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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-18-2008, 10:48 PM   #1 (permalink)
ecoRolla
 
CorollaMaster's Avatar
 
Join Date: Apr 2008
Location: Ipswich
Posts: 15

Sippin' Subie - '09 Subaru Impreza 2.5i Hatchback
90 day: 26.3 mpg (US)
Thanks: 0
Thanked 0 Times in 0 Posts
Send a message via AIM to CorollaMaster
2008 Corolla 1st Aero Mods

Nothing overly special here, but after becoming a little more familiar with my Scan Gauge and getting a feel for my driving, I felt like I needed to take it a step further. So here is my first attempt at an Aero mod! Rear wheel skirts! And I have enough coroplast left over that I'm going to try and do the front wheels as well!

Overall I think the whole thing took me about 2 hours to do for the rear skirts.

The Materials:
2 4x4 sheets of blue coroplast
1 3.5x4 sheet of white coroplast
it was 40$ for both (Ripoff!)
2 shelving rack rails
8 screws
Drill
Zip ties
1 Can of Black spray paint
All weather duct tape
TOTAL COST: Around $57

Here's a pic of all the materials I used


Next, I set out to try and figure out how to cut this thing to shape. I wasn't sure at first what to do, so I traced the general figure with a marker onto the white coroplast, and then drew another line about 2 inches beyond that to give me some leeway.


Then I figured it would just cut slits along the top to allow for bending, that way it would fit snug and I wouldn't have to worry about gaps or holes.


Unfortunately, it didn't really fit that well. The edges weren't really that smooth with the surface of the car and it was pushing itself out of the wheel well due to the pressure from the folds. It looked alright, but I wasn't really satisfied with the results, so I decided to try it again with the blue coroplast.


With the blue coroplast, I decided to cut it directly to the shape of the wheel well, but this time with flaps at the bottom and the top.


It fit much more nicely!


After that I spray painted them black. While the paint was drying, I decided to bend the brass shelving rods I had bought from the hardware store ($2.59 a piece for 48 inches) These were used to support the bottom part of the skirt and to keep it away from the wheel while I'm moving. The metal was actually very easy to bend by hand!


Once I had the metal bent, I put screws part way on the metal rod and into the coroplast, then I screwed the rods into the plastic body parts of my Corolla. It wasn't looking too badly now, the only thing really left was to deal with the gaps between the skirt and the body of the car.. nothing a little duct tape can't fix!


And here's the final result!




I don't have any hard results as to improvements in fuel efficiency yet, but I promise I'll post them when I do! I plan on doing a drag coefficient test, much the same as AndrewJ did earlier in Feb with his civic. The drag coefficient stock on the Corolla is .30 which isn't too bad!

I'm hoping to replace the duct tape with something a little more aesthetically pleasing? Any suggestions? Thoughts? There's always room for improvement, especially with this being my first mod! Hopefully many more to come

Thanks for lookin

__________________
-----------------------------------------

2008 Corolla S - 11,000miles

Pre-Hypermiling Tank Average ~34mpg
First Hypermiling experiment w/o ScanGuage 43.4mpg
Hypermiling with ScanGuage around 51mpg!

Last edited by CorollaMaster; 06-18-2008 at 11:28 PM.. Reason: grammar!
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 06-19-2008, 12:56 AM   #2 (permalink)
Dartmouth 2010
 
SVOboy's Avatar
 
Join Date: Nov 2007
Location: Hanover, NH
Posts: 6,427

Vegan Powa! - '91 Honda CRX DX
Team Honda
90 day: 66.52 mpg (US)
Thanks: 92
Thanked 114 Times in 82 Posts
Send a message via AIM to SVOboy Send a message via MSN to SVOboy Send a message via Yahoo to SVOboy
Looking good so far!
  Reply With Quote
Old 06-19-2008, 08:29 AM   #3 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,159

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)
Thanks: 2,459
Thanked 2,530 Times in 1,526 Posts
I'm not a fan of using duct tape to hold things to cars, but it doesn't look too bad. Good job. I'd definitly like to see some testing done though.
__________________
Current project: A better alternator delete
  Reply With Quote
Old 06-19-2008, 01:01 PM   #4 (permalink)
Ex-lurker
 
i_am_socket's Avatar
 
Join Date: Apr 2008
Location: Jersey
Posts: 571

Skeeter - '05 Toyota Corolla LE
90 day: 35.55 mpg (US)
Thanks: 2
Thanked 8 Times in 6 Posts
Looks good
__________________
  Reply With Quote
Old 06-20-2008, 01:44 PM   #5 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 12,375
Thanks: 19,919
Thanked 6,202 Times in 3,826 Posts
1st aero mods

With the body-match color,the casual observer may not even pick up on them.Looks good! Don't expect great things at the gas pump but consider how many hundreds of thousands of Corollas are out there! And should you do mods behind the rear bumper,the skirts will help guarantee good quality flow there.Thanks for your investment in my clean-air future!
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 06-20-2008, 02:23 PM   #6 (permalink)
Legend in my own mind
 
trikkonceptz's Avatar
 
Join Date: Apr 2008
Location: Homestead, Fl.
Posts: 927

Evil Pumpkin - '08 Scion xD RS 1.0 #1633
90 day: 35.45 mpg (US)

Silent Silver Killer - '10 Honda Insight EX
90 day: 51.5 mpg (US)
Thanks: 2
Thanked 13 Times in 12 Posts
As a replacement for duct tape, I would use vinyl. A sign shop should be able to sell you raw Vinyl for relatively cheap ... It will stick to the car, and will not damage the finish over time ....
__________________
Thx NoCO2; "The biggest FE mod you can make is to adjust the nut behind the wheel"

I am a precisional instrument of speed and aeromatics
If your knees bent in the opposite direction......what would a chair look like???





  Reply With Quote
Old 06-25-2008, 08:48 PM   #7 (permalink)
EcoModding Apprentice
 
Join Date: May 2008
Location: los angeles
Posts: 119

Whitey - '05 toyota corolla LE
90 day: 28.91 mpg (US)
Thanks: 0
Thanked 7 Times in 2 Posts
Send a message via AIM to blackjackel Send a message via MSN to blackjackel Send a message via Yahoo to blackjackel
I like what you've done so far, and you've given me ideas on what to do with my own skirt mod, I think I'll just do exactly what you did since your mod looks pretty good as it is....

There has to be some way to smooth the whole thing out... it still looks like coroplast from the outside (it has a texture), maybe you can buy some sort of material to make it nice and shiny and flat?

__________________
  Reply With Quote
Reply  Post New Thread


Tags
aerodynamics, corolla, skirt, wheel well

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
List of aero mods you can do to your vehicle MetroMPG Aerodynamics 147 02-22-2021 08:48 AM
Prius aero mods (undertrays, grille block, mirror delete...) krousdb Hybrids 46 08-02-2015 02:39 AM
Help with my aero mods: 1.8L 05 Auto Toyota Corolla blackjackel Aerodynamics 73 11-22-2011 09:55 PM
Saturn aero mods? Heynow999 Aerodynamics 5 05-05-2008 06:44 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com