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    • Maximum PSI (Max PSI) S54 / E46 M3 entry level turbo kit tuned on stock ECU/DME nearing completion, 467 wheel horsepower

      The E46 M3 turbo market does not have a large amount of competition but that may be changing shortly. Maximum PSI in New Jersey has been working on an entry level turbo kit for almost a year now and is seeing nice results putting down 467.9 wheel horsepower a nice increase from their preliminary 439 wheel horsepower dyno. What is significant here is not the power but the tuning on the stock ECU/DME and the entry level price point.

      Tuning is being handled by Technique Tuning whose owner is the only person to have a successful turbo kit for E46's thus far tuned on the stock DME. NickG as he is known has produced kits for M54 based vehicles and is arguably the best tuner to make this S54 kit happen on the stock DME. It is not easy as many tuners have failed attempting to do the same.

      Dyno is on 93 octane fuel. Turbo is a Precision 6266CEA.

      This is an absolutely incredible development for the S54 market and if NickG and Maximum PSI pull this off, major respect from the BMW tuning community is warranted. Good luck to all involved! Pictures below.


















      This article was originally published in forum thread: Maximum PSI (Max PSI) S54 / E46 M3 entry level turbo kit tuned on stock ECU/DME nearing completion, 467 wheel horsepower started by Sticky View original post
      Comments 150 Comments
      1. Irishace's Avatar
        Irishace -
        Any update here PSI?
      1. import36's Avatar
        import36 -
        posted on their FB the other day....great looking kit. $10k price tag for catted 6speed version...

        Attachment 23885
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by import36 Click here to enlarge
        posted on their FB the other day....great looking kit. $10k price tag for catted 6speed version...

        Attachment 23885
        What is the price for catless? Where is the pricing, specs, etc.?
      1. import36's Avatar
        import36 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        What is the price for catless? Where is the pricing, specs, etc.?
        not sure Sticky...that is all that was posted...a pic and further down in the comments they stated it was $10k for the catless 6speed version. they are still finalizing the hardware for the smg...if i find out any more info i'll post in here.
      1. Artsoasis's Avatar
        Artsoasis -
        any update?
      1. LostMarine's Avatar
        LostMarine -
        i saw something on FB, dont recall what they put out though
      1. Brey335i's Avatar
        Brey335i -
        This kit ought to make some SC companies worried. Awfully good deal on a kit with a power curve like that.
      1. maximumpsi's Avatar
        maximumpsi -
        Pretty big update today! Not sure if I'm allowed to post up.
      1. Commanderwiggin's Avatar
        Commanderwiggin -
        So I found some awesome info on the internetz today!! Pretty wicked deal imo; only $10k for a DME NickG tuned turbo kit! Makes me want to get another M3 Click here to enlarge

        Click here to enlarge Originally Posted by A boss on the east coast Click here to enlarge

        Hi Guys,


        It has been a long road, however we finally have some dyno runs with our current production hardware on our Superflow AutoDyn 30 chassis dyno in addition to a Dynojet 224x. The results further confirm that our dyno reads about 6% lower than Dynojet SAE #'s. The test car was my 2002 E46 M3 6 speed. It has our production turbo kit with a twin scroll tubular header, stock section 2 and stock muffler. No exhaust cutout.


        The Superflow dyno plot 16Feb2013_5 is with the catless downpipe. The max boost shows 8.9psi, however the run was at 8.4 psi at peak hp. I drove it home loaded with a bunch of tools, some fuel, and some exhaust components. I headed to my friend's dynojet this afternoon to get some dynojet numbers, and to get some comparitive dyno data.


        I ran the car with the following configurations:


        Catted downpipe, 93 octane, 8psi
        stock section 2
        stock muffler


        Catless downpipe, 93 octane, 8psi
        stock section 2
        stock muffler


        Catted downpipe, 103 octane, ~12psi
        stock section 2
        stock muffler


        I will update the thread with more results from our dyno this week. Enjoy!

        Click here to enlarge

        Click here to enlarge

        Click here to enlarge

        Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by maximumpsi Click here to enlarge
        Pretty big update today! Not sure if I'm allowed to post up.
        You have a limited account but looks like you are covered anyway Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Commanderwiggin Click here to enlarge
        So I found some awesome info on the internetz today!! Pretty wicked deal imo; only $10k for a DME NickG tuned turbo kit! Makes me want to get another M3 Click here to enlarge
        Great post.
      1. JohnBlaze's Avatar
        JohnBlaze -
        Now that's a torque curve I can get behind
      1. import36's Avatar
        import36 -
        this is awesome....great work by the MaxPSI guys!
      1. maximumpsi's Avatar
        maximumpsi -
        more dynos/vids up today
      1. Roffle Waffle's Avatar
        Roffle Waffle -
        Click here to enlarge Originally Posted by Mikecoupe Click here to enlarge
        Mid-elevens is better as:

        60' - 1.920
        330' - 5.304
        1/8 - 8.018
        MPH - 89.99
        1000' - 10.335
        1/4 - 12.282
        MPH - 116.70

        Do you remember?Click here to enlarge
        What was the setup on this run? very close to what my VT2-500 kit's best run is
      1. LostMarine's Avatar
        LostMarine -
        Nice!
      1. ZooyorQ's Avatar
        ZooyorQ -
        They officially released it today. Not bad numbers for stock dme and pump, and no CEL WITH Cats.. overall a very impressive kit for the dollar.
      1. PEI330Ci's Avatar
        PEI330Ci -
        Click here to enlarge Originally Posted by ZooyorQ Click here to enlarge
        They officially released it today. Not bad numbers for stock dme and pump, and no CEL WITH Cats.. overall a very impressive kit for the dollar.
        Tempting?
      1. dan avoN7's Avatar
        dan avoN7 -
        Click here to enlarge Originally Posted by PEI330Ci Click here to enlarge
        Tempting?
        Very!
      1. anotherm3's Avatar
        anotherm3 -
        Is the boost adjustable? Like could I dial it back a psi or 2?