Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Describing my Beetle wing (VW New Beetle)

aerohead · 10-17-2009, 03:02 PM

Ernie,from Kelley and Holcombe's SAE paper of 1963,which established a relationship between drag and mpg,and using your baseline of 58-mpg at 60 mph.For 61 mpg,I get Cd 0.34 and at 65.5 mpg,I get Cd 0.28 for your New Beetle.
Off hand,I can't remember what the Herrod Helper did for the original Beetle back in the 1970s,but your wing is a massive improvement over that wing and it's been fun for years now,to know you've been out there getting these great numbers!
She looks like a production piece too,and probably garners a lot of attention from other VW owners.
Thanks for doing it and sharing the build info.It sets a great bar for the rest of us to work towards.

10-17-2009, 03:02 PM	#14 (permalink)
aerohead Master EcoModder Join Date: Jan 2008 Location: Sanger,Texas,U.S.A. Posts: 16,272 Thanks: 24,394 Thanked 7,363 Times in 4,763 Posts	wing Ernie,from Kelley and Holcombe's SAE paper of 1963,which established a relationship between drag and mpg,and using your baseline of 58-mpg at 60 mph.For 61 mpg,I get Cd 0.34 and at 65.5 mpg,I get Cd 0.28 for your New Beetle. Off hand,I can't remember what the Herrod Helper did for the original Beetle back in the 1970s,but your wing is a massive improvement over that wing and it's been fun for years now,to know you've been out there getting these great numbers! She looks like a production piece too,and probably garners a lot of attention from other VW owners. Thanks for doing it and sharing the build info.It sets a great bar for the rest of us to work towards.