04-27-2016, 06:04 PM
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#11 (permalink)
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Master EcoModder
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A new study ... estimates that roof racks can cost drivers as much as 25 percent more in gas.
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Challenge accepted? (Example: a steamer trunk on the aerocivic.)
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"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.
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Oh, come on. They'll have to show their work on this one.
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 Today
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04-30-2016, 02:34 PM
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#12 (permalink)
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Master EcoModder
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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.
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04-30-2016, 03:53 PM
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#13 (permalink)
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Master EcoModder
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6 is 13% of 46, but there's the 5mph difference.
Journalists!
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04-30-2016, 04:16 PM
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#14 (permalink)
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Master EcoModder
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difference
Quote:
Originally Posted by freebeard
6 is 13% of 46, but there's the 5mph difference.
Journalists!
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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.
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04-30-2016, 05:11 PM
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#15 (permalink)
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Not Doug
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Can we merge threads?  |
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04-30-2016, 08:15 PM
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#16 (permalink)
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Master EcoModder
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05-05-2016, 02:19 AM
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#17 (permalink)
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Corporate imperialist
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It's an H2 so you might as well put a huge home made roof rack on it.
Custom H2 roof rack build
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05-05-2016, 11:07 AM
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#18 (permalink)
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Not Doug
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What in the world is he planning on carrying up there?!
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05-05-2016, 11:55 AM
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#19 (permalink)
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Just cruisin’ along
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I admire the craftsmanship though. If you're gonna build it, build it right!
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'97 Honda Civic DX Coupe 5MT - dead 2/23
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05-06-2016, 10:14 PM
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#20 (permalink)
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It's all about Diesel
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I see more people using roof racks as an ornament than actually hauling something with it.
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