Go Back   EcoModder Forum > EcoModding > EcoModding Central
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 04-25-2018, 11:00 AM   #21 (permalink)
EcoModding Apprentice
 
Join Date: Oct 2010
Location: ireland
Posts: 102
Thanks: 8
Thanked 52 Times in 34 Posts
Using my Ultra Gauge, I have taken some fuel flow rates at a selection of idle speeds.

Engine Fuel MAP
Speed Flow
(rpm) (G/hr) (psi)
750 0.14 3.8
1000 0.17 3.48
1250 0.21 3.34
1500 0.23 3.05
1750 0.29 3.19
2000 0.31 3.19

As my car has a MAP sensor with no MAF, the Ultra Gauge appears to assign a VE of 75% across the whole load/speed range and then calculates the air flow based on the manifold air density and this assumed VE. The fuel flow is then proportional to the air flow.

I am curious if any North American owners have measured idle fuel flows as their cars have a MAF sensor and thus the fuel numbers should be more accurate?


Last edited by cr45; 04-25-2018 at 11:06 AM..
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 05-12-2018, 10:44 AM   #22 (permalink)
EcoModding Apprentice
 
Join Date: Oct 2010
Location: ireland
Posts: 102
Thanks: 8
Thanked 52 Times in 34 Posts
Mirror Delete

Deleted passenger mirror today and subsequently got a new mpg best on a 14 mile out and back trip that I have driven approx 10 times in this car. I always glide on down slopes when I can on this route as the traffic is very light.

New best 69.11 mpg US / 83 mpg IMP / 3.4 lit/100km

Engine started from cold - 62 oF water temp

Previous best on this route was 64.95 mpg US / 78 mpg IMP

The car appeared to glide with less retardation in speed compared to normal.

Just need some white insulation tape now to replace the green!
Attached Thumbnails
Click image for larger version

Name:	car_minus_mirror_01.jpg
Views:	23
Size:	46.3 KB
ID:	24163   Click image for larger version

Name:	car_minus_mirror_02.jpg
Views:	85
Size:	34.0 KB
ID:	24164  
  Reply With Quote
Old 05-12-2018, 11:20 AM   #23 (permalink)
Cyborg ECU
 
California98Civic's Avatar
 
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 2,373
Thanked 2,174 Times in 1,470 Posts
Quote:
Originally Posted by cr45 View Post
... Just need some white insulation tape now to replace the green!
Nice updates. Instead of tape, you might make a filler plate out of a white or gray plastic, prime it, and paint it an OEM white if you want maximum stealth. Alternately, a black plate to look like trim. There are examples of the builds already on EM. Search top left.

Did you get the lithium? How is it going?
__________________
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.



  Reply With Quote
Old 05-13-2018, 05:43 PM   #24 (permalink)
EcoModding Apprentice
 
Join Date: Oct 2010
Location: ireland
Posts: 102
Thanks: 8
Thanked 52 Times in 34 Posts
New Absolute best mpg - 76.44 US mpg

Noticed there was next to no wind this evening and decided to take the car on a 22 mile circular route - non stop.

Used pulse and glide and a 42 mph top speed.

Engine was idling during glides.

Parked up on 76.44 mpg US / 91.8 mpg IMP / 3.077 lit/100 km

This is equivalent to a diesel doing 2.797 lit/100 km from both a thermal efficiency and a CO2 point of view.

  Reply With Quote
Reply  Post New Thread






Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com