Crown

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

Forum - Thread


    RC - 996 Gears

    RC, do you know if 993 Turbo gears fit in the 996 Turbo transmission?

    Re: RC - 996 Gears

    Please specify what you mean by gears.

    Re: RC - 996 Gears

    I think the final drive ratio is the same between the 996 Turbo and the 993 Turbo, as is the 1st gear ratio. But the remaining gears ratios are different.

    I know gear ratios are engineered to work with the engine's power curve, but it looks like a 996 Turbo with the 2nd and 3rd gears from a 993 Turbo would have better acceleration in those gears.

    Re: RC - 996 Gears

    Yes, you're right. The first gear ratio and the final gear ratio are the same on both the 996 Turbo and 993 Turbo.
    If I take a short look at the 996 C4, the first gear ratio and the final gear ratio is the same too. And the 996 C4 gearbox doesn't have much in common with the 996 Turbo's and especially 993 Turbo's gearbox. I wouldn't read too much into it.
    The gears 2-5 have been enforced on the 996 Turbo gearbox, using the 993 Turbo parts might not be a good idea. Some Tuners offer different gear ratios which are actually good (strong) enough for the 996 Turbo but without adapting the Motronic to it (power/torque curve), it can harm your gearbox and even your engine. One reason why most people change the gear ratio of the 6th gear to obtain a higher top end, Porsche did exactly the contrary with the X50 to avoid higher speeds and to obtain a better high speed acceleration. Changing the final gear ratio might be a possibility too but I personally wouldn't do that because it can create severe problems too.
    cjv did some changes to his gear ratio and I think he adapted the power/torque curve to it. Not sure about it, maybe you should ask him. Send him a private mail through Rennteam.com, I'm sure he'll read it. If not, he might read this post and answer to it.
    I guess I know what you have in mind and it is actually good thinking. But if you want to get perfect results, just changing the gears won't do the job.
    I'll meet on Monday with somebody who is a pro in such things and maybe he can give me some answers/hints.

    Re: RC - 996 Gears

    Thanks in advance RC.

    I'm not interested in top end performance, and 1st gear in the 996 Turbo is a great pulling gear already. I am looking at slightly better performance in 2nd and 3rd without doing any engine modifications (including the ECU).

    When I looked at the 993 Turbo gears I noticed 2nd and 3rd gears were better than the 996 Turbo. Since these 993 gears are not a "major" departure from the same gears in the 996 TT, I think maybe replacing the stock 996 Turbo 2nd and 3rd gears with 993 Turbo 2nd and 3rd gears might work well without any ECU modifications. Maybe

    Re: RC - 996 Gears

    You'll get a precise answer on this Monday evening.

    Re: RC - 996 Gears ... update

    It is possible but not necessarily recommended.
    ECU should be adapted to the changed gears, otherwise engine and drivetrain/gearbox can be damaged.

    Re: RC - 996 Gears ... update

    Thanks RC.

     
    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 I) Thread Closed 9/24/20 12:47 AM
    watt
    629619 2849
    Porsche Sticky The moment I've been waiting for... 12/30/20 9:03 AM
    rhino
     
     
     
     
     
    389448 1279
    Porsche Sticky OFFICIAL: New Porsche 911 Turbo S (2020) 7/4/21 12:06 PM
    nberry
    91523 1094
    Porsche Sticky Welcome to Rennteam: Cars and Coffee... (photos) 7/28/21 4:07 PM
    pgouveia
    49430 354
    Porsche Sticky ROAD TEST: New 992 Carrera 4S 3/3/21 10:57 PM
    Wonderbar
    37397 336
    Porsche Sticky Porsche Taycan Turbo S - Short Review 10/19/20 6:12 PM
    Leawood911
    34903 380
    Porsche Sticky SUN'S LAST RUN TO WILSON, WY - 991 C2S CAB LIFE, END OF AN ERA (Part II) 8/2/21 4:14 PM
    lexs4
    21631 465
    Porsche Sticky Porsche extends the Taycan model range (Taycan 2WD) 2/1/21 12:42 PM
    Leawood911
    5747 29
    Porsche Cayman GT4 5/4/21 4:46 PM
    Topspeed
    447232 3586
    Porsche OFFICIAL: 911 GT2 RS (2017) 6/25/21 2:56 PM
    the-missile
    373717 3506
    McLaren McLaren on a winning streak 6/22/21 5:42 PM
    Topspeed
    373344 3917
    Porsche OFFICIAL: 991.2 GT3 RS (2018) 4/28/21 12:26 PM
    W8MM
    336141 3252
    Porsche OFFICIAL: 911 R (2016) 12/8/20 7:51 PM
    DJM48
    312731 2646
    Porsche Tesla Roadster 9/23/20 8:22 PM
    bluelines
    281121 4279
    Porsche OFFICIAL: The new Porsche 992 – a design icon and high-tech sports car 7/20/21 3:10 PM
    Topspeed
    239403 1567
    Porsche OFFICIAL: New Panamera (2016) 2/11/21 9:22 AM
    Itsme
    163641 1379
    Porsche 992 GT3 7/31/21 11:32 PM
    bvineyards
    149949 2840
    Others Alfa Romeo 4C 9/23/20 10:22 AM
    RCA
    139616 792
    Lambo Lamborghini Huracan and variants 4/9/21 4:32 PM
    Topspeed
    113274 1225
    Porsche Donor vehicle for Singer Vehicle Design 7/30/21 4:07 PM
    WhoopsyM
    96698 735
    Porsche Welcome to the new Taycan Forum! 7/5/21 4:30 PM
    BjoernB
    80111 1221
    McLaren F1 7/10/21 7:43 AM
    BiTurbo
    78582 209
    AMG AMG GT R 7/8/21 3:07 PM
    CGX car nut
    67354 824
    Lambo Aventador and SV 7/10/21 1:17 AM
    4trac
    67132 697
    Porsche 991 Speedster 9/3/20 4:29 PM
    Topspeed
    64417 878
    Porsche Nürburgring - Tesla vs. Taycan 11/23/20 6:10 PM
    Topspeed
    46725 596
    Others Bugatti Chiron 7/22/21 6:55 PM
    Topspeed
    38426 480
    Ferrari Ferrari 812 Superfast 6/24/21 6:30 PM
    Porker
    35209 531
    Porsche Olive 991.2 GT3 Clubsport 1/1/21 7:58 PM
    throt
    35192 615
    BMW M BMW M2 Rumors 7/7/21 8:38 PM
    Jim_in_Iowa
    29975 394
    269 items found, displaying 1 to 30.