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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. jzeee037's Avatar
        jzeee037 -
        Yeah but I'm over a year in so if it fails now I would not be disappointed. I beat on it hard and never a hiccup. The only thing I can say was I expected more stall out of it and can only hold about 3k. Was hoping for more like 3500 but it works pretty well. Plan on going to a top mount single or stage 3 vargas in the next couple of months so ill see how it holds up to around 650hp which is my goal for this car. Just need to finish my other projects before I start on the e90. Yeah I know it was expensive but not having trans. malfunction every time I go wot is worth it to me. I drive the car hard just like everything else I own and the turbos and trans.have held up which was a surprise. I still wonder which will fail first the vargas turbos or the trans. I know its off topic but these turbos are pretty durable. Guess it was worth it to upgrade thrust parts.
      1. jzeee037's Avatar
        jzeee037 -
        If I could get a new m5 on a lease I would consider it. That's kind of disheartening that all you've done is a tune and already surpassed my fbo e90. I hope the reliability will be better. All the small issues I've had from the hpfp to Wastegate rattle to electrical issues like the fuse panel failure are a beating and that's just a couple of the issues I've had. Great time btw Terry.
      1. Ak335i's Avatar
        Ak335i -
        Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
        Because of lag, you also make less torque down low where the HPFP is known to struggle.
        lag? i hit full spool at 4400 to 4500 rpm just like any other big ST ?
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by jzeee037 Click here to enlarge
        Yeah but I'm over a year in so if it fails now I would not be disappointed. I beat on it hard and never a hiccup. The only thing I can say was I expected more stall out of it and can only hold about 3k. Was hoping for more like 3500 but it works pretty well. Plan on going to a top mount single or stage 3 vargas in the next couple of months so ill see how it holds up to around 650hp which is my goal for this car. Just need to finish my other projects before I start on the e90. Yeah I know it was expensive but not having trans. malfunction every time I go wot is worth it to me. I drive the car hard just like everything else I own and the turbos and trans.have held up which was a surprise. I still wonder which will fail first the vargas turbos or the trans. I know its off topic but these turbos are pretty durable. Guess it was worth it to upgrade thrust parts.
        How is launching in 2nd gear with it? The key with the larger single is a higher stall speed to get out of the hole in 2nd I think.
      1. lulz_m3's Avatar
        lulz_m3 -
        Click here to enlarge Originally Posted by Ak335i Click here to enlarge
        lag? i hit full spool at 4400 to 4500 rpm just like any other big ST ?
        Your setup is very laggy compared to Terry's which is what @V8Bait was referencing. Massive torque down low (like stock frame upgrades) max out the fuel system because they are making big torque before the HPFP has a chance to get up to speed. Terry's ST is getting fairly decent boost by 3.5krpm, so he too will have issues maintaining such a high fuel demand because the lower RPM's and big torque. Now start looking at things at 4.5k+ and the story begins to change because you have shifted the torque curve to the right so much. It's just something to consider for those who are trying to understand where the fuel demands begin to cause a problem.
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by rdeterman Click here to enlarge
        in a few years ill probably own one of these new M5's. But at 100k new they are a bit out of my budget. I would assume in 3-4yrs these cars will be ~40k-50k used. Then they will be a great bang for the buck car! Tune/DP's/E85 (maybe) and running 10's all day long. That's what im talkin about!
        Yeah the depreciation on them is awful. Give it another year or two and I can see them in the 50s. It's just a monster of a car though. As more people get them and start racing them you'll see. Easily 10 second potential with slicks and a tune.
      1. jzeee037's Avatar
        jzeee037 -
        I think its a lot better than stock. Still think it could use more stall. I believe if you talk to Pat they can build the converter to what you want.Haven't been to the track with it in a while but I have a nice piece of road out in the country that I do pulls on and its definitely a stronger hit out of the hole. Even with dr's on the street traction is hard to come by so until it dries up and I get to a properly prepped strip I don't know how much better. Problem is last time I went to the track I didn't have a lsd so that plays in as well.
      1. VargasTurboTech's Avatar
        VargasTurboTech -
        Click here to enlarge Originally Posted by bobS Click here to enlarge
        I thought level 10 was proven to not really be a legit upgrade? A couple of people have used them and yet we are still searching for a legit trans rebuild option.
        Not proven at all to work for that price, even the guy working with them who was unhappy and left that supposedly was their "BMW" guy was doing upgrades for Vishnu ST cars and they were failing in 6-7 pulls. I would not put that kind of money down for an upgrade that is not proven. Maybe it was 2 grand or something, but not 7.
      1. jzeee037's Avatar
        jzeee037 -
        Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
        Not proven at all to work for that price, even the guy working with them who was unhappy and left that supposedly was their "BMW" guy was doing upgrades for Vishnu ST cars and they were failing in 6-7 pulls. I would not put that kind of money down for an upgrade that is not proven. Maybe it was 2 grand or something, but not 7.
        I bought it because it was the only option and my original was failing on stock turbos. Maybe my power level is not enough to hurt it I don't know yet but will find out soon enough. I have no complaints but I'm only one guy. @enrita has it also and haven't heard of his failing. I thought the torque of stock frame turbos damaged it more than high hp? Maybe I'm wrong but that's the impression I was under. Oh and 7k is too much I agree.
      1. VargasTurboTech's Avatar
        VargasTurboTech -
        Click here to enlarge Originally Posted by jzeee037 Click here to enlarge
        I bought it because it was the only option and my original was failing on stock turbos. Maybe my power level is not enough to hurt it I don't know yet but will find out soon enough. I have no complaints but I'm only one guy. @enrita has it also and haven't heard of his failing. I thought the torque of stock frame turbos damaged it more than high hp? Maybe I'm wrong but that's the impression I was under. Oh and 7k is too much I agree.
        For stock frames its fine, but even without it you can run stock frame power for quite a while. They promised the ST guy it would hold 700 WTQ he was making around 700 WHP and a little over 600WTQ, it did not hold up at all. I think its just a combo of hard parts and the inability to really change the TCU.
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
        Not proven at all to work for that price, even the guy working with them who was unhappy and left that supposedly was their "BMW" guy was doing upgrades for Vishnu ST cars and they were failing in 6-7 pulls. I would not put that kind of money down for an upgrade that is not proven. Maybe it was 2 grand or something, but not 7.
        I think that was Prem and his 512 motorsports? Trans. Although Level10 has a shaky reputation seems like the only viable option currently. Let's just hope they stand behind their work...
      1. jzeee037's Avatar
        jzeee037 -
        Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
        For stock frames its fine, but even without it you can run stock frame power for quite a while. They promised the ST guy it would hold 700 WTQ he was making around 700 WHP and a little over 600WTQ, it did not hold up at all. I think its just a combo of hard parts and the inability to really change the TCU.
        Gotcha Thanks for the feedback. I'm wondering how much the alpina flash has helped as well. Would be nice if we could change TCU settings but I've been waiting for this for a long time and not sure if it will ever happen.
      1. 135pats's Avatar
        135pats -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        I think that was Prem and his 512 motorsports? Trans. Although Level10 has a shaky reputation seems like the only viable option currently. Let's just hope they stand behind their work...
        As I understood it, the fundamental issue was the TCU and mechatronics. You can swap in whatever hardware you’d like and the TCU simply recalibrates line pressure to what it “wants” to see, negating the $7K hardware you just put in the car. So it fails even if the hardware is theoretically up to the task. Yes it was Prem whose build failed more or less instantly. Not positive but that was my understanding of the problem. In fairness the 6AT Step is a pretty tough box with the Alpina flash, it’ll hold maxed out hybrid twin torque which down low is pretty strong and abrupt.
      1. VargasTurboTech's Avatar
        VargasTurboTech -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        I think that was Prem and his 512 motorsports? Trans. Although Level10 has a shaky reputation seems like the only viable option currently. Let's just hope they stand behind their work...
        Yup, it was. I think they should. Honestly that was a year ago, maybe they have come a long way since then? People are patiently waiting for that upgrade.
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by 135pats Click here to enlarge
        As I understood it, the fundamental issue was the TCU and mechatronics. You can swap in whatever hardware you’d like and the TCU simply recalibrates line pressure to what it “wants” to see, negating the $7K hardware you just put in the car. So it fails even if the hardware is theoretically up to the task. Yes it was Prem whose build failed more or less instantly. Not positive but that was my understanding of the problem. In fairness the 6AT Step is a pretty tough box with the Alpina flash, it’ll hold maxed out hybrid twin torque which down low is pretty strong and abrupt.
        We max out the "torque" the transmission sees on the flash side these days. So it's all internal physical limitations. At least as far as I know.
      1. bobS's Avatar
        bobS -
        I think the real issues is both the hardware and software working together..... If the TCU doesn't "know" there is new hardware, it wll shift based on OEM calibrations and eventually wear out the hardware (imo). I don't have actual proof of this... but alpina wouldn't have created a updated flash if it wasn't needed...and they only did it for higher hp/tq stockers
      1. jzeee037's Avatar
        jzeee037 -
        Click here to enlarge Originally Posted by 135pats Click here to enlarge
        As I understood it, the fundamental issue was the TCU and mechatronics. You can swap in whatever hardware you’d like and the TCU simply recalibrates line pressure to what it “wants” to see, negating the $7K hardware you just put in the car. So it fails even if the hardware is theoretically up to the task. Yes it was Prem whose build failed more or less instantly. Not positive but that was my understanding of the problem. In fairness the 6AT Step is a pretty tough box with the Alpina flash, it’ll hold maxed out hybrid twin torque which down low is pretty strong and abrupt.
        I agree it is pretty stout but we are asking it to hold 200+ more hp and torque than it was designed to hold. I'm surprised there aren't more failures out there with as many hybrid turbos and aggressive tunes we run. Maybe some folks keep it dialed back but that's no fun for me. Lol
      1. 135idct's Avatar
        135idct -
        anyone tried external trans cooler? does it help?
      1. BavarianBullet's Avatar
        BavarianBullet -
        Click here to enlarge Originally Posted by bobS Click here to enlarge
        I think the real issues is both the hardware and software working together..... If the TCU doesn't "know" there is new hardware, it wll shift based on OEM calibrations and eventually wear out the hardware (imo). I don't have actual proof of this... but alpina wouldn't have created a updated flash if it wasn't needed...and they only did it for higher hp/tq stockers
        Time to kickstarter a TCU hack project.
      1. mjmarovi's Avatar
        mjmarovi -
        Click here to enlarge Originally Posted by 135idct Click here to enlarge
        anyone tried external trans cooler? does it help?
        I will be running one with Dash-10 lines plus alpina flash on my ST setup, so we'll see what happens. I'm not sure if it was all the transmission, but a couple times when I had just stock turbos my trans did decide to not shift at the top end. I read up on it and heard the JB4 can do that in rare instances, but not really sure. @Terry@BMS is that at all possible? It came up under google search but it seemed to be primarily on the DCT's and fixed now?

        Also, Terry, with the alpina flash and backend, what can you get the 6AT to redline at now? Is it 7300rpm?