Close

    • PRO TUNING FREAKS Cobb AP tuned upgraded turbo and ported cylinder head N54 E90 335i hits 553 wheel horsepower 631 wheel torque on pump gas and meth - N54 Twin Turbo World Record

      Last night I hit the dyno to see what the car can do with the new ported N54 cylinder head, RB turbos, 3.5bar TMAP sensor from the new BMW N20 four-cylinder motor, FBO (catless), pump 94 octane and meth, stock turbo inlet pipes. Key thing here, this is with a tune that sees ZERO timing corrections everywhere on all cylinders and timing that is set right at MBT for this level of boost and this car's given octane. I've run the car on the street with this exact setup this morning, number of pulls, it's pretty ridiculous.

      553WHP/631WTQ - PUMP GAS (94 Octane) + METH


      In terms of the tune, it was running more than 22.5psi in midrange, 19.7psi peak at 6k rpm, 17.5-18psi at redline. Logs of actual boost in midrange aren't available as I found out that ATP's datalogging needs to be updated to accomodate the 3.5bar scaling. I was going off my p3 gauge for midrange boost when pushed past the 22.5psi datalogging limit. I don't recommend this to anyone before ATP is updated for 3.5bar datalog scaling, it just had to be done last night and I decided to push on as I get to do what I feel is best for my car LOL and that's make some power

      No leanouts or fuel issues. LTFTs goes down to zero during the pull, STFTs trend to high negative 20s with meth. The car was running close to if not 100% meth, three 1.0mm nozzles, two of them in the FMIC outlet silicone coupler and another up in the ER charge pipe past the elbow.

      I'll be fine tuning things over the coming days but to be perfectly honest and blunt, last night was about turning things UP and NOT fine tuning. It was to find MBT and push boost as far as it can go while limiting wastegate duty cycle to about 73-74% everywhere especially past 6k rpm. It was also to experiment with various VANOS changes. I experimented with higher wg duty cycles before and RBs didn't like it. It also introduces too much backpressure into the system even fully catless that the car doesn't like it.

      So, is there more power left here. We'll see when the intake pipes are swapped for something better flowing. @George Smooth reported +19whp at his high altitude in South Africa so possibly another 20 in there without any changes. Then there's mixing race gas or E85 into it to see if there's anything there in terms of additional power through more timing. All out its very possible this will be a 575-585whp setup once all is said and done, dare I say 600 LOL

      Other runs from last night:


      By the way, on Smoothing of zero the car made 555WHP Nice even number easy to remember

      When that torque hits it feels like a big turbo came on!! Swoooooosh!

      Specs:

      PTF Cobb AP Tune
      PTF Ported Cylinder Head w/ +1mm enlarged Super Alloy Exhaust Valves
      RB Turbos
      3.5bar BMW N20 engine TMAP sensor
      Aquamist HFS-4 Methanol Injection (100% meth, three 1.0mm nozzles, Howerton 2.2gal trunk mounted tank)
      AR Catless Downpipes
      HKS Legamax Exhaust
      Custom Mr.5-like intake
      KL Racing (aka Big Tom) FMIC
      ER 3" post FMIC piping (up pipe, charge Pipe) + Tial BOV
      Okada Plasma Ignition Coils + OEM Plugs
      HPF Stage 2 Feramic Clutch + OEM Dual Mass Flywheel
      DSS 1000hp rear axles
      Rear m3 suspension bits
      2.56 Quaife LSD
      17x9 APEX ARC-8 wheels
      Nitto 555 245/45/17 front, Nitto 555R 275/40/17 rear tires
      Vorsteiner Carbon Fiber hood (single sided, vented)
      Carbon Fiber trunk
      Sunoco (Petro Canada) pump 94 Octane




      EDIT: Some people asked to see the conditions from the dyno, STD correction factor as well as the same run but in SAE. Here they are below:

      CONDITIONS AND STD CORRECTION (i.e. STD resulted in 1.00 correction, so no correction basically):



      SAE numbers for the same run (SAE correction was 0.97, so 3% lower than STD):


      This article was originally published in forum thread: PTF UPDATE: 553WHP 631WTQ - N54 TwinTurbo World Record started by dzenno@ProTUNING Freaks View original post
      Comments 217 Comments
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Depends on the year if you have a small or large pumpkin
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by ajm8127 Click here to enlarge
        What were you using as far as bushings to mount the diff to the subframe?
        OEM diff bushings..now ordered a set of Delrin from Turner
      1. farbmw's Avatar
        farbmw -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        OEM diff bushings..now ordered a set of Delrin from Turner
        Not going soild?
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by farbmw Click here to enlarge
        Not going soild?
        Delrin should be as good as solid but provide less "buzzzzz"
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Some people asked to see the conditions from the dyno, STD correction factor as well as the same run but in SAE. Updated original post...
      1. onebadmofo's Avatar
        onebadmofo -
        Someone needs to make upgraded DS already. I'm scared to launch my car right now.
      1. rader1's Avatar
        rader1 -
        Click here to enlarge Originally Posted by onebadmofo Click here to enlarge
        Someone needs to make upgraded DS already. I'm scared to launch my car right now.
        Honestly, most drive line shops could probably do it without much problems. Of coarse, you could go ahead and invest in a CF driveshaft if you've got a couple grand lying around.

        TBH, this looks like it is a u-joint problem not a DS problem.
      1. BavarianBullet's Avatar
        BavarianBullet -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        They said it flows poorly compared to everything they've ever done before including everything in the American Muscle arsenal and a bunch of Porsche, VW, Subaru heads...this was their first DI head ever which was part of the reason they were interested in seeing the results
        Yes but that statement should be expanded to cover whether they were talking about N/A or F/I and pure CFM or based on valve and port sizes.

        The N54 head has fairly small ports and valves because it's not meant to turn high RPM. The 230CFM or so it does flow (ported) on the intake side is likely sufficient at a high boost pressure to make some serious HP. I am a little more worried about the exhaust side but with a turbo behind it, if the RPMs aren't too high, you may be able to get power up pretty high. (800WHP @ 6500rpm is about 650lb-ft of torque, if you can carry it that high, like Shiv did w/500lb-ft.)

        If Vargas/Morkin/anyone ever comes through with GTX twins for the N54, that head on a 9:1CR built engine is going to make serious power as long as the block survives.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Agree.
      1. CaptainInsano's Avatar
        CaptainInsano -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        Delrin should be as good as solid but provide less "buzzzzz"
        The buzz isn't that bad with my solid bushings. I've heard much worse, and I kind of like the noise.
      1. orange's Avatar
        orange -
        I saw the shaft and pumpkin @ Ivo's today. That is one clean cut man. That must have been a serious launch.
      1. Jeffman's Avatar
        Jeffman -
        Totally awesome! Which front bumper are you using? It really allows great airflow on the FMIC. I'm planning to upgrade my stock pre-LCI E90 bumper. Thanks!
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by orange Click here to enlarge
        I saw the shaft and pumpkin @ Ivo's today. That is one clean cut man. That must have been a serious launch.
        Serious wheel hop is more like it.

        Click here to enlarge Originally Posted by Jeffman Click here to enlarge
        Totally awesome! Which front bumper are you using? It really allows great airflow on the FMIC. I'm planning to upgrade my stock pre-LCI E90 bumper. Thanks!
        Thanks. Its the m3 replica bumper. I also bought it for that reason as well.
      1. ajm8127's Avatar
        ajm8127 -
        I wonder if there is a shoulder machined into the pinion shaft right at the location it broke. Maybe a step down from the inner diameter of the bearing to the diameter of the splines. That would explain why the break was so clean.
      1. nafoo's Avatar
        nafoo -
        Bump for update!
      1. bigdnno98's Avatar
        bigdnno98 -
        Haha you're bumping cause tony said Dzenno had some secret prototypes lol!
      1. bigdnno98's Avatar
        bigdnno98 -
        I agree. Give us something