Quote:
Originally Posted by aerohead
This 'direct-downforce' Rally-Car spoiler creates 
1) ultra-super velocity
2) all pressure recovery is lost
3) base pressure is lowered
4) pressure drag is increased
5) overall drag increases, from Cd 0.297, to Cd 0.36
6) a 63-count increase
7) a 21% drag increase
A really stupid thing to do to a car |
https://www.miataturbo.net/insert-bs...us-cars-67417/
Quote:
Ford Focus RS
(A) 2,35 m²
(cd) 0,36
(cd × A) 0,86
at 200km/h
downforce front 8kg
lift rear 4kg
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Been a long time since Ford made a 2-door Focus, looking around found some information on the 4-door RS Focus.
2016
The Ford Focus RS’s Aerodynamics Design
https://mk3focusrs.club/about-the-ca.../aerodynamics/
Quote:
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Jamal explains: “We have been doing a lot of aerodynamics development using wind tunnels and just like the Shelby GT 350, our objective for the RS was zero lift at the rear and the front. That is quite a lofty goal in a sports hatchback.”
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RE:
Quote:
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A really stupid thing to do to a car
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If we could find out the unmodified cars lift numbers perhaps we could define "stupid".
Maybe not too stupid if the unmodified car when "driven in anger" tends to leave the road or at least crosses the painted lines on the road.
__________________
George
Architect, Artist and Designer of Objects
2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft
You cannot sell aerodynamics in a can............
Last edited by kach22i; 01-14-2023 at 07:04 AM..
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