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  1. #1
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    What do a pair of Garrett GTX 2867's get you on a B5 S4 2.7 V6? 714 horsepower at all four wheels

    Some eye popping numbers here from a B5 S4 running twin Garrett GTX 2867 .63AR turbochargers at ~33 psi. The dyno numbers from the Gintani Dyno Dynamics dynamometer which can record output at all four wheels. The owner says he thinks he has about maxed out the turbochargers and has tried roughly 15 different sets of turbos settling on the GTX 2867. In additoin to the turbochargers he has aftermarket cams and solid lifters which explains the 8000+ rpm redline.

    Click here to enlarge

    The 714 wheel horsepower number is with meth injection and is the high boost figure. It certainly does appear to lag quite a bit not spooling until the 5500 rpm range. So lag, lag, lag, and then hold on for dear life.

    The pump gas + meth figure is 615 wheel horsepower at 27 psi. This is definitely a strong B5 S4.

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    Awesome numbers! Thats 2.7 seems to be a pretty inefficient engine if he is maxing 2867's at 714, we made 725 with 2863's and we felt they had more in them. Pretty sure a set of 2867's should net you 800WHP+ on the N54 if the engine can handle it. Very surprised they are spooling so late, he must have really big primaries on it.
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    N54 Stock Frame (100% E85) World Record: 699WHP / 714WTQ
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    N54 (ACN 91 octane only) World Record: 585WHP / 537WTQ
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    I had a B5 s4 and was unimpressed with it. Basically it was a FBO car... this on the other hand looks like a lot of fun!
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    FBO's. Spec S2+. E85.

  4. #4
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    Click here to enlarge Originally Posted by VargasTurboTech Click here to enlarge
    Awesome numbers! Thats 2.7 seems to be a pretty inefficient engine if he is maxing 2867's at 714, we made 725 with 2863's and we felt they had more in them. Pretty sure a set of 2867's should net you 800WHP+ on the N54 if the engine can handle it. Very surprised they are spooling so late, he must have really big primaries on it.
    The 2.7 can use a bit of headwork to open it up. Also an increase in displacement.
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    really take so long to spooling the 2867?
    hopefully this does not happen in n54....

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