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    • BMS E82 135i FFTEC N54 Single Turbo Kit Dyno Testing - 585 wheel horsepower

      Been racking up miles on the 135i and fixing little things. And finally had a chance to get to the dyno today for some baseline testing. As I've mentioned I've been VERY pleased with the FFTEC twin scroll top mount 5862 turbocharger kit. On road performance and spool is much better than any other combinations I've driven.


      Testing details:


      2008 135i Steptronic (original trans, for now)
      JB4 single turbo firmware & supporting flash
      FFTEC 5862 top mount single turbo
      BigTom intercooler, BMS OCC, BMS stat, etc
      Walbro 255 inline fuel pump mod
      Factory exhaust system (did not bother to open cutout)
      ~E30 mix for for 17psi runs. For 20psi+ runs enabled meth kit for fueling using a single CM10 nozzle.


      Notes:
      1) Was not going after any power records so left the tuning very conservative all around. At the same boost levels there is easily another 15hp in this setup with more advance. And no reason this turbo can't be cranked up to 28psi when the trans is ready.
      2) It made a lot more power than I was expecting. It's basically on pace with the 6466 at these lower boost levels only with much better spool.
      3) If the trans would shift this car would be seriously quick. I'll get to work on that ASAP.
















      Video of one of the 23psi runs:



      This article was originally published in forum thread: 135i BMS FFTEC Single Turbo Dyno Testing started by Terry@BMS View original post
      Comments 336 Comments
      1. Flinchy's Avatar
        Flinchy -
        Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
        YeS! This correct. That's why every REAL drag has a DCT. Oh wait, they don't. You guys can say what you want. You are wrong and any real drag racer worth his salt knows it. But honestly who cares. It's Friday night. You guys can fight about it all you want, facts are facts. Cheers
        so you're telling me.. if you took out the DCT (wtf ever acronym they choose, DSG, TC-SST blah blah) from the GT-R and put in a conventional auto it would be faster?

        what?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        Yep, that and DSG 8ms holy$#@! in a car that came out in 06 in all production. How fast is the DCT compared to VAG DSG?
        Honestly I bet they're all fairly close as we would need a third party to measure them all with some sort of unified standard. They're fast... damn fast.
      1. Jewber's Avatar
        Jewber -
        How much power can the MT hold?
      1. rdeterman's Avatar
        rdeterman -
        Click here to enlarge Originally Posted by Jewber Click here to enlarge
        How much power can the MT hold?
        I don't know of anyone who has issues with the transmission itself. Its the clutch that holds you back.
      1. TT-Tom's Avatar
        TT-Tom -
        Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
        I would argue that a 6MT with NLS is better than AT during roll races. At a minimum, the 6mt doesn't flatline timing Click here to enlarge

        Ive be raced two other at n54's, never gave up an inch during shifts. I'm actually quite sure I can shift faster than the 6HP.
        ije0s can still flatline with the 6mt...just not as severe but my 6at is faster, no doubt even with the flatline

        Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
        I understand you guys are new to the racing world. It's the only reason you would even consider making a MT vs AT argument when were talking strictly straight line racing. And a proper tranny means, properly working, no issues with it holding power, flatlining or any of that, It can be the factory tranny. A properly working AT will ALWAYS be faster. Take a car put the best drag racer in the world in it, have run it with an MT, pull it down, put an AT in it. Have him run it again the AT WILL be faster. That is a FACT. You cannot shift faster than an AT, sorry to burst your bubble. Now with all that said, I bought an MT for our shop car because first off all. No issues, secondly they are more fun. But in a straight line in a turbo car, not faster or quicker.
        100% true

        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        DCT > all
        Pretty much

        Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
        We aren't talking bone stock brah. 6MT with NLS and CDV delete.

        The test is pretty easy - the wotbox interface allows me to program how long to interrupt the ignition power supply for while initiating a NLS. If my shift took longer than the time delay, RPMs will shoot up vs accelerate in the next gear. I'm most comfortable with it at 125ms, but have gone as low as 75ms. I could post my Cobb logs but I don't think the time stamps have the resolution to show definitively how many ms it took.
        Do this for us then, because we are obviously all wrong, throw your car on a dyno and run from 40-150 and see how much power you lose during shifts, then compare to the dynos of a 6at doing the same thing. Then race a car in good working order running the same timing and boost that has a 6at, see who wins. I have both so i'm unbiased. I can assure you that the manual is more fun to drive and feels faster but it certainly is not.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by TT-Tom Click here to enlarge
        Do this for us then, because we are obviously all wrong, throw your car on a dyno and run from 40-150 and see how much power you lose during shifts, then compare to the dynos of a 6at doing the same thing. Then race a car in good working order running the same timing and boost that has a 6at, see who wins. I have both so i'm unbiased. I can assure you that the manual is more fun to drive and feels faster but it certainly is not.
        You know that we're talking about No Lift Shifting right? There's very minimal power loss during that transaction LOL.

        By the way, this whole conversation started by the statement

        Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
        lol the most skilled pro drivers can't keep up with an AT
        Which I replied that is not true. My dads nissan altima does not shift faster than me, that's an AT tranny no?
        @lulz_m3 and I both have logs and verifications of our switching gear timing. We're not making $#@! up, I guess I need to race @alpinedevil335 before I go single.

        PS, the only advantage the 335i AT tranny has VS the MT is the shorter gearing, which might make the car "faster" but not at top end and after I switch the gear. That's the only variable in this that can make it plausible.
      1. lamia2super's Avatar
        lamia2super -
        super human power is super fast shifting
      1. TT-Tom's Avatar
        TT-Tom -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        You know that we're talking about No Lift Shifting right? There's very minimal power loss during that transaction LOL.

        By the way, this whole conversation started by the statement



        Which I replied that is not true. My dads nissan altima does not shift faster than me, that's an AT tranny no?
        @lulz_m3 and I both have logs and verifications of our switching gear timing. We're not making $#@! up, I guess I need to race @alpinedevil335 before I go single.

        PS, the only advantage the 335i AT tranny has VS the MT is the shorter gearing, which might make the car "faster" but not at top end and after I switch the gear. That's the only variable in this that can make it plausible.
        You may be missing the point here, no matter the car if it has a turbo at least, an AT will be faster than even a NLS manual with the best driver in the world. Don't believe just look at the drag times for this car, the fastest ones, even with less power, are autos... It actually has very little to do with how fast you can shift, you may be able to beat it in $#@! speed but you will never win the power war between gears.. Like I said though do the dyno and see for yourself.
      1. mjmarovi's Avatar
        mjmarovi -
        3 pedals= manual
        2 pedals= auto
        SMG= Sequential Manual Gearbox.... it is an automated manual, not a complete automatic, and not on the same level as the 6AT and certainly not the DCT
      1. mjmarovi's Avatar
        mjmarovi -
        Click here to enlarge Originally Posted by TT-Tom Click here to enlarge
        You may be missing the point here, no matter the car if it has a turbo at least, an AT will be faster than even a NLS manual with the best driver in the world. Don't believe just look at the drag times for this car, the fastest ones, even with less power, are autos... It actually has very little to do with how fast you can shift, you may be able to beat it in $#@! speed but you will never win the power war between gears.. Like I said though do the dyno and see for yourself.
        Just give up...I've already tried explaining the difference in power loss between shifts, but apparently no power for ~130 ms or whatever is better than having some power 100% of the time...

        Maybe pointing out how the DCT shift times very from 30-200ms, yes that's right, 200ms will help. DCT's advantage over a traditional auto isn't just shift SPEED but amount of power loss between shifts, both are significant upgrades over a manual no matter the driver...this is really just a silly conversation at this point cause of two young guys with big egos thinking they can outshift an auto transmission
      1. mjmarovi's Avatar
        mjmarovi -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        You know that we're talking about No Lift Shifting right? There's very minimal power loss during that transaction LOL.

        By the way, this whole conversation started by the statement



        Which I replied that is not true. My dads nissan altima does not shift faster than me, that's an AT tranny no?
        @lulz_m3 and I both have logs and verifications of our switching gear timing. We're not making $#@! up, I guess I need to race @alpinedevil335 before I go single.

        PS, the only advantage the 335i AT tranny has VS the MT is the shorter gearing, which might make the car "faster" but not at top end and after I switch the gear. That's the only variable in this that can make it plausible.
        You're just not getting it, it's beyond shift speed, and I already stated that there are auto's out there you will be able to outshift, in the 90's almost every performance model was faster in the manual version, not the case anymore...no one can take away the enjoyment of ripping through gears in a manual, but give up on the performance edge, that's in the past
      1. TT-Tom's Avatar
        TT-Tom -
        Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
        Just give up...I've already tried explaining the difference in power loss between shifts, but apparently no power for ~130 ms or whatever is better than having some power 100% of the time...

        Maybe pointing out how the DCT shift times very from 30-200ms, yes that's right, 200ms will help. DCT's advantage over a traditional auto isn't just shift SPEED but amount of power loss between shifts, both are significant upgrades over a manual no matter the driver...this is really just a silly conversation at this point cause of two young guys with big egos thinking they can outshift an auto transmission

        Tempted to throw some money on a race but I'd be happy just to see the look on his face Click here to enlarge
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by TT-Tom Click here to enlarge
        Tempted to throw some money on a race but I'd be happy just to see the look on his face Click here to enlarge
        I have money too. I'm down to race stock turbo FBO METH w/e you want in an auto. I'll bring out my best you bring yours wherever you wanna find them. 60-160 race.

        I honestly don't doubt the auto 335 would beat me. They have shorter gears which is a big up for them to move faster. If it's a true tranny shifting rave, both diffs would need to be equal gearing.

        I'll end it here. Auto 335 may be faster than a 6mt due to gearing. I still think that people can shift faster than the auto tranny. That's what we were talking about at first. Which tranny can change gears faster, not which 335 is faster.
      1. Terry@BMS's Avatar
        Terry@BMS -
        The auto has pluses and minuses. It's better in that you hold more torque through shifts than a MT ever will be able to, and you can brake torque for a better launch from a stop. But on the N54 the AT can't rev as high so you loose out on 50-75whp of the power band up top. And the AT is less reliable at high power levels.

        IMHO, keep in mind we have both, AT FTW. Click here to enlarge
      1. mjmarovi's Avatar
        mjmarovi -
        Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
        Probably about that, but then you have a slow MT...AT's are so much quicker and hold boost through shifts
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        I have money too. I'm down to race stock turbo FBO METH w/e you want in an auto. I'll bring out my best you bring yours wherever you wanna find them. 60-160 race.

        I honestly don't doubt the auto 335 would beat me. They have shorter gears which is a big up for them to move faster. If it's a true tranny shifting rave, both diffs would need to be equal gearing.

        I'll end it here. Auto 335 may be faster than a 6mt due to gearing. I still think that people can shift faster than the auto tranny. That's what we were talking about at first. Which tranny can change gears faster, not which 335 is faster.
        Yes, please end it, maybe quoting this first post I made that apparently started it will refresh your memory. You and lulz started with the time it takes to shift rather than what's faster. Really silly to clutter up this great thread with such a nonsense claim.

        Now lets get this back on topic and move on. I think Terry is showing that this ST kit is a huge improvement over Stage 2 turbos and the car is a lot of fun without any improvements to even an AT.
      1. fastgti69's Avatar
        fastgti69 -
        I just want to have my turbo in already lol.
      1. alpinedevil335's Avatar
        alpinedevil335 -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        I guess I need to race @alpinedevil335 before I go single.
        don't threaten me with a good time, lets do this!
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by alpinedevil335 Click here to enlarge
        don't threaten me with a good time, lets do this!
        s
        Yep, we still never got to run it LMAO. $#@! how can we do it before thursday!? That's when the turbos come out.
      1. alpinedevil335's Avatar
        alpinedevil335 -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        s
        Yep, we still never got to run it LMAO. $#@! how can we do it before thursday!? That's when the turbos come out.
        You have a spot? i'm there.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by alpinedevil335 Click here to enlarge
        You have a spot? i'm there.
        I'll text you LOL, we can't get too public LMAO.