04-27-2016, 07:04 PM
|
#11 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,544
Thanks: 8,086
Thanked 8,878 Times in 7,327 Posts
|
Quote:
|
A new study ... estimates that roof racks can cost drivers as much as 25 percent more in gas.
|
Challenge accepted? (Example: a steamer trunk on the aerocivic.)
Quote:
|
"For comparison, the additional fuel consumption caused by roof racks is about six times larger than anticipated fuel savings from fuel cell vehicles and 40 percent of anticipated fuel savings from battery electric vehicles in 2040," the researchers wrote.
|
Oh, come on. They'll have to show their work on this one.
|
|
|
|
 Today
|
|
|
|
Other popular topics in this forum...
|
|
|
|
|
04-30-2016, 03:34 PM
|
#12 (permalink)
|
|
Master EcoModder
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,267
Thanks: 24,392
Thanked 7,360 Times in 4,760 Posts
|
2 data points
CAR and DRIVER measured:
*1981 Ford Escort at 60-mph,with 12-cubic foot cargo carrier = 6-mpg loss.
*1982 VW Scirocco,with empty roof rack @ 55-mph = 13% mpg loss.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
|
|
|
|
|
04-30-2016, 04:53 PM
|
#13 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,544
Thanks: 8,086
Thanked 8,878 Times in 7,327 Posts
|
6 is 13% of 46, but there's the 5mph difference.
Journalists!
|
|
|
|
|
The Following User Says Thank You to freebeard For This Useful Post:
|
|
|
04-30-2016, 05:16 PM
|
#14 (permalink)
|
|
Master EcoModder
Join Date: Jan 2008
Location: Sanger,Texas,U.S.A.
Posts: 16,267
Thanks: 24,392
Thanked 7,360 Times in 4,760 Posts
|
difference
Quote:
Originally Posted by freebeard
6 is 13% of 46, but there's the 5mph difference.
Journalists!
|
Actually,we need the baseline for each vehicle so as to know the % difference for the Escort,and the mpg difference for the Scirocco.
And we'd have to make presumptions about rolling resistance and BSFC if we attempt to predict at a different velocity.
__________________
Photobucket album: http://s1271.photobucket.com/albums/jj622/aerohead2/
|
|
|
|
|
04-30-2016, 06:11 PM
|
#15 (permalink)
|
|
Not Doug
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,232
Thanks: 7,254
Thanked 2,231 Times in 1,721 Posts
|
Can we merge threads?  |
|
|
|
|
04-30-2016, 09:15 PM
|
#16 (permalink)
|
|
Master EcoModder
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,544
Thanks: 8,086
Thanked 8,878 Times in 7,327 Posts
|
|
|
|
|
|
The Following User Says Thank You to freebeard For This Useful Post:
|
|
|
05-05-2016, 03:19 AM
|
#17 (permalink)
|
|
Corporate imperialist
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 11,266
Thanks: 273
Thanked 3,569 Times in 2,833 Posts
|
It's an H2 so you might as well put a huge home made roof rack on it.
Custom H2 roof rack build
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
|
|
|
|
|
05-05-2016, 12:07 PM
|
#18 (permalink)
|
|
Not Doug
Join Date: Jun 2012
Location: Show Low, AZ
Posts: 12,232
Thanks: 7,254
Thanked 2,231 Times in 1,721 Posts
|
What in the world is he planning on carrying up there?!
|
|
|
|
|
05-05-2016, 12:55 PM
|
#19 (permalink)
|
|
Just cruisin’ along
Join Date: Jul 2009
Location: Rochester, NY
Posts: 1,183
Thanks: 66
Thanked 200 Times in 170 Posts
|
I admire the craftsmanship though. If you're gonna build it, build it right!
__________________
'97 Honda Civic DX Coupe 5MT - dead 2/23
'00 Echo - dead 2/17
'14 Chrysler Town + Country - My DD, for now
'67 Mustang Convertible - gone 1/17
|
|
|
|
|
05-06-2016, 11:14 PM
|
#20 (permalink)
|
|
It's all about Diesel
Join Date: Oct 2012
Location: Porto Alegre, Rio Grande do Sul, Brazil
Posts: 12,873
Thanks: 0
Thanked 1,684 Times in 1,502 Posts
|
I see more people using roof racks as an ornament than actually hauling something with it.
|
|
|
|
|
The Following User Says Thank You to cRiPpLe_rOoStEr For This Useful Post:
|
|
|
