mixture:

        http://www.bimmerboost.com/images/im..._on_dyno-1.jpg

        http://www.bimmerboost.com/images/im...6m3_dyno-1.jpg



        Jim Pak was the very first HPF E46 turbo kit customer. He brought his HPF stage 2.5 to proEFI to test it out. It is an off-the-shelf HPF stage 2.5 (low compression/built engine with HPF manifolds and PT67 turbo) except for the proEFI and some fuel mods. These are the 2nd set of dyno graphs...

        http://www.horsepowerfreaks.com/misc...ge2.5/jim6.jpg

        Red is the stage 2.5/proEFI on 60% ethanol, Blue is the standard HPF stage 2.5 91+meth -- both running 23psi:

        http://www.bimmerboost.com/images/im...risonJPG-1.jpg

        This is the stage 2.5/proEFI on 60% ethanol at 15psi (blue) vs HPF stage 2.5 91+meth on 23psi (red):
        http://www.bimmerboost.com/images/im...risonJPG-1.jpg


        The HPF stage 2.5 91+meth graph is the same run (003) on both dynos -- just the colors were reversed...







        There is no reason why not, but like any other standalone there isn't an adapter harness (yet?) so you'd have to do some wiring...
        Thanks for the clarification, makes perfect sense. Glad an HPF 2.5 owner went and tested it out.

        I'm still amazed at the pro-EFI ethanol 15 psi graph vs. the 2.5 91+meth 23 psi graph.
      1. gringotegra's Avatar
        gringotegra -
        Click here to enlarge Originally Posted by spdu4ea Click here to enlarge
        Can you comment at all on the dip there -- is there a large timing change or something happening at ~7500rpm? None of the other HPF stages have it (but they're also more conservative on turbo selection too)
        I tried to ask Chris what that issue was on E46 a few times but never got an answer...now im banned so i cant ask lol

        I was told by a friend " Lets just say they need to be safe when they leave here"... so maybe it pulls some timing? not sure
      1. gringotegra's Avatar
        gringotegra -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Just tough to get consistently unless you have drums of it.
        Again, since the ProEFI system is using a GM flexfuel sensor (at least thats what i remember from the video) it automatically adjusts the tune for the ethanol content in it...

        I know over here at my local E85 station it does not change over winter..
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by gringotegra Click here to enlarge
        I tried to ask Chris what that issue was on E46 a few times but never got an answer...now im banned so i cant ask lol
        That is pretty ridiculous.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by gringotegra Click here to enlarge
        Again, since the ProEFI system is using a GM flexfuel sensor (at least thats what i remember from the video) it automatically adjusts the tune for the ethanol content in it...

        I know over here at my local E85 station it does not change over winter..
        That's right, you make a good point.

        I can't tell you how badly this makes me want to build an E46 M3.
      1. BigM62's Avatar
        BigM62 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Here, this should help: http://e85prices.com/e85map.php
        Thanks for info. Jason sounds like a incredible smart and likable person. Mad props to him and this thread.
      1. mazdaspeed6's Avatar
        mazdaspeed6 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        That's right, you make a good point.

        I can't tell you how badly this makes me want to build an E46 M3.
        this is amazing me too, e85 ftw
      1. Sticky's Avatar
        Sticky -
        Hope people are taking a good look at this graph, red Pro-EFI:

        Click here to enlarge
      1. ZooyorQ's Avatar
        ZooyorQ -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Hope people are taking a good look at this graph, red Pro-EFI:

        http://www.bimmerboost.com/images/im...risonJPG-1.jpg

        Oh i'm looking.. Click here to enlarge I want this on my Stage 3 but I need to hear more about what injectors would need to be used and get the sign off from HPF on ready its been green lighted. I really like the idea of more hp without meth. I was only going to run meth when it was absolutely necessary otherwise only 91 or race fuel..
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by ZooyorQ Click here to enlarge
        Oh i'm looking.. Click here to enlarge I want this on my Stage 3 but I need to hear more about what injectors would need to be used and get the sign off from HPF on ready its been green lighted. I really like the idea of more hp without meth. I was only going to run meth when it was absolutely necessary otherwise only 91 or race fuel..
        From what I'm seeing, I would lean to E85 over meth.

        The problem is getting it but meth has its own headaches as well.
      1. gringotegra's Avatar
        gringotegra -
        Ive tried to say E85 was worth it over on E46 a while ago but none of them wanted to listen...



        As far as injectors, i bet a set of FIC 1680's would be more than enough for your car... They are high impedance and work great.. Ive got a set on my car.. Call up Fuel Injector Clinic