Go Back   EcoModder Forum > EcoModding > Aerodynamics
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 08-26-2017, 02:04 PM   #1 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 8,367
Thanks: 10,260
Thanked 4,399 Times in 2,441 Posts
Spirit of EcoModder shape drag comparison

Had hoped to have had this pulled together long ago as well.
This list represents vehicles which share the same shape drag as Spirit,as of 2014,based upon the DARKO Technologies wind tunnel test results.
If given the same frontal area,they would be indistinguishable from one another,as far as the atmosphere is concerned.
*1934 DeSoto Airflow aerodynamic test mule,minus the tail stinger
*1939 BMW 328-based,Touring Super Leggera
*1953 Panhard Dyna sedan
*1975 Nissan AD-1 concept
*1980 Medusa concept,ItalDesign
*1981 NASA Ford Econoline aerodynamic test mule with all-rounded edges and full belly pan
*1986 Brabus Autosports' Mercedes-Benz W124-Series with aero kit
*1988 Dimensione Design PPG 4X4
*1989 OPEL Calibra 16-V
*2011 Nissan GT-R (R35)
*2011 Buick Regal
*2011 Audi A6/S6 Quattro
*2011 OPEL Insignia
*2011 Audi A8
*2012 KIA Optima Hybrid
*2012 BMW 3-Series
*2013 Lexus GS
*2013 Mitsubishi CA-MiEV concept
*2014 Toyota Prius
*2014 BMW i8
*2014 Spirit of Ecomodder
*2014 Infiniti Q50
*2015 Hyundai Genesis
*2016 Mazda-6
*2016Jaguar F-Type
*2016 BMW 340
*2016 Jaguar XF
With a March 1974 copy of CAR and DRIVER and some perspicacity,one could embark on 43-years of streamlining mischief!

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
The Following 2 Users Say Thank You to aerohead For This Useful Post:
BamZipPow (08-26-2017), Grant-53 (08-26-2017)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 08-26-2017, 02:39 PM   #2 (permalink)
Master EcoModder
 
Join Date: Feb 2010
Location: Elmira, NY
Posts: 1,464
Thanks: 211
Thanked 241 Times in 203 Posts
The old [I]Sports Car Graphic[I] magazine gave drag in lbs calculated at 100 mph in their road tests in the 1970's. Joseph Katz also lists Cd for a number of passenger cars.
  Reply With Quote
The Following User Says Thank You to Grant-53 For This Useful Post:
aerohead (08-26-2017)
Old 08-26-2017, 03:32 PM   #3 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 8,367
Thanks: 10,260
Thanked 4,399 Times in 2,441 Posts
Sports Car Graphic

Quote:
Originally Posted by Grant-53 View Post
The old [I]Sports Car Graphic[I] magazine gave drag in lbs calculated at 100 mph in their road tests in the 1970's. Joseph Katz also lists Cd for a number of passenger cars.
Lucky you!
CAR and DRIVER,linear descendant of SCG, refers to them every once in awhile.I've never seen a copy before.And every time I hit the swap meets,I look for them.'never know!
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 08-26-2017, 05:05 PM   #4 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 8,367
Thanks: 10,260
Thanked 4,399 Times in 2,441 Posts
R&T

Quote:
Originally Posted by Old Tele man View Post
Do you have a copy of the August 1982 ROAD & TRACK issue 'AERO Feature' article: "Seeking Light at the End of the Tunnel," by Dennis Simmanaitis, subtitled: "My Cx is lower than your; or is it?"
Yes,I was 'looking' when that one was circulating.It's a very good article and was one that fed my my interest in aero,in a world which otherwise didn't seem to really care.
And every now and then I'll run across 'books' which are compilations of Road & Track road test reviews.
And R&T remain one of the few rags which will report Cd,frontal area,CdA.Not always,but I'll settle for any table crumbs which fall my way.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 09-07-2017, 09:33 AM   #5 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 2,535
Thanks: 3
Thanked 1,549 Times in 1,094 Posts
Quote:
Originally Posted by aerohead View Post
Had hoped to have had this pulled together long ago as well.

This list represents vehicles which share the same shape drag as Spirit,as of 2014, based upon the DARKO Technologies wind tunnel test results.
Please provide a link to the 2014 version of your truck Phil.

All I could quickly find was this 2012 information quoted below.

Pickup truck aerodynamics
Quote:
Originally Posted by aerohead View Post
Just a quickie,based on T-100/Dodge research
*Flatbed --------------------------------------- Cd 0.668
*Suburban type roof (Lear cap)------------------ Cd 0.39
*Pickup bed (open)------------------------------Cd 0.44
*Full tonneau ---------------------------------- Cd 0.415
*GM' Half-tonneau ------------------------------Cd 0.357
*Texas Tech (GM) Aero Shell ------------------- Cd 0.352
*ITworks double-geometry shell ---------------- Cd 0.325
*Spirit of Ecomodder.com----------------------- Cd 0.268-0.267
*Spirit of Ecomodder.com with folded mirrors----- Cd 0.251
*Spirit of Ecomodder.com with mirror delete (est.) Cd 0.24
*Complete boat-tail on custom truck box--------- Cd 0.12?
--------------------------------------------------------------------------
What Cd number does your opening list all match?
__________________
George
Architect, Artist and Designer of Objects

1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

Chin Spoiler:
http://forums.pelicanparts.com/off-t...effective.html

Rear Spoiler Pick Up Truck
http://forums.pelicanparts.com/off-t...xperiment.html

Roof Wing
http://ecomodder.com/forum/showthrea...1-a-19525.html
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
aerohead (09-09-2017)
Old 09-09-2017, 01:45 PM   #6 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 8,367
Thanks: 10,260
Thanked 4,399 Times in 2,441 Posts
2014

Quote:
Originally Posted by kach22i View Post
Please provide a link to the 2014 version of your truck Phil.

All I could quickly find was this 2012 information quoted below.

Pickup truck aerodynamics


What Cd number does your opening list all match?
All the vehicles are in the Cd 0.26 range.Some were provided with 'counts',most not.
The Spirit of Ecomodder thread should have the data from DARKO.
There is the possibility that,if measured at the A2 Tunnel,Spirit would have recorded Cd 0.244 with mirrors.Cd 0.219 without.
The fuel economy is better than what Cd 0.2675 average would predict,but I had rubber gearing,passenger car tires,and syn-lube.So that might help explain the higher numbers,And the higher top speed.
I'd like to go to North Carolina and check the Cd there.

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com