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    • 700+ rwhp stock internal N55 - BigBoost 3.4 BMW F22 M235i hits 701 wheel horsepower on E85

      A stout stock internal N55 right here. Topping 700 rear wheel horsepower is impressive and that is exactly what this F22 M235i does. 701.2 horsepower to the rear wheels with a BigBoost 3.4 turbo kit on full E85.


      The car is running port fuel injection but also an upgraded HPFP from Spool Performance:

      MHD custom tune
      BigBoost 3.4 turbo kit
      Spool Performance FX 150 HPFP
      Precision Raceworks coils
      Evolution of Speed intake manifold
      Port injection
      Full E85
      Stock engine

      701 WHP and 682 WTQ:


      There is a bit of lag, the correction factor is cut off, and they only revved it to 6k rpm but based on the peak figures it certainly is one of the stronger N55's out there. The torque curve drops and gets choppy past 5250 rpm for whatever reason.

      It certainly is nice to see a stock internal N55 showing off.

      This article was originally published in forum thread: 700+ rwhp stock internal N55 - BigBoost 3.4 BMW F22 M235i hits 701 wheel horsepower on E85 started by Sticky View original post
      Comments 2 Comments
      1. Roll up or pull up's Avatar
        Roll up or pull up -
        Will the stock engine hold up?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Roll up or pull up Click here to enlarge
        Will the stock engine hold up?
        If an N54 can I don't see why the N55 can't.