Board: Porsche - 911 - 996 Language: English Region: Worldwide Share/Save/Bookmark Close

Forum - Thread

    MY04 GT3 Dyno day - Stock configuration

    Just got back from AWE Tuning in Willow Grove, PA after 3 pulls on the Mustang Dynometer:

    RWHP: 348.4 @ 7250 rpm
    Est. Fywheel HP based on 1.15 conversion factor: 400.66

    RWTorque: 262.4 @ 5250 rpm
    Est. Flywheel Torque: based on 1.15 factor: 301.76

    I will post the graph soon. Very Flat torque curve throughout the rpm range.

    This was based on completely stock GT3 configuration.

    Here's a link to the video of the run provided by AWE in the hall of fame... Thanks Todd and Mike!!!

    Can't wait for the bonus HP when the Europipe arrives!!! Man, my car is sssstrrrronggg!!!

    Re: MY04 GT3 Dyno day - Stock configuration


    Great numbers, your engine must be at the upper end of hp range! Be very interesting to see the graph.

    Is your Cayenne S just too boring to drive now? I got a loaner when my 4S was in the shop and I was impressed with the handling/engine (for an SUV.) It wanted to be driven hard on the twisties.

    'Course I am just an old guy with an M96 "lump" 996 and even a tip...

    Re: MY04 GT3 Dyno day - Stock configuration

    that sounds pretty similar to my SC 996 (click the image in the link below to make it bigger):

    i'd also argue for a larger power train loss than you are calculating since my stock 996 showed a 17.3 and 15.5% hp and lb respectively power train loss on the same dyno that produced the 367 and 291 post SC @ wheel numbers.

    while this is the earlier gen GT3, this is interesting nonetheless (the reason for the lower hp than the link above is that this is a 3rd gear pull whereas the above is 4th):

    Re: MY04 GT3 Dyno day - Stock configuration

    The pull was a fourth gear is a graph using an 03 996TT as a baseline compare...interesting

    Re: MY04 GT3 Dyno day - Stock configuration

    Hi rockitman

    How many miles you have on your GT3?

    regards bruno

    Re: MY04 GT3 Dyno day - Stock configuration

    Hi rockitman

    How many miles you have on your GT3?

    regards bruno

    Hello Bruno,

    The GT3 had 1100 miles at the time of dyno. Just broken in. The Europipe is in Santa's sleigh to be dropped off 12/26, so it looks like I will have a weekend project to look forward to. Happy Holidays...

    Re: MY04 GT3 Dyno day - Stock configuration

    Is your Cayenne S just too boring to drive now?

    Hello Jim:

    The cayenne is my daily beater and I love it, especially now in the winter...It gets me to the slopes safe and secure during big storms for those powder days I like so much for skiing. Sadly, the GT3 does'nt get much action this time of year...

    Re: MY04 GT3 Dyno day - Stock configuration

    Well I suppose if you have to have a daily beater, might as well be the Cayenne...

    Re: MY04 GT3 Dyno day - Stock configuration

    Not like it matters, but I just wanted to point something out. It is not as accurate to multiply the horsepower at the wheels by 1.15 to get the flywheel number, provided that you believe the horsepower loss is 15%. You can think of the engine as producing x hp, and loses a certain percentage of its horsepower, such that the horsepower at wheels is (1-losspercentage)*flywheelhp = wheelhp. Applying a 1.15 factor to the rear wheel numbers implies a loss of 13.04%. Just wanted to clarify that.

    If the loss was actually 15%, the flywheel number would be even higher.

    If you look at the 355 number from the turbo, and apply the factor (i.e., 355/(1-.15)), the result is about 417hp, which is very close the actual number. The implied loss assuming ther 415 number is 14.46%. If you assume this number is the same in the GT3, then the implied flywheel number based off your dyno results is about 407hp.

    Re: MY04 GT3 Dyno day - Stock configuration


    I agree with your numbers,

    348 rwhp that Rockitman made is 85% of a number
    (100% being Total flywheel HP)

    You get 348 divided by .85 and it gives you 409. at the flywheel.

    To cross check your numbers get 409 HP and multiply by .85% and you get 348 rwhp at 15% loss.

    just showing the way i look at rwhp #'s.

    Rockitman i think you made some HP today.

    Re: MY04 GT3 Dyno day - Stock configuration

    Look forward to seeing the numbers on your GT3 right after you put the Europipe on it



    Board Subject Last post Rating Views Replies
    Porsche Sticky SUN'S LAST RUN TO WILSON, WY - 991 C2S CAB LIFE, END OF AN ERA 2/14/19 1:26 AM
    330865 2045
    Porsche Sticky The moment I've been waiting for... 2/16/19 2:13 AM
    217679 1114
    Porsche Sticky OFFICIAL: 991.2 GT3 RS (2018) 2/15/19 11:05 AM
    145486 2579
    Porsche Sticky OFFICIAL: The new Porsche 992 – a design icon and high-tech sports car 2/17/19 1:53 AM
    60147 796
    Porsche Sticky Paint protection film 2/16/19 9:52 AM
    16131 148
    Porsche Sticky Child seats in a 991 11/29/18 3:43 PM
    14642 35
    Porsche Sticky OFFICIAL: 992 Carrera Cabriolet 2/16/19 3:33 PM
    9892 126
    Porsche Sticky Welcome to Rennteam: Cars and Coffee... (photos) 2/16/19 10:23 PM
    Boxster Coupe GTS
    2953 59
    Porsche OFFICIAL: 991 Turbo and Turbo S 1/4/19 7:02 PM
    486771 4255
    Porsche OFFICIAL: New 991.2 GT3 (2017) 1/29/19 10:07 PM
    421759 5220
    Porsche 992 (Next 911 generation 2019/2020) Thread Closed 11/29/18 11:38 AM
    317036 3195
    Porsche OFFICIAL: 911 R (2016) 12/31/18 2:19 AM
    286517 2598
    Porsche Cayman GT4 2/14/19 7:29 PM
    280282 2759
    Porsche OFFICIAL: 911 GT2 RS (2017) 1/30/19 3:10 AM
    218930 2777
    Ferrari 488 GTB/GTS 1/17/19 8:13 PM
    195502 1789
    McLaren McLaren on a winning streak 2/16/19 10:26 AM
    191120 3352
    Others Audi R8 V10 Plus (2016 model) - Review (updated Feb 13th 2017) 12/17/18 12:42 PM
    157618 2491
    Porsche Boxster Spyder (981) 8/31/18 10:25 AM
    144570 757
    Ferrari Ferrari F12 Berlinetta / 599 GTO Successor 5/22/18 9:16 PM
    112976 789
    Others VW caught cheating emissions tests 5/3/18 7:52 PM
    CGX car nut
    107889 871
    Porsche Porsche Mission E - the future of Porsche? 2/15/19 9:29 PM
    CGX car nut
    98593 1365
    Porsche Donor vehicle for Singer Vehicle Design 12/7/18 10:15 PM
    Boxster Coupe GTS
    68800 673
    Others Tesla Roadster 2/13/19 8:40 AM
    57154 1723
    Porsche OFFICIAL: New 991.2 Carrera GTS models 11/3/18 11:09 AM
    48367 477
    Others Tesla Model X Thread Closed 2/23/18 3:41 PM
    43554 1122
    AMG AMG GT R 11/30/18 4:10 PM
    43106 605
    Lambo Aventador and SV 11/19/18 8:31 AM
    40827 472
    Porsche OFFICIAL: New 991.2 Turbo S Exclusive Series (2017) 12/4/18 3:17 PM
    40589 650
    AMG Mercedes E63 S AMG (2018) - Short Review (updated on a regular basis) 2/14/19 1:44 PM
    40197 387
    Porsche OFFICIAL: New Porsche Carrera T 12/13/18 2:27 PM
    39167 804
    269 items found, displaying 1 to 30.