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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. black bnr32's Avatar
        black bnr32 -
        comparing tunes with only dyno plots is sort of silly, no?

        I'd love to hear more about HPF's claim to control DVANOS please.
      1. Apex Speed Technology's Avatar
        Apex Speed Technology -
        Why is the boost spiking? How does ProEFI's boost control work?

        You have to assign the idle 1/2 and idle 3/4 or idle 5/6 idle 7/8 those are the h-bridges...and yes...very POOR control...but it is there. It is also limited to 1.5 amp circuits but that is a whole other issue completely.
        Yeah, that's the setup we say, and its really not even viable. Try setting up a data system to read crank and cam position. Go drive the car for real. You'll find that trying to control the VANOS without feedback is completely worthless. Not very poor control, I mean the position is completely random. I think anyone who sells this should be viewed with a bit of suspicion - to me its dishonest. Their only excuse is ignorance based on the results of full-throttle dyno pulls.

        -Neel
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by black bnr32 Click here to enlarge
        I'd love to hear more about HPF's claim to control DVANOS please.
        Same, as it is an AEM FIC right? And that doesn't have the capability from what I understand.
      1. black bnr32's Avatar
        black bnr32 -
        If only their tuner (Mike, I believe) would post publicly. He has been asked before, but to no avail.
      1. Jason S.'s Avatar
        Jason S. -
        Click here to enlarge Originally Posted by Apex Speed Technology Click here to enlarge
        Why is the boost spiking? How does ProEFI's boost control work?



        Yeah, that's the setup we say, and its really not even viable. Try setting up a data system to read crank and cam position. Go drive the car for real. You'll find that trying to control the VANOS without feedback is completely worthless. Not very poor control, I mean the position is completely random. I think anyone who sells this should be viewed with a bit of suspicion - to me its dishonest. Their only excuse is ignorance based on the results of full-throttle dyno pulls.

        -Neel
        Which one are we talking about? On the pump gas run the boost spike is a function of their manifold wastegate setup... it makes 15psi then falls to spring pressure with no boost control. The higher boost ones, just need some additional tweaking on the base offset. The ProEFI boost control is waste gate duty offset with PID control.

        Listen...we are on the same page here with the vcam control on the AEM...it's someones idea of what is good enough (not mine Click here to enlarge ). To say it doesn't have feedback control though, is like saying a spare tire isn't a tire...it is, the idea is that you get it off the car as quick as possible! Click here to enlarge
      1. Jason S.'s Avatar
        Jason S. -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Same, as it is an AEM FIC right? And that doesn't have the capability from what I understand.

        No, the HPF ecu is a standard AEM ECU main board with their own adapter board.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Jason S. Click here to enlarge
        No, the HPF ecu is a standard AEM ECU main board with their own adapter board.
        Thanks, so is the standard AEM ECU capable of handling VANOS?
      1. Jason S.'s Avatar
        Jason S. -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Thanks, so is the standard AEM ECU capable of handling VANOS?
        Like we have been discussing...there are varying degrees of capable. Will it move the cams....yes. Is it capable of accurate real time control...no.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Jason S. Click here to enlarge
        Like we have been discussing...there are varying degrees of capable. Will it move the cams....yes. Is it capable of accurate real time control...no.
        Ok, there we go. That was like pulling teeth. Click here to enlarge

        Thanks.
      1. Jason S.'s Avatar
        Jason S. -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Ok, there we go. That was like pulling teeth. Click here to enlarge

        Thanks.
        It's always difficult when points of reference vary so wildly. I have had guys toss me the keys to a car and say "drive this...you won't believe how well it drives". Only to find the car runs like A$$. To the owner, it's 1000 times better than it was. Click here to enlarge
      1. Apex Speed Technology's Avatar
        Apex Speed Technology -
        Like we have been discussing...there are varying degrees of capable. Will it move the cams....yes. Is it capable of accurate real time control...no.
        Which is why anyone's claims of controlling S54 cams without proper push/pull drivers (like Pectel, MOTEC or Vi-PEC) is downright dishonest. Just because you can cause the cams to move doesn't mean anything in terms of using them.

        No, the HPF ecu is a standard AEM ECU main board with their own adapter board.
        And HPF's decision to use this instead of something more robust, capable and durable has always bothered me. They could have done much better.

        -Neel
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Apex Speed Technology Click here to enlarge
        And HPF's decision to use this instead of something more robust, capable and durable has always bothered me. They could have done much better.
        Well, it was likely the best option for them at the time and something of convenience. The market seems to be evolving forcing HPF to rethink it and they will be offering the Pro-EFI so a step in the right direction.
      1. spdu4ea's Avatar
        spdu4ea -
        I don't have any experience with ViPec or Pectel, but the Motec would not be my first choice for a street-driven tuned ecu sent to people around the world. It is a highly capable motorsports ecu and it'll do pretty much anything a race car could ever want, but it was never meant for use on the road and from my experience it is really lacking when it comes to refinement things like cold start (sub freezing). It can be done, but you'll be disappointed by how much of the motec's capability was eaten up in the process. I'll take the extra 2 cranks from the AEM any day (and if you don't try and stretch 4 maps into a 1map system its plenty capable/safe...)
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by spdu4ea Click here to enlarge
        don't have any experience with ViPec or Pectel, but the Motec would not be my first choice for a street-driven tuned ecu sent to people around the world. It is a highly capable motorsports ecu and it'll do pretty much anything a race car could ever want, but it was never meant for use on the road and from my experience it is really lacking when it comes to refinement things like cold start (sub freezing).
        Doesn't the Motec serve as the base for the UGR setups though? The twin turbo Gallardo's, Murcielago's, and F430's?
      1. gringotegra's Avatar
        gringotegra -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Doesn't the Motec serve as the base for the UGR setups though? The twin turbo Gallardo's, Murcielago's, and F430's?
        Yes, Tuned and Wiring harness done by John Reed IIRC...


        MOTEC can be used for damn near anything.. They have been around for quite a while too
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by gringotegra Click here to enlarge
        Yes, Tuned and Wiring harness done by John Reed IIRC...


        MOTEC can be used for damn near anything.. They have been around for quite a while too
        So how is the streetability of those setups?
      1. BattaM3's Avatar
        BattaM3 -
        Hpf kits been around for awhile now. It was only a matter of time
        till something better would come along. I'll be switching to locked version met likely if everything works out between hpf/proefi. If they already would have the regular 2.5 tunes ready and it's just plug and play or gotta ship the car back for tuning. If then I probably won't be
        worth it with shipping. Unless I was upgrading but 2.5 might be the highest I go.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by BattaM3 Click here to enlarge
        Hpf kits been around for awhile now. It was only a matter of time
        till something better would come along. I'll be switching to locked version met likely if everything works out between hpf/proefi. If they already would have the regular 2.5 tunes ready and it's just plug and play or gotta ship the car back for tuning. If then I probably won't be
        worth it with shipping. Unless I was upgrading but 2.5 might be the highest I go.
        I don't think you would have to ship the car to install the Pro-EFI, why?
      1. gringotegra's Avatar
        gringotegra -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        So how is the streetability of those setups?
        Amazing.... Just like stock no joke...

        Did i mention that the UGR kit is cheaper than the HPF kits!!!!!!!!!!!!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by gringotegra Click here to enlarge
        Amazing.... Just like stock no joke...

        Did i mention that the UGR kit is cheaper than the HPF kits!!!!!!!!!!!!
        If it's just like stock then I don't see the downside.