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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 12-08-2008, 01:36 PM   This thread is in the EcoModder Project Library | #1 (permalink)
TacoModder
 
mobilerik's Avatar
 
Join Date: Nov 2008
Location: San Diego, CA
Posts: 108

rik's prerunner - '03 Toyota Tacoma Prerunner Double Cab TRD 4A
90 day: 29.68 mpg (US)
Thanks: 0
Thanked 2 Times in 1 Post
'03 Tacoma Prerunner - Aerodynamix

Ok, so here's a preview of last night's mods:



Current Aero-Mod Inventory:
  • Half-Tonneau Cover
  • Belly Screen
  • Smooth Wheel Covers
  • Rear Wheel Skirts
  • Top and Bottom Grille Blocks

Best Numbers: I calculated my actual best commute, scaling my uncalibrated ScanGauge numbers, at about 29mpg, based on my very consistent and rising commute mpgs from last week. The actual fillup was 27.7mpg. EPA is 18.

Next Adventures: I removed last week's roof vortex generators (DIY AirTab type) temporarily. And forgot to put them back on. I also meant to fold back the passenger-side mirror this morning. For my next mod, I'm thinking to use my remaining strip of coroplast to make a temporary mini-Kammback-spoiler for the roof, and I'll cut VGs into that. I'll also be making dams for the front wheel wells - since the Prerunner comes lifted, there's a lot of space above the front wheels.

I'll post more pix as I go along. As for science... sorry, for now "I want my mpgs", and if I nerd out too much, I'll never finish my mods. But eventually I'd love to do some coastdowns.

For this week, please join me in cheering on my wheel mods. If can I relearn to drive with my way-off ScanGauge recalibration (ugh!), I oughta be able to fill up at 30mpg this week.

Other data for those interested:
2003 Tacoma Prerunner
Double Cab, Short Bed
2.7L 3RZ-FE 4-cylinder automatic

Suggestions needed:
I'll need clever and easy ideas for accessing the tire valves. I'll explain more when I post pix of the wheel covers, which are of the DIY pizza pan variety, secured for now with zip-ties. I'm thinking I may buy valve extenders so they can be permanently accessible. The alternative, of course, seems to be to cut a sizable hole in each of the covers.

For more... please see my Trip Log.


Last edited by mobilerik; 12-10-2008 at 12:17 PM..
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 12-08-2008, 02:06 PM   #2 (permalink)
Master EcoModder
 
FastPlastic's Avatar
 
Join Date: May 2008
Location: Ames, IA
Posts: 419

98 Cherokee - '98 Jeep Cherokee
90 day: 17.18 mpg (US)

ZX7R Ninja - '99 Kawasaki ZX7R Ninja
90 day: 42.45 mpg (US)
Thanks: 4
Thanked 13 Times in 12 Posts
Look like your off to a great start Keep up the good work!
__________________

Adjusted for my driving habits. 80%city/20%Highway.
20mpg city/30mpg highway or bust! Check out my mods so far
  Reply With Quote
Old 12-08-2008, 04:59 PM   #3 (permalink)
EcoModding Apprentice
 
Join Date: Nov 2008
Location: Safety Harbor, FL
Posts: 119

Lil Sulf - '94 Toyota Corolla
Team Toyota
90 day: 47.62 mpg (US)
Thanks: 2
Thanked 1 Time in 1 Post
That's one of the best looking cars that have any mods to them.
You get to drive around a cool looking pickup and still get almost 30mpg, that's awesome.

My car gets 10mpg over your car but my mods don't look as pro as yours do(yet )
__________________

And that's without a Scangauge o.O
  Reply With Quote
Old 12-08-2008, 05:49 PM   #4 (permalink)
TacoModder
 
mobilerik's Avatar
 
Join Date: Nov 2008
Location: San Diego, CA
Posts: 108

rik's prerunner - '03 Toyota Tacoma Prerunner Double Cab TRD 4A
90 day: 29.68 mpg (US)
Thanks: 0
Thanked 2 Times in 1 Post
Quote:
That's one of the best looking cars that have any mods to them.
Wow, quite a compliment! Maybe I'll keep to my low-resolution cellphone pix for all my mods.

It does look fairly cool from a distance, though... but I still haven't gotten used to smooth wheels. There's something so "un-truck-like" about that to me. And racing wheels on a lifted truck that's going 45 in the slow lane... Just who do I think I am anyway??

The demand is growing in my mind for that "Research Vehicle" placard.

Last edited by mobilerik; 12-08-2008 at 07:14 PM..
  Reply With Quote
Old 12-08-2008, 07:43 PM   #5 (permalink)
rav
EcoModding Lurker
 
Join Date: Sep 2008
Location: albany, NY
Posts: 38

Gas HOG - '08 JEEP LIBERTY SPORT
Thanks: 5
Thanked 5 Times in 4 Posts
Did the air tabs help? Nice mods so far, All the best!!
  Reply With Quote
Old 12-08-2008, 08:02 PM   #6 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 21,250

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

MPGiata - '90 Mazda Miata
90 day: 52.8 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 73.57 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 55.99 mpg (US)
Thanks: 3,004
Thanked 5,890 Times in 3,052 Posts
I'm betting the air tabs made no discernable difference.

Great mods!

I'd definitely work on that coroplast taper to the roof & side of the cab. You can't go wrong with a 10 degree taper (sides & top) if you just want to slap something together.
__________________
Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L



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 12-08-2008, 08:40 PM   #7 (permalink)
Giant Moving Eco-Wall
 
DifferentPointofView's Avatar
 
Join Date: Dec 2007
Location: The Dale, IL (or A-Dale)
Posts: 1,120

The Jeep! - '95 Jeep Grand Cherokee ZJ Laredo
90 day: 23.75 mpg (US)

The Caliber - '07 Dodge Caliber R/T
90 day: 30.6 mpg (US)

The 'Scort - '98 Ford Escort LX
Thanks: 0
Thanked 7 Times in 6 Posts
its so good looking cause everything matches, and is smooth. the wheel caps match the cars paint while delivering a 2 tone look with the black on the wheels, and the rear wheel cover is black like the fender flares, and smoothly goes from front to back of fender, so it looks as though its supposed to be there. Nice work.
__________________


Yea.. I drive a Jeep and I'm on a fuel economy site, but you just wouldn't understand... "It's a Jeep thing!" *Jeep Wave*

Did I Use Too Many Abbreviations? Here's The Abbreviations List
  Reply With Quote
Old 12-08-2008, 10:24 PM   #8 (permalink)
TacoModder
 
mobilerik's Avatar
 
Join Date: Nov 2008
Location: San Diego, CA
Posts: 108

rik's prerunner - '03 Toyota Tacoma Prerunner Double Cab TRD 4A
90 day: 29.68 mpg (US)
Thanks: 0
Thanked 2 Times in 1 Post
Holy crap!!!

My SG recalibration was so far off, I felt I had to fill up to get some sense of normalcy back in my monitoring system. Check out my first post-wheel-mod gas receipt:



And here I thought I had a crappy day! Since the SG was so far off -- about 8mpg too low -- I couldn't hit any of my marks, and gave way more gas than I should have, just to keep my speed up. It was terribly confusing. About halfway through the return trip, I figured out that I need to aim about 5-6mpg lower than usual, based on my previous marks, and just as I got it into my head that I was going to beat 30, I ran into an uphill pile-up! I was totally baffled when the gas pump shut off when it did, and it took me quite a few startled seconds to recognize the easy "divide by 2.0 gal" calculation.

So can we say, "Way to go, wheel mods!!"

Of course, such a short tank is bound to have a large error. So we'll see how the rest of the week goes. Maybe I can get another mod in tonight.
  Reply With Quote
Old 12-08-2008, 10:32 PM   #9 (permalink)
EcoModding Apprentice
 
Join Date: Nov 2008
Location: Safety Harbor, FL
Posts: 119

Lil Sulf - '94 Toyota Corolla
Team Toyota
90 day: 47.62 mpg (US)
Thanks: 2
Thanked 1 Time in 1 Post
33 mpg is simply amazing in pretty much any pickup, high five.
If you could pick a number in mpg, how much do you think you scangauge helps?

I don't have an SG, I think my car is too old, and I still manage to pull about 50% over EPA.
I give myself a pat on the back every fillup.
__________________

And that's without a Scangauge o.O
  Reply With Quote
Old 12-08-2008, 11:24 PM   #10 (permalink)
Master EcoModder
 
Join Date: Mar 2008
Location: southern, wv
Posts: 353

Johnny 5 - '81 Honda Cm400e
90 day: 42.86 mpg (US)

Da bike - '06 Honda Shadow Vlx deluxe
90 day: 59.47 mpg (US)
Thanks: 18
Thanked 8 Times in 5 Posts
flat landers!!!!!


very nice 3rz ftw!

__________________
.
  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
old time Tacoma owner lookin' to get more MPG humanoid Introductions 12 02-25-2009 07:37 AM
Tacoma Drivin' New Member Here tacodan Introductions 5 07-14-2008 08:27 PM
2007 Tacoma 4cyl 2wd-newbie runlight Introductions 5 07-03-2008 07:59 AM
yet another tacoma member HJC Introductions 9 04-06-2008 03:36 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com