Crown

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!!!

    http://awe-tuning.com/pages/gallery/dyno_videos/index.cfm

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

    Re: MY04 GT3 Dyno day - Stock configuration

    Rockitman,

    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):

    http://www.986host.com/gallery/benkea/sc4th_hp_and_tq

    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):

    http://www.986host.com/gallery/benkea/996_sc_hp_vs_gt3


    Re: MY04 GT3 Dyno day - Stock configuration

    The pull was a fourth gear pull...here 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

    Quote:
    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

    Quote:
    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

    Ben-FR,

    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

     
    Edit

    Forum

    Board Subject Last post Rating Views Replies
    Porsche Sticky SUN'S LAST RUN TO WILSON, WY - 991 C2S CAB LIFE, END OF AN ERA (Part II) 3/28/24 3:21 AM
    watt
    689325 1780
    Porsche Sticky Welcome to Rennteam: Cars and Coffee... (photos) 2/19/24 11:51 PM
    Wonderbar
    409088 564
    Porsche Sticky OFFICIAL: Cayman GT4 RS (2021) 5/12/23 12:11 PM
    W8MM
    255697 288
    Porsche Sticky OFFICIAL: Porsche 911 (992) GT3 RS - 2022 3/12/24 8:28 AM
    DJM48
    234946 323
    Porsche Sticky The new Macan: the first all-electric SUV from Porsche 1/30/24 9:18 AM
    RCA
    65500 45
    Porsche Sticky OFFICIAL: Taycan 2024 Facelift 3/15/24 1:23 PM
    CGX car nut
    4644 50
    Porsche The moment I've been waiting for... 2/1/24 7:01 PM
    Pilot
     
     
     
     
     
    857898 1364
    Porsche 992 GT3 7/23/23 7:01 PM
    Grant
    773904 3868
    Porsche OFFICIAL: New Porsche 911 Turbo S (2020) 4/6/23 7:43 AM
    crayphile
    447864 1276
    Porsche Welcome to the new Taycan Forum! 2/10/24 4:43 PM
    nberry
    378856 1526
    Porsche GT4RS 2/22/24 5:16 AM
    tso
    365598 1424
    Porsche Donor vehicle for Singer Vehicle Design 7/3/23 12:30 PM
    Porker
    360777 797
    Others Tesla 2 the new thread 12/13/23 2:48 PM
    CGX car nut
    354709 2401
    Lambo Aventador and SV 3/30/23 1:59 PM
    CGX car nut
    279145 724
    Ferrari Ferrari 812 Superfast 4/21/23 8:09 AM
    the-missile
    275519 550
    Porsche Red Nipples 991.2 GT3 Touring on tour 3/14/24 8:55 PM
    blueflame
    272523 658
    Porsche Collected my 997 GTS today 10/19/23 7:06 PM
    CGX car nut
     
     
     
     
     
    248215 812
    Lambo Huracán EVO STO 7/30/23 6:59 PM
    mcdelaug
    225063 346
    Others Corvette C8 10/16/23 3:24 PM
    Enmanuel
    217918 488
    Lotus Lotus Emira 6/25/23 2:53 PM
    Enmanuel
    196717 101
    Others Gordon Murray - T.50 11/22/23 10:27 AM
    mcdelaug
    155309 387
    Porsche Back to basics - 996 GT3 RS 6/11/23 5:13 PM
    CGX car nut
    126885 144
    Ferrari [2022] Ferrari Purosangue (SUV) 4/15/23 5:20 AM
    watt
    120468 141
    BMW M 2024 BMW M3 CS Official Now 12/29/23 9:04 AM
    RCA
    105964 303
    Motor Sp. 2023 Formula One 12/19/23 5:38 AM
    WhoopsyM
    102503 685
    Others Valkyrie final design? 4/28/23 2:45 AM
    Rossi
    97645 219
    Porsche 2022 992 Safari Model 3/7/24 4:22 PM
    WhoopsyM
    81039 239
    AMG Mercedes-Benz W124 500E aka Porsche typ 2758 2/23/24 10:03 PM
    blueflame
    74333 297
    Porsche 992 GT3 RS 3/3/24 7:22 PM
    WhoopsyM
    52115 314
    Motor Sp. Porsche 963 3/16/24 9:27 PM
    WhoopsyM
    23091 237
    133 items found, displaying 1 to 30.