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Join Date: May 2005
Posts: 21
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Coefficent of Drag
So a friend of mine and myself have been bench racing about what a 914/4, a 912E and a Karmann Ghia with a type IV conversion would be like, and the advantages of each (hey, what else do we do when we can't work on our cars?). We've been able to find pretty much all the specs we wanted except the coefficient of drag for each of these vehicles. Anybody know what these numbers are, or could you give me some ideas as to where to look for them? Thanks for any info; not really a life threatening question but I'm curious anyway
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09-29-2005, 07:15 PM
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From an old, old, note on this very bbs:Coeff. of Drag for a 914?
The search function is your friend.... --DD
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Pelican Parts 914 Tech Support A few pics of my car: http://www.pelicanparts.com/gallery/Dave_Darling |
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09-29-2005, 09:18 PM
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Location: Seattle
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The coefficient of drag for Karmann Ghias is ~ 0.305 for 1955-60 Ghias, ~ 0.31 for the 1961-71 Ghias, and ~ 0.32 for the 1972-74 Ghias.
These numbers are from conversations I had with the long-time president of the KGCNA, and a follow-up series of e-mails with him.
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09-29-2005, 11:14 PM
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Join Date: Mar 1999
Location: Vancouver,Wa.
Posts: 4,457
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Jeeze, that was an oldie
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JPIII Early Boxster |
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09-30-2005, 04:35 PM
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Location: Savannah, Ga.
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AFAIK, 914 have a cd of 300%.
M
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I wish I had a dime for every penny I ever had. http://www.914club.com/bbs2/uploads/blog-1136350347.jpg |
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09-30-2005, 11:06 PM
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Location: Seattle
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Yeah, decimal points are just place-holders anyway..
and there's that pesky "frontal surface area" factor.. lol Miles
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10-01-2005, 09:36 PM
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Join Date: Dec 2000
Posts: 59
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Don't forget lift....
The front end of a Karmann Gooey is rounded in a direction that forces air under the car... My 67 KG convertible had a Z-bar that would add extra spring force to the back end as the front end lifted. I know it got a little "floaty" when I pegged the speedometer and went up another 1000 RPM.. Ken |
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10-02-2005, 07:36 AM
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74 Porsche 914 2.0 
