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Old 12-30-2013, 10:56 PM   #251 (permalink)
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Wiki shows the height at 53-53.2. The race car would be lowered with lower profile tires also.

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Old 12-31-2013, 08:54 AM   #252 (permalink)
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Okay, that's 28.23 sq ft minus ~15% = 23.99sq ft. Still significantly higher than the 21.8 estimated by Car & Driver. Adding the high wing probably adds a bit less than another sq ft to the frontal area; and wide tires and lowered suspension reduces the 15% factor, so I think their number is too low.
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Old 12-31-2013, 09:11 AM   #253 (permalink)
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A 4" drop gets it right there. I don't know if C&D was measuring a Street version or Track ready car. The one in the video is race ready looking.
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Old 12-31-2013, 01:35 PM   #254 (permalink)
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Changing the ground clearance doesn't change the frontal area very much - only the exposed tires change, and the 15% guesstimate is reduced. The only real way to measure the frontal area is to take a photo with a long lens and scale it accurately and trace it in CAD.
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Old 01-02-2014, 03:48 PM   #255 (permalink)
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Daytona frontal area

Quote:
Originally Posted by NeilBlanchard View Post
That seems too low. The dimensions I find for the street version is 76.4" x 61.4" = 32.57sq ft minus ~15% = 27.68sq ft.
Neil,I have the December,1988 CAR and DRIVER road test here,of the 1969 'civilian' version.C & D give the dimensions as:
*Wheelbase..............................117.0 "
*Length.................................. 226.5 "
*Width..................................... 76.6 "
*Height.................................... 53.2 "
*Frontal area............................ 21.8 " (which would be 77% of the gross area)
*The greenhouse on the Charger is quite narrow compared to the main body section,and with fairly aggressive tumblehome,so,the 77% seems reasonable.
*Marcell and Romberg didn't supply any parametrics on their car other than the 6.5" ground clearance.
*NASCAR allowed the oil pan to be lower.
*And they allowed the exhaust to be even lower.
-------------------------------------------------------------------------
*Usually each year,If I can make the Pate Swap Meet out at Texas Motor Speedway,I'll see a Daytona.They seemed really 'large' to me when I was in high school,but now they seem 'tiny' compared to my memory.
PS The Chrysler Proving Grounds is just outside of Ann Arbor where CAR and DRIVER is headquartered.And I presume that their data was provided directly from Chrysler.They usually mention if they're estimating values.And Csaba Csere,their technical editor at the time is a stickler for accuracy.He's an MIT guy.Very Smart.
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Last edited by aerohead; 01-02-2014 at 03:54 PM.. Reason: add PS
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Old 01-03-2014, 06:54 PM   #256 (permalink)
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Looks like really low speed air flow to me.

Genovation Cars: aerodynamic modeling of a high-efficiency automobile | Maryland Technology Enterprise Institute Blog



Jason Guenzel Pictures - GM Marks Anniversary Of Giant Wind Tunnel At Its Aerodynamics Laboratory - Zimbio



ConceptCar Design Forums • View topic - Newbie with a race car design.

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Old 01-03-2014, 06:58 PM   #257 (permalink)
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Learn and talk about Drafting (aerodynamics), Motorsport terminology, Road bicycle racing terminology


Looks like art?

Concept test // Aerodynamic by Bas Aarts, via Behance ... | Aero



SMONLINE Citron SM aerodynamics


Quote:
The SM's body was developed in the wind tunnel and "sculptured" by the wind. Its steel and glass lines are free from sharp angles and flat surfaces. Designed by the styling division the profile of the SM is not only based on requirements such as air penetration coefficient and frontal area but also lift data resulting in a tapering rear end.
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Old 01-03-2014, 07:11 PM   #258 (permalink)
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Car Aerodynamics


Toyota Windkanal: Eine Seifenkiste braucht keine Spoiler - Paperblog
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Old 01-05-2014, 08:27 PM   #259 (permalink)
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Possible repost, I'm losing track.

Mercedes CLA is the most aerodynamic production car of the world - Automotive technology, innovation and engineering



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Old 01-05-2014, 08:43 PM   #260 (permalink)
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Lexus LFA wind tunnel aerodynamic testing | Planes, Trains & Automobi


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