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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 05-04-2025, 09:12 AM   #11 (permalink)
Master EcoModder
 
kach22i's Avatar
 
Join Date: Jul 2011
Location: Ann Arbor, Michigan
Posts: 4,223
Thanks: 150
Thanked 2,837 Times in 1,989 Posts
Quote:
Originally Posted by aerohead View Post
--------------------------------------------------------------------------------------
3) If you're not going to molest the roofline ahead of the tail of the SUV...........
As I understand it, the SUV picture was posted for the glory of it's rear deflector spoiler (to be repurposed) - he has a PICKUP truck.

Quote:
Originally Posted by Telco View Post
I am working on a pickup truck for my retirement years.......

__________________
George
Architect, Artist and Designer of Objects

2012 Infiniti G37X Coupe
1977 Porsche 911s Targa
1998 Chevy S-10 Pick-Up truck
1989 Scat II HP Hovercraft

You cannot sell aerodynamics in a can............
  Reply With Quote
The Following User Says Thank You to kach22i For This Useful Post:
aerohead (05-05-2025)
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 05-05-2025, 11:42 AM   #12 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,560
Thanks: 24,534
Thanked 7,452 Times in 4,828 Posts
gen-2 Dakota

Blueprints can help:https://getoutlines.com/blueprints/8...uck-blueprints
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Old 05-06-2025, 12:48 PM   #13 (permalink)
Y2kbug
 
y2kbug's Avatar
 
Join Date: May 2024
Location: Kentucky
Posts: 63

1999 corolla - '99 Toyota Corolla CE
Team Toyota
90 day: 38.17 mpg (US)

03 dakota v6 2wd auto - '03 Dodge Dakota
Team Dodge
90 day: 19.18 mpg (US)
Thanks: 33
Thanked 23 Times in 19 Posts
my 2nd gen dakota used to get 23mph at the most during summer. after lowering it and a friend put a “cold”( actually warm) air intake on it now ive been getting 25 mpg at the most during fall and winter. i suspect lowering it made the most difference. i havent driven it much this spring so the mogs could be higher than that in hot weather

i also didnt see any gain with fiberglass truck topper. i it weighs too much and im not going to use it anymore.
  Reply With Quote
Old 05-06-2025, 01:29 PM   #14 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 29,532
Thanks: 8,416
Thanked 9,165 Times in 7,568 Posts
A half-tonneau gives lockable storage behind an open bed.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

___________________
.
.
"Hollow core doors are the new pallet" -- Tim Sway
  Reply With Quote
Old 05-06-2025, 02:44 PM   #15 (permalink)
Y2kbug
 
y2kbug's Avatar
 
Join Date: May 2024
Location: Kentucky
Posts: 63

1999 corolla - '99 Toyota Corolla CE
Team Toyota
90 day: 38.17 mpg (US)

03 dakota v6 2wd auto - '03 Dodge Dakota
Team Dodge
90 day: 19.18 mpg (US)
Thanks: 33
Thanked 23 Times in 19 Posts
Quote:
Originally Posted by freebeard View Post
A half-tonneau gives lockable storage behind an open bed.
ive never tried that but i heard half cover can be better. mine was a full cover and it didn’t do me any good for mpg. it was nice to lock tools in when i was at a construction site but the hinge would freeze in the winter and i couldn’t get it open.
  Reply With Quote
Old 05-06-2025, 05:44 PM   #16 (permalink)
EcoModding Lurker
 
Join Date: Sep 2012
Location: Oklahoma
Posts: 22
Thanks: 4
Thanked 3 Times in 3 Posts
The half cover sounds intriguing, but the bed is already only 5ft long. I'll be doing a full cover.

This is a long term project. Right now the truck is in a shop having some frame work done so it'll be quite a bit lower than stock.

From the sound of things, moving the exhaust to exit from the tailgate will be a net gain, provided I can route it there. There's a few other things going on that might prevent this that I won't be able to check on until the truck comes home. In the meantime I'll build a bed cover spoiler as described for my daily to see if it makes a difference or not. If I can scrape enough material together I'll also build an underspoiler to see what that does for me. I'll run one, then the other, then both and see how I do for a month on them. Generally I see 18MPG out of my daily.
  Reply With Quote
Old 05-06-2025, 05:44 PM   #17 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 29,532
Thanks: 8,416
Thanked 9,165 Times in 7,568 Posts
Hal-tonneau and half-cover are halfway there.

ecomodder.com/blog/aerocaps-for-pick-up-trucks/



A full cap on a full length bed that meets the top of the tailgate is too fast.



The example at Permalink #2 has the right shape, but nobody uses it. It immobilizes the tailgate and would work best on a slammed minitrick.

edit:
Simulpost at 2:44



I think this could have bevels at the left and right ends. The manager knew it helped the mileage, but he didn't know how much.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

___________________
.
.
"Hollow core doors are the new pallet" -- Tim Sway
  Reply With Quote
Old 05-07-2025, 02:05 PM   #18 (permalink)
Not Doug
 
Xist's Avatar
 
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,327

Chorizo - '00 Honda Civic HX, baby! :D
90 day: 35.35 mpg (US)

Mid-Life Crisis Fighter - '99 Honda Accord LX
90 day: 34.2 mpg (US)

Gramps - '04 Toyota Camry LE
90 day: 35.39 mpg (US)

Don't hit me bro - '05 Toyota Camry LE
90 day: 30.49 mpg (US)
Thanks: 7,342
Thanked 2,249 Times in 1,736 Posts

At first, I thought this was a cap.
Pity.
__________________
"Oh if you use math, reason, and logic you will be hated."--OilPan4
  Reply With Quote
Old 05-07-2025, 03:11 PM   #19 (permalink)
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 29,532
Thanks: 8,416
Thanked 9,165 Times in 7,568 Posts

https://speedwaymedia.com/wp-content...-Silverado.jpg
It approximates the Camping World race trucks spoiler. I don't understand why Camping World didn't specify slant-chopped caps for the race.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

___________________
.
.
"Hollow core doors are the new pallet" -- Tim Sway
  Reply With Quote
Old 05-10-2025, 10:43 AM   #20 (permalink)
Somewhat crazed
 
Piotrsko's Avatar
 
Join Date: Sep 2013
Location: 1826 miles WSW of Normal
Posts: 4,592
Thanks: 602
Thanked 1,267 Times in 1,118 Posts
the slant aero top would reduce rear traction or mess with the spoiler they have now.


Suspect they are traction limited as it is.

__________________
casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
  Reply With Quote
The Following User Says Thank You to Piotrsko For This Useful Post:
freebeard (05-10-2025)
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com