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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 05-20-2008, 10:04 PM   #31 (permalink)
Cd
Ultimate Fail
 
Cd's Avatar
 
Join Date: Feb 2008
Location: Austin,Texas
Posts: 3,585
Thanks: 2,872
Thanked 1,121 Times in 679 Posts
What about the height of the lights themselves ?

I was thinking of lowering my car and found out that I could be ticketed because they must be so many inches above the ground to be legal. ( I seem to remember 24 " or so ... it's been a while. )

That 240Z looks a lot like the Z I had. It's hard for me to see how such a sleek looking car like that could be such a turd to the wind. ( something like .46 .Cd )

I remember I could let off of the gas and the car would come to a stop in just a few hundred feet. Now I know why.

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 05-21-2008, 02:15 AM   #32 (permalink)
Veggiedynamics
 
Join Date: May 2008
Location: Alexandria, MN
Posts: 684

Volt12 - '12 Chevy Volt base
Thanks: 0
Thanked 12 Times in 10 Posts
they will be the stock height, I'm not even moving them from the stock location they will just have a cover over them for aerodynamics..
__________________

  Reply With Quote
Old 05-21-2008, 11:25 PM   #33 (permalink)
Veggiedynamics
 
Join Date: May 2008
Location: Alexandria, MN
Posts: 684

Volt12 - '12 Chevy Volt base
Thanks: 0
Thanked 12 Times in 10 Posts
Well toiday i put some foam on and started to see how it well would shape.. definatly works well, need to stock up on some foam now..

New photos soon
__________________

  Reply With Quote
Old 05-22-2008, 06:07 PM   #34 (permalink)
EcoModding Apprentice
 
Join Date: Apr 2008
Location: So. IN.
Posts: 188

Blue - '77 Chevy P/U
Thanks: 0
Thanked 1 Time in 1 Post
Quote:
Originally Posted by ebacherville View Post
Well toiday i put some foam on and started to see how it well would shape.. definatly works well, need to stock up on some foam now..

New photos soon
  Reply With Quote
Old 05-23-2008, 12:02 AM   #35 (permalink)
Veggiedynamics
 
Join Date: May 2008
Location: Alexandria, MN
Posts: 684

Volt12 - '12 Chevy Volt base
Thanks: 0
Thanked 12 Times in 10 Posts
cut out part of the headlight holes tonight.. and did some more foam work.. hoping to make lots of progress this weekend.. but the foam and sanding etc is a slow process , the foam takes 8+ hours to cure ..

I also have to relocate the blinkers from the bumper to the new nose.. no big deal but has to be done to stay legal..
__________________

  Reply With Quote
Old 05-23-2008, 10:20 AM   #36 (permalink)
EV test pilot
 
bennelson's Avatar
 
Join Date: Jan 2008
Location: Oconomowoc, WI, USA
Posts: 4,435

Electric Cycle - '81 Kawasaki KZ440
90 day: 334.6 mpg (US)

S10 - '95 Chevy S10
90 day: 30.48 mpg (US)

Electro-Metro - '96 Ben Nelson's "Electro-Metro"
90 day: 129.81 mpg (US)

The Wife's Car - Plug-in Prius - '04 Toyota Prius
90 day: 78.16 mpg (US)
Thanks: 17
Thanked 663 Times in 388 Posts
What kind of foam are you working with?

Are you using a spray foam, such as "Great Stuff"?

It can be a great filler material, as long as it is covered with a protective material, such as your fiberglass or paint.

Just don't get Great Stuff on your clothes. Found that one out when I built my camper!
__________________


300mpg.org Learn how to BUILD YOUR OWN ELECTRIC CAR CHEAP
My YouTube Videos
  Reply With Quote
Old 05-23-2008, 11:00 AM   #37 (permalink)
Hypermiler
 
PaleMelanesian's Avatar
 
Join Date: Dec 2007
Location: Texas
Posts: 2,321

PaleCivic (retired) - '96 Honda Civic DX Sedan
90 day: 69.2 mpg (US)

PaleFit - '09 Honda Fit Sport
Team Honda
Wagons
90 day: 44.06 mpg (US)
Thanks: 611
Thanked 434 Times in 284 Posts
While it's still curing, you can use acetone to cut Great Stuff. Once it's cured... too late!
__________________



11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
  Reply With Quote
Old 05-23-2008, 12:58 PM   #38 (permalink)
is awesome
 
Join Date: Apr 2008
Location: Kansas City
Posts: 56
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by .Cd View Post
That 240Z looks a lot like the Z I had. It's hard for me to see how such a sleek looking car like that could be such a turd to the wind. ( something like .46 .Cd )
After some wind tunnel testing, another forum I'm on got the .Cd down to .395, lol.



Fortunately, because of the small size (18.5 ft^2), the .CdA is less than a civic!
http://en.wikipedia.org/wiki/Automob...g_coefficients
__________________
KU School of Engineering
'72 Datsun 240z
'96 Chevy lumina

Last edited by ihatejoefitz; 05-23-2008 at 01:03 PM..
  Reply With Quote
Old 05-23-2008, 01:24 PM   #39 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,203

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)

Daox's Volt - '13 Chevrolet Volt
Thanks: 2,501
Thanked 2,587 Times in 1,554 Posts
Thats the CdA of a 240SX, not a 240Z.

A 240Z would be 18.5ft^2 x .395 = 7.31

Probably not less than a Civic, but not too far from it.
__________________
Current project: A better alternator delete
  Reply With Quote
Old 05-23-2008, 02:22 PM   #40 (permalink)
is awesome
 
Join Date: Apr 2008
Location: Kansas City
Posts: 56
Thanks: 0
Thanked 0 Times in 0 Posts
7.34 2001 Honda Civic > 7.31 Datsun 240z

I got my data for the civic from the wiki link. The data for the z came from wind tunnel testing.

__________________
KU School of Engineering
'72 Datsun 240z
'96 Chevy lumina
  Reply With Quote
Reply  Post New Thread




Similar Threads
Thread Thread Starter Forum Replies Last Post
Electric car conversion: Project ForkenSwift MetroMPG Fossil Fuel Free 1051 11-22-2024 01:02 PM
crx hf help need more info, rear wheel skirts RP-CLMBR Aerodynamics 2 07-16-2008 10:24 PM
Repping the old school Hondas - 85 CRX HF 1GCRXHF Introductions 4 06-16-2008 02:14 PM
New to the forum, with my RX-7 EV Project... BigMouse Fossil Fuel Free 14 02-28-2008 05:14 PM
AFS Trinity EXTREME Hybrids!!! cfg83 General Efficiency Discussion 10 01-18-2008 08:15 PM



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