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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 02-09-2008, 01:49 PM   #41 (permalink)
Master EcoModder
 
aerohead's Avatar
 
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 12,445
Thanks: 20,007
Thanked 6,218 Times in 3,838 Posts
Buckyball's F-350

There was some discussion of bigger truck fuel economy over at maxmpg.A couple of years back,Popular Science did a mpg comparison between a GM 3/4-ton diesel pickup and a Ford Taurus.I take issue with their methodology as they seemed to mix apples and oranges,however they did site some recommendations for fuel economy by Rich Taylor,Chief of GMC truck division.

As per Taylor's recommendations,the magazine's crew blocked some of the grille,fabricated a partial bellypan for the sides of the under-chassis,leaving the center exposed (presumably for cooling insurance),and installed a tonneau cover over the bed.

An internal memo pegged the gasoline truck at, I believe,17-mpg,the modified diesel,at 55-mph,returned about 26-mpg.

Members have discussed a gradual blocking of the grille and then monitoring temps.Good idea! As with GM,the Ford cooling system may be designed to deal with Death Valley,at the peak of summer,with all accessories on,at idle.I suspect,short of those conditions,one could safely block some of that grille with no ill effect.

If the chin spoiler is not as low as the lowest suspension member,an addition to the spoiler would block some air from the underside,giving some of the benefit of a bellypan.

The truck is heavy,but there's little you can economically do about that.

Around town,aero mods won't show up at the diesel pump. If you do a significant portion of highway travel,then the back of the truck is where your fuel is going.Anything you can do to clean up the wake will pay dividends.

__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 02-10-2008, 09:49 AM   #42 (permalink)
Master EcoModder
 
Big Dave's Avatar
 
Join Date: Jan 2008
Location: Steppes of Central Indiana
Posts: 1,314

The Red Baron - '00 Ford F-350 XLT
90 day: 27.99 mpg (US)

Impala Phase Zero - '96 Chevrolet Impala SS
90 day: 21.03 mpg (US)
Thanks: 0
Thanked 183 Times in 124 Posts
All this is in line with what I have found.
__________________
2000 Ford F-350 SC 4x2 6 Speed Manual
4" Slam
3.08:1 gears and Gear Vendor Overdrive
Rubber Conveyor Belt Air Dam
  Reply With Quote
Old 08-02-2008, 01:36 PM   #43 (permalink)
EcoModding Apprentice
 
LUVMY02CREW's Avatar
 
Join Date: Jan 2008
Location: Mid TN
Posts: 152

TANK the fifth - '02 Chevrolet S10 Crew Cab 4x4 LS
90 day: 20.44 mpg (US)
Thanks: 4
Thanked 2 Times in 2 Posts
Hey bigdave,

I checked out the pictures you listed above, but didn't see any pictures of what you have behind your front air dam. Does it have anything built behind it to maintain shape or does it maintain shape on its own?

I ask because I have a smaller piece, 9-10" wide and FREE, that I'm gonna give a go on the front of my bumper to smooth out where the tow hooks and license plate area are. Just wondering if mine did "give in" some without anything helping it out if it'll be worth it?????
__________________
  Reply With Quote
Old 08-02-2008, 05:49 PM   #44 (permalink)
Master EcoModder
 
Big Dave's Avatar
 
Join Date: Jan 2008
Location: Steppes of Central Indiana
Posts: 1,314

The Red Baron - '00 Ford F-350 XLT
90 day: 27.99 mpg (US)

Impala Phase Zero - '96 Chevrolet Impala SS
90 day: 21.03 mpg (US)
Thanks: 0
Thanked 183 Times in 124 Posts
Myair dam has a curve in it against the wind plus two flat aluminum plates to hold its shape. It holds its shape well at road speeds.

As for grille blocking, you can fearlessly block off the vertcal openings - they are 100% decorative. You could block 6 inches off either side of the horizontal opening as well and still get full air flow to the condensor, intercooler, radiator stack. My chin slot also gives air flow to the tranny cooler.

__________________
2000 Ford F-350 SC 4x2 6 Speed Manual
4" Slam
3.08:1 gears and Gear Vendor Overdrive
Rubber Conveyor Belt Air Dam
  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Commercially produced aerodynamic pickup bed cap MetroMPG Aerodynamics 545 02-01-2020 08:41 PM
GM mods the Sierra hybrid pickup: aerodynamic tweaks + LRR MetroMPG EcoModding Central 5 09-03-2012 08:17 AM
Sources of Aerodynamic Drag in Automobiles and Possible Solutions SVOboy Aerodynamics 12 02-17-2010 02:09 PM
Yet another pickup driver checking in... LUVMY02CREW Introductions 12 03-02-2008 06:38 PM
2006 in review: mods vs. technique. And the winner is... MetroMPG Hypermiling / EcoDriver's Ed 16 12-10-2007 07:46 AM



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