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Air resistance

758 Views 28 Replies 15 Participants Last post by  garyk
This may be a nerdy question but does anyone know the coefficient of drag for a focus ZX3. I'm interested and i've found numbers ranging from .32 to .36.
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Wagon = 0.30
Sedan = 0.31
Hatch = 0.36
so i shoulda built a race wagon joe?
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Thats a different debate. Drag resistence vs polar momentium.
why are you bringing polar bears into the discussion? i get so confused by engineers
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3
No he's talking about the way the earth's magnetic poles move around. Damn engineers.

Ok smart guys: What is the total frontal area of a Focus?
wow it goes from wagon being very good to hatchback being no so hot. What the ?

Why does the ugly car have the best air resistance.
The wagon is a nice long, sleek, smooth design. The problem with the hatch is that it generates a lot of turbulence behind the car. It's difficult to keep the air properly attached to the car. If you look at bonneville cars and speed record cars you can see what i'm talking about.
Anything that can be done to a sedan (or any foci for that matter) to significantly change that number? Say, a different hood? Different, or no rear spoiler? Different shaped trunk lid?
Two words.
Wheel Skirts.




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Two words.
Wheel Skirts.
Two more:



"Moon Caps."

...and note body style. Old news, but:

San Diego, August 17, 2000 – JBA and its 2001 Ford Focus set a new land speed record for G-Production vehicles when it averaged 141.803 mph at the Bonneville Salt Flats in Utah.
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I saw some of the wind-tunnel simulations that were in here a while back, and it seems that a well-designed spoiler could improve the hatch's aerodynamics. The difference between its drag coefficient and the wagon's is in the way air eddies over the rear window and causes lift. I'm sure some well-designed fiberglass or aluminum could help that.
moon caps... great for reducing drag... bad for brake cooling.

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lol, on the fact of the way the air goes off the end of the hatchback maybe the svt's larger lipped spoiler helps aerodyanmics???
The wagon is a nice long, sleek, smooth design. The problem with the hatch is that it generates a lot of turbulence behind the car. It's difficult to keep the air properly attached to the car. If you look at bonneville cars and speed record cars you can see what i'm talking about.
funny..miatas love to use me as a drafting vehicle
funny..miatas love to use me as a drafting vehicle
Sure - to them, it must be like tucking in behind an 18-wheeler on the highway. Big-assed hole in the air, I'm sure.
"Sure - to them, it must be like tucking in behind an 18-wheeler on the highway. Big-assed hole in the air, I'm sure. "

There's something big-assed there, but I'm not sure it's the car....

--------------------------

Desperately searching for a drafting partner for my Miata.
go away....
you guys are bad lol
you guys are bad lol
moi???
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