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    • And the BMW N54 horsepower record officially stands at 725 wheel horsepower - E92 335i with Vargas VTX-R 63 Stage 3 turbo upgrade, Cobb Flash, and PTF Pro Tune

      Well, it seems the back and forth of N54 tuning horsepower records is over... for now. Earlier this month Vargas Turbo Tech and Pro Tuning Freaks (with a Cobb flash) set the N54 hosrepower record at 693 wheel horsepower. That basically obliterated what anyone else had hit on this platform. A competing tuner with a single turbo (the Vargas VTX63 upgrade consists of twin turbos) N54 upgrade kit out of nowhere pulled out suspect numbers that eeked out a few more wheel horsepower.

      This became an ego pissing match of sorts but Vargas and Pro Tuning Freaks went back to the dyno to make some adjustments and managed to surprisingly quickly and easily take the horsepower record right back (and where it rightfully belongs due to the breakthrough being thanks to the Vargas work with the High Pressure Fuel Pump) with a 725 wheel horsepower pull.

      A video is included below along with two graphs. The E92 335i is equipped with a Pro Tuning Freaks pro tuning using the Cobb flash system, 109 octane race gas, meth injection, and of course the Vargas Turbo Technologies VTX-R 63 (GTX2863R) twin turbo upgrade and HPFP upgrade.

      Congratulations to Vargas, PTF, and Cobb for pushing the platform into new territory.





      This article was originally published in forum thread: Final VTT VTX63R Testing 725 WHP / 609WTQ PTF Pro Tune / COBB Flash started by VargasTurboTech View original post
      Comments 407 Comments
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        It just keeps getting better every year but I think this year is pretty special
        This is most definitely a special year.
      1. Sered's Avatar
        Sered -
        Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
        With just an intake and a tune, you can gain 50rwhp on a LS7.
        Not from what I've seen. Maybe with a new intake manifold and headers.

        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        Not sure where u got that. HKS is one of if not the best qualitt N54 exhaust on the market. Best piping, resonators mufflers. Definitely not restrictive at all.
        It's still a dual 2.5". You're at the power level where you need something better flowing than that.

        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        A single 3.5" flows less than dual 2.5"
        Not true. They flow about the same; considering a 3.5" also has more room for less bends than a dual 2.5" taking up the same space and only going through one muffler; the 3.5" generally wins. Do the math.
      1. CBR335's Avatar
        CBR335 -
        Click here to enlarge Originally Posted by Sered Click here to enlarge
        Not from what I've seen. Maybe with a new intake manifold and headers.



        It's still a dual 2.5". You're at the power level where you need something better flowing than that.



        Not true. They flow about the same; considering a 3.5" also has more room for less bends than a dual 2.5" taking up the same space and only going through one muffler; the 3.5" generally wins. Do the math.

        The total cross-sectional area of the 3.5" single is slightly lower than the 2.5" dual, but the frictional losses due to the exhaust wall surface area and the effect of bends would be greater in the dual exhaust. For a dual turbo setup though, I would definitely keep the exhaust streams divorced and run a dual 3".
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by CBR335 Click here to enlarge
        The total cross-sectional area of the 3.5" single is slightly lower than the 2.5" dual, but the frictional losses due to the exhaust wall surface area and the effect of bends would be greater in the dual exhaust. For a dual turbo setup though, I would definitely keep the exhaust streams divorced and run a dual 3".
        This.

        Btw i've done the math Click here to enlarge downpipes is where it starts to matter but even exhaust piping itself is not a concern until you go past 1000whp

        All you pick up with larger diameter piping is more noise at these power levels..try it out or best just mount a pressure probe on your exhaust and see how much backpressure its seeing
      1. Sered's Avatar
        Sered -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        This.

        Btw i've done the math Click here to enlarge downpipes is where it starts to matter but even exhaust piping itself is not a concern until you go past 1000whp

        All you pick up with larger diameter piping is more noise at these power levels..try it out or best just mount a pressure probe on your exhaust and see how much backpressure its seeing
        So 3.5" flows more than dual 2.5". Did you get that math right (its pretty simple calculating areas of circles)? I'm not sure dual 3" will be so easy to fit, honestly I'd doubt there will be any significant gains of a dual 3" over a single 4" (but there might be, who knows). I'd prefer the sound of a single exhaust over a dual, just personal preference. Also easier to make stealthy (I'm looking into a 328i bumper too, I'm already de-badged)

        I hear what you're saying for the 1000whp mark, and I've heard it before. I'm just saying you're wrong in reality as there is data that speaks otherwise. There's MANY MANY Supras running around with 4" exhausts that saw significant gains over their existing 3.5" setups when stepping into the 650whp+ range.
      1. Torgus's Avatar
        Torgus -
        The 335 is probably one of the best sleeper cars around. 328 bumper, 4'' exhaust to normal looking muffler, 328 badge, possible 700+ whp if not more. Talk about taking money from people...$#@!. Even if you pop the hood it can look stock other than the intake and possibly a charge pipe. Can beefed up DVs handle this HP?
      1. Sered's Avatar
        Sered -
        Click here to enlarge Originally Posted by Torgus Click here to enlarge
        The 335 is probably one of the best sleeper cars around. 328 bumper, normal looking muffler, 328 badge, possible 700+ whp if not more. Talk about taking money from people...$#@!.
        Click here to enlarge

        I'm going further. Looking for stock BMW wheels of some sort to fit some R888's in the back. I'll be taking them to a wheel specialist to have them widened and setup with the perfect offset to fit some 295 or 305s in the rear. I dunno about a 328i badge though. I figure badgeless so at worst they think I'm an M3 poseur or something (I've got an Mtech front bumper)
      1. dzenno@PTF's Avatar
        dzenno@PTF -
        Click here to enlarge Originally Posted by Sered Click here to enlarge
        So 3.5" flows more than dual 2.5". Did you get that math right (its pretty simple calculating areas of circles)? I'm not sure dual 3" will be so easy to fit, honestly I'd doubt there will be any significant gains of a dual 3" over a single 4" (but there might be, who knows). I'd prefer the sound of a single exhaust over a dual, just personal preference. Also easier to make stealthy (I'm looking into a 328i bumper too, I'm already de-badged)

        I hear what you're saying for the 1000whp mark, and I've heard it before. I'm just saying you're wrong in reality as there is data that speaks otherwise. There's MANY MANY Supras running around with 4" exhausts that saw significant gains over their existing 3.5" setups when stepping into the 650whp+ range.
        Single 3.5" flows less than dual 2.5". So naturally going single 4" vs single 3.5" will do better. Going dual 2.5" vs single 3.5" would see gains too Click here to enlarge

        Anyways once the kits are on we can see how exhausts play out Click here to enlarge
      1. Torgus's Avatar
        Torgus -
        Click here to enlarge Originally Posted by Sered Click here to enlarge
        Click here to enlarge

        I'm going further. Looking for stock BMW wheels of some sort to fit some R888's in the back. I'll be taking them to a wheel specialist to have them widened and setup with the perfect offset to fit some 295 or 305s in the rear.
        Epic. All you need is a way to change the sidewall markings. Oh you want to race Ferrari? $1000 says I win.
      1. Sered's Avatar
        Sered -
        Click here to enlarge Originally Posted by dzenno@ProTUNING Freaks Click here to enlarge
        Single 3.5" flows less than dual 2.5". So naturally going single 4" vs single 3.5" will do better. Going dual 2.5" vs single 3.5" would see gains too Click here to enlarge

        Anyways once the kits are on we can see how exhausts play out Click here to enlarge
        A single 3.5" flows more than a dual 2.5" in reality, you can't avoid this. On a straight pipe it flows almost exactly the same, but in the real world it does flow more (real-world exhausts have bends in them) for reasons I said originally (as did cbr335i). Assuming a well-done y-pipe of course. I've already talked with Burns Stainless about that one Click here to enlarge

        And yes, we will see Click here to enlarge
      1. LostMarine's Avatar
        LostMarine -
        Click here to enlarge Originally Posted by Sered Click here to enlarge
        I figure badgeless so at worst they think I'm an M3 poseur or something (I've got an Mtech front bumper)
        actually, PUT an m3 badge on it so you DO look like a poser.
      1. Sered's Avatar
        Sered -
        Click here to enlarge Originally Posted by LostMarine Click here to enlarge
        actually, PUT an m3 badge on it so you DO look like a poser.
        LOL.
      1. RnmEvo9's Avatar
        RnmEvo9 -
        Click here to enlarge Originally Posted by Sered Click here to enlarge
        Not from what I've seen. Maybe with a new intake manifold and headers.
        Straight from a 2008 Z06 owner on here:

        Click here to enlarge Originally Posted by Amerkin Click here to enlarge
        Compliments to the promoters and staff for a great event! I haven't had that much fun racing in quite awhile. It beats the heck out of running at Famoso, and with a lot less abuse on the vehicle. I had only three losses all day, with two not completely surprised, and one definitely. I ran the black 458 Italia with my '08 ZO6 (we are both running about 40hp over stock, me with a cold air intake and tune added 43rwhp, the Ferrari with hi-flow cats and tune the owner says worth 40+) and he won by 1/2 car. I lost to a GTR on E85, added boost, etc. by one car. The surprise was Terry Burger's 135i who pulled out a car on me just about at the top of second gear and we then stayed even on the rest of the run with him winning by a car length. I thought I would catch him in 4th where I had a distinct advantage with almost every car I ran, but not to be. I never raced a car with less power and out ran many with considerably more, thanks to light weight, aero and some old school racing savy. An event well worth the money and would definitely do it again.
        I don't see why its so hard to believe an LS7 gaining so much power from a few bolt ons.
      1. maxnix's Avatar
        maxnix -
        Nice, but one can only wonder what it makes on 91 and 93 pump octane gas with no methanol. Special fuel claims are not relevant for everyday non track experience.
      1. benzy89's Avatar
        benzy89 -
        Click here to enlarge Originally Posted by maxnix Click here to enlarge
        Nice, but one can only wonder what it makes on 91 and 93 pump octane gas with no methanol. Special fuel claims are not relevant for everyday non track experience.
        There's already data posted on the strict 91 octane results for the Vargas Stage 3s, 573 WHP / 537 WTQ. Probably won't start seeing 93 octane results until the kit gets into user's hands because 93 isn't readily available in CA
      1. ChuckD05's Avatar
        ChuckD05 -
        Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
        Straight from a 2008 Z06 owner on here:



        I don't see why its so hard to believe an LS7 gaining so much power from a few bolt ons.

        awesome post to read
      1. Sered's Avatar
        Sered -
        Click here to enlarge Originally Posted by maxnix Click here to enlarge
        Nice, but one can only wonder what it makes on 91 and 93 pump octane gas with no methanol. Special fuel claims are not relevant for everyday non track experience.
        I'd go back and read the other threads before commenting in this one.
      1. Sered's Avatar
        Sered -
        Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
        I don't see why its so hard to believe an LS7 gaining so much power from a few bolt ons.
        Nice link Click here to enlarge I guess I assumed GM had strung the motor out a bit more. Looks like 500whp is doable for that car with headers.
      1. CBR335's Avatar
        CBR335 -
        Click here to enlarge Originally Posted by RnmEvo9 Click here to enlarge
        Straight from a 2008 Z06 owner on here:



        I don't see why its so hard to believe an LS7 gaining so much power from a few bolt ons.
        LOL, I was at that Famoso event and witnessed Terry beating up on many a car with the 135i.....including me.
      1. klipseracer's Avatar
        klipseracer -
        put a 328 badge, and the non sport stock wheels with slicks lol.