• 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. Ak335i's Avatar
        Ak335i -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        I could probably find some but too lazy at the moment. The 6466 spools much slower but makes more power with lower IATs for a given PSI. For my money though this 5862 TS setup is perfect.
        Just from the logs I saw looks like u spool around 4-4200?
        Might be Manifold design but I've been known to spool by 4200 Ish with the custom 6466
      1. Terry@BMS's Avatar
        Terry@BMS -
        It hits 15psi around 3300rpm on the street vs. around 4100rpm with our 6466. There is really no comparison. Then again the 5862 isn't going to make 640whp @ 24psi. More like 600whp. But to me its worth it. The spool is priceless especially when racing. At the runway I'd just roll in 3rd @ 3500rpm @50mph, floor it at the cones, and it would be at full target within a second or so with zero traction issues. With the 6466 it might take 2-3 seconds, then would hit too hard and spin the tires, lol.
      1. mjmarovi's Avatar
        mjmarovi -
        Click here to enlarge Originally Posted by Terry@BMS Click here to enlarge
        It hits 15psi around 3300rpm on the street vs. around 4100rpm with our 6466. There is really no comparison. Then again the 5862 isn't going to make 640whp @ 24psi. More like 600whp. But to me its worth it. The spool is priceless especially when racing. At the runway I'd just roll in 3rd @ 3500rpm @50mph, floor it at the cones, and it would be at full target within a second or so with zero traction issues. With the 6466 it might take 2-3 seconds, then would hit too hard and spin the tires, lol.

        No doubt it's a major difference just comparing two turbos all else the same, but Ak is just comparing his own logs, which from what I've seen your 5862 and his 6466 hit 20psi within 200 RPM of each other

        EDIT: Your logs on first page are on a dyno so I think that's what's skewing the difference, if you're hitting 15psi at ~3300 RPM on the street, is that like 3800 to hit 20psi or is it sooner?
      1. Sticky's Avatar
        Sticky -
        Terry is the 5858 a single scroll?

        Also, what transmission in the red E92?
        @Terry@BMS
      1. Sticky's Avatar
        Sticky -
        ^ Anyone?
      1. Dirty Dog's Avatar
        Dirty Dog -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Terry is the 5858 a single scroll?

        Also, what transmission in the red E92?
        @Terry@BMS
        6sp ZF AT
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        ^ Anyone?
        Terrys 5862 i believe is single scroll with a twin scroll manifold if i recall. Im not sure on that.

        The red e92 is regular auto. Belongs to Ando
      1. mjmarovi's Avatar
        mjmarovi -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        Terrys 5862 i believe is single scroll with a twin scroll manifold if i recall. Im not sure on that.

        The red e92 is regular auto. Belongs to Ando
        It's a TS turbo on a TS manifold. I think Ando's is single scroll
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
        It's a TS turbo on a TS manifold. I think Ando's is single scroll
        Ahh ok. I wasnt sure i though he had vband inlet on the turbo.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by mjmarovi Click here to enlarge
        It's a TS turbo on a TS manifold. I think Ando's is single scroll
        I need confirmation on whether it is single scroll or twin scroll.
      1. mjmarovi's Avatar
        mjmarovi -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        Ahh ok. I wasnt sure i though he had vband inlet on the turbo.
        Well, you can still have TS V-band, but the FFtec top mount kits are all T4.
      1. rdeterman's Avatar
        rdeterman -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I need confirmation on whether it is single scroll or twin scroll.
        Terrys 135i is FFTEC 5862 Twin Scroll Kit
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by rdeterman Click here to enlarge
        Terrys 135i is FFTEC 5862 Twin Scroll Kit
        I know I'm talking about the other one.
      1. VegasJD's Avatar
        VegasJD -
        ando's is a 5858 single scroll bottom mount kit
      1. Terry@BMS's Avatar
        Terry@BMS -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Terry is the 5858 a single scroll?

        Also, what transmission in the red E92?
        @Terry@BMS
        Yes, 5858 single scroll, steptronic trans, running 23psi, but also less timing, and probably 200# heavier.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by VegasJD Click here to enlarge
        ando's is a 5858 single scroll bottom mount kit
        Glad I guessed right Click here to enlarge

        Thanks.