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    • Vargas Stage III Turbo upgrade for 335/135 N54 motor hits 572 wheel horsepower on 91 octane pump gas (no meth injection) with Cobb flash

      Well here are some results for the Vargas Stage III upgrade that has caused the N54 forum section to basically be engaged in chaos for the past few months. From accusations of vaporware, to comparison to single turbo upgrades, to countless other arguments the day has come and the Stage III Vargas Turbo upgrade dyno'd on 91 octane with no meth 572 horsepower to the rear wheels. This is with a Cobb flash tuned by BimmerBoost vendor Pro-Tuning Freaks.


      Impressive? Yep, sure is and this seems to also be a 91 octane pump gas only world record for the N54. Now keep in mind this is just the beginning. What will it do with meth? What will do on E85? What will it do with race gas and big boost? What about different turbos? Sky appears to be the limit but for now this kind of performance on pump gas sure is a big boost (hah, get it?) to the N54 scene.

      Congratulations to all involved, Vargas Turbo Tech, Pro-Tuning Freaks, Cobb, and just the N54 community as well. The impossible just became possible. Pictures, video, and dynograph below.




      This article was originally published in forum thread: 572WHP 537WTQ - ACN 91 Octane, no meth - VTT Stage 3 Early Dynos PTF / COBB Protune started by VargasTurboTech View original post
      Comments 575 Comments
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        I'd address the regulator next imho
        I have all the stuff here to do it. Will probably screw with it after Shift Sector.
      1. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        lol I'm not going to pull a 'BuraQ'.
        Speaking of stuff in your sig, Terry could I get more info on the N54 Stock Turbos WHP WR (456)??? Specifically what it stock baselined at (to determine the delta) & on what kinda dyno (not that it really matter, but just to avoid forum BS).
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by benzy89 Click here to enlarge
        Speaking of stuff in your sig, Terry could I get more info on the N54 Stock Turbos WHP WR (456)??? Specifically what it stock baselined at (to determine the delta) & on what kinda dyno (not that it really matter, but just to avoid forum BS).
        Sure, same dynojet we always use @ specialty Z. 100% unmodified N54s on pump normally put down 275-280rw there. Once you get involved with heavy mods, a back end flash, JB4, etc, there really is no baseline. It can be whatever you want it to be.

        This wasn't the "record" run but was done on our E92 without meth and with heavy rims/18mm spacers. So it's sort of more impressive. Has some charts and data for you too. http://www.n54tech.com/forums/showthread.php?t=18578
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by ATP Click here to enlarge
        @Sticky can certainly ban Sikh from this thread.
        @VargasTurboTech can do it himself if he likes.
      1. Tony@VargasTurboTech's Avatar
        Tony@VargasTurboTech -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        @VargasTurboTech can do it himself if he likes.
        Hey Sticky, just to be clear. I can only ban them when I first start the thread right? Not at anytime after that if they start becoming a problem?
      1. Tony@VargasTurboTech's Avatar
        Tony@VargasTurboTech -
        Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
        Hey Sticky, just to be clear. I can only ban them when I first start the thread right? Not at anytime after that if they start becoming a problem?
        RETRACT, just realized you can do it anytime. Man I wish I knew that. Would have saved myself some headaches. Thanks sticky
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
        Hey Sticky, just to be clear. I can only ban them when I first start the thread right? Not at anytime after that if they start becoming a problem?
        You can do both.

        Should be under "thread tools"
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
        RETRACT, just realized you can do it anytime. Man I wish I knew that. Would have saved myself some headaches. Thanks sticky
        No problem, try to help vendor as much as possible keep their threads on track.
      1. themyst's Avatar
        themyst -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        I run load at 110 because that is the only way to get the DME to give proper post shift timing consistently with automatics. It's a bit of a headache at times but Cobb added a 3d fuel scaling table awhile ago that made it a lot cleaner. I'd love for them to expose all the timing tables which would allow us to do up the back end flash differently. Some day. But we can't have cars running slower than they should be until then. So we do the best we can with the tools we have and keep our eyes open for areas to improve.

        As I said before if D wants to believe whatever he is doing is the best way more power to him. No reason to bicker over it. Normally these types of scores are settled at the track or runway anyway. Click here to enlarge
        That timing flatline is a real $#@! whore fwiw. Only way for the car to run even close to its potential on a 6AT is to stack.

        Flash only is the best way to do things... only if all the tables are available. Unfortunately they are not which is why we stack instead of dealing with utter nonsense trying to workaround DME limitations.

        Like you said, maybe someday. Click here to enlarge
      1. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by themyst Click here to enlarge
        That timing flatline is a real $#@! whore fwiw. Only way for the car to run even close to its potential on a 6AT is to stack.
        What is this timing flatline you speak of?? Click here to enlarge I haven't had the issue since the Alpina flash & revised PROtunes
      1. BMW86's Avatar
        BMW86 -
        Do want! Pls make this work for the RHD!!!
      1. themyst's Avatar
        themyst -
        Click here to enlarge Originally Posted by benzy89 Click here to enlarge
        What is this timing flatline you speak of?? Click here to enlarge I haven't had the issue since the Alpina flash & revised PROtunes
        Short shift 3-4 on an E85 tune around 6200 RPM, log, report back. The major correction on the 3-4 shift still isn't fixed. It's only fixed for 5th and 6th gear which was a completely different issue. If it were a 3 degree correction on those cylinders all the time post-shift, that's something all of us can live with, problem is that isn't the case.

        Either way, getting a transmission flash to work around a tuning issue that can't be fixed otherwise is no better than stacking a piggyback for boost control.

        To this date, I still can't figure out why people are harping on keeping everything in the DME, especially when these tuners are simply trying to find ways around those limitations akin to a piggyback. Try running race code on a 6AT with RBs/VTT stg2/etc. and see what happens.

        Like I said earlier, give me all the tables, and I'll be the first to praise flash tuning. Until then it's an unnecessary donkey race fighting against the DME logic, the same logic the tuners are praising.

        You can run a 190 load straight across and then stack a piggyback, but won't save your transmission any more so than running a 100 load straight across.

        Besides, the transmission can perceive torque independent of the DME and make adjustments, hence why transmission adaptations are present in INPA. The same reason why the Alpina flash works in regards to fixing your issue, at least in 5th.

        Of course, if you have a 6MT and don't have NLS/2-step, Cobb may be the best solution.

        -edit I was responding to a good number of you, too lazy to quote everyone.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        @themyst, what data do you have correlating load vs what the transmission is doing (e.g. line pressure)? I would love to see some hard data proving one or the other. All we know at the moment is that by flashing the TCU the 5th gear flatline issue is fixed given the data gathered.
      1. Terry@BMS's Avatar
        Terry@BMS -
        The transmission doesn't use load. It uses torque. And with the right tools you can log everything going on inside it including line pressure, temperature, torque, etc, via the OBDII port. Click here to enlarge
      1. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        themyst , what data do you have correlating load vs what the transmission is doing (e.g. line pressure)? I would love to see some hard data proving one or the other. All we know at the moment is that by flashing the TCU the 5th gear flatline issue is fixed given the data gathered.
        He's looking for 3rd -> 4th gear timing data. He agrees that the Alpina flash fixed the 5th & 6th gear flatline.

        I'll try to get some data since I have my E85 tune on now.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        @Terry@BMS Any chance you could share a log showing rpm boost timing and 6AT line pressure before/after your changes?
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by benzy89 Click here to enlarge
        He's looking for 3rd -> 4th gear timing data. He agrees that the Alpina flash fixed the 5th & 6th gear flatline.

        I'll try to get some data since I have my E85 tune on now.
        Understood. I was asking for clarification on 100 vs 190 load being the same when it came to what the TCU/transmission was doing. Not saying it isn't true, just looking for data showing it
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        @Terry@BMS Any chance you could share a log showing rpm boost timing and 6AT line pressure before/after your changes?
        Not at this time. Maybe some day. Click here to enlarge But the log would have for example rpm, gear, pedal input, line pressure, fluid temperature, torque target, actual torque, torque converter lockup status, etc. The trans module does not monitor timing or boost.
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        Understood. I was asking for clarification on 100 vs 190 load being the same when it came to what the TCU/transmission was doing. Not saying it isn't true, just looking for data showing it
        It's definitely not. The 100 load has a much lower torque than 190 so the trans shifts with a lower line pressure. Unless you account for that specifically in your tuning.
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Ok fair enough