Make a donation

Author Topic: Downforce Figures!!!  (Read 1329 times)

Offline Poverty

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 36
  • -Receive: 21
  • Posts: 1543
Downforce Figures!!!
« on: August 29, 2010, 02:21:40 pm »
Interesting results with 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



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



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



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



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



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



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




Offline Poverty

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 36
  • -Receive: 21
  • Posts: 1543
Re: Downforce Figures!!!
« Reply #1 on: August 29, 2010, 02:45:07 pm »
TTRS

Cw 0,32
36 kg uplift at the front
2 kg uplift at the rear axle.



Offline RobH

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 3
  • -Receive: 9
  • Posts: 581
  • Revo stg 2+
Re: Downforce Figures!!!
« Reply #2 on: August 30, 2010, 10:56:38 am »
gumpert appollo 176kg downforce :notworthy:

Offline WhiteGTI

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 29
  • -Receive: 22
  • Posts: 3222
  • F-A-S-T
Re: Downforce Figures!!!
« Reply #3 on: August 30, 2010, 11:30:23 am »
So if it has lift, then it has no downforce?! :confused:
2008 Golf GTI - Revo Stage 2 NOW SOLD

2006 E46 BMW M3 - 343hp
2000 Lotus Elise Sport160 - 160hp

Offline fuscobal

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 2
  • -Receive: 27
  • Posts: 659
Re: Downforce Figures!!!
« Reply #4 on: February 10, 2012, 03:18:34 pm »
Lift is the opposite of downforce and very bad for grip so the car will go up instead of pushing to the ground !
Mk5 GTI 6MT - Revo stage 3

Offline tony_danza

  • Just look at my post count
  • ******
  • Thank You
  • -Given: 3
  • -Receive: 112
  • Posts: 3013
  • The voice of objective reason, but mine's best.
Re: Downforce Figures!!!
« Reply #5 on: February 10, 2012, 03:49:27 pm »
It's why cars feel floaty at high speed, but downforce is also drag slowing you down.
Sideways yo!

Offline fuscobal

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 2
  • -Receive: 27
  • Posts: 659
Re: Downforce Figures!!!
« Reply #6 on: February 11, 2012, 12:06:07 pm »
Not necesarilly, Tony. Generally wings increase drag while underbody parts can decrease drag while also increasing downforce !
Mk5 GTI 6MT - Revo stage 3