Improve fuel economy with foils attached to car

General discussion about our beloved Tercel 4WD cars
Post Reply
User avatar
Petros
Highest Ranking Member
Posts: 11188
Joined: Sun Jan 28, 2007 6:31 pm
My tercel:: '84 Tercel4wd w/extensive mods
Location: Arlington WA USA

Improve fuel economy with foils attached to car

Post by Petros » Sun Sep 02, 2012 4:06 pm

Check this out, looks like vortex generators to reduce flow separation, that should reduce drag. kind of pricy, but I might make some and give it a try. works on aircraft, might work on cars too.

http://gaspods.com/gaspod-details.html

4doorVIP
Top Notch Member
Posts: 289
Joined: Sun Aug 29, 2010 9:59 am
My tercel:: 1988 SR5 Wagon
Location: Vancouver Island

Re: Improve fuel economy with foils attached to car

Post by 4doorVIP » Sun Sep 02, 2012 4:39 pm

Ah yes, anyone familiar with the Mitsu Lancer EVO will recognize these.
Image

Here's an article about them:
http://www.mitsubishi-motors.com/corpor ... 16E_03.pdf

danzo
Highest Ranking Member
Posts: 537
Joined: Fri Dec 05, 2008 11:01 am
My tercel:: '86 SR5 6 speed
Location: The Colony, TX

Re: Improve fuel economy with foils attached to car

Post by danzo » Tue Sep 04, 2012 12:05 pm

I always thought the Evos were high-speed storm chasers?!? I bet the car vortex generators are marketed to the democratic crowd who will gobble up any enviro-saving nonsense that comes across their computers. No wonder they are offered in "hey-I'm-saving-the-world" neon colors. Krickey.

speedgraphic
Advanced Member
Posts: 64
Joined: Mon Aug 20, 2012 8:11 am
My tercel:: 1986 Tercel 4WD Wagon, Manual

Re: Improve fuel economy with foils attached to car

Post by speedgraphic » Tue Sep 04, 2012 12:38 pm

danzo wrote:I always thought the Evos were high-speed storm chasers?!? I bet the car vortex generators are marketed to the democratic crowd who will gobble up any enviro-saving nonsense that comes across their computers. No wonder they are offered in "hey-I'm-saving-the-world" neon colors. Krickey.
Not sure what's "democratic" about reducing drag?

Neu
Highest Ranking Member
Posts: 1117
Joined: Tue Nov 06, 2007 7:59 am

Re: Improve fuel economy with foils attached to car

Post by Neu » Tue Sep 04, 2012 2:31 pm

He's talking about american democrats being environmental hippies, which is, in my opinion, a very dumb, bigoted and generalized thing to say. Whatever though. If someone wants to me false generalizations like that let them think what they want, I'd hope they would keep that opinion to themselves though.

-Dont derail this thread though, anymore talk about it will result in a suspension.

User avatar
Petros
Highest Ranking Member
Posts: 11188
Joined: Sun Jan 28, 2007 6:31 pm
My tercel:: '84 Tercel4wd w/extensive mods
Location: Arlington WA USA

Re: Improve fuel economy with foils attached to car

Post by Petros » Tue Sep 04, 2012 3:07 pm

thought I would supply some pictures:

Image

How they are supposed to work:

Image

close up:

Image

they call themselves "podpeople", so it appears they are not democrat or Republican, but alien invaders. :shock:

User avatar
dlb
Highest Ranking Member
Posts: 6518
Joined: Mon Jul 06, 2009 9:03 pm
My tercel:: none currently, 7 previous
Location: shawnigan lake, bc, canada

Re: Improve fuel economy with foils attached to car

Post by dlb » Tue Sep 04, 2012 8:38 pm

Petros wrote:they call themselves "podpeople", so it appears they are not democrat or Republican, but alien invaders. :shock:
lol

User avatar
splatterdog
Highest Ranking Member
Posts: 1522
Joined: Sun Mar 26, 2006 10:26 am
Location: Minnesota, USA

Re: Improve fuel economy with foils attached to car

Post by splatterdog » Thu Sep 06, 2012 5:03 pm

Without some labcoats and a windtunnel, I feel these would be as effective an enhancement as peel and stick hoodscoops. A lot less scam than the water for gas guys though.

Plus, any gains would be negated by all the question answering about those weird bumps on your car. :lol:

By the time you get it figured out, you might look as bad as those Mitsu engineers from 4doorVIP's link. Looks like mugshots..

teranfirbt
Top Notch Member
Posts: 489
Joined: Mon Mar 30, 2009 12:58 am
My tercel:: '86 SR5 4WD, 5AFE, lifted rear, 195/70/14 tires
Location: Seattle, WA

Re: Improve fuel economy with foils attached to car

Post by teranfirbt » Sun Sep 09, 2012 3:15 am

It'd be interesting to see results from a long term test... A lot of the time these sorts of things "show results" because the people testing them unconsciously change their driving habits in the short term to try to save fuel. I can do that by myself without silly stick on bumps, all I have to do is stay out of the secondary on the Weber and I'll gain 2 mpg commuting to work.... It's just way less fun :P

hberdan
Highest Ranking Member
Posts: 519
Joined: Thu Jan 20, 2005 8:46 pm
My tercel:: Sold my 1987 Tercel Dlx 4x4 Wagon but miss driving it everyday. I don't miss working on it, though.
Location: Colorado!

Re: Improve fuel economy with foils attached to car

Post by hberdan » Sat Sep 15, 2012 5:05 pm

I suppose if you are driving primarily on high speed roads, there might be a small benefit. Otoh, the Tercel wagon is so ~non-aerodynamic~that there is little hope for improvement.
"I'm high on the real thing: Powerful gasoline, a clean windshield, and a shoeshine."

teranfirbt
Top Notch Member
Posts: 489
Joined: Mon Mar 30, 2009 12:58 am
My tercel:: '86 SR5 4WD, 5AFE, lifted rear, 195/70/14 tires
Location: Seattle, WA

Re: Improve fuel economy with foils attached to car

Post by teranfirbt » Mon Sep 17, 2012 12:31 pm

Actually, cars that have poor aerodynamics will see more significant improvements from small changes than a car that is already aerodynamic. It's like fuel economy, going from 10 to 13 mpg is a much much larger improvement than going from 40 to 43 mpg.

Post Reply