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    • 2012 328i N20 Stage I beta tune dyno testing from Burger Motorsports (BMS) - +~30 wheel horsepower so far on 91 octane

      Took a few hours today to do some N20 dyno testing and tuning. For those that have been living under a rock for the past few months the N20 is a 2.0L 4 cylinder turbo and motors replaces the N52 motor used in the 328i, among other cars. We only have around 200 miles on the car but so far first impressions are very positive. Compared to the previous 328i N52 motor the N20 is much more responsive and has excellent low end torque characteristics. In addition it has much more power to redline. It also delivers better fuel economy. In short, it really blows the N52 away in all categories. Below is an N52 vs. N20 dyno comparison.

      With regard to tuning BMW definitely left some room for improvement with the N20. Unfortunately, they changed around the DME so none of the CAN stuff we've developed for the N54 and N55 motors is compatible. It's back to square one there.

      But doing the tuning on a JB3 platform using an OBDII logger for advance and throttle, and the dyno for AFR and output, we were able to make some nice tuning improvements. I still think there is another easy 10hp in there with more work. But very pleased at the results so far. On the road the tuning feels much more responsive and almost as fast as an OEM 335i now.

      We'll continue working on the software end and expect to have an N20 Stage1 BETA system ready in the near future.







      This article was originally published in forum thread: 2012 328i N20 Dyno Testing! started by Terry@BMS View original post
      Comments 33 Comments
      1. xbox_fan's Avatar
        xbox_fan -
        Is it just me or is that picture not the best proof of BMW doing things right! The engine sits almost behind the front wheels, it is far from an VW/Audi engine bay!
      1. Puerto Rican 335d's Avatar
        Puerto Rican 335d -
        Congrats Terry, BTW this was done w/o a modified intake so I gather another 5-7 hp on the wheels, BMW seems like you outproven yourself with this engine!!!
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Puerto Rican 335d Click here to enlarge
        Congrats Terry, BTW this was done w/o a modified intake so I gather another 5-7 hp on the wheels, BMW seems like you outproven yourself with this engine!!!
        x2 I was about to say the same. With an intake and catless downpipe. I think you can get another 10-15 whp midrange along with some torque. That engine is doing great with just a tune.
      1. Blitz535i's Avatar
        Blitz535i -
        Nicely done Terry; this will be a very nice platform as far as performance/economy are concerned. It will be interesting to sit back and watch how far this engine can be pushed as other performance mods are created for it.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by xbox_fan Click here to enlarge
        Is it just me or is that picture not the best proof of BMW doing things right! The engine sits almost behind the front wheels, it is far from an VW/Audi engine bay!
        Good point, this four cylinder does offer great packaging.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Sooo, how much room in the turbo area? Click here to enlarge Let's squeeze a big one on there right away heh
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by dzenno Click here to enlarge
        Sooo, how much room in the turbo area? Click here to enlarge Let's squeeze a big one on there right away heh
        I think the N20 is going to have more room to work with than the N54.
      1. LostMarine's Avatar
        LostMarine -
        what the MPG on an N20?
      1. fundahl's Avatar
        fundahl -
        I think it's like 33combined.
      1. mykal's Avatar
        mykal -
        I definitely want one for the wife. Can't wait to see what this engine does with meth/bolt-ons.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by mykal Click here to enlarge
        I definitely want one for the wife. Can't wait to see what this engine does with meth/bolt-ons.
        We should see these in the 12's with full bolt on's and meth.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        We should see these in the 12's with full bolt on's and meth.
        With slicks... The car is heavy.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        With slicks... The car is heavy.
        Same range as the E90.
      1. krnnerdboy's Avatar
        krnnerdboy -
        I just drove one and it didn't impress me with the power vs my wife's 328 09. The power curve is very deceiving apparently. Now if only they would put this motor in the new mini Cooper GP. 260whp in a mini and I'd trade in my boss....
      1. bigdnno98's Avatar
        bigdnno98 -
        n20 just put down 270/301 with BMS tune and ER DP! Nice! I bet it doesn't take 5 years to get a turbo upgrade!
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
        n20 just put down 270/301 with BMS tune and ER DP! Nice! I bet it doesn't take 5 years to get a turbo upgrade!
        Holy $#@! thats fast. 91 octane 19-21 psi?
      1. Q4P's Avatar
        Q4P -
        Stock 335i power... very nice. I wonder what it could do with other forms of fuel...
      1. JBieberFan's Avatar
        JBieberFan -
        Hey there, does anybody know where I can get a Justin Bieber screen saver that is not full with viruses? Best wishes Barbara
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by bigdnno98 Click here to enlarge
        n20 just put down 270/301 with BMS tune and ER DP! Nice! I bet it doesn't take 5 years to get a turbo upgrade!
        Whose N20 did that? Graph?
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by JBieberFan Click here to enlarge
        Hey there, does anybody know where I can get a Justin Bieber screen saver that is not full with viruses? Best wishes Barbara
        yes
        www.redtube.com