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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 04-03-2015, 06:51 PM   #41 (permalink)
Master EcoModder
 
Join Date: Feb 2014
Location: Missoula, MT
Posts: 2,653

Dark Egg - '12 VW Touraeg
Thanks: 301
Thanked 1,178 Times in 807 Posts
Congrats! Happy camping.
Now how about a custom tail, lowered ride height, wheel skirts, A/C and vent fairing?

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 04-07-2015, 12:35 AM   #42 (permalink)
Master EcoModder
 
skyking's Avatar
 
Join Date: Apr 2011
Location: Tacoma WA
Posts: 1,399

Woody - '96 Dodge Ram 2500 SLT
Team Cummins
90 day: 23.82 mpg (US)

Avion and Woody - '96 Dodge/Avion Ram 2500/5th wheel combo
90 day: 15.1 mpg (US)

TD eye eye eye - '03 Volkswagen Beetle GLS
90 day: 49.05 mpg (US)

Mule - '07 Dodge Ram 3500 ST
Thanks: 743
Thanked 528 Times in 344 Posts
^what he said. A simple foldable 3 piece boat tail would be cheap and effective.
I did not see what you are using for a tow vehicle?
__________________




2007 Dodge Ram 3500 SRW 4x4 with 6MT
2003 TDI Beetle
2002 TDI Beetle

currently parked - 1996 Dodge 2500 Cummins Turbodiesel
Custom cab, auto, 3.55 gears
  Reply With Quote
Old 09-04-2015, 05:18 PM   #43 (permalink)
EcoModding Lurker
 
Ecobalt's Avatar
 
Join Date: Apr 2010
Location: Ohio
Posts: 41
Thanks: 0
Thanked 7 Times in 3 Posts
Taylor coach and Silverado

We towed the trailer home from Canada in April with our new Silverado double cab pickup truck with the new aluminum 5.3 liter V8 engine. The owners manual said to tow at 50 mph for the first 500 miles. We obeyed. The DCM said that we got 11 mpg including the day when we towed in a fierce crosswind and flurries with <10 mpg.

Last month, we towed 220 miles from Cleveland to Black Moshannon State Park, PA. Half of that trip was one mountain after another as we crossed the Allegheny Mountains. The ECM and the adaptive control on the six speed transmission found just the right amount of torque in every condition. This truck automatically selects "trailer mode" if it detects that it is towing a large trailer: it never did towing this trailer, though. It did downshift and spin at 4000 rpms on a few occasions, but it was not roaring as one would have expected with a drivetrain from previous decades.

The trip was 220 miles, 11,000 feet of climbing, and we achieved 13.2 mpg according to the DCM. We drove at 55 to 59 mph. I drove that route dozens of times and kept speeds of 55 to 65 mph typically in my little car. The foolhardy legislators of PA actually raised the speed limit to 70 mph on a few stretches of the mountains.

We towed with a Reese Pro-series equalizing hitch and sway damper. That truck with its long wheelbase and leaf springs really kept the double axle trailer in control. Contemporary trucks and large SUVs have yaw detectors that detect sway and control the braking system to prevent trailer sway. There were just a few cases when trucks overtook me and I could detect sway in the steering response. Those were tandem "double" trucks and the drivers were also foolhardy.

This trailer has an aerodynamically dirty roof with three vents, an air conditioner, a refrigerator vent, an antenna and a solar panel. To smooth all that, one might fabricate a fairing at the leading edge was almost as tall as the air conditioner. I also want to dream up some wheel fairings. As for the rear, I cannot imagine a folding fairing that would not block the rear window. We use that window for ventilation when sleeping.
Attached Thumbnails
Click image for larger version

Name:	P9040398.JPG
Views:	43
Size:	71.9 KB
ID:	18645  
  Reply With Quote
The Following 3 Users Say Thank You to Ecobalt For This Useful Post:
aerohead (09-05-2015), BamZipPow (09-04-2015), slowmover (09-25-2015)
Old 09-04-2015, 06:58 PM   #44 (permalink)
Master EcoModder
 
skyking's Avatar
 
Join Date: Apr 2011
Location: Tacoma WA
Posts: 1,399

Woody - '96 Dodge Ram 2500 SLT
Team Cummins
90 day: 23.82 mpg (US)

Avion and Woody - '96 Dodge/Avion Ram 2500/5th wheel combo
90 day: 15.1 mpg (US)

TD eye eye eye - '03 Volkswagen Beetle GLS
90 day: 49.05 mpg (US)

Mule - '07 Dodge Ram 3500 ST
Thanks: 743
Thanked 528 Times in 344 Posts
Quote:
As for the rear, I cannot imagine a folding fairing that would not block the rear window. We use that window for ventilation when sleeping.
Imagine one that you put together with panels that stack at the bumper level up to ~3' and do not obscure anything once you take it down.
__________________




2007 Dodge Ram 3500 SRW 4x4 with 6MT
2003 TDI Beetle
2002 TDI Beetle

currently parked - 1996 Dodge 2500 Cummins Turbodiesel
Custom cab, auto, 3.55 gears
  Reply With Quote
Old 09-25-2015, 03:23 PM   #45 (permalink)
Banned
 
Join Date: Oct 2009
Location: Fort Worth, Texas
Posts: 2,442

2004 CTD - '04 DODGE RAM 2500 SLT
Team Cummins
90 day: 19.36 mpg (US)
Thanks: 1,422
Thanked 737 Times in 557 Posts
Is the hitch set to restore the solo weight of the Steer Axle once hitched? More time on a certified scale to dial in the hitch is good advice. I'd shoot for "equal squat" of both truck axle body height; despite what auto manufacturers claim.

13 sounds nice.

  Reply With Quote
Reply  Post New Thread






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