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    • 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. nafoo's Avatar
        nafoo -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        Anyone ready and willing to send me their 3.08 or 3.46 (large housing) pumpkin to drop in and settle the TQ debate let me know...I say numbers will be either the same or slightly higher with a 3.08 or 3.46 Click here to enlarge
        You already got rid of your last LSD?
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by nafoo Click here to enlarge
        You already got rid of your last LSD?
        Sold it when I got this one.
      1. ChuckD05's Avatar
        ChuckD05 -
        ill send you mine if you send it back with an LSD in it Click here to enlarge
      1. Tzu's Avatar
        Tzu -
        I have the OEM open diff final drive unit you can use, not a complete pumpkin.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by Tzu Click here to enlarge
        I have the OEM open diff final drive unit you can use, not a complete pumpkin.
        That'd be more involving than I'd like at this point but thanks, appreciate it. Just a quick swap and re-dyno would be best.
      1. JoshBoody's Avatar
        JoshBoody -
        Inertia dyno measures power… you can plot mph only. The load “varying” type measure torque and you need an rpm pickup I believe… maybe they can do either.

        To understand that gearing doesn’t matter… think of this:
        1st gear you accelerate from 10 to 20mph very quickly, but you were only doing 10mph of work to start. 4th gear you accelerate 10mph also (much slower) from 90 to 100, but you were doing 90mph of work to begin with… End result is same power (assuming same rpm range, load, and no difference drivetrain loss). You just plot by rpm for engine HP... its the same.

        There’s no loss due to inertia… maybe very very negligible. Engine reving with no load is completely different. The HP effect is drivetrain loss, which would be hard to determine if it would be higher or lower with new final drive. The pinion is larger, but rotates slower… don’t know. The tranny in 3rd compared to 4th should have higher HP loss. The end result in the 2 setups is very close in my opinion.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by JoshBoody Click here to enlarge
        The tranny in 3rd compared to 4th should have higher HP loss.
        This.

        Its already proven that on "this" car higher gears will result in more power on a Dynojet due to the way the car loads up. Higher gears, on a Dynojet, will result in more power. This is why some of the guys have started to dyno their cars in 5th gear. I simply can't even do 4th as its way too dangerous given where it'll end up speed wise past 6500rpm so I'm stuck with 3rd which will incur a bit of loss. This is another reason I'd love to get a 3.08 in the car to have an even more direct comparison and do a dyno in 4th gear again instead of 3rd which I have to do now.
      1. ChuckD05's Avatar
        ChuckD05 -
        go do a 60-130, thanks

        lol... when are you planning to do some testing?
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by ChuckD05 Click here to enlarge
        go do a 60-130, thanks

        lol... when are you planning to do some testing?
        As soon as tuning is 100%
      1. themyst's Avatar
        themyst -
        Late to the party due to life events getting in the way, but congratulations on the sick numbers.
      1. 654's Avatar
        654 -
        Well done Dzenno!
      1. Sered's Avatar
        Sered -
        Do a barrel roll!
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Thanks guys.

        And this is what happens when you launch this 335 with all possible rear suspension mods to keep the thing from wheel hopping and just have it go:

        Click here to enlarge

        Click here to enlarge

        Click here to enlarge

        Click here to enlarge



        This torque needs to be RESPECTED Click here to enlarge LOL Laser cutting the driveshaft right there.

        I sourced another 3.08 diff as well, although just OEM at the moment. 2.56 will take a back seat for the moment until I find a replacement pinion. DSS axles though stayed put.
      1. bigdnno98's Avatar
        bigdnno98 -
        Dammit I can't see the pictures on my stupid work computer!!!!!! Click here to enlarge

        I take it something bad happened?
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        driveshaft broke lol

        not to worry though, something much better is coming to replace it
      1. bigdnno98's Avatar
        bigdnno98 -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        driveshaft broke lol

        not to worry though, something much better is coming to replace it
        I think I posted about this very same situation somewhere recently Click here to enlarge
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Sorry to clarify, the protruding tip of the pinion gear broke, not driveshaft..but the driveshaft as a result also was damaged as the inner splines got stripped when it spun...crazy Click here to enlarge

        Beef up time!
      1. Flinchy's Avatar
        Flinchy -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        Sorry to clarify, the protruding tip of the pinion gear broke, not driveshaft..but the driveshaft as a result also was damaged as the inner splines got stripped when it spun...crazy Click here to enlarge

        Beef up time!
        I take it there's a solid chance of this happening to anyone with this level of power/torque? Click here to enlarge
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by Flinchy Click here to enlarge
        I take it there's a solid chance of this happening to anyone with this level of power/torque? Click here to enlarge
        I think it happened to @BuraQ as well with the OEM 2.56 diff. Something similar if not the same also happened to @onebadmofo. They both had considerably less torque. All it takes is some bad wheel hop.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Sered Click here to enlarge
        Do a barrel roll!
        LOL


        Click here to enlarge