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  1. #1
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    Agency Power Porsche Panamera Turbo Carbon Fiber three inch Y-pipe intake dyno results

    Here are dyno results on a Mustang dyno of the Agency Power carbon fiber y-pipe intake for the Porsche Panamera Turbo. The stock plastic piping is 78mm at the throttle body inlet but goes down to a much more restrictive 51mm diameter at the y-split. This is a significant point of restriction in the stock intake system. The Agency Power carbon y-pipe features a three inch pipe diameter all the way to the factory end piece connection to the intercoolers.

    Peak horsepower increases on an all wheel drive Mustang dyno from 388 at the wheels to 414 to the wheels for a gain of 26 all wheel horsepower. There are gains through the entire rev range. It would be nice to see an independent dyno to confirm these numbers not just from someone who sells this part. If the gains are accurate, this part is definitely worth the $1500.

    Pictures and dyno graph below.

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  2. #2
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    When compared to the shape of the stock intake piping this is a vast improvement in reducing turbulence at the Y. I can believe the gains, although I agree another independent dyno would be nice to verify.

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    Wow that stock graph shows how bad the motor falls on it face the last 1K rpm of its powerband. It doesnt even rev high to begin with and they still cant get power to hold until ~6500 rpm -__- Turbo motors suck !!! On another note i know the f10 is a pig and M's should be N/A race engines but looking at dyno graphs of the s63tu they did a great job with the torque curve for a turbo engine and a relatively high redline of 7,000+ rpm.

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    Just saw the heat soak s63tu thread .. I digress back to my original statement Turbo Motors SUCK !!!

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    Click here to enlarge Originally Posted by ezec63 Click here to enlarge
    Just saw the heat soak s63tu thread .. I digress back to my original statement Turbo Motors SUCK !!!
    LOL

  6. #6
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    I think the head design plays a huge role, even with turbo motors. The volumetric efficiency needs to remain high at all rpms to allows the motor to breath properly. 18psi @ 80% VE is not the same as 18 psi at 95% VE. I think some manufacturers are tuning the heads to have great flow in the mid range, and not focusing at all at the top of the rpm range. This has been shown with the N54 head and the port work done. Huge gains were seen with some porting, especially at the higher volumes. Lets face it, the Panamera is a privileged kid hauler/grocery getter. This is not a car designed for a racetrack.

    The turbocharger is another area where the design has been optimized for mid range power and fuel efficiency, not for keeping the pressure ratio up while still delivering the air flow needed to keep a flat torque curve

    Heat soak is yet another area where the design has not been optimized to deal with sustained high output driving. It is designed to fit under the hood, most likely driven by the looks of the car, not it's function.

    So it is not that all turbo motors suck. It's that vehicles optimized for commuting will not be as powerful deep into the rpm range as vehicles optimized for a racetrack.
    Eppur si muove.

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