Go Back   EcoModder Forum > EcoModding > Hypermiling / EcoDriver's Ed
Register Now
 Register Now
 

View Poll Results: What gauge do you use most
Fuel System Loop Status 0 0%
Manifold Absolute Pressure/Boost 1 3.33%
Instant Fuel Economy 23 76.67%
Throttle Position Sensor 10 33.33%
Temperatures 15 50.00%
Average Fuel Economy 22 73.33%
Intake Air Pressure 0 0%
Engine Loading 12 40.00%
Fuel Pressure 1 3.33%
Ignition Timing 2 6.67%
Multiple Choice Poll. Voters: 30. You may not vote on this poll

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 09-27-2011, 11:57 AM   #21 (permalink)
Master EcoModder
 
mcrews's Avatar
 
Join Date: Oct 2009
Location: Texas
Posts: 3,523

The Q Sold - '02 Infiniti Q45 Sport
90 day: 23.08 mpg (US)

blackie - '14 nissan altima sv
Thanks: 2,203
Thanked 658 Times in 474 Posts
LOAD & IGN
can be used if you are running a different octane and what to see the result or effect.

__________________
MetroMPG: "Get the MPG gauge - it turns driving into a fuel & money saving game."

ECO MODS PERFORMED:
First: ScangaugeII
http://ecomodder.com/forum/showthrea...eii-23306.html

Second: Grille Block
http://ecomodder.com/forum/showthrea...e-10912-2.html

Third: Full underbelly pan
http://ecomodder.com/forum/showthrea...q45-11402.html

Fourth: rear skirts and 30.4mpg on trip!
http://ecomodder.com/forum/showthrea...tml#post247938
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 09-27-2011, 06:42 PM   #22 (permalink)
EcoModding Apprentice
 
Join Date: Sep 2011
Location: Columbus, Ga
Posts: 154

Whitey - '10 Ford Ranger XL
Pickups
90 day: 33.74 mpg (US)

Hershey - '13 Nissan Altima SL
90 day: 28.68 mpg (US)

Midas - '10 Toyota Prius two
Thanks: 15
Thanked 14 Times in 10 Posts
Thanks for the input guys. Is my scangauge just not calibrated then? I see 99 LOD very often, so right now when I'm in my pulse phase I try for low 90's. I was reading up on BSFC last night and now I want to try to find the chart for my truck but have had no luck so far.
__________________


Check out my facebook page, if you feel like watching my progress.
http://www.facebook.com/pages/MPGran...007268?sk=wall
  Reply With Quote
Old 09-27-2011, 06:44 PM   #23 (permalink)
Efficiency Aficionado
 
CigaR007's Avatar
 
Join Date: Jul 2010
Location: Province of Québec
Posts: 605

GreenTurtle - '01 Toyota Echo Sedan
90 day: 44.85 mpg (US)

Zulu - '14 Honda CR-Z
90 day: 39.58 mpg (US)
Thanks: 135
Thanked 135 Times in 94 Posts
For some reason LOD never goes over 84-85 on my car.
  Reply With Quote
Old 09-28-2011, 09:08 AM   #24 (permalink)
Hypermiler
 
PaleMelanesian's Avatar
 
Join Date: Dec 2007
Location: Texas
Posts: 2,300

PaleCivic (retired) - '96 Honda Civic DX Sedan
90 day: 69.2 mpg (US)

PaleFit - '09 Honda Fit Sport
Team Honda
Wagons
90 day: 52.07 mpg (US)
Thanks: 573
Thanked 409 Times in 269 Posts
If you can't find a specific BSFC chart for your car (likely - most of us can't), just use the general ones to get a close approximation. Working from that is something like 95% as good as one specific to your car.
__________________



11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
  Reply With Quote
Old 09-28-2011, 06:18 PM   #25 (permalink)
EcoModding Apprentice
 
Join Date: Sep 2011
Location: Columbus, Ga
Posts: 154

Whitey - '10 Ford Ranger XL
Pickups
90 day: 33.74 mpg (US)

Hershey - '13 Nissan Altima SL
90 day: 28.68 mpg (US)

Midas - '10 Toyota Prius two
Thanks: 15
Thanked 14 Times in 10 Posts
Where is the general BSFC map?
__________________


Check out my facebook page, if you feel like watching my progress.
http://www.facebook.com/pages/MPGran...007268?sk=wall
  Reply With Quote
Old 09-28-2011, 06:28 PM   #26 (permalink)
Efficiency Aficionado
 
CigaR007's Avatar
 
Join Date: Jul 2010
Location: Province of Québec
Posts: 605

GreenTurtle - '01 Toyota Echo Sedan
90 day: 44.85 mpg (US)

Zulu - '14 Honda CR-Z
90 day: 39.58 mpg (US)
Thanks: 135
Thanked 135 Times in 94 Posts
Quote:
Originally Posted by MPGranger View Post
Where is the general BSFC map?
You can find some here : Brake Specific Fuel Consumption (BSFC) Maps - EcoModder
  Reply With Quote
The Following User Says Thank You to CigaR007 For This Useful Post:
MPGranger (09-28-2011)
Old 09-28-2011, 10:25 PM   #27 (permalink)
EcoModding Apprentice
 
Join Date: Sep 2011
Location: Columbus, Ga
Posts: 154

Whitey - '10 Ford Ranger XL
Pickups
90 day: 33.74 mpg (US)

Hershey - '13 Nissan Altima SL
90 day: 28.68 mpg (US)

Midas - '10 Toyota Prius two
Thanks: 15
Thanked 14 Times in 10 Posts
OK, another stupid question: the islands are labeled with numbers in the hundreds like 370, but my LOD rating only goes to 99, so how do I convert the BSFC number to loading?

Also: If loading is percent of work the engine is presently capable of, how does my scangauge figure out how much work my engine can do?
__________________


Check out my facebook page, if you feel like watching my progress.
http://www.facebook.com/pages/MPGran...007268?sk=wall
  Reply With Quote
Old 09-29-2011, 09:44 AM   #28 (permalink)
Hypermiler
 
PaleMelanesian's Avatar
 
Join Date: Dec 2007
Location: Texas
Posts: 2,300

PaleCivic (retired) - '96 Honda Civic DX Sedan
90 day: 69.2 mpg (US)

PaleFit - '09 Honda Fit Sport
Team Honda
Wagons
90 day: 52.07 mpg (US)
Thanks: 573
Thanked 409 Times in 269 Posts
LOD is roughly tied to the vertical axis on the charts. Find the LOD and RPM combination that's on the top island and try to use that. It's usually somewhere around 2000 rpm and 75% load.

LOD is calculated from the quantity of air flowing through the engine. Only a certain amount of air can pump through a specific engine size, so you can compare what IS going through to what COULD go through. There's a specific ideal ratio of air to fuel for a good burn, so from that you can calculate how much fuel is going through.
__________________



11-mile commute: 100 mpg - - - Tank: 90.2 mpg / 1191 miles
  Reply With Quote
Old 09-30-2011, 02:23 PM   #29 (permalink)
Master EcoModder
 
euromodder's Avatar
 
Join Date: Jul 2010
Location: Belgium
Posts: 4,600

GasDwarf - '13 Volkswagen up! EcoFuel CNG
Thanks: 168
Thanked 600 Times in 475 Posts
Quote:
Originally Posted by MPGranger View Post
OK, another stupid question: the islands are labeled with numbers in the hundreds like 370, but my LOD rating only goes to 99, so how do I convert the BSFC number to loading?
The numbers along the lines indicate fuel consumption - grams per kWh produced - so lower numbers are better.

The vertical line is engine Torque, which relates to engine loading.

Note this BSFC map is used for acceleration only.


Good BSFC doesn't mean best fuel consumption, it just means you're producing the most HP for the fuel being used.
Usually (during constant speed driving) you don't need as much HP, the BSFC is worse, but as you only need very few HP, your fuel consumption is good.
__________________
GasDwarf's fuel consumption :
  Reply With Quote
Old 09-30-2011, 04:35 PM   #30 (permalink)
EcoModding Apprentice
 
Join Date: Sep 2011
Location: Columbus, Ga
Posts: 154

Whitey - '10 Ford Ranger XL
Pickups
90 day: 33.74 mpg (US)

Hershey - '13 Nissan Altima SL
90 day: 28.68 mpg (US)

Midas - '10 Toyota Prius two
Thanks: 15
Thanked 14 Times in 10 Posts
So I just need to eyeball the engine loading then?

Also, if I hit 99 LOD with the accelerator half depressed, what happens when I continue to press the pedal?

__________________


Check out my facebook page, if you feel like watching my progress.
http://www.facebook.com/pages/MPGran...007268?sk=wall
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com