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  • GIAC pushing the K04 2.0 TSI further, their "Extreme" file/tune hits just under 1.9 BAR (27.5 psi)

    The 2.0 TSI responds well to tunes, this is common knowledge. GIAC is intent on pushing a K04 turbo upgraded 2.0 TSI even further with their new "Extreme" K04 file that they are working on. This teaser video below shows a GTI equipped with the new aggressive K04 tune on the dyno. So what are the numbers? Unfortunately, we get no dyno numbers which is disappointing. What we are provided though is a reading of the boost gauge.


    It hits a peak of just under 1.9 BAR which is 27.5 psi. That certainly is a lot of boost. So what does this tune cost? Is MS109 race gas required? What does it dyno over the previous K04 tune? Tons of questions for GIAC.

    This article was originally published in forum thread: GIAC pushing the K04 2.0 TSI further, their "Extreme" file/tune hits just under 1.9 BAR (27.5 psi) started by Sticky View original post
    Comments 28 Comments
    1. chrisisnapping's Avatar
      chrisisnapping -
      Click here to enlarge Originally Posted by BoostAddict Click here to enlarge
      Interesting. I agree it's probably not worth it to push that little guy so hard. It probably makes a ton of torque though lol
      Believe they hit 395wtq with meth and 104oct. Also trapped 115-117 on street tires.

      Click here to enlarge Originally Posted by Sticky Click here to enlarge
      They aren't vendors here unfortunately.
      My bad. Thought GIAC was
    1. Sticky's Avatar
      Sticky -
      Click here to enlarge Originally Posted by chrisisnapping Click here to enlarge
      My bad. Thought GIAC was
      I'm sure they will be relatively soon.
    1. Thomas@GIAC's Avatar
      Thomas@GIAC -
      The extreme file made 35 wheel horsepower and 87 wheel torque more than our current HO Race file (already the K04 quarter mile record holder). 395 wheel torque on our Mustang dyno, a stock GTI will baseline around 175 wheel on this dyno. I drove the car at the strip and the power was unusable on street tires (Hankook RS3).

      I was forced to roll out from idle and feather the throttle through fourth gear, but even so the car consistently trapped 115-117 mph. While this power is way too much for a FWD car on street tires, we're going to throw some street radials on and see what it can do.

      In other news, we also just captured the overall TSI quarter mile record with a 11.434 at 130.66 mph (GT3071 turbo). Full writeup to come tomorrow.
    1. Sticky's Avatar
      Sticky -
      Click here to enlarge Originally Posted by Thomas@GIAC Click here to enlarge
      In other news, we also just captured the overall TSI quarter mile record with a 11.434 at 130.66 mph (GT3071 turbo). Full writeup to come tomorrow.
      Congratulations looking forward to seeing this.
    1. Sered's Avatar
      Sered -
      Click here to enlarge Originally Posted by E90SoFlo Click here to enlarge
      n54 is already their.
      Yeah, like last year lol
    1. VargasTurboTech's Avatar
      VargasTurboTech -
      We work on a lot of K04's I am upgrading a bunch right now for the Ford Ecoboost stuff and having custom wheels made. Honestly they are small turbos, I have not done much experimenting but 30 psi on a stock K04 compressor wheel upgraded or not seems like a pretty big stretch, I would assume its way past its efficiency island. We are having special billet wheels made with a much better efficiency island and still would not push them to 30 psi. So I cant say for sure, but 30 psi for the sake of 30 psi doesn't make a lot of sense to me
    1. fastgti69's Avatar
      fastgti69 -
      Click here to enlarge Originally Posted by Thomas@GIAC Click here to enlarge
      In other news, we also just captured the overall TSI quarter mile record with a 11.434 at 130.66 mph (GT3071 turbo). Full writeup to come tomorrow.
      Click here to enlarge Originally Posted by Sticky Click here to enlarge
      Congratulations looking forward to seeing this.
      Yep, I was gonna tell you about it Sticky but I guess he got to it before me LOL. I believe that is Sammy's car, he was using MS109 @ 30psi on the 3071.

      Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
      We work on a lot of K04's I am upgrading a bunch right now for the Ford Ecoboost stuff and having custom wheels made. Honestly they are small turbos, I have not done much experimenting but 30 psi on a stock K04 compressor wheel upgraded or not seems like a pretty big stretch, I would assume its way past its efficiency island. We are having special billet wheels made with a much better efficiency island and still would not push them to 30 psi. So I cant say for sure, but 30 psi for the sake of 30 psi doesn't make a lot of sense to me
      Yep, small turbo for sure.
    1. chrisisnapping's Avatar
      chrisisnapping -
      Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
      We work on a lot of K04's I am upgrading a bunch right now for the Ford Ecoboost stuff and having custom wheels made. Honestly they are small turbos, I have not done much experimenting but 30 psi on a stock K04 compressor wheel upgraded or not seems like a pretty big stretch, I would assume its way past its efficiency island. We are having special billet wheels made with a much better efficiency island and still would not push them to 30 psi. So I cant say for sure, but 30 psi for the sake of 30 psi doesn't make a lot of sense to me
      Are their manifolds cast into the turbo? Ours are and the manifold is a HUGE choke point. Would love to have a decent hybrid k04 with a good flowing manifold.