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    • S55 power output bar raised yet again - RK-Tunes single turbo BMW F80 M3 dynos 1158 rwhp

      The back and forth on the S55 platform regarding the output world record sure is fun for BimmerBoost to watch. It was just earlier this month that Kratos hit 1150.3 rear wheel horsepower which topped RK-Tunes who formerly held the record at 1087.9.


      Well, RK-Tunes wanted the title back and the S55 output world record now stands at 1158.6 on a Dynojet in STD correction:


      Now, these are two very difference approaches. Kratos is obviously building a kit that goes in the stock location with twins whereas RK-Tunes has a big single sticking out of the hood.

      Jordan of RK-Tunes did not state the boost pressure but only that they are at 58% duty cycle.

      Mod list again:

      Motor Assembled in house by RK-Tunes
      Pauter rods
      ARP head studs
      Wiseco Maximum PSI Spec Pistons
      Maximum PSI Keyed Crank Hub
      Custom Top Mount manifold by Ricky at 88 Lab
      Dodson Clutches
      DSS Driveshaft and Axles
      Treadstone 4.5" Intercooler
      Southbay 1200cc port injectors
      Custom fuel system
      Chinese Intake Manifold
      TPG modified rear brake calipers
      17" wheels with drag radials or slicks
      BC Racing 2-way shocks and custom suspension

      Will this end here? Of course not. Expect the back and forth to continue.


      This article was originally published in forum thread: S55 power output bar raised yet again - RK-Tunes single turbo BMW F80 M3 dynos 1158 rwhp started by Sticky View original post
      Comments 9 Comments
      1. Payam@BMS's Avatar
        Payam@BMS -
        Man, this thing will rip insane at the 1/4 or 1/2.
      1. Abacus38's Avatar
        Abacus38 -
        This thing is a monster. It’s actually able to hold 1100whp up top unlike the Kratos setup.
      1. Flinchy's Avatar
        Flinchy -
        Wow so close to 1000ft-lb..

        Also, deleted the factory W2A? Lol @ Chinese intake. Guess if it works...
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by Flinchy Click here to enlarge
        Wow so close to 1000ft-lb..

        Also, deleted the factory W2A? Lol @ Chinese intake. Guess if it works...
        We sell a bunch of those Chinese intake manifolds, they do fantastic actually!

        http://www.burgertuning.com/N54_PORT..._MANIFOLD.html

        Much better than this happening Click here to enlarge :

        Attachment 58622
      1. Sticky's Avatar
        Sticky -
        Already broken...

        That said, there are a few other key details that likely will be posted.
      1. Eleventeen's Avatar
        Eleventeen -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Already broken...
        The car, the record, or the Chinese manifold?
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by Eleventeen Click here to enlarge
        The car, the record, or the Chinese manifold?
        I was thinking the same thing lol.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Eleventeen Click here to enlarge
        The car, the record, or the Chinese manifold?
        The output record gentlemen.
      1. Domino_86's Avatar
        Domino_86 -
        They may want to pull the hood shooting flames like that at least on the dyno. Ridiculous BTW.