• 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 -
        Click here to enlarge Originally Posted by jpsimon Click here to enlarge
        I'm probably in the minority on this forum, but factoring in the cost of the headwork on top of the RB's, I'd much rather just get a single. Either way these results are very nice. When are you getting the upgraded intake pipes?
        You guys, all of a sudden its as if I said hey everyone, get an upgraded head, don't upgrade your turbos. Head work will shine the larger you go with turbos, no doubt. Probably some cams will be made too eventually, who knows. That's not the point of this thread.

        Big turbo/turbos aren't for everyone, just like head work isn't. Some people like to also just drive their car stock and invest their money more wisely and get great returns on it Click here to enlarge

        Intake pipes are next.
      1. Eleventeen's Avatar
        Eleventeen -
        That torque is $#@!ing ridiculous.
      1. VNeBLOB42's Avatar
        VNeBLOB42 -
        Nice! Can't wait to see what you can do with Ethanol.
      1. Wedge1967's Avatar
        Wedge1967 -
        Absolutely. All in all, great numbers and great work on your part. Thanks dzenno
      1. jpsimon's Avatar
        jpsimon -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        You guys, all of a sudden its as if I said hey everyone, get an upgraded head, don't upgrade your turbos. Head work will shine the larger you go with turbos, no doubt. Probably some cams will be made too eventually, who knows. That's not the point of this thread.

        Big turbo/turbos aren't for everyone, just like head work isn't. Some people like to also just drive their car stock and invest their money more wisely and get great returns on it Click here to enlarge

        Intake pipes are next.
        I'm just thinking out loud. Anyways, keep on doing your thing. Can't wait to see the intake piping results
      1. Irishace's Avatar
        Irishace -
        WTG Dzenno. This is awesome! Great work trailblazing once again.
      1. enrita's Avatar
        enrita -
        great work Dzenno! congrats on the record!
      1. CaptainInsano's Avatar
        CaptainInsano -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        You guys, all of a sudden its as if I said hey everyone, get an upgraded head, don't upgrade your turbos. Head work will shine the larger you go with turbos, no doubt. Probably some cams will be made too eventually, who knows. That's not the point of this thread.

        Big turbo/turbos aren't for everyone, just like head work isn't. Some people like to also just drive their car stock and invest their money more wisely and get great returns on it Click here to enlarge

        Intake pipes are next.
        Yup, they are overlapping and independent mods. I'm drooling right now.
      1. docalex1's Avatar
        docalex1 -
        Congrat Dzennan!
      1. ChuckD05's Avatar
        ChuckD05 -
        Click here to enlarge Originally Posted by jpsimon Click here to enlarge
        I'm probably in the minority on this forum, but factoring in the cost of the headwork on top of the RB's, I'd much rather just get a single. Either way these results are very nice. When are you getting the upgraded intake pipes?

        i would bet you would change your mind if you drove dzens and a single back to back for a full day each
      1. Torgus's Avatar
        Torgus -
        Awesome results. Any more info on the inlet pipes? Please tell me you will sell these!
      1. carcars's Avatar
        carcars -
        Click here to enlargeClick here to enlargeClick here to enlarge great work Dzenno!
      1. jpsimon's Avatar
        jpsimon -
        Click here to enlarge Originally Posted by ChuckD05 Click here to enlarge
        i would bet you would change your mind if you drove dzens and a single back to back for a full day each
        Have you driven dzenno's car and a single turbo (with the medium or larger turbo) n54 back to back for a full day each? I take nothing away from dzenno, his car is coming together nicely. But I would personally much rather have a single setup that is capable of much more power up top. But that's just me.

        My intentions were not to turn this into a twin vs single debate again. So on this note i digress. Let's keep it on topic.
      1. funkmobster's Avatar
        funkmobster -
        Congrats with the record Dzenno , great results.

        I'm interested in how much hp gain was made with the head.
        Have these boost numbers been made before on a stock head RB car?
      1. JoshBoody's Avatar
        JoshBoody -
        Click here to enlarge Originally Posted by funkmobster Click here to enlarge
        Congrats with the record Dzenno , great results.

        I'm interested in how much hp gain was made with the head.
        Have these boost numbers been made before on a stock head RB car?
        That’s a good question, and I believe DZ on the stock head experimented with around 70% DC on the dyno… he mentioned this before I think. If this is true it shows gains (considerable) in the mid-range over the stock head. It would be great to match the datalogs (mainly timing) on the different hardware.

        DZ, you can manipulate the boost numbers in the datalog by correlating MAP to 3.5bar/5v and it would be very accurate. send them to me and I'll do it Click here to enlarge
      1. boosted5's Avatar
        boosted5 -
        Would you think the vac head flows as good as the head you are currently running? Besides the bigger exhaust valves
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        There are no results with the vac head, it hasnt been installed on any n54 yet to my knowledge. They also didn't upgrade exhaust valves either and flow numbers were lower back then. Things change though and demand drives product development so I wouldnt be surprised to see a number of head solutions come to life in the coming months
      1. nafoo's Avatar
        nafoo -
        I want head . . . work.
      1. bobS's Avatar
        bobS -
        This is great, nice work DZ. I can only imagine how good that tq feels, wow the thing must jump when you get on it!
      1. DefactoM6's Avatar
        DefactoM6 -
        Click here to enlarge Originally Posted by jpsimon Click here to enlarge
        Have you driven dzenno's car and a single turbo (with the medium or larger turbo) n54 back to back for a full day each? I take nothing away from dzenno, his car is coming together nicely. But I would personally much rather have a single setup that is capable of much more power up top. But that's just me.

        My intentions were not to turn this into a twin vs single debate again. So on this note i digress. Let's keep it on topic.

        I normally would be with you, but...if 631wtq can last on his car without a rod bending or head lifting after significant beating, well...631wtq. C'mon. Let me say it again...631wtq. That's a ~130wtq gain over what most maxed out pump+meth RB setups (or even stock setups for that matter) make. On stock headers/turbine housings. And on stock intake pipes. From $#@!ing headwork. Which will CERTAINLY become less expensive as more people explore this option. The biggest thing I want to see, frankly...is if 631-670wtq (assuming anywhere from a 0-40wtq gain from intake pipes and cleaning up the tune) is able to hold together on this engine and other engines, then the N54 will legitimately have a claim to something that the VR38DETT simply can't...namely, the ability to hold over 600wtq on a stock bottom end. And if Dzenan is exploring what I would in his situation besides the intake pipes, namely doing an EWG conversion a la OG DSMs, he should be able to make that TQ curve a whole lot flatter from it's 631 peak. Which will mean serious WHP numbers, and TQ that will embarrass some pretty big cars. And will make the scene for some GTXes quite serious. Everyone should brace oneself...n54 development is taking off...