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Old 07-11-2013, 09:39 AM   #1 (permalink)
Cyborg ECU
 
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 5,010

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 57.76 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,772
Thanked 1,449 Times in 995 Posts
Cruising at 60+ mpg @ 60 mph

In this warm weather, I cruised 250 miles Tuesday and Wednesday on the freeways here and averaged 64.xx mpg. My speeds varied from 55-60mph. With a few more good aeromods, maybe my long sought goal of 60/60 cruising (60 mph and 60 mpg) is almost in reach.

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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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Old 07-11-2013, 10:22 AM   #2 (permalink)
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At a steady 60 MPH my Fiesta will push just past 50 MPH.

regards
Mech
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Old 07-11-2013, 11:57 AM   #3 (permalink)
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Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
Last 3: 51.27 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.51 mpg (US)
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MPG MPH MP?

---

Congrats! 60 at 60 is Gen 2 Prius territory.

I have a saying for my Firefly: "70 at 70". But that's MPG (US) at km/h.
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Old 07-11-2013, 12:37 PM   #4 (permalink)
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Location: Texas
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PaleCivic (retired) - '96 Honda Civic DX Sedan
90 day: 69.2 mpg (US)

PaleFit - '09 Honda Fit Sport
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90 day: 51.06 mpg (US)
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My stock Fit is 50 @ 50, so your result is impressive.
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11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
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Old 07-11-2013, 01:32 PM   #5 (permalink)
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TheEgg - '18 Volkswagen Tiguan SEL Premium
90 day: 29.49 mpg (US)
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Very nice!

60@60 is about what the TDI manages. Having a 6th gear helps
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Old 07-11-2013, 01:57 PM   #6 (permalink)
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Lean and Mean - '98 Honda Civic HX
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What RPM are you at going 60 mph? Do you contribute your success to the aeromods or the long VX gearing, or a mixture of everything?

I've got to repair my HX transmission and I have been thinking about just swapping it for a VX instead of repairing. Right now I am at 2250 RPM at 60 mph. I have slightly taller tires than stock.
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Old 07-11-2013, 03:04 PM   #7 (permalink)
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Location: Coastal Southern California
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Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 57.76 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,772
Thanked 1,449 Times in 995 Posts
Quote:
Originally Posted by cbaber View Post
What RPM are you at going 60 mph? Do you contribute your success to the aeromods or the long VX gearing, or a mixture of everything?

I've got to repair my HX transmission and I have been thinking about just swapping it for a VX instead of repairing. Right now I am at 2250 RPM at 60 mph. I have slightly taller tires than stock.
I'm around 1950rpms at 60mph. The '93 CX transmission is without doubt a big factor, but I follow the idea of getting a bunch of small benefits from multiple mods--weight, engine, and aero--together and "stack" them up until it equals a big difference. The biggest benefits seemed to come from deleting the power steering and the alternator. Deleting 200+ pounds in weight from the car. Pumped up tires. And the airdam and grill blocking. I think the WAI helps too--or at least my testing suggested it did.

I did very little hypermiling, by my standards, on this trip. So the engine kill switch was less significant than usually. I held steady throttle as much as traffic or hills permitted. At some stretched the instant MPG reading would cross 70. At others it would be under 60. I did some mild drafting, one or twice cut the engine, coasted in neutral down the rare large hills or when traffic piled up in front of me.

Warm weather helps a lot. I won't get this number in the winter.

Need more aeromods!
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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Old 07-11-2013, 03:15 PM   #8 (permalink)
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Aerocivic - '92 Honda Civic CX
Last 3: 70.54 mpg (US)

AerocivicLB - '92 Honda Civic CX
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90 day: 55.14 mpg (US)
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70@70 below 1000 ft elevation and 75@75 above 2000 ft elevation in the aerocivic. The mileage improves with altitude.
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Old 07-11-2013, 03:18 PM   #9 (permalink)
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 20,854

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
Last 3: 51.27 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.51 mpg (US)
Thanks: 2,691
Thanked 5,600 Times in 2,875 Posts
Quote:
Originally Posted by California98Civic View Post
I follow the idea of getting a bunch of small benefits from multiple mods--weight, engine, and aero--together and "stack" them up until it equals a big difference.
Which is why I like your car/projects. Multidisciplinary! Added this thread to the front page.
__________________
Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
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Old 07-12-2013, 08:30 PM   #10 (permalink)
Cyborg ECU
 
California98Civic's Avatar
 
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 5,010

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 57.76 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,772
Thanked 1,449 Times in 995 Posts
Quote:
Originally Posted by MetroMPG View Post
Which is why I like your car/projects. Multidisciplinary! Added this thread to the front page.
Way cool. Thanks. It's a fun ride these days, but I want that last measure of economy. Want to get to 60/60.

__________________


See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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