Crown

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

Forum - Thread


    GT3RS Cup and RSR Engine

    Why doesn't any tuner use any of the parts from Porsche Motorsport to modify the GT3 engine.

    In particular I am talking about the intake that is on the RSR. The intake on the RSR has 6 throttle control valves - 1 for each of the 6 cylinders, and along with cam mods and ECU mods and air intake mods allows the motor to run up to 435HP.

    In October issue of EVO they have an article on Porsche Motorsports. The 3.6L motor is good for 10,500rpm's and almost 500 normally aspirated power.

    I have posted this question before, only to get people telling me that the RSR and cup cars need their engines broken down every race etc etc blah, blah.

    But I don't see why or how putting an intake like this would jeopardize liabiliy.

    FVD sells intake manifolds for the 964's (6900 Euros) which combined with new cams, and ECU gives another 30HP.
    Further the new M5 has 10 throttle control valves for each of its 10 cylinders - and I know that engine wont need to be broken down every few thousand miles.

    Does anyone have any legitiamte answers to this?

    Re: GT3RS Cup and RSR Engine

    There are tuners using those valves. I can't recall any names right now, though.
    Sportec and RUF, perhaps?

    Re: GT3RS Cup and RSR Engine

    My guess is that the additional throttle butterflies do not cause any shorter engine life by themselves, but that their benefit is derived by allowing better air intake flow at very high revs. If you keep the 8,200rpm redline, they probably provide negligible improvement. So, to maximize their benefit, you need to rev very high. And revving very high causes frequent re-builds...

    Re: GT3RS Cup and RSR Engine

    I have to agree with Grant on that one. If you remember that those RSR engines have to last at least a single 24hour-race this is clearly less distances than you might drive with your GT3 on the street. The hp figures on those engines are primarily due to higher RPMs.

    I am also not too sure if there wouldn't be a cheaper way to improve engine output - the modifications on Cup-cars and endurance racers are due to regulations that restrict you to improve on other parts.

    Try www.koro.de for street-useable engine modifications on the GT3. I cannot comment on them but they increase the displacement on above mentioned models and work for several racing teams either!

    Greetings!

    Re: GT3RS Cup and RSR Engine

    Quote:
    RR4 said:
    Why doesn't any tuner use any of the parts from Porsche Motorsport to modify the GT3 engine.

    In particular I am talking about the intake that is on the RSR. The intake on the RSR has 6 throttle control valves - 1 for each of the 6 cylinders, and along with cam mods and ECU mods and air intake mods allows the motor to run up to 435HP.

    Does anyone have any legitiamte answers to this?




    The intake manifold with 6 throttle control valves will be just one of a multitude of changes incorporated into the RSR engine to enable it to produce its much higher power rating at much higher revs. What makes you think that using this particular item in isolation will be effective or cost efficient?

    Something tells me you are not going to accept this as a "legitimate answer".

    Re: GT3RS Cup and RSR Engine

    It isn't always easy for Tuners, especially those who aren't involved in motorsports or who don't have a "good friend" at Porsche Motorsport, to get all Porsche Motorsport parts which are available.
    And Porsche Motorsport parts are usually not cheap, making them pretty expensive for customers when the Tuners add their "share" to the price tag too.
    There are indeed Tuners who modify GT3 engines using Porsche Motorsport parts. But these engines usually aren't street legal and if they are, there is a lot of money involved.

    And are you really sure you want to use Porsche Motorsport parts for tuning? Racing parts are usually made VERY durable with a short lifespan duration in mind.
    So you might get titanium con rods and they resist much higher stress but for how long? 5000 km? 10000 km? Again just a theoretical and inaccurate example but I guess you get my point again.



    Customers want CHEAP stuff, just read the comments on Rennteam.com and other internet forums.
    People don't understand the difference in quality regarding engine software, how do you want them to understand the difference in hardware quality?


    Would you pay let's say another 20000 USD to get your GT3 engine modified with Porsche Motorsport parts to let's say 40 HP more? Especially since there are so called Tuners who offer the same for 2000 USD? Just an inaccurate example but you get my point.

     
    Edit

    Forum

    Board Subject Last post Rating Views Replies
    Porsche Sticky The moment I've been waiting for... 5/18/22 6:36 PM
    Pilot
     
     
     
     
     
    586738 1306
    Porsche Sticky OFFICIAL: New Porsche 911 Turbo S (2020) 6/8/22 4:41 PM
    Topspeed
    224367 1180
    Porsche Sticky SUN'S LAST RUN TO WILSON, WY - 991 C2S CAB LIFE, END OF AN ERA (Part II) 6/24/22 5:27 PM
    TB993tt
    116164 1055
    Porsche Sticky Welcome to Rennteam: Cars and Coffee... (photos) 5/29/22 8:01 PM
    Boxster Coupe GTS
    110414 406
    Porsche Sticky Porsche Taycan Turbo S - Short Review 1/3/22 7:55 AM
    Rossi
    91121 531
    Porsche Sticky OFFICIAL: Cayman GT4 RS (2021) 1/15/22 10:41 PM
    watt
    31977 1
    Porsche Cayman GT4 10/5/21 7:04 PM
    Topspeed
    514552 3587
    Porsche OFFICIAL: 911 GT2 RS (2017) 9/28/21 3:25 AM
    WhoopsyM
    430167 3507
    McLaren McLaren on a winning streak 2/1/22 10:14 PM
    SSO.
    426998 3954
    Porsche OFFICIAL: 991.2 GT3 RS (2018) 11/17/21 5:18 PM
    Rossi
    390771 3256
    Porsche OFFICIAL: 911 R (2016) 2/1/22 9:49 AM
    RCA
    372795 2655
    Porsche 992 GT3 6/26/22 9:49 PM
    TB993tt
    357997 3655
    Porsche OFFICIAL: The new Porsche 992 – a design icon and high-tech sports car 9/29/21 1:59 AM
    watt
    291579 1587
    Porsche Donor vehicle for Singer Vehicle Design 2/10/22 9:08 PM
    Topspeed
    138918 772
    Porsche Welcome to the new Taycan Forum! 6/26/22 1:34 AM
    WhoopsyM
    136716 1389
    McLaren F1 7/10/21 7:43 AM
    BiTurbo
    111600 209
    AMG AMG GT R 3/13/22 8:52 PM
    spudgun
    111507 834
    Lambo Aventador and SV 5/20/22 5:24 PM
    Topspeed
    109073 710
    Others Tesla 2 the new thread 6/23/22 9:08 PM
    CGX car nut
    95406 1713
    Porsche GT4RS 6/18/22 5:42 PM
    Grant
    86903 979
    Motor Sp. [2021] Formula 1 4/19/22 10:08 PM
    Leawood911
    76692 1590
    Others Bugatti Chiron 4/12/22 9:24 PM
    blueflame
    75562 520
    Ferrari Ferrari 812 Superfast 6/12/22 5:09 PM
    watt
    71245 535
    BMW M BMW M2 Rumors 2/28/22 7:42 PM
    Topspeed
    62565 409
    Porsche Red Nipples 991.2 GT3 Touring on tour 5/27/22 12:47 PM
    blueflame
    55734 480
    Porsche Dave and Gnil @ Nürburgring Nordschleife 5/19/22 11:01 PM
    Grant
    54614 721
    Lambo Urus (SUV) 6/7/22 1:20 PM
    Topspeed
    54582 593
    Others Corvette C8 11/8/21 8:04 PM
    Topspeed
    50301 442
    Others Toyota Yaris GR 4/13/22 8:33 PM
    Grant
    27144 640
    Motor Sp. [2022] Formula 1 6/26/22 1:02 AM
    WhoopsyM
    25253 951
    221 items found, displaying 1 to 30.