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Old 03-02-2010, 02:49 PM   #31 (permalink)
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Siitin - '98 Seat Cordoba Vario
90 day: 58.56 mpg (US)

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Here are few finnish fuel economy related test reports:

http://www.motiva.fi/files/1027/2006..._eng_final.pdf

http://www.motiva.fi/files/950/annua...ng_07-rev1.pdf

http://www.motiva.fi/files/948/annua..._-2007_eng.pdf

Enjoy!

I will not save those on harddrive etc, but if someone is feels the need to do so please post links here...

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Old 01-18-2011, 11:48 AM   #32 (permalink)
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Siitin - '98 Seat Cordoba Vario
90 day: 58.56 mpg (US)

VW Lupo 3L --> 2L - '00 VolksWagen Lupo 3L
Diesel
90 day: 104.94 mpg (US)

A8 luxury fuel sipper - '97 Audi A8 1.2 TDI 6 speed manual
90 day: 64.64 mpg (US)

Audi A4B6 Avant Niistäjä - '02 Audi A4b6 1.9tdi 96kW 3L
90 day: 38.19 mpg (US)

Tourekki - '04 VW Touareg 2.5TDI R5 6 speed manual
90 day: 24.14 mpg (US)
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Find a great source for free reasearch documents:

Free download pdf: truck drag reduction

Just write what you need and see what papers are available .
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Old 03-01-2012, 03:52 PM   #33 (permalink)
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maybe you could find complementary info refrent to Tire Rolling Resistance in:
Lots of Tyre data Coefficient of rolling resistance, noise dB, wet grip ...
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Old 03-06-2012, 01:22 PM   #34 (permalink)
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...2002 SAE paper on "Automotive Ignition Transfer Efficiency":

http://www.pulstar.com/pdf/TechPaper_SAE.pdf
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Old 08-09-2013, 01:02 PM   #35 (permalink)
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a paper regarding effects of ignition timing, air fuel ratio and ethanol on brake specific fuel consumption and torque. This is good if you have a scangauge 2 and wondering what to do with the IGN (ignition timing) during acceleration.

http://www.sid.ir/En/VEWSSID/J_pdf/856200801B07.pdf
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Old 09-02-2013, 10:58 PM   #36 (permalink)
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Quote:
Originally Posted by ever_green View Post
a paper regarding effects of ignition timing, air fuel ratio and ethanol on brake specific fuel consumption and torque.
An old paper pushing old ideas, one by Ricardo that ethanol can be efficient, if you tinker enough with a gasoline engine designed & built to burn 100% gasoline(ethanol-free).

Well, the many hundreds of millions(more?) of gasoline engines, designed & built to burn 100% gasoline, are still at their best when burning 100% gasoline..... no tinkering or expensive or time consuming modifications need apply.

This is NOT rocket science, but it is good 100% gasoline engine science.
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Old 01-11-2017, 04:28 PM   #37 (permalink)
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I saw the "Reduced Air Pollution ... with Pre-Heated Engines" paper mentioned in another thread, but it's no longer available through the link in the OP. If this is the same one, could the OP be updated? https://www.witpress.com/Secure/elib.../UT98035FU.pdf

Similarly, the "REDUCED COLD START EMISSIONS THROUGH USE OF ELECTRIC ENGINE HEATERS" paper can now be found here:
http://citeseerx.ist.psu.edu/viewdoc...=rep1&type=pdf
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Old 03-12-2017, 03:05 PM   #38 (permalink)
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Siitin - '98 Seat Cordoba Vario
90 day: 58.56 mpg (US)

VW Lupo 3L --> 2L - '00 VolksWagen Lupo 3L
Diesel
90 day: 104.94 mpg (US)

A8 luxury fuel sipper - '97 Audi A8 1.2 TDI 6 speed manual
90 day: 64.64 mpg (US)

Audi A4B6 Avant Niistäjä - '02 Audi A4b6 1.9tdi 96kW 3L
90 day: 38.19 mpg (US)

Tourekki - '04 VW Touareg 2.5TDI R5 6 speed manual
90 day: 24.14 mpg (US)
Thanks: 165
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diesel engine optimization: http://lib.dr.iastate.edu/cgi/viewco...87&context=etd
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Old 09-10-2017, 01:48 AM   #39 (permalink)
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Hydrogen Loonies* will want to read this one

NASA on Gasoline/Hydrogen blends and changes in combustion

It goes through the benefits and total energy usage of hydrogen.

TLDR: Gasoline usage goes down, but total energy use goes up in most cases, and only gets low % better under ideal cases (not enough to counter hydrogen manufacture inefficiencies, they were using bottled hydrogen and not manufactured on demand), but combustion & emissions benefits are a real thing.

*I used to be a hydrogen enthusiast/loony. I even made my own very high volume electrolysis hydrogen generators. I kept a proper open mind though (not a 'the man hides this secret tech' open mind, the kind of open mind where you thoroughly explore the merits behind any given argument). This paper ended that particular fantasy, as it was able to confirm why I thought hydrogen should work, in a worst case efficiency scenario (most room for improvement), and all my theories were correct. They also had energy usage numbers that actually stack up, against HHO generation.

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