Fuelly Forums

Fuelly Forums (https://www.fuelly.com/forums/)
-   Aerodynamics (https://www.fuelly.com/forums/f14/)
-   -   Looks can be deceiving (https://www.fuelly.com/forums/f14/looks-can-be-deceiving-3455.html)

MetroMPG 12-11-2006 05:49 AM

.36 seems more realistic.

onegammyleg 12-11-2006 05:53 AM

yeah , .36 is still amazingly good for that era..

The model 87 was suposedly a little worse than the 77a , but ime wondering if the wiki figure was in error.
Has anyone found a reliable figure for the 77 apart from wiki ??

onegammyleg 12-11-2006 06:01 AM

This model vw keeps coming into my mind for potential FE mod car....

https://coastcruiser.skyblog.com/pics...3895_small.jpg

..but with a modern efi engine.
Best part is that it allows almost any body (aero) modification legally.

MetroMPG 12-11-2006 06:14 AM

Unfortunately, that VW type 3 looks to have about the worst possible rear rake. According to Barnard, the highest drag is associated with rake angles around 30 degrees (from horizontal).

onegammyleg 12-11-2006 06:30 AM

Quote:

Originally Posted by MetroMPG
Unfortunately, that VW type 3 looks to have about the worst possible rear rake.

Thats Ok , cut and paste.
https://www.geocities.com/onegammyleg...0_Typtback.JPG
with larger front window layed back and modified roof section
https://www.geocities.com/onegammyleg...3_Fastback.JPG
with 2 inch sectioning and lowering.
https://www.geocities.com/onegammyleg...3_Fastback.JPG
Almost looks like a sports car now.

MetroMPG 12-11-2006 01:41 PM

If the wacky Cd figure came from wikipedia, I wouldn't be surprised.

I corrected a wrong entry there for the Cd of the Audi A2, which someone had listed as .24. (Its lowest model was .25 - info I got from Audi's corporate site. Same Cd as the Insight).

red91sit 12-11-2006 04:43 PM

4 Attachment(s)
I still like the idea of turning a Plymouth Breeze, Dodge Stratus, Chysler Cirrus, into a more economical car. They start off with real good c/d .31. I'm thinking a little work woudl drop the cd nicely
https://memimage.cardomain.net/member...2056966_34.jpg
.01 Lowered 1-2 inches
.005 Front Dam smoothened and smaller grilll opening
.01 Smooth Underbody
.005 Partailly covered rear wheels and smooth hubcaps
.01 Mirror removal

Capow! if you could get these good of numbers, It'd drop to around .27! Now you just have to deal with the poopy motor.
https://memimage.cardomain.net/member...2056966_33.jpg

My parents own one of these cars which i "MIGHT" get for graduation, otherwise they're very cheap, cuz well they're really nothing special.

Peakster 12-11-2006 09:09 PM

4 Attachment(s)
Check out this vehicle:
Attachment 76

Attachment 77

It's a Renault Vesta 2 research vehicle and it has a Cd of only 0.186! Note how the back end is totally sliced off. Sources say that it used 1.94 litres/100km (121 US miles per gallon) for 500km trip with an average speed of 100km/h!

onegammyleg 12-11-2006 11:51 PM

Quote:

Originally Posted by theclencher
Am I going to have to go verify the Cd on this???

I found this on a french page..
?A prototype named Renault Vesta II is with 3.5 l/100 km expenditure-comes.?

from what I read that 1 point whatever per hundred was a one off freak figure., and 3.5 was its long term figure. -- which is nothing truly amazing.

onegammyleg 12-12-2006 12:30 AM

3.5 = 67mpg , so 1.9 = 110mpg (roughly)


All times are GMT -8. The time now is 01:16 PM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.