07-28-2013, 02:14 PM
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#321 (permalink)
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EcoModding Apprentice
Join Date: Jun 2013
Location: Germany
Posts: 126
Thanks: 2
Thanked 63 Times in 41 Posts
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Hi,
i drived my polo with 2,8l/100km @ 82km/h avg speed (inkl. city driving and traffic jam) over 1100km
I would try my driving with your car when i could..
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Today
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08-05-2013, 01:28 AM
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#322 (permalink)
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Master EcoModder
Join Date: Feb 2013
Location: Oregon
Posts: 429
Thanks: 41
Thanked 108 Times in 68 Posts
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Quote:
Originally Posted by Vekke
2.05 l/100km at 90 km/h avg speed so its getting pretty close:
- Raised tyre pressures from 2.6 to 4.6 bar
- built intercooling ducting
- Closed little bit more of the front grill. Now water temp at 97-103 celsius
- removed engine fan
Ultragauge avg speed 90.0 km/h. This was little slower drive speeds than previous best as cars fuel consumption gauge avg showed 2.3 liter figures.
Still throttle control not tweaked and power software in which is tricky in accelerations.
Weather +21 celsius and road +40 celsius.
There is a chance of fillup error, but usually they are to other direction. Next tests will reveal more
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Good work Vekke keep it up and you will beat the 2L mark soon enough
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08-13-2013, 01:44 PM
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#323 (permalink)
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Mechanical engineer
Join Date: Jan 2009
Location: Kitee (Finland)
Posts: 1,272
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Today was not warm enough for fuel record attemps. it was +16 celsius and I was able to reach 2.25 liter fuel consumption on short test. Anyway it was otherwise nice weather and decided to make some performance tests. So enjoy .
Weather seems to be cold at least next week so cannot reach that two liters any time soon. Some mods to ECU are coming which should help. I havent tried yet any record with full P&G which should work better as I havent had the money to buy 30% taller gear ratios...
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08-13-2013, 03:15 PM
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#324 (permalink)
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EcoModding Apprentice
Join Date: Apr 2011
Location: Southern France
Posts: 159
AX - '95 Citröen AX 307 - '04 Peugeot 307 SW
Thanks: 12
Thanked 67 Times in 37 Posts
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Will it be custom-made gearings or from an existing model? Some Audis with huge diesel engines have over 80 km/h at 1000 rpm I think.
You must be at low load now with the impressive power your engine is putting out. If your car needs 8,9 hp at 100 km/h and your engine has 58,1 hp (215 Nm x 1900 rpm) at 1900 rpm, that's only 15% load.
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08-22-2013, 03:59 AM
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#325 (permalink)
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Mechanical engineer
Join Date: Jan 2009
Location: Kitee (Finland)
Posts: 1,272
Thanks: 270
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Under two liters for the first time. Result was 1.94 l/100km at 86.9 km/h avg speed that is 121.07 mpg (US) at 54 MPH. Overfilled the tank so fuel flowed to ground so it sure was full.
Last edited by Vekke; 08-22-2013 at 05:34 AM..
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08-22-2013, 09:01 AM
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#326 (permalink)
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Cyborg ECU
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299
Thanks: 2,373
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Wow. And that's a great pic of the current exterior. Love the apparent quality of the mods: the chopped section of the aft body to lower the roof line, the rear view mirror fairing on the window, the distinction lines on the kamm back, the clean look of the wheel covers, and the general clean lines of the mods... at least as much as can be seen in a relatively low res photo... congrats.
What's next?
james
__________________
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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08-22-2013, 09:25 AM
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#327 (permalink)
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Master EcoModder
Join Date: Jan 2010
Location: Denmark, Europe
Posts: 338
Thanks: 138
Thanked 42 Times in 35 Posts
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Congratulations - fantastic Job!
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08-22-2013, 10:47 AM
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#328 (permalink)
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Mechanical engineer
Join Date: Jan 2009
Location: Kitee (Finland)
Posts: 1,272
Thanks: 270
Thanked 841 Times in 414 Posts
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Next is full push and glide with 100 km/h avg speed attempt with that 2 liter fuel consumption. ECU program needs still some tweaks to get that push and glide mode working properly. Target boost for ECO acceleration is set to 1.0-1.1 bar where exhaust back pressure should still be reasonable --> that should lead to good efficiency
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08-22-2013, 05:37 PM
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#329 (permalink)
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Ultimate Fail
Join Date: Feb 2008
Location: Austin,Texas
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Thanked 1,121 Times in 679 Posts
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Congratulations.
The car looks beautiful ! And I too agree about the quality of your mods.
Very professional.
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08-22-2013, 07:39 PM
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#330 (permalink)
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EcoModding Apprentice
Join Date: Oct 2010
Location: Corvallis, OR
Posts: 142
Thanks: 17
Thanked 27 Times in 20 Posts
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Car looks really great. The mods look so clean and professional.
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