BigMike's Forum

Automotive and Theory => Aero and Fluid Theory => Topic started by: BigMike on March 27, 2010, 09:41:11 PM

Title: Car Wind Tunnel Data
Post by: BigMike on March 27, 2010, 09:41:11 PM
The cd factor is not so important, but rather the air drag index factor, which is the drag coefficient x Frontal Area of the car (cd x A). The lower the number the more aerodynamic the car is.

Also many nose-heavy cars use lift in the front to become more balanced at high speeds.

Abarth Grande Punto esseesse
(A): 2.21 m
(cd): 0.34
(cd A): 0.75
at 200km/h
lift front 26kg
lift rear 31kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Abarth-Grande-Punto-esseesse.jpg)

Acura NSX-R (2002)
(A): 1.7800 m
(cd): 0.34
(cd A): 0.60
at 200km/h
downforce front 32kg
downforce rear 5kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Acura-NSX-R.jpg)

Alpina B3 Coupe
(A): 2.14 m
(cd): 0.29
(cd A): 0.63
at 200km/h
lift front 12kg
lift rear 13kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Alpina-B3-Coupe.jpg)

Audi R8 V10 5.2
(A) 2.024m
(cd) 0.36
(cd x A) 0.72
at 200km/h
lift front 23kg
downforce rear 3kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Audi-R8-5-2-FSI-quattro-R-tronic.jpg)

Audi S5
(A): 2.18 m
(cd): 0.31
(cd A): 0.67
at 200km/h
lift front 52kg
lift rear 34kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Audi-S5.jpg)

Audi TT-RS
(A) 2.09 m
(cd)0.31
(cd A) 0.64
at 200km/h
lift front 36kg
lift rear 2kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Audi-TT-RS.jpg)

Audi TT-S
(A) 2.10 m
(cd) 0.32
(cd A) 0.68
at 200km/h
lift front 42kg
lift rear 17kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Audi-TT-S.jpg)

Aston Martin DBS
(A): 2.11 m
(cd): 0.36
(cd A): 0.76
at 200km/h
lift front 11kg
lift rear 10kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Auston-Martin-DBS.jpg)

BMW e92 M3
(A): 2.17 m
(cd): 0.33
(cd A): 0.71
at 200km/h
lift front 10kg
lift rear 23kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/BMW-M3-04.jpg)

BMW X6 M
frontal surface area (A) 2.85m
cw (cd) 0.38
airdragindex (cd x A) 1.07
at 200km/h (125mph)
lift front axle 69kg
lift rear axle 48kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/BMW-X6-M.jpg)

BMW Z4 3.0si Coup
(A): 1.94 m
(cd): 0.33
(cd A): 0.64
at 200km/h
lift front 28kg
lift rear 43kg
(http://i704.photobucket.com/albums/ww46/rakudasama/cars/BMW-Z4-30si-Coupe.jpg)

Corvette C6 Coupe
(A): 2.0 m
(cd): 0.29
(cd A): 0.59
at 200km/h
lift front 54kg
lift rear 28kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Corvette-C6-Coupe.jpg)

Corvette C6 Z06
(A): 2.1 m
(cd): 0.308
(cd A): 0.647
at 200km/h
lift front 49kg
lift rear 22kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Corvette-Z06.jpg)

Corvette ZR1
(A) 2.059 m
(cd) 0.32
(cd A) 0.66
at 200km/h
lift front 39kg
lift rear 14kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Corvette-ZR1.jpg)

Ferrari 430 Scuderia
(A): 2.02 m
(cd): 0.33
(cd A): 0.66
at 200km/h
life front ?
lift rear 4kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Ferrari-430-Scuderia.jpg)

Ferrari 575 M Maranello
(A): 2.09 m
(cd): 0.32
(cd A): 0.66
at 200km/h
lift front 61kg
lift rear 40kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Ferrari-575-M-Maranello.jpg)

Ferrari 599 GTB Fiorano
(A): 2.23 m
(cd): 0.33
(cd A): 0.73
at 200km/h
lift front 41kg
lift rear 24 kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Ferrari-599-GTB-Fiorano.jpg)

Ferrari Challenge Stradale
(A): 2.0 m
(cd): 0.31
(cd A): 0.62
at 200km/h
downforce front 10kg
lift rear 21kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Ferrari-Challenge-Stradale.jpg)

Ferrari F430
(A): 2.04 m
(cd): 0.34
(cd A): 0.70
at 200km/h
lift front 11kg
lift rear 6kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Ferrari-F430-F1-10.jpg)

Ford Focus RS
(A) 2,35 m
(cd) 0,36
(cd A) 0,86
at 200km/h
downforce front 8kg
lift rear 4kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Ford-Focus-RS.jpg)

Ford GT
(A) 1.92 m
(cd) 0.35
(cd A) 0.67
at 200km/h
downforce front 44kg
lift rear 2kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Ford-GT.jpg)

Gumpert Apollo Sport
(A): 1,99 m
(cd): 0,57
(cd A): 1,14
the very bad cd is because of the giant rear wing and the million cooling openings all over the car ... but they are there for one reason downforce..
at 200km/h
downforce front 20kg
downforce rear 176kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Gumpert-Apollo-Sport.jpg)

Honda Civic Type R
(A): 1.93 m
(cd): 0.326
(cd A): 0.63
at 200km/h
downforce front 19kg
lift rear 44kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Honda-Civic-Type-R.jpg)

Koenigsegg CCR
(A): 1,86 m
(cd): 0,35
(cd A): 0,64
at 200km/h
downforce front 13kg
lift rear 11kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Koenigsegg-CCR-06.jpg)
Title: Re: Car Wind Tunnel Data
Post by: BigMike on March 27, 2010, 09:43:43 PM
Lamborghini Gallardo LP 560-4
(A) 1.93 m
(cd) 0.35
(cd A) 0.67
at 200km/h
downforce front 4kg
lift rear 37kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Lamborghini-Gallardo-LP-560-4.jpg)

Lamborghini Murcielago LP 640
(A): 2.04 m
(cd): 0.35
(cd A): 0.71
at 200km/h
downforce front 30kg
downforce rear 11kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Lamborghini-Murcielago-LP-640.jpg)

Lexus IS-F
(A) 2.22 m
(cd) 0.30
(cd A) 0.67
at 200km/h
lift front 31kg
lift rear 7kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Lexus-IS-F.jpg)

Lotus Exige S
(A): 1.62 m
(cd): 0.44
(cd A): 0.71
at 200km/h
downforce front 5kg
downforce rear 24kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Lotus-Exige-S.jpg)

Lotus Exige (Mk I)
(A) 1,631 m
(cd) 0.43
(cd x A) 0.70
at 200km/h
downforce front 20kg
downforce rear 58kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Lotus-Exige.jpg)

Maserati Coup Cambiocorsa
(A): 2.016 m
(cd): 0.34
(cd A): 0.68
at 200km/h
downforce front 55kg
downforce rear 45kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Maserati-Coupe-Cambiocorsa.jpg)

Mercedes C 63 AMG
(A): 2.18 m
(cd): 0.32
(cd A): 0.69
at 200km/h
lift front 35kg
lift rear 42kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Mercedes-C-63-AMG.jpg)

Mercedes CLK DTM AMG
(A): 2.15 m
(cd): 0.34
(cd A): 0.73
at 200km/h
lift front 37kg
downforce rear 12kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Mercedes-CLK-DTM-AMG.jpg)

Mercedes SL 65 AMG
(A): 2.1 m
(cd): 0.31
(cd A): 0.65
at 200km/h
lift front 29kg
lift rear 33kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Mercedes-SL-65-AMG.jpg)

Mercedes SL 65 AMG Black Series
(A) 2.17 m
(cd) 0.37
(cd A) 0.80
at 200km/h
lift front 56kg
downforce rear 22kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Mercedes-SL-65-AMG-Black-Series.jpg)

Mercedes SLK 55 AMG
(A): 1.95 m
(cw): 0.32
(cw A): 0.625
at 200km/h
lift front 23kg
lift rear 31kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Mercedes-SLK-55-AMG.jpg)

Mercedes SLR
(A): 2.07 m
(cd): 0.37
(cd A): 0.77
at 200km/h
downforce front 19kg
downforce rear 35kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Mercedes-SLR-McLaren-im-Supertest.jpg)

Mini Cooper S John Cooper Works
(A) 2.05 m
(cd) 0.36
(cd A) 0.73
at 200km/h
lift front 17kg
lift rear 20kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Mini-Cooper-S-JCW.jpg)

Mitsubishi Evo VII
(A): 2.12 m
(cd): 0.37
(cd A): 0.79
at 200km/h
downforce front 37kg
downforce rear 8kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Mitsubishi-Evo-VII.jpg)

Nissan GT-R
(A) 2,30 m
(cd) 0,31
(cd A) 0,71
at 200km/h
lift front 3kg
downforce rear 8kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Nissan-GT-R.jpg)

Opel Corsa OPC
(A): 2.15 m
(cd): 0.36
(cd A): 0.78
at 200km/h
downforce front 23kg
lift rear 22kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Opel-Corsa-OPC-01.jpg)

Opel Speedster Turbo
(A): 1.61 m
(cd): 0.38
(cd A): 0.61
at 200km/h
downforce front 23kg
lift rear 19kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Opel-Speedster.jpg)

Pagani Zonda F
(A): 2,08 m
(cd): 0,36
(cd A): 0,74
at 200km/h
downforce front 1kg
downforce rear 25kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Pagani-Zonda-F.jpg)

Porsche 911 Turbo old
(A): 2.04 m
(cd): 0.29
(cd A): 0.59
at 200km/h
lift front 9kg
downforce rear 12kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Porsche-911-Turbo-15.jpg)

Porsche 996 GT3 RS
(A): 1.94 m
(cd): 0.30
(cd A): 0.58
at 200km/h
lift front 19kg
downforce rear 26kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Porsche-996-GT3-RS.jpg)

Porsche 997 Carrera S facelift
(A): 2.02 m
(cd): 0.29
(cd A): 0.59
at 200km/h
lift front 24kg
lift rear 14kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Porsche-997-Carrera-S-facelift.jpg)

Porsche Carrera GT
(A): 1.95 m
(cd): 0.37
(cd A): 0.72
at 200km/h
downforce front 49kg
downforce rear 40g
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Porsche-Carrera-GT.jpg)

Porsche GT3 facelift
(A) 2.04 m
(cd) 0.32
(cd A) 0.66
at 200km/h
downforce front 15kg
downforce rear 19kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Porsche-GT3-facelift.jpg)

RUF RT12
(A): 2.04 m
(cd): 0.33
(cd A): 0.67
at 200km/h
lift front 11kg
downforce rear 34kg
(http://s704.photobucket.com/albums/ww46/rakudasama/cars/Ruf-RT-12-16.jpg)

Source: http://www.fastestlaps.com/forum/viewtopic.php?t=699
Title: Re: Car Wind Tunnel Data
Post by: BigMike on March 28, 2010, 10:57:06 PM
Bryan-

If you find the pic of the MK1 MR2, please post it up!
Title: Re: Car Wind Tunnel Data
Post by: BryanH on March 29, 2010, 11:08:33 PM
This isn't the one I was thinking of, but it might even be better.

http://mr2wiki.com/uploads/MKI/airflow-mk1.jpg
From here: http://mr2wiki.com/MKI/Aerodynamics

Also check out the MR2OC thread linked in the above page.

And while I was looking around I saw some very interesting things. :)

http://mr2wiki.com/MKI/LineDrawing
http://www.lfsforum.net/showthread.php?p=1089395#post1089395 [Soo clean!  Check out the screaming chicken on the rear roof visor]
http://mr2.com/forums/mk-1-mr2-aw11/Toyota-MR2-41366-88-mr2-cool-upgrades.html [The wheels on the Sherwood Toning car are AWESOME]
http://www.themotorreport.com.au/26471/bored-of-your-old-aw11-toyota-mr2-the-solution-is-at-hand
Title: Re: Car Wind Tunnel Data
Post by: BigMike on March 30, 2010, 09:46:02 PM
These are all great. I've already seen the "bored of your old aw11" one, that is just ridiculous hahah

Soo clean!  Check out the screaming chicken on the rear roof visor

(http://i42.tinypic.com/2hztqo4.jpg)

(http://i40.tinypic.com/10wqn8i.jpg)

That is REALLY awesome, reminds me of this one from Japan, I really like the dark matte gray...

(http://i704.photobucket.com/albums/ww46/rakudasama/cars/LovethispaintDsc01291.jpg)

(http://i704.photobucket.com/albums/ww46/rakudasama/cars/LovethispaintDsc01359TwoTone.jpg)

Also, I really like two tones on the MK1. Other examples include:

(http://i704.photobucket.com/albums/ww46/rakudasama/cars/nicecar.jpg)

(http://i704.photobucket.com/albums/ww46/rakudasama/cars/2ToneDSC01533.jpg)

(http://i704.photobucket.com/albums/ww46/rakudasama/cars/Awesomebodydesign3Small.jpg)

(http://i704.photobucket.com/albums/ww46/rakudasama/cars/nicecar3aSmall.jpg)
Title: Re: Car Wind Tunnel Data
Post by: Sirdeuce on March 30, 2010, 09:50:28 PM
Allllrighty then, I like the ABS intake, let's do something similar.
Title: Re: Car Wind Tunnel Data
Post by: BigMike on March 30, 2010, 09:52:24 PM
Adding the MK1 MR2 airflow to this thread. Thanks Bryan


(http://i704.photobucket.com/albums/ww46/rakudasama/cars/MK1_airflow.jpg)

(http://i704.photobucket.com/albums/ww46/rakudasama/cars/MK1_Strings.jpg)

(http://i704.photobucket.com/albums/ww46/rakudasama/cars/MK1_pressure.jpg)
Title: Re: Car Wind Tunnel Data
Post by: BigMike on March 31, 2010, 09:03:37 AM
Here is a sweet high resolution (1600x1200) pic of a 911 GT2 built by TechArt

Clicky for full size: http://www.seriouswheels.com/pics-2008/r-z-0-9/2008-TechArt-GTstreet-RS-based-on-Porsche-911-GT2-Wind-Tunnel-1600x1200.jpg

(http://www.seriouswheels.com/pics-2008/r-z-0-9/2008-TechArt-GTstreet-RS-based-on-Porsche-911-GT2-Wind-Tunnel-1600x1200.jpg)


edit: resized image