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    • APR begins B9 Audi RS4/RS5 2.9 EA839 twin turbo V6 tuning development - 3d scanning turbos, manifolds, etc.

      This is pretty impressive when you take into account how much work it takes to produce upgrades for modern German vehicles. Well, not everyone has this kind of scanning hardware or engineering development and this is what sets APR apart.


      The EA839 2.9 V6 ECU is still giving tuners trouble but that is not stopping APR from mapping out the motor, turbos, and exhaust pieces to get ready for their usual upgrades.

      You can expect intercoolers, downpipes, turbos, tunes, exhaust, and the full gamut of upgrades.

      It will be exciting to see what this platform brings to the table but it likely will always be hiding in the shadows of its 2.5 TFSI sibling.


      This article was originally published in forum thread: APR begins B9 Audi RS4/RS5 2.9 EA839 twin turbo V6 tuning development - 3d scanning turbos, manifolds, etc. started by Sticky View original post
      Comments 5 Comments
      1. UkuRiSh's Avatar
        UkuRiSh -
        Why takes so long Click here to enlarge
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by UkuRiSh Click here to enlarge
        Why takes so long Click here to enlarge
        ECU my friend...
      1. Arin@APR's Avatar
        Arin@APR -
        Click here to enlarge

        Data is important! Our #RS5 development car has turbo speed sensors on each compressor cover, exhaust back pressure (EGP) both pre and post turbine on each turbo and likewise pre and post exhaust gas temperature (EGT) sensors on both turbos. On the engine and cooling system we’ve also added a whole host of temperature and pressure sensors as well. All of this data aids in our development so we can feel confident the powerful changes we’ve made come without the risks associated with guesswork. #goapr #b9RS5 #B9RS4 #29tfsi
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Arin@APR Click here to enlarge
        Data is important! Our #RS5 development car has turbo speed sensors on each compressor cover, exhaust back pressure (EGP) both pre and post turbine on each turbo and likewise pre and post exhaust gas temperature (EGT) sensors on both turbos. On the engine and cooling system we’ve also added a whole host of temperature and pressure sensors as well. All of this data aids in our development so we can feel confident the powerful changes we’ve made come without the risks associated with guesswork.
        Hell yes! Good $#@! right there!!!
      1. Payam@BMS's Avatar
        Payam@BMS -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Hell yes! Good $#@! right there!!!
        Can't argue with solid data right?