Crown

Board: Other Sports Cars Language: English Region: Worldwide Share/Save/Bookmark Close

Forum - Thread


    Front and rear downforces (or lift)

    BMW X6 M 

    frontal surface area (A) 2.85m² 
    cw (cd) 0.38 
    airdragindex (cd x A) 1.07 
    at 200km/h (125mph) 
    lift front axle 69kg 
    lift rear axle 48kg 

     

    Audi R8 V10 5.2 
    (A) 2.024m² 
    (cd) 0.36 
    (cd x A) 0.72 
    at 200km/h 
    lift front 23kg 
    downforce rear 3kg 

     

    Mercedes SL 65 AMG Black Series 
    (A) 2.17 m² 
    (cd) 0.37 
    (cd × A) 0.80 
    at 200km/h 
    lift front 56kg 
    downforce rear 22kg 

     

    Corvette ZR1 
    (A) 2.059 m² 
    (cd) 0.32 
    (cd × A) 0.66 
    at 200km/h 
    lift front 39kg 
    lift rear 14kg 

     

    Ford GT 
    (A) 1.92 m² 
    (cd) 0.35 
    (cd × A) 0.67 
    at 200km/h 
    downforce front 44kg 
    lift rear 2kg 

     

    Mini Cooper S John Cooper Works 
    (A) 2.05 m² 
    (cd) 0.36 
    (cd × A) 0.73 
    at 200km/h 
    lift front 17kg 
    lift rear 20kg 

     

    Lexus IS-F 
    (A) 2.22 m² 
    (cd) 0.30 
    (cd × A) 0.67 
    at 200km/h 
    lift front 31kg 
    lift rear 7kg 

     

    Ford Focus RS 
    (A) 2,35 m² 
    (cd) 0,36 
    (cd × A) 0,86 
    at 200km/h 
    downforce front 8kg 
    lift rear 4kg 

     

    Nissan GT-R 
    (A) 2,30 m² 
    (cd) 0,31 
    (cd × A) 0,71 
    at 200km/h 
    lift front 3kg 
    downforce rear 8kg 

     

    Porsche GT3 facelift 
    (A) 2.04 m² 
    (cd) 0.32 
    (cd × A) 0.66 
    at 200km/h 
    downforce front 15kg 
    downforce rear 19kg 

     

    Audi TT-S 
    (A) 2.10 m² 
    (cd) 0.32 
    (cd × A) 0.68 
    at 200km/h 
    lift front 42kg 
    lift rear 17kg 

     

    Lamborghini Gallardo LP 560-4 
    (A) 1.93 m² 
    (cd) 0.35 
    (cd × A) 0.67 
    at 200km/h 
    downforce front 4kg 
    lift rear 37kg 

     

    Alpina B3 Coupe 
    (A): 2.14 m² 
    (cd): 0.29 
    (cd × A): 0.63 
    at 200km/h 
    lift front 12kg 
    lift rear 13kg 

     

    Aston Martin DBS 
    (A): 2.11 m² 
    (cd): 0.36 
    (cd × A): 0.76 
    at 200km/h 
    lift front 11kg 
    lift rear 10kg 

     

    Abarth Grande Punto esseesse 
    (A): 2.21 m² 
    (cd): 0.34 
    (cd × A): 0.75 
    at 200km/h 
    lift front 26kg 
    lift rear 31kg 

     

    Mercedes C 63 AMG 
    (A): 2.18 m² 
    (cd): 0.32 
    (cd × A): 0.69 
    at 200km/h 
    lift front 35kg 
    lift rear 42kg 

     

    BMW Z4 3.0si Coupé 
    (A): 1.94 m² 
    (cd): 0.33 
    (cd × A): 0.64 
    at 200km/h 
    lift front 28kg 
    lift rear 43kg 

     

    Lotus Exige S 
    (A): 1.62 m² 
    (cd): 0.44 
    (cd × A): 0.71 
    at 200km/h 
    downforce front 5kg 
    downforce rear 24kg 

     


    Porsche 997 Carrera S facelift 
    (A): 2.02 m² 
    (cd): 0.29 
    (cd × A): 0.59 
    at 200km/h 
    lift front 24kg 
    lift rear 14kg 



    Ferrari 430 Scuderia 
    (A): 2.02 m² 
    (cd): 0.33 
    (cd × A): 0.66 
    at 200km/h 
    lift rear 4kg 

     

    Audi S5 
    (A): 2.18 m² 
    (cd): 0.31 
    (cd × A): 0.67 
    at 200km/h 
    lift front 52kg 
    lift rear 34kg 

     

    Lamborghini Murcielago LP 640 
    (A): 2.04 m² 
    (cd): 0.35 
    (cd × A): 0.71 
    at 200km/h 
    downforce front 30kg 
    downforce rear 11kg 

     

    from a other planet were the Gumpert Apollo numbers.. 

    Gumpert Apollo Sport 
    (A): 1,99 m² 
    (cd): 0,57 
    (cd × A): 1,14 
    downforce front 20kg 
    downforce rear 176kg



     

    Honda NSX-R (2002) 
    (A): 1.7800 m² 
    (cd): 0.34 
    (cd × A): 0.60 
    at 200km/h 
    downforce front 32kg 
    downforce rear 5kg 

     

    Porsche Carrera GT 
    (A): 1.95 m² 
    (cd): 0.37 
    (cd × A): 0.72 
    at 200km/h 
    downforce front 49kg 
    downforce rear 40g 

     

    Mitubishi Evo VII 
    (A): 2.12 m² 
    (cd): 0.37 
    (cd × A): 0.79 
    at 200km/h 
    downforce front 37kg 
    downforce rear 8kg 

     

    Pagani Zonda F 
    (A): 2,08 m² 
    (cd): 0,36 
    (cd × A): 0,74 
    at 200km/h 
    downforce front 1kg 
    downforce rear 25kg 

     

    Koenigsegg CCR 
    (A): 1,86 m² 
    (cd): 0,35 
    (cd × A): 0,64 
    at 200km/h 
    downforce front 13kg 
    lift rear 11kg 

     

    Porsche 997 Turbo old 
    (A): 2.04 m² 
    (cd): 0.29 
    (cd × A): 0.59 
    at 200km/h 
    lift front 9kg 
    downforce rear 12kg 


    --


    Re: Front and rear downforces (or lift)

    Very interesting. 

    Is that a summary of Sport Auto Supertest wind tunnel results? 


    --

    fritz


    Re: Front and rear downforces (or lift)

    Thanks man! Uber cool! Smiley


    --

    There is no try. Just do.


    Re: Front and rear downforces (or lift)

    Very interesting Gauss

    I would have never though that the ones with the least overall drag in the list would be the 997 Carrera and Turbo... and thats some serious drag for the X6


    --


    Re: Front and rear downforces (or lift)

    Thanks

    Would be really curious to see the difference between the 997 with the spoiler up v. with the spoiler down.


    --

    Slow In, Fast Out


    Re: Front and rear downforces (or lift)

    wow interesting to see who has downforce. Not that it says too much about the car handling as its all within the setup but Lotus and Porsche and Lambo have the most downforce. The CGT had really impressive number IMO.

    THanks for sharing.


    --

    indeed shifting is ancient technology - so is a fuel burning engine..  I happen to like both :) 


    Re: Front and rear downforces (or lift)

    Fascinating data - thanks Gauss 


    --

     
    RT Moderator - 997.1 Carrera S GT Silver/Cocoa, -20mm/LSD, PSE, short shifter, SportDesign rims, Zuffenhausen collection


    Re: Front and rear downforces (or lift)

    Very interesting, thanks for posting.


    --

    The secret of life is to admire without desiring.


    Re: Front and rear downforces (or lift)

     Thanks   Smiley


    Re: Front and rear downforces (or lift)

    So interesting . Thanks


    --

     997.2 C2S, PDK, -20mm


    Re: Front and rear downforces (or lift)

    great post and seems porsche does really put some 'race' engineering into their cars.....


    --
    Speed has never killed anyone, suddenly becoming stationary... That's what gets you.

    Re: Front and rear downforces (or lift)

    awesome, this comparison tells the difference between those who just look like sports cars and the real thing. No wonder the R8 needs a huge wing.


    Re: Front and rear downforces (or lift)

    Why does Ferrari claim such high downforce numbers if their car (Scud) actually generates lift on the rear axle?


    Re: Front and rear downforces (or lift)

    Eunice:

    awesome, this comparison tells the difference between those who just look like sports cars and the real thing. No wonder the R8 needs a huge wing.

     Talk about looking the part, the apollo really shatters the competition. 


    Re: Front and rear downforces (or lift)

    trip:

    Why does Ferrari claim such high downforce numbers if their car (Scud) actually generates lift on the rear axle?

    They deduct the number of kilograms that their advertising understate their cars' weights by from the actual wind tunnel aerodynamic lift figures, and that results in negative lift figures (= downforce) which they then also publish in their advertising.

    So everything works out equal in the end and no one can claim that their advertising is dishonest. Smiley

     

     


    --

    fritz


    Re: Front and rear downforces (or lift)

    fritz:
    trip:

    Why does Ferrari claim such high downforce numbers if their car (Scud) actually generates lift on the rear axle?

    They deduct the number of kilograms that their advertising understate their cars' weights by from the actual wind tunnel aerodynamic lift figures, and that results in negative lift figures (= downforce) which they then also publish in their advertising.

    So everything works out equal in the end and no one can claim that their advertising is dishonest. Smiley

     

     

    Lol very clever! Ferrari should be held accountable for fake downforce claims. Smiley
     


    Re: Front and rear downforces (or lift)

    Well, often, they'll claim that a certain spolier or a certain shape adds downforce.
    I'm sure they compared the car without that feature or shape to the car with that feature...

    Voilá; downforce!


    --

    Porsche, seperates LeMans from LeBoys

     
    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) 5/14/24 2:04 PM
    RCA
    802839 1806
    Porsche Sticky Welcome to Rennteam: Cars and Coffee... (photos) 4/7/24 11:48 AM
    Boxster Coupe GTS
    448445 565
    Porsche Sticky OFFICIAL: Porsche 911 (992) GT3 RS - 2022 3/12/24 8:28 AM
    DJM48
    265981 323
    Porsche Sticky The new Macan: the first all-electric SUV from Porsche 1/30/24 9:18 AM
    RCA
    89986 45
    Porsche Sticky OFFICIAL: Taycan 2024 Facelift 3/15/24 1:23 PM
    CGX car nut
    6453 50
    Porsche The moment I've been waiting for... 2/1/24 7:01 PM
    Pilot
     
     
     
     
     
    885478 1364
    Porsche 992 GT3 7/23/23 7:01 PM
    Grant
    832597 3868
    Porsche GT4RS 4/21/24 11:50 AM
    mcdelaug
    399273 1454
    Porsche Welcome to the new Taycan Forum! 2/10/24 4:43 PM
    nberry
    395541 1526
    Others Tesla 2 the new thread 12/13/23 2:48 PM
    CGX car nut
    382235 2401
    Porsche Donor vehicle for Singer Vehicle Design 7/3/23 12:30 PM
    Porker
    370708 797
    Porsche Red Nipples 991.2 GT3 Touring on tour 5/12/24 6:23 PM
    blueflame
    293374 669
    Porsche Collected my 997 GTS today 10/19/23 7:06 PM
    CGX car nut
     
     
     
     
     
    265376 812
    Lambo Huracán EVO STO 7/30/23 6:59 PM
    mcdelaug
    243848 346
    Lotus Lotus Emira 6/25/23 2:53 PM
    Enmanuel
    238492 101
    Others Corvette C8 10/16/23 3:24 PM
    Enmanuel
    222144 488
    Others Gordon Murray - T.50 11/22/23 10:27 AM
    mcdelaug
    172997 387
    Porsche Back to basics - 996 GT3 RS 6/11/23 5:13 PM
    CGX car nut
    144856 144
    BMW M 2024 BMW M3 CS Official Now 12/29/23 9:04 AM
    RCA
    120983 303
    Motor Sp. 2023 Formula One 12/19/23 5:38 AM
    WhoopsyM
    111382 685
    Porsche 2022 992 Safari Model 3/7/24 4:22 PM
    WhoopsyM
    85507 239
    AMG Mercedes-Benz W124 500E aka Porsche typ 2758 2/23/24 10:03 PM
    blueflame
    75721 297
    Porsche 992 GT3 RS 3/3/24 7:22 PM
    WhoopsyM
    54785 314
    Motor Sp. Porsche 963 5/14/24 7:53 AM
    Porker
    26300 247
    Ferrari Ferrari 296 GTB (830PS, Hybrid V6) 1/21/24 4:29 PM
    GT-Boy
    21659 103
    BMW M 2022 BMW M5 CS 4/8/24 1:43 PM
    Ferdie
    20098 140
    AMG G63 sold out 9/15/23 7:38 PM
    Nico997
    17018 120
    AMG [2022] Mercedes-AMG SL 4/23/24 1:24 PM
    RCA
    14265 225
    Motor Sp. 24-Hour race Nürburgring 2018 5/25/23 10:42 PM
    Grant
    11461 55
    Porsche Porsche Mission X Hypercar 12/3/23 8:52 AM
    996FourEss
    11186 63
    123 items found, displaying 1 to 30.