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    • S55 platform world horsepower record broken - BMW F80 M3 with KRATOS KRAS55Bi Turbo System pulls 1150 horsepower to the wheels

      KRATOS did not just break the previous S55 record of 1087 wheel horsepower they also set several new overall BMW power records in the process. Frankly, BimmerBoost.com is having trouble compiling them all. This exceeds any recorded F-Series BMW to our knowledge as well as any recorded M3.


      The KRATOS KRAS55Bi 1150 wheel pull essentially ushers in a new era of BMW power. The closest BMW 3-Series we can find to this output is an E30 with a turbocharged S38 swap making 1225 horsepower. Again, no factory M3 motor or modern F-Series including the S63 V8 powered models are making more power.

      Let's look at the graph:


      Looking at the their previous pull of 975 whp at 35 psi you could tell based on the torque curve there was more in it. Not to mention the log.

      They could squeeze more out of it but at this point you have to start worrying about the block integrity plus nobody else is putting the DCT transmission through this level of output. As the fuel used is Ignite E85 which is more consistent than pump E85 fuel timing likely could safely be bumped a little bit.

      You could also look into custom cams but these turbos are already making over 300 wheel horsepower more than what they are rated to make by KRATOS. What more do you want?

      Mod list below and keep in mind this pull was done with a recorded 77 degree ambient temperature. There literally is nothing hidden here and nothing left to prove regarding what these turbos can do.

      Keep in mind the KRAS55Ti Titanium set is coming next.

      List Of Modifications:
      Built Engine Stock Bore/Compression (CP Pistons/Carrillo Rods)
      Headgames Motorworks Cylinder Head (Please Contact Headgames For Details)
      ASR Engineering Intercooler
      ASR Engineering Heat Exchanger
      Catless Downpipes
      Dodson Sportsman Plus DCT Clutch Kit
      Fuel-It PI
      Stock Intake Manifold
      Burger Tuning 4 Bar Map Sensor Kit
      Maximum PSI Crank Hub kit
      Bootmod3
      HCP Custom 4 Bar Tune
      KRAS55Bi Turbo System (Standard Billet Wheel Option)
      Ignite E85 (83% Via Fuel-It Sensor)
      Motul Sport Esther Engine Oil

      More details from KRATOS:

      Quote Originally Posted by KRATOS
      KRAS55Bi Turbos Surpass 1150WHP

      It's with great pleasure that we at Global Motoring Group share the latest results of our KRATOS KRAS55Bi Turbo System.

      As many of you may know, within a week of completing an engine build on one of our developmental S55's we were able to put down preliminary dyno results of 975whp and 752wtq @ 35psi on pump E85. As the turbos clearly had much more left in them combined with the fact that the 35psi run is very close to the limit of the factory map sensor, we decided to move forward with installing a 4 bar map sensor that would enable us to dial in additional boost. Moreover, being that the KRAS55 line of turbo systems will begin their public release this month, we wanted to update those who have been following our recent developments.

      We reached out to Burger Motorsports as they had a Bosch 4 bar sensor upgrade kit that would work for the application. Unfortunately, their kit was not made for S55's, but with the help of Terry & Payam they were able to put a custom PnP harness together for us in only one day and promptly shipped it to us. Once installed, Halim@HCP rescaled the map sensor to prepare the car for further testing of the KRAS55Bi turbos. With the car dialed in on a HCP custom tune @ 41psi and Ignite E85 fuel (E83 Via Fuel-It Sensor) with an ambient temperature of 77F our KRAS55Bi's produced the following results listed below.

      While the KRAS55Bi turbo system does produce a stratospheric 1150whp and 985wtq, it is important to note that this S55 is still one of the most civil and docile daily drivers you will ever come across. The KRATOS brand has maintained focus on never sacrificing drivability and reliability for the sake of power output. KRATOS offers peak power beyond large single turbos with OEM twin turbo drivability and increased reliability. As we stated in our previous press release and have now further proven, "The notion that custom large single or large twin turbos are required to produce high output figures is now moot point."

      Availability
      KRAS55Bis will be shipping THIS MONTH!

      Pre-orders:
      Pre-orders will consist of a $500 refundable deposit meant to signal intent of purchase. Please contact a representative at info@asrkratos.com for more information regarding pre-ordering a KRAS55Bi system.

      This article was originally published in forum thread: S55 platform world horsepower record broken - BMW F80 M3 with KRATOS KRAS55Bi Turbo System pulls 1150 horsepower to the wheels started by Sticky View original post
      Comments 32 Comments
      1. Sales@KRATOS's Avatar
        Sales@KRATOS -
        Click here to enlarge Originally Posted by Domino_86 Click here to enlarge
        I'd like to see this on 1320 or ThatRacingChannel
        Already in the works! Click here to enlarge
      1. G0TB00ST?'s Avatar
        G0TB00ST? -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Several S54's topped 1000 whp but I don't remember seeing HPF hit higher than this on a Dynojet. I'll look.
        I did some digging and I believe you're right. The highest one I could find was 1010hp and like 650ish torque. Im just a s54 fan boy so its hard to accept the fact that its no longer king
      1. Sticky2's Avatar
        Sticky2 -
        Click here to enlarge Originally Posted by G0TB00ST? Click here to enlarge
        I did some digging and I believe you're right. The highest one I could find was 1010hp and like 650ish torque. Im just a s54 fan boy so its hard to accept the fact that its no longer king
        Saad has one in the 1000’s I think.
      1. CobraMarty's Avatar
        CobraMarty -
        The Valvetronic system is limiting to a point. It can be made to increase lift a little bit.
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by Sales@KRATOS Click here to enlarge
        Another point we wanted to mention regarding the power loss from 6300 to redline is as follows. Many people may not be familiar with the valvetronic system's limitations as it relates to valve spring pressure. We spent approximately 6 months working with Headgames so they could develop a valve spring with enough spring pressure to negate valve float as much as possible while still being able to maintain the functionality of the valvetronic system. If the valve spring pressure is too high the valvetronic system will not function properly and the throttle simply won't open. That being said, could we use more spring pressure? Of course, but it would be at the expense of potentially running into valvetronic and throttle issues. In short, Headgames was able to develop a valve spring that was a great compromise that helped overcome these obstacles. However, we may be at a mechanical limit that there currently is no solution for. Only time will tell with more R&D testing.
        This is very interesting.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by G0TB00ST? Click here to enlarge
        I did some digging and I believe you're right. The highest one I could find was 1010hp and like 650ish torque. Im just a s54 fan boy so its hard to accept the fact that its no longer king
        1046 whp Saad: https://www.bimmerboost.com/content....46-RWHP&page=2

        Incredible, the S55 topped the S54 or at least as measured on a Dynojet and look at how long it has been on the market.
      1. 93siro's Avatar
        93siro -
        Amazing stuff. The valvetrain is definitely giving up on the higher sides though.
      1. 93siro's Avatar
        93siro -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        1046 whp Saad: https://www.bimmerboost.com/content....46-RWHP&page=2

        Incredible, the S55 topped the S54 or at least as measured on a Dynojet and look at how long it has been on the market.
        This too

        https://www.bimmerboost.com/content....EFI-standalone
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by 93siro Click here to enlarge
        That Mustang is corrected as I recall but still impressive.

        We need to display these dyno records in a better manner and yes, I'm on it.
      1. MisterEm's Avatar
        MisterEm -
        Swedish built S54 turbos have surpassed 1200whp in 2013 or 2014. One of their motors is in an E21. Slick builds.

        They weren't much into intwerweb or dyno bragging then, or now. They maxed out the Euro Dynapacks back then at 1180 to the wheel at 6500 rpm. The SAAD 1046whp example looks even more odd.. considering MaxPSI hit over 900whp SAE on an untouched S54.

        The guys who build big S54s that I know of (becoming a rare breed like S38 builders) aren't playing the cyber jerk-off or dyno games.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by MisterEm Click here to enlarge
        Swedish built S54 turbos have surpassed 1200whp in 2013 or 2014. One of their motors is in an E21. Slick builds.
        The Swedes have some absurd builds but we don't have too much documentation. Anyway, there may a handful of more powerful S54's but we need data.

        Click here to enlarge Originally Posted by MisterEm Click here to enlarge
        The SAAD 1046whp example looks even more odd.. considering MaxPSI hit over 900whp SAE on an untouched S54.
        SAAD's example is impressive for the boost. The S54 seems to be slightly more efficient than the S55.

        Click here to enlarge Originally Posted by MisterEm Click here to enlarge
        The guys who build big S54s that I know of (becoming a rare breed like S38 builders) aren't playing the cyber jerk-off or dyno games.
        Wish they did though. The S38 is rumored to have topped 1500.
      1. allmotor_2000's Avatar
        allmotor_2000 -
        Nice work!

        Wish the 4bar was ready when I was fiddling with the M5. That 1100whp @ 35 would have been a force to reckon with > 40psi...