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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 02-06-2017, 01:49 PM   #1 (permalink)
PSmodder lurker
 
Join Date: Jan 2009
Location: Chino
Posts: 1,605
Thanks: 26
Thanked 908 Times in 522 Posts
AeroWagen

The Callaway AeroWagen Package for the Chevrolet Corvette C7 coupe, if you want your 'Vette bring the groceries home. Aftermarket carbon fiber parts to increase your carrying capacity and supposedly created better aero numbers. It lowered the overall drag coefficient!

http://www.callawaycars.com/homepage...wagen-package/


  Reply With Quote
The Following 3 Users Say Thank You to botsapper For This Useful Post:
aerohead (02-11-2017), BamZipPow (02-06-2017), mcrews (02-19-2017)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 02-06-2017, 01:52 PM   #2 (permalink)
Master EcoModder
 
Stubby79's Avatar
 
Join Date: Sep 2012
Location: Victoria, BC
Posts: 1,747

Firefly EV - '98 Pontiac Firefly EV
90 day: 107.65 mpg (US)

Little Boy Blue - '05 Toyota Echo
90 day: 33.35 mpg (US)

BlueZ - '19 Nissan 370Z Sport
90 day: 17.19 mpg (US)
Thanks: 75
Thanked 576 Times in 426 Posts
That looks pretty good to me!

Too bad it doesn't transform a cheap car in to a good looking one. Don't think I'd wanna mess up a real 'vette.
  Reply With Quote
Old 02-06-2017, 03:42 PM   #3 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,158
Thanks: 120
Thanked 2,790 Times in 1,959 Posts
Quote:
Originally Posted by botsapper View Post
........if you want your 'Vette bring the groceries home.........
I don't know with all those options there would be much left for groceries.

I suspect someone is going to do the math on how long it takes for it to pay for it's self with gas savings.

Not sure if it would be measured in decades or centuries, but I'd imagine it being a very long time.
__________________
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
Old 02-06-2017, 10:00 PM   #4 (permalink)
It's all about Diesel
 
cRiPpLe_rOoStEr's Avatar
 
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,548
Thanks: 0
Thanked 1,622 Times in 1,447 Posts
I don't believe it's going to be targeted as an efficiency-improvement feature, but it still does look nice.
  Reply With Quote
Old 02-06-2017, 11:12 PM   #5 (permalink)
Moderator
 
Vman455's Avatar
 
Join Date: Feb 2012
Location: Urbana, IL
Posts: 1,935

Pope Pious the Prius - '13 Toyota Prius Two
Team Toyota
SUV
90 day: 51.62 mpg (US)

Tycho the Truck - '91 Toyota Pickup DLX 4WD
90 day: 22.22 mpg (US)
Thanks: 198
Thanked 1,797 Times in 937 Posts
Quote:
9. What is the drag coefficient of the AeroWagen?
A slight reduction in overall drag coefficient is predicted.
Color me skeptical...and at $15,000/$19,000 painted/$21,000 with the little roof spoiler....
__________________
UIUC Aerospace Engineering
www.amateuraerodynamics.com
  Reply With Quote
Old 02-07-2017, 07:45 AM   #6 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,158
Thanks: 120
Thanked 2,790 Times in 1,959 Posts
Part of me has to love this project.

Taking an impractical car, modifying at impractical cost, to end up at practicality.

What I really like about it is the same thing I liked about the Ferrari FF. It illustrates a true shape a sports car could be when a lower Cd is the objective. Yea, I loved to hate the Ferrari FF but it had it's merits.

2015 Ferrari FF Cool Wallpapers 10389 - Grivu.com


Callaway AeroWagen: Shooting brake op Corvette-basis | Autovisie.nl



Somebody should put the Aero-template to these last two images, is there an improvement?


Quote:
9. What is the drag coefficient of the AeroWagen?
A slight reduction in overall drag coefficient is predicted.
http://www.carscoops.com/2016/04/rem...-callaway.html
__________________
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

Last edited by kach22i; 02-07-2017 at 07:57 AM..
  Reply With Quote
The Following 3 Users Say Thank You to kach22i For This Useful Post:
aerohead (02-11-2017), BamZipPow (02-07-2017), mcrews (02-19-2017)
Old 02-07-2017, 08:13 AM   #7 (permalink)
Master EcoModder
 
Stubby79's Avatar
 
Join Date: Sep 2012
Location: Victoria, BC
Posts: 1,747

Firefly EV - '98 Pontiac Firefly EV
90 day: 107.65 mpg (US)

Little Boy Blue - '05 Toyota Echo
90 day: 33.35 mpg (US)

BlueZ - '19 Nissan 370Z Sport
90 day: 17.19 mpg (US)
Thanks: 75
Thanked 576 Times in 426 Posts
It's too shallow, imo.
  Reply With Quote
Old 02-07-2017, 09:07 AM   #8 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,158
Thanks: 120
Thanked 2,790 Times in 1,959 Posts
Quote:
Originally Posted by Stubby79 View Post
It's too shallow, imo.
It's too shallow to fit the Aerotemplate perhaps.

However give consideration to "long body aerodynamics" which may override.

Recall that the template is optimized for minimized surface area or maximum volume.

The more slender you go, typically the lower Cd, that is until skin friction begins to get detrimental. This is still a short body relatively speaking, any elongation should help lower the Cd in my opinion, but will admit I could be wrong. Only the proper testing can verify, right?

http://ecomodder.com/forum/showthrea...n-32407-2.html


It is okay to go longer than the Aerotemplate, better than going shorter to say the least. Just look at the middle image above with the asterisk, this is pretty much our template shape.
__________________
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

Last edited by kach22i; 02-07-2017 at 09:16 AM..
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
aerohead (02-11-2017)
Old 02-07-2017, 09:31 AM   #9 (permalink)
Master EcoModder
 
Stubby79's Avatar
 
Join Date: Sep 2012
Location: Victoria, BC
Posts: 1,747

Firefly EV - '98 Pontiac Firefly EV
90 day: 107.65 mpg (US)

Little Boy Blue - '05 Toyota Echo
90 day: 33.35 mpg (US)

BlueZ - '19 Nissan 370Z Sport
90 day: 17.19 mpg (US)
Thanks: 75
Thanked 576 Times in 426 Posts
I would think the larger rear area of the back would cause more drag than is lost by decreasing the slope of the roof line. You want to minimize said area as much as you can without exceeding a certain slope. Heck, it might be better to exceed it a little if the result was a noticeably smaller back area.
  Reply With Quote
Old 02-07-2017, 10:22 AM   #10 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,158
Thanks: 120
Thanked 2,790 Times in 1,959 Posts
Quote:
Originally Posted by Stubby79 View Post
I would think the larger rear area of the back would cause more drag than is lost by decreasing the slope of the roof line. You want to minimize said area as much as you can without exceeding a certain slope. Heck, it might be better to exceed it a little if the result was a noticeably smaller back area.
Interesting points, lots to think about. The whole in the air the body leaves is important, but so are the air vectors releasing from the body.

Would the Corvette be part of the Bluff Body family? It certainly is not teardrop shaped beyond the canopy.

Some of the reoccurring issues we have in the forum is that only the side view gets compared to the template, no part of the top view is included, and little other 3D analysis.

I could do a template overlay on the stock and AeroWagen version, and include both side profile and top views, I could even attempt to toss in a cross section at the 3/4 mark.

However I'm not convinced it would prove much, and that full scale testing is the only alternative when splitting hairs as fine as this.

EDIT:

The difference between "b" and "c" is a surprise to me.

http://alfa-img.com/show/lift-coeffi...of-shapes.html


There is a chart floating around the forum which shows Bluff Body lengths or perhaps Semi-Truck lengths with small differences in relation to Cd. If I stumble across it in the next few days I will post it here.

__________________
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

Last edited by kach22i; 02-07-2017 at 10:48 AM..
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
aerohead (02-11-2017)
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com