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    • Turbo R8 coming in 2018 - Audi tweaking the EA839 2.9 turbo V6 to 500+ horsepower for entry level R8

      A tuner friendly R8? Awesome news! As expected Audi will take the new 2.9 liter EA389 engine from the Audi RS4 and RS5 and place it in the R8 chassis. Audi is expected to increase output to over 500 horsepower for the R8.


      This likely means a turbocharger change. That also likely means this turbo change can be retrofitted onto the B9 RS4 and B9 RS5.

      Furthermore, the Porsche Panamera 4S also utilizes the RS4/RS5 engine. Additionally, the next generation Audi RS Q5 is also expected to utilize this EA839 engine.

      Tuners must be salivating at the potential here with so many models sharing this motor.

      Obviously the V10 R8 models will be the performance champions in the aftermarket with the various twin turbo examples but the base R8 with a tune may give the stock V10 a run for its money for a fraction of the cost.


      This article was originally published in forum thread: Turbo R8 coming in 2018 - Audi tweaking the EA839 2.9 turbo V6 to 500+ horsepower for entry level R8 started by Sticky View original post
      Comments 4 Comments
      1. SVP03's Avatar
        SVP03 -
        Or the GT with 640 hp
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by SVP03 Click here to enlarge
        Or the GT with 640 hp
        This will be much cheaper.

        A RWD R8 with this motor might be interesting and light...
      1. Alpina_B3_Lux's Avatar
        Alpina_B3_Lux -
        I believe it is highly unlikely that the R8 will have around or even more than 500hp.

        Why?

        First of all, the Autocar article on which this is based is only a slightly updated version of an article dated September 2016. They and other magazines do that frequently, recycling previously written stuff to save them having to rewrite it entirely. At the time of the older version, neither the Panamera with the same engine nor the RS4/RS5 had been released yet, and therefore their power output was uncertain. That is why you can find speculation in the more recent article on the power output of that engine - which nowadays is obsolete, because we know it's 450hp. A case of bad editing, simply put.

        Aside from this irrelevant year-old speculation, it is also unlikely due to the model hierarchy in the R8 lineup. A turbocharged model with 500hp would seriously cannibalize the V10 models, as even without a tune the performance would be very close. Audi would be stupid to do that. With 450hp the base model will have some safety margin to the V10 models, enough to justify the significantly higher price of the natural aspirated models.

        In addition, significantly modifying the existing V6 engine is not economical for such a low volume model as the R8. It takes huge amounts of money to develop and obtain the necessary approvals for a different engine, even if it is largely based on an existing one. There's no reason at all for Audi to do that, when the engine as it is slots in perfectly below the V10 model as it is.

        Lastly, Audi has done the same thing before, which is simply reusing an existing engine - the previous R8 V8 engine was identical to the previous RS4/5 engine. Granted, nowadays with turbocharged engines it is easier to differentiate with a bit more boost (and Audi may do that, adding 10-15 hp just to be more powerful on paper), and I do believe that at some point we will see higher outputs from the V6 biturbo engine, such as in an RS5 Plus. But that will be some years down the line, I believe.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Alpina_B3_Lux Click here to enlarge
        Lastly, Audi has done the same thing before, which is simply reusing an existing engine - the previous R8 V8 engine was identical to the previous RS4/5 engine.
        It was not. Dual throttle bodies plus dry sump. Close but not identical.

        With these boosted motors they can offer more power with just software alone.

        We'll see.