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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-18-2008, 01:27 PM   #11 (permalink)
EcoMod Wannabe
 
Sean T.'s Avatar
 
Join Date: Apr 2008
Location: Lake Orion, MI
Posts: 448

Taurusaurus Rex - '97 Ford Taurus GL (Sedan)
90 day: 19.39 mpg (US)

Blue Wagon - '00 Ford Taurus Wagon SE Comfort
90 day: 19.61 mpg (US)
Thanks: 6
Thanked 18 Times in 11 Posts
My tires are rated 35 psi, and they are all at 37 right now... should I go higher?

__________________
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 06-18-2008, 02:23 PM   #12 (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 2,586 Times in 1,554 Posts
Its really up to you. Try out a higher pressure and see if it works for you. If you feel uncomfortable with it that high bring them back down. Personally, I would bring them up to around 45. My winter tires are rated for 35 max sidewall and I ran them at 45 or 50 (can't remember) all winter long. They still look brand new with very little wear and what wear there is is nice and even.
__________________
Current project: A better alternator delete
  Reply With Quote
Old 06-18-2008, 07:06 PM   #13 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,515

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.71 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 52.48 mpg (US)
Thanks: 4,062
Thanked 6,960 Times in 3,604 Posts
Cd: I'd never seen that UC Davis aero Taurus before - thanks for posting!
__________________
Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
Old 06-18-2008, 10:09 PM   #14 (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
Quote:
Originally Posted by MetroMPG View Post
Cd: I'd never seen that UC Davis aero Taurus before - thanks for posting!
I would have posted it before but I assumed everyone was familiar with the car.

Much to my surprise ( and discouragement ) the car only got down to like .27 .Cd despite a complete redesign of the front end, a full belly pan, camera mirrors ,side skirts, and a partially 'Kammed' tail end.

This was after a ton of work on the car.
As we have seen, .27 is an easy number to achieve. ( I'm thinking of AndrewJ here )

They must have done something wrong somewhere, because I can't imagine that car as having a .27 ish .Cd

Did you happen to read the .pdf ?

One thing that I found interesting was the idea of using a hollow cavity to pull in the wake.

One more thing : The UCDavis team is amazing. Professor Any Frank has been building hybrids for decades.
He is also a really nice guy too. I remember talking to him by phone.
Just imagine - a small group of kids in a mechanical engineering class have been doing for years what the 'big three' have always said can't be done.
I'm proud of what they have accomplished.

Last edited by Cd; 06-18-2008 at 10:25 PM..
  Reply With Quote
Old 06-18-2008, 10:17 PM   #15 (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
By the way, I have a model of your car. If you know someone that does CFD flow testing, it is an easy way to mock up changes to a car design.

  Reply With Quote
Old 06-18-2008, 11:15 PM   #16 (permalink)
EcoMod Wannabe
 
Sean T.'s Avatar
 
Join Date: Apr 2008
Location: Lake Orion, MI
Posts: 448

Taurusaurus Rex - '97 Ford Taurus GL (Sedan)
90 day: 19.39 mpg (US)

Blue Wagon - '00 Ford Taurus Wagon SE Comfort
90 day: 19.61 mpg (US)
Thanks: 6
Thanked 18 Times in 11 Posts
Quote:
Originally Posted by .Cd View Post
By the way, I have a model of your car. If you know someone that does CFD flow testing, it is an easy way to mock up changes to a car design.

wow! That's pretty cool! what program is used to view something like that? Is it CAD?
__________________
  Reply With Quote
Old 06-19-2008, 01:11 PM   #17 (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
Download Blender 3D for free. ( It's every bit as good as the 'professional' stuff.)

http://www.blender.org/download/get-blender/

PM me if you want the file.
  Reply With Quote
Old 06-20-2008, 07:53 AM   #18 (permalink)
Master EcoModder
 
Join Date: May 2008
Location: Auburn, NH
Posts: 451

Wicked Wanda - '99 VW Beetle GLS
90 day: 29.59 mpg (US)

Green Monster - '99 Ford Explorer Sport
90 day: 16.73 mpg (US)

Dad's Taxi - '99 Honda Odyssey EX
90 day: 24.23 mpg (US)
Thanks: 0
Thanked 2 Times in 2 Posts
Quote:
Originally Posted by .Cd View Post
Did you follow the link ( within the link ) ?

http://www.team-fate.net/technical/1997TechReport.pdf

They even did tuft testing.
After looking at the mods they made to the front I wonder if they would have been better served with an air dam on the front. It seems to me that nose is forcing a lot of air under the car, where there remains a fair amount of turbulance.
__________________
  Reply With Quote
Old 06-20-2008, 09:24 AM   #19 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,515

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.71 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 52.48 mpg (US)
Thanks: 4,062
Thanked 6,960 Times in 3,604 Posts
They directed some air under the nose on purpose since that's where they relocated the radiator.

Cd: that tidbit about the cavity in the tail caught my attention too. Very interesting.
__________________
Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
Old 06-21-2008, 12:07 AM   #20 (permalink)
EcoMod Wannabe
 
Sean T.'s Avatar
 
Join Date: Apr 2008
Location: Lake Orion, MI
Posts: 448

Taurusaurus Rex - '97 Ford Taurus GL (Sedan)
90 day: 19.39 mpg (US)

Blue Wagon - '00 Ford Taurus Wagon SE Comfort
90 day: 19.61 mpg (US)
Thanks: 6
Thanked 18 Times in 11 Posts
I was at another SCCA event tonight, and confirmed that changing the ride height puts me directly to the modified class, along with cars that have high levels of modification to the engine, wheels, tires, etc. So changing the ride height is a definite no.

They also confirmed that if I alter the interior for weight reduction, I will be automatically bumped up the the modified category as well. I would be able to take my rear seat out because it is easy to put back in for events, but that's about all I can do for weight reduction.

Even exterior mods are questionable... even though it is an autocross course and aerodynamics don't give an advantage, some could argue that ANY aerodynamic modifications are classified as "exterior body mods" and bump me up the the same category as the other two examples above.


__________________
  Reply With Quote
Reply  Post New Thread




Similar Threads
Thread Thread Starter Forum Replies Last Post
Think you can hypermile? Ford contest will give the winner a car * MetroMPG Hypermiling / EcoDriver's Ed 6 08-04-2010 08:31 PM
Some nice Photoshop pics of aeromods from a Ford Taurus forum MetroMPG Aerodynamics 11 10-09-2008 03:16 AM
Ford, making money? It must be a mistake... SVOboy General Efficiency Discussion 3 04-28-2008 09:28 PM
98 Ford Taurus 4dr Sedan- where do I start? rykoala Introductions 11 01-19-2008 11:12 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