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Old 09-07-2012, 03:39 PM   #1 (permalink)
MetroMPG
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Join Date: Nov 2007
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
90 day: 53.56 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.98 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 57.23 mpg (US)
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Tested: MPG/fuel economy VS. speed, 2000 Honda Insight, 1.0L lean burn, 5-spd



Finally got around to testing the U.F.O.'s speed vs. fuel consumption (at cruise, ideal conditions). This is all in top (5th) gear, with multiple mods in place (listed below) and with hybrid functions switched off (no electric assist/regen/charging during the runs).

For reference, the car's EPA fuel economy ratings are:
EPA city: 49 mpg (US)
EPA highway: 61 mpg (US)
EPA combined: 53 mpg (US)



Weather conditions:

Sept 7th, 2012
Sunny, 20 C
Wind S 5 km/h
Pressure 101.3 kpa
Humidity 71%

Raw numbers:


Speed ........ Set 1 .......... Set 1 ......... Set 2 ......... Set 2 ......... Avg .......... Avg

km/h . mph . W MPGUS . E MPGUS . W MPGUS . E MPGUS . MPG (US) . L/100 km

50 ... 31.1 ..... 129.4 ..... 132.3 ................................................ 130.9 ..... 1.8
60 ... 37.3 ..... 121.7 ..... 121.2 ................................................ 121.5 ..... 1.9
70 ... 43.5 ..... 113.5 ..... 117.7 ..........105.9 ......... 118.4 ........ 113.9 ..... 2.1
80 ... 49.7 ..... 94.2 ....... 101.9 ......... 94.9 ........... 101 ........... 98.0 ....... 2.4
90 ... 55.9 ..... 87.6 ....... 88.3 ........... 86.7 ........... 91.4 .......... 88.5 ....... 2.7
100 .. 62.1 .... 80.6 ....... 82.6 ........... 80.6 ........... 81.5 .......... 81.3 ....... 2.9
110 .. 68.4 .... 66.5 ....... 67.6 .................................................. 67.1 ....... 3.5


Methodology:
All readings were taken in top (5th) gear.

Air conditioning was off, windows were up (passenger side cracked an inch or 2).

Hybrid assist/charging was disabled during the runs.

Car was brought up to speed & leveled off before passing a "start" marker (road sign) where the computer was reset. Reading was taken after passing a "finish" marker.

Lean burn was fully engaged at all speeds except 110 km/h (partially engaged). If the car left lean burn due to throttle movement or an automatic NOX purge, the throttle was quickly adjusted (slightly lifted) to regain lean burn a.s.a.p., and speed was re-adjusted as needed .

Mods in place during test:
  • disabled hybrid assist/regen/charge (via "Calpod" clutch switch mod)
  • EPS off (electric power steering assist)
  • DRLs off (daytime running lights)
  • also, the following mods from: http://ecomodder.com/forum/showthrea...-km-18930.html ...
  • partial grille block
  • deleted passenger side mirror
  • flat-folded driver's outside mirror (from a Suzuki Swift)
  • deleted wiper arms: passenger side & hatchback

Route:
2 lane highway, straight, dry & level (follows river edge). The road runs SSW/NNE and can be found here: 1000 Islands Parkway - Google Maps . Test portion is 1.6 km / 1 mi in length.

Traffic conditions:
There was no traffic ahead in my lane; some traffic occasionally passed in the oncoming lane.
---

See also: http://ecomodder.com/forum/showthrea...you-15182.html

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