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[Pop Quiz] What's the biggest aerodynamic feature on our cars?

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Old 10-26-2006, 03:25 PM
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BrianCunningham
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Default [Pop Quiz] What's the biggest aerodynamic feature on our cars?

Year doesn't matter.
Old 10-26-2006, 03:28 PM
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injuner
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Heh, the body?
Old 10-26-2006, 03:59 PM
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69autoXr
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Can you clarify the question a little bit?

Do you mean what causes the most drag (tires perhaps)...or what body feature improves aero flow the most (certainly year or at least gen-specific here).

Last edited by 69autoXr; 10-26-2006 at 04:14 PM.
Old 10-26-2006, 04:01 PM
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AU N EGL
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flat underside.
Old 10-26-2006, 04:15 PM
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69autoXr
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Originally Posted by AU N EGL
flat underside.
...or lack thereof
Old 10-26-2006, 04:21 PM
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Falcon
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Old 10-26-2006, 04:36 PM
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davidfarmer
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the only aerodynamic device is the spoiler underneath that causes air to cool the car. Doesn't help with drag or downforce, but keeps the car from overheating.

Even the new Z06 doesn't have any true aerodynamic benefit, since the nose has an open bottom.
Old 10-26-2006, 05:38 PM
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VetteDrmr
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Open windows?
Old 10-26-2006, 07:05 PM
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ghoffman
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The tires?
Old 10-26-2006, 07:33 PM
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96CollectorSport
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Windshield?
<---- Or my head?
Old 10-26-2006, 07:40 PM
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fmrfast
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Ok Brian,

I am out of ideas. Requiring minds need to know.

Frank
Old 10-26-2006, 07:41 PM
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fmrfast
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Side vents?
Old 10-26-2006, 08:35 PM
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0Randy@DRM
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Kinda flat hood, or rear trunk lid. The radiator deal, which isn't good at all on the new cars.

I don't know what you are asking,
Randy
Old 10-26-2006, 08:37 PM
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TedDBere
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Bsm
Old 10-26-2006, 09:08 PM
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Aardwolf
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Wind shield rake.
Old 10-26-2006, 09:18 PM
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USAsOnlyWay
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Front air dam.
Old 10-26-2006, 09:37 PM
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robvuk
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Originally Posted by TedDBere
Bsm

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Old 10-26-2006, 09:52 PM
  #18  
RedLS6
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The flat vertical rear end helped aerodynamics on the C5 and C6...don't know if this is the biggest feature, though.
Old 10-26-2006, 10:15 PM
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BrianCunningham
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Originally Posted by fmrfast
Ok Brian,

I am out of ideas. Requiring minds need to know.

Frank
It's the roof.


All the other stuff, spoilers etc, are there to make up for the lift generated by the it. Think about the profile of the car, reletively flat on the bottom, with a smooth curved roof that reduced drag, but when you look at the profile it's a WING! Take a look at the smoke trail in the picture. Early prototype cars actually generated so much lift you could turn the wheels lock to lock and not cause any change of direction. Which is also why later prototypes were open cockpit cars, they generate higher drag, but they make more downforce. Convertables are worse, until you cut the windshield down, like on the GrandSport. It also promoted other speedsters as well.


The Shark cars fought this with a rear window that popped out. The air entered through the back and exited through the windows.
Old 10-26-2006, 10:30 PM
  #20  
kelp
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I put some vents in the hood. Also took out the fascia in the side vents, letting out alot of heat. Also put a little wing across the back. Picked up 15 MPH on the front straight at VIR with no twitchiness.


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