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    • 650+ horsepower capable 2.5 TFSI hybrid turbo upgrade coming for the Audi 8V RS3 sedan and MKIII TT-RS from Iroz Motorsport

      Obviously the new aluminum block 2.5 TFSI I5 has hit the ground running in tuning circles. Vehicles are already in the mid 10's on the stock turbo and things are only going to improve tremendously from there with turbocharger upgrades.


      For example with this hybrid turbo from Iroz Motorsport that in development and they say good for 650 horsepower:

      Quote Originally Posted by Iroz Motorsport
      another sneak peak of the 8S and 8V FL hybrid turbos. 650hp kits with fast response thanks to a custom turbine wheel, billet HTZ aero, and ceramic ball bearing rotating assembly. Our downpipes obviously work on these as well.
      The upgrade is Xona Rotor based.

      How much will it cost? When will it be ready? What will it do in the 1/4 mile? Well, we should find all of this out shortly.


      This article was originally published in forum thread: 650+ horsepower capable 2.5 TFSI hybrid turbo upgrade coming for the Audi 8V RS3 sedan and MKIII TT-RS from Iroz Motorsport started by Sticky View original post
      Comments 14 Comments
      1. Stevenh's Avatar
        Stevenh -
        This is what I really want to see. Should be fun to see how deep into the 9s she'll go with basic mods.
      1. Bowser330's Avatar
        Bowser330 -
        Click here to enlarge Originally Posted by Stevenh Click here to enlarge
        This is what I really want to see. Should be fun to see how deep into the 9s she'll go with basic mods.
        by basic mods to you mean anything besides opening the engine?

        That's actually a pretty good metric...who has the strongest stock engine internals? Who's leaving the most on the table for tuners to extract?

        A 9 second RS3 with stock internals would be pretty damn amazing
      1. Stevenh's Avatar
        Stevenh -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        by basic mods to you mean anything besides opening the engine?

        That's actually a pretty good metric...who has the strongest stock engine internals? Who's leaving the most on the table for tuners to extract?

        A 9 second RS3 with stock internals would be pretty damn amazing
        I used to consider it bolt one (tune, intake, exhaust, etc... Basically maxing out stock turbo), but these stock frame turbo upgrades have gotten so reliable and idiot proof that I throw them in the same category now.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        A 9 second RS3 with stock internals would be pretty damn amazing
        It pretty much has to happen.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Stevenh Click here to enlarge
        I used to consider it bolt one (tune, intake, exhaust, etc... Basically maxing out stock turbo), but these stock frame turbo upgrades have gotten so reliable and idiot proof that I throw them in the same category now.
        Bolt on is still bolt on with factory turbo to me.
      1. Bowser330's Avatar
        Bowser330 -
        Click here to enlarge Originally Posted by Stevenh Click here to enlarge
        I used to consider it bolt one (tune, intake, exhaust, etc... Basically maxing out stock turbo), but these stock frame turbo upgrades have gotten so reliable and idiot proof that I throw them in the same category now.
        I am leaning that way as well...

        #1 they are being offered more and more as more turbo engines are released
        #2 like you said, due to the stock fitment, they can be installed by most tuner shops or even by a competent owner

        The 991.2 turbos definitely look like turbos that could be DIYed with the convenient under mount access
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        I am leaning that way as well...

        #1 they are being offered more and more as more turbo engines are released
        #2 like you said, due to the stock fitment, they can be installed by most tuner shops or even by a competent owner

        The 991.2 turbos definitely look like turbos that could be DIYed with the convenient under mount access
        The definition of bolt on will never change. A turbo upgrade is a turbo upgrade, period.

        The 991.2 turbos are super easy to reach Click here to enlarge
      1. Bowser330's Avatar
        Bowser330 -
        One thing to keep in mind for the RS3/TTRS is the engine's ability to rev out to 8000+ rpm

        Torque is what bends rods, so if the stock rods can safely hold 500wtq till 8000rpm that translates to 760whp

        Remember what made the supercharged E92 M3 such a roll-race monster was:
        (1) its ability to rev it's peak power out to 8000+rpm thus creating increased area under the power curve
        (2) Quick shifting DCT
        (3) 3,500lb weight

        Now combine the above advantages with AWD....YIKES!!!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Bowser330 Click here to enlarge
        Remember what made the supercharged E92 M3 such a roll-race monster was:
        Wow, I never thought I'd see the day people would admit to this.
      1. Stevenh's Avatar
        Stevenh -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        The definition of bolt on will never change. A turbo upgrade is a turbo upgrade, period.

        The 991.2 turbos are super easy to reach Click here to enlarge
        Fair, but I look at it more being about simple install... Stock manifold oil lines, water lines, fitment, etc make them more reliable and often a simple jackstand install.
        Visually, you can still getting away with it being a stock car if you're tune and hybrid turbo only, as well. Of course it's a turbo upgrade, but I consider it basic work on most cars.
      1. Ensoniq's Avatar
        Ensoniq -
        How long will this hold up at 650 hp?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Stevenh Click here to enlarge
        Fair, but I look at it more being about simple install... Stock manifold oil lines, water lines, fitment, etc make them more reliable and often a simple jackstand install.
        Visually, you can still getting away with it being a stock car if you're tune and hybrid turbo only, as well. Of course it's a turbo upgrade, but I consider it basic work on most cars.
        I consider it basic work too and reliable for the most part if not getting greedy.

        Just beyond bolt on. More BPU++++++ or whatever the Supra guys used to cal it.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by Ensoniq Click here to enlarge
        How long will this hold up at 650 hp?
        We're going to find out.
      1. Stevenh's Avatar
        Stevenh -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I consider it basic work too and reliable for the most part if not getting greedy.

        Just beyond bolt on. More BPU++++++ or whatever the Supra guys used to cal it.
        Ha, exactly. I don't think hybrids were a thing until way late in that game. Now, they cost like $1,000 more than a cat back on a single turbo car.