Evolution VIII and MR Cd (Coefficient of Drag)
#1
Evolution VIII and MR Cd (Coefficient of Drag)
what is the Cd of the VIII GSR and the MR ?
i know the standard VIII GSR's Cd is lower than the VII GSR by 0.01 Cd and the MR is lower than the standard VIII GSR by .05 - .1 Cd but i dont know the VII's Cd so all that info is useless
can anyone shed some light on this?
i know the standard VIII GSR's Cd is lower than the VII GSR by 0.01 Cd and the MR is lower than the standard VIII GSR by .05 - .1 Cd but i dont know the VII's Cd so all that info is useless
can anyone shed some light on this?
#2
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Your decimals are off.
If the MR is lower, it'd be lower by 0.005 to 0.01. 0.1 is HUGE. That would be an amazing aerodynamic achievement that would make world news.
If the MR is lower, it'd be lower by 0.005 to 0.01. 0.1 is HUGE. That would be an amazing aerodynamic achievement that would make world news.
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Originally Posted by 1QWKEVO
no i think our drag coef is like .29 don't quote me on that though...
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the Sti's CD is .33 so I doubt are cars are as "brick shaped" as those cars are Our cars are pretty aerodynamic, we just happen to have alot of structures to aid in downforce and under the car things to aid in reducing lift
#11
Originally Posted by EVOTEXAS
I think our Cd is more like .31 or .32 or so. My old 350Z with Aero package was like .29 or .30. The Z without the Aero package is .31. There is no way in hell the EVO comes close the the Z's aero.
#12
Originally Posted by 1QWKEVO
the Sti's CD is .33 so I doubt are cars are as "brick shaped" as those cars are Our cars are pretty aerodynamic, we just happen to have alot of structures to aid in downforce and under the car things to aid in reducing lift
the hood scoop itself must add .2 to the equation and dont even get me started with that bulbouse front end
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Originally Posted by KnifeEdge_2K1
ferrari 360 is .335 dont trust ur eyes man, and i doubt the 350Z is .31, the NSX is .3 and the Z is way too fat to come close to that
I work for Nissan, pal. Plus I owned a Z. I think you are the one who is "trusting the eyes." The Z was designed in a wind tunnel. The Ferrari was designed on canvas. I know what I'm talking about. Don't forget it.
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Originally Posted by KnifeEdge_2K1
there is no way the sti can have a lower cd then the evo 8 or mr
the hood scoop itself must add .2 to the equation and dont even get me started with that bulbouse front end
the hood scoop itself must add .2 to the equation and dont even get me started with that bulbouse front end
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Originally Posted by KnifeEdge_2K1
there is no way the sti can have a lower cd then the evo 8 or mr
the hood scoop itself must add .2 to the equation and dont even get me started with that bulbouse front end
the hood scoop itself must add .2 to the equation and dont even get me started with that bulbouse front end
just to add a note as a compairison (taken off a website):
"The drag coefficient is a number that describes a characteristic amount of aerodynamic drag caused by fluid flow, used in the drag equation. Different objects with the same drag coefficient will behave in similar ways, after scaling for differences in size.
A cylinder is given a default drag coefficient of one. That means that two cylinders of the same size will have the same drag, one twice as large will have twice the drag. Less streamlined shapes will have higher values, while smoother shapes will have lower values.
Automobile Aerodynamics
The drag coefficient ("Cd") is a common metric in automotive design, where designers strive to achieve the lowest possible drag coefficient, and thus lowest possible drag.
This is done to improve fuel economy at highway speeds, where aerodynamic effects represent a substantial fraction of the energy needed to keep the car moving. It is also a factor in sports car design, where low drag, coupled with reduced lift, results in a car which can achieve stability and high top speeds.
The typical modern automobile achieves a drag coefficient of between 0.30 and 0.35. SUV's, with their larger, flatter shapes, typically achieve a Cd of 0.35-0.45. Sports cars can achieve figures of 0.25-0.30, although sometimes designers deliberately compromise drag, in favor of reducing lift."
A cylinder is given a default drag coefficient of one. That means that two cylinders of the same size will have the same drag, one twice as large will have twice the drag. Less streamlined shapes will have higher values, while smoother shapes will have lower values.
Automobile Aerodynamics
The drag coefficient ("Cd") is a common metric in automotive design, where designers strive to achieve the lowest possible drag coefficient, and thus lowest possible drag.
This is done to improve fuel economy at highway speeds, where aerodynamic effects represent a substantial fraction of the energy needed to keep the car moving. It is also a factor in sports car design, where low drag, coupled with reduced lift, results in a car which can achieve stability and high top speeds.
The typical modern automobile achieves a drag coefficient of between 0.30 and 0.35. SUV's, with their larger, flatter shapes, typically achieve a Cd of 0.35-0.45. Sports cars can achieve figures of 0.25-0.30, although sometimes designers deliberately compromise drag, in favor of reducing lift."
Last edited by 1QWKEVO; Aug 22, 2004 at 04:22 PM.