• Game changer enters the E46 M3 / S54 turbo kit market? Maximum PSI set to offer sub $10k factory DME tuned kit

      This is some HUGE news for a number of reasons. First of all, the price point Maximum PSI is aiming for with this turbo kit is under $10k. That basically blows every other competitor away. Secondly, it is being tuned on the stock DME. We hear the talented Nick G of Technique Tuning (M54 / 330i turbo kits) is doing the tuning and aiming for a factory DME tuned setup with fully functional CEL (check engine light).

      The current specs for what will be a do it yourself install kit are an oil-less comp turbo ball bearing billet 67 millimeter turbo. Manifold to be used is the Steed Speed S54 turbo manifold which used to be the manifold of choice for Horsepower Freaks on their E46 M3 turbo kits. An exhaust cutout will be optional so the entire neighborhood does not have to hear your turbo spooling.

      This is huge development *if* it can be pulled off. Several companies have tried and failed but we all agree this is the proper way to ago about it and will also take the most skill. If this comes about, the Pro-EFI's impact in the S54 turbo tuning scene practically evaporates overnight. We remain optimistic but cautiously skeptical as many tuners got pretty far with the stock DME but ultimately it is part throttle tuning with the turbo that they could not get down. We wish Nick G and Maximum PSI the best of luck, go get 'em guys!



      This article was originally published in forum thread: Max PSI Turbo E46 M3 on stock DME tuning started by black bnr32 View original post
      Comments 161 Comments
      1. J.J.'s Avatar
        J.J. -
        Edit: Read the rules: http://www.bimmerboost.com/showthrea...1516#post51516
      1. Funkboy316's Avatar
        Funkboy316 -
        that clearly didnt deserve a neg so i gave you a positive, for whatever reason alot of that has been going on lately, in one thread i got a negative for posting what kind of sparkplugs i had on my car.
      1. BattaM3's Avatar
        BattaM3 -
        MaxPsi is local to me. So if they can do some gnarly stock DME magic for hpf2.5 car. I'm
        going to have to speak to mike. Also pretty sure I seen him post they can tune using ProEfi. After I fix some other things. I'll be looking into this.
      1. J.J.'s Avatar
        J.J. -
        Click here to enlarge Originally Posted by Funkboy316 Click here to enlarge
        that clearly didnt deserve a neg so i gave you a positive, for whatever reason alot of that has been going on lately, in one thread i got a negative for posting what kind of sparkplugs i had on my car.
        Some people are very passionate about plug brand loyalty.
      1. BattaM3's Avatar
        BattaM3 -
        Insulting people usually brings on the negs for no reason. Trust me I know!
      1. GG///M3's Avatar
        GG///M3 -
        Click here to enlarge Originally Posted by BattaM3 Click here to enlarge
        If they can do a high boost built engine setup I'm there MaxPsi is local to me.
        I think its time for you to do the switch. I may even help you out
      1. Yukohama's Avatar
        Yukohama -
        i hope to have this as an option when i pick up an e46 m3, seems reasonable...just wanna see numbers first
      1. BattaM3's Avatar
        BattaM3 -
        Need some other things fixed first GG. Then I'll speak with mike.
      1. THATDONFC's Avatar
        THATDONFC -
        I've seen those manifolds split from 8psi. It didn't explode but it cracked. And yes, I have seen those s52 manifolds hold a $#@! ton of boost.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by THATDONFC Click here to enlarge
        I've seen those manifolds split from 8psi. It didn't explode but it cracked. And yes, I have seen those s52 manifolds hold a $#@! ton of boost.
        So the S54 manifold is thinner plastic or what?
      1. dreikraft's Avatar
        dreikraft -
        Click here to enlarge Originally Posted by GG///M3 Click here to enlarge
        I think its time for you to do the switch. I may even help you out
        i might be missing something but why does he even need to switch? i don't see any reason not to enjoy the setup on the aem ems for a while to come, beef up the braking, suspension, dial in a good tire setup etc. once/if you get comfortable with pump meth on the current 2.5 setup then wouldn't it be better to 'switch' to pro-efi for the e85 and the slough of safety features the 128 offers rather than a stock DME tune which has none of those new features? or for twice the cost of a 128 he could get a 2.75 using his current exhaust system and convert his EMS to the pro-efi later on too.
        i can see from a tuner standpoint it is something to be very proud of (as it has not been done before) to have a turbo s54 tuned on the stock DME, but from a end user standpoint..... who cares?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by dreikraft Click here to enlarge
        who cares?
        Fanboys.
      1. 5mall5nail5's Avatar
        5mall5nail5 -
        Fanboys? You mean people who don't want non-automotive connectors falling out, 9v batteries storing their tunes/datalogs, ballast resistors, blah blah.... ? I think that's people who care about reliability and no BS, not just fanboys. Admit it, a factory ECU in an S54 tuned for turbo is worlds better. Truthfully, if you look at the specification of the stock ECU, you'd wonder why anyone would offer anything else... other than because they can't decrypt it. Its a seriously advanced ECU.
      1. dreikraft's Avatar
        dreikraft -
        Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
        Fanboys? You mean people who don't want non-automotive connectors falling out, 9v batteries storing their tunes/datalogs, ballast resistors, blah blah.... ? I think that's people who care about reliability and no BS, not just fanboys. Admit it, a factory ECU in an S54 tuned for turbo is worlds better. Truthfully, if you look at the specification of the stock ECU, you'd wonder why anyone would offer anything else... other than because they can't decrypt it. Its a seriously advanced ECU.
        didn't hpf try initially to get it done on factory by bringing nick g in but fell apart due to some politics?
        we're all excited to finally see a turbo tuned on stock but anyone getting in the game this late is either standing on shoulders or playing catch up as far as hardware which is why i'm sitting back and just watching this unfold to see how i can incorporate the best of both worlds Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 5mall5nail5 Click here to enlarge
        Fanboys? You mean people who don't want non-automotive connectors falling out, 9v batteries storing their tunes/datalogs, ballast resistors, blah blah.... ? I think that's people who care about reliability and no BS, not just fanboys. Admit it, a factory ECU in an S54 tuned for turbo is worlds better. Truthfully, if you look at the specification of the stock ECU, you'd wonder why anyone would offer anything else... other than because they can't decrypt it. Its a seriously advanced ECU.
        I think there is a certain element of fanboyism prevalent as there are a few.. well, fanboys, who think their way is the best way.

        Is a stock DME setup preferred? Yes, I think so, and ultimately if this comes to fruition it will be better and require a less complex setup to work right (and possibly work better).

        I don't need to admit it, I prefer factory DME tuning but I think most end users won't know or care as long as the car runs well and is reliable.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by dreikraft Click here to enlarge
        didn't hpf try initially to get it done on factory by bringing nick g in but fell apart due to some politics?
        I guess I missed this, care to fill me in?
      1. Apex Speed Technology's Avatar
        Apex Speed Technology -
        I think that stock DME tuning is absolutely the way to go, and I know its possible. Years ago Steve Dinan figured out how to run the stock DMEs in speed density with excellent results. His turbo 540 race car? Stock DME, ran up to 19psi of boost. If someone has figured this out for the aftermarket (his guys are focused on late-model cars and keeping them emissions-compliant) then its absolutely the way to go fro street-driven cars. When you want compliance and you're not in an environment where its going to be on heavy boost for long periods of time, there's just nothing that handles CELs and retains stock functions better than a reprogrammed stock ECU.

        There are drawbacks such as "tweakability" in the field or to individual apps, and how much control you get over stock functions and failsafes, but for many applications this can be overcome. Just look at the domestic ECU market; no one uses anything but re-flashed stock ECUs because they are so well hacked there is, for street cars, no reason to use anything else. They demonstrate the limits too; GM started their World Challenge program on stock ECUs as there was a rules advantage, but migrated to Bosch Motorsports because, even with their in-house resources, they found a limit where the 25-50lb weight penalty was worth it.

        -Neel
      1. NickG's Avatar
        NickG -
        Click here to enlarge Originally Posted by dreikraft Click here to enlarge
        didn't hpf try initially to get it done on factory by bringing nick g in but fell apart due to some politics?
        No, that is completely false. HPF and I have never communicated about anything.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by NickG Click here to enlarge
        No, that is completely false. HPF and I have never communicated about anything.
        Thank you, squashing it before it starts Click here to enlarge
      1. NickG's Avatar
        NickG -
        Click here to enlarge Originally Posted by Apex Speed Technology Click here to enlarge
        I think that stock DME tuning is absolutely the way to go, and I know its possible. Years ago Steve Dinan figured out how to run the stock DMEs in speed density with excellent results. His turbo 540 race car? Stock DME, ran up to 19psi of boost. If someone has figured this out for the aftermarket (his guys are focused on late-model cars and keeping them emissions-compliant) then its absolutely the way to go fro street-driven cars. When you want compliance and you're not in an environment where its going to be on heavy boost for long periods of time, there's just nothing that handles CELs and retains stock functions better than a reprogrammed stock ECU.

        There are drawbacks such as "tweakability" in the field or to individual apps, and how much control you get over stock functions and failsafes, but for many applications this can be overcome. Just look at the domestic ECU market; no one uses anything but re-flashed stock ECUs because they are so well hacked there is, for street cars, no reason to use anything else. They demonstrate the limits too; GM started their World Challenge program on stock ECUs as there was a rules advantage, but migrated to Bosch Motorsports because, even with their in-house resources, they found a limit where the 25-50lb weight penalty was worth it.

        -Neel
        These kits will retain an MAF in a blow through configuration....something I've been doing successfully with our Technique Tuning turbo kits for many, many years.