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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 01-25-2012, 06:44 AM   #21 (permalink)
dcb
needs more cowbell
 
dcb's Avatar
 
Join Date: Feb 2008
Location: ˙
Posts: 5,038

pimp mobile - '81 suzuki gs 250 t
90 day: 96.29 mpg (US)

schnitzel - '01 Volkswagen Golf TDI
90 day: 53.56 mpg (US)
Thanks: 158
Thanked 267 Times in 210 Posts
Nice!

FYI, my saturn idles at about 0.3 gph. This looks to have a lower limit of about 0.5gph. Not a big deal if you hardly idle, but just fyi. It would be good to see how it tracks on a tank to tank basis.

__________________
WINDMILLS DO NOT WORK THAT WAY!!!
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 01-26-2012, 08:43 PM   #22 (permalink)
EcoModding Lurker
 
Join Date: May 2011
Location: Southern Skies Australia
Posts: 49
Thanks: 6
Thanked 7 Times in 6 Posts
Carb flow sensor & speed sensor

the flowsensor has a 1.3mm orifice at the inlet to the paddle wheel ,even though it has a 5/16" hose fitting ,I am hoping adding more sensors will allow it to work with lower flow rates.

As for the speed sensor ,see attatched picture ,it uses the same hall effect sensor I have used to mod the flow sensor .
I have left it unpotted & exposed until I have tested it further.
So far the speed sensor works ok & it's simple (three electronic components & two magnets).
Attached Thumbnails
Click image for larger version

Name:	espeed3.jpg
Views:	71
Size:	86.1 KB
ID:	10146  
  Reply With Quote
Old 01-26-2012, 08:47 PM   #23 (permalink)
EcoModding Lurker
 
Join Date: May 2011
Location: Southern Skies Australia
Posts: 49
Thanks: 6
Thanked 7 Times in 6 Posts
speed sensor for carb engines

a better photo of the speed sensor
Attached Thumbnails
Click image for larger version

Name:	espeed1.jpg
Views:	86
Size:	50.5 KB
ID:	10148  

Last edited by TheTestPilot; 01-26-2012 at 08:49 PM.. Reason: typo
  Reply With Quote
The Following User Says Thank You to TheTestPilot For This Useful Post:
dcb (01-27-2012)
Old 01-26-2012, 09:01 PM   #24 (permalink)
...beats walking...
 
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,522 Times in 1,123 Posts
...hey, TestPilot, there's some info about the Flo-Scan™/Space-Kom meter is this earlier posting:

http://ecomodder.com/forum/showthrea...eup-18198.html
  Reply With Quote
Old 01-26-2012, 09:36 PM   #25 (permalink)
EcoModding Lurker
 
Join Date: May 2011
Location: Southern Skies Australia
Posts: 49
Thanks: 6
Thanked 7 Times in 6 Posts
Thanks Old Tele Man
Yes I did see that post. My motivation for the flow sensor was to replace my old Zemco sensor ,that dies about 5 years ago. . I spent enormous amounts of time trying to stop it reading the vapour ,about 15 years ago,I gave up.
At The moment this sensor looks good as far as vapour goes ,it's summer here ,but low temps ,about 28 c ,so still testing.
  Reply With Quote
Old 01-27-2012, 02:31 AM   #26 (permalink)
My way is the low way
 
Superturnier's Avatar
 
Join Date: Jun 2009
Location: Finland
Posts: 64

MyoldFord - '65 Ford Taunus 20M Turnier
90 day: 27.59 mpg (US)

Plastic Spaceship - '94 Renault Espace
90 day: 24.03 mpg (US)

Sussu - '82 Suzuki Alto
Thanks: 4
Thanked 17 Times in 8 Posts
I've had problems with the vapor too. I've tried many different things to prevent the Zemco counting the bubbles. Last summer I took the sensor off the car, as the hot weather + 2hr at highway resulted in a total vapour lock and the engine did not get any fuel.
Then I decided to get an electric fuel pump, Hoping it would solve vapour problems. Maybe I get it installed for next summer.

Are you using this new flow (and speed) sensor with MPGuino?
I would be interested, how have you connected the hall sensors to it?
I quess you need a few electrical components to adapt the signal for MPGino?
Any schematics?
__________________

Summer vehicle


My dad's tire pressure is much higher than your dad's!
  Reply With Quote
Old 01-27-2012, 04:44 PM   #27 (permalink)
...beats walking...
 
Join Date: Jul 2009
Location: .
Posts: 6,190
Thanks: 179
Thanked 1,522 Times in 1,123 Posts
...have you considered installing one of the 1970's MoPar "vapor-seporator" fuel filter cans just before the flow-meter unit?

...I'll try to find a picture (below), but it basically was a regular fuel-filter assembly with three pipes: an inlet on bottom and two outlets: one for FUEL to carburetor and one for returning VAPORS to gas tank.

...here's a picture of a HASTINGS GF84 replacement unit:


Last edited by gone-ot; 01-27-2012 at 04:51 PM..
  Reply With Quote
Old 01-27-2012, 05:42 PM   #28 (permalink)
My way is the low way
 
Superturnier's Avatar
 
Join Date: Jun 2009
Location: Finland
Posts: 64

MyoldFord - '65 Ford Taunus 20M Turnier
90 day: 27.59 mpg (US)

Plastic Spaceship - '94 Renault Espace
90 day: 24.03 mpg (US)

Sussu - '82 Suzuki Alto
Thanks: 4
Thanked 17 Times in 8 Posts
Quote:
Originally Posted by Old Tele man View Post
...have you considered installing one of the 1970's MoPar "vapor-seporator" fuel filter cans just before the flow-meter unit?
I quess you meant this question for me?

Well, the answer is no, since I never had seen or heard of this kind of separator before.
But I created a system of my own. Since the mechanical fuel pump attached to engine block gets hot, it will make the fuel boil. Especially when the flow is slow. (and I have tried insulating gaskets in between) And the bubbles will expand in both ways.
So I installed the flow sensor before the fuel pump and also put 1 meter of fuel hose and a big fuel filter in front of the sensor to catch the bubbles.
This setup helped to get more accurate readings, but there was also quite big delay in the readings.
But I hope that the electrical fuel pump will solve the vapour things, since it's not connected to the hot engine.
__________________

Summer vehicle


My dad's tire pressure is much higher than your dad's!
  Reply With Quote
Old 01-27-2012, 06:47 PM   #29 (permalink)
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 9,174

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
SUV
90 day: 141.63 mpg (US)
Thanks: 222
Thanked 3,002 Times in 2,337 Posts
Hows this one?
Kind of cheap with a high lower limit read out.

NavMan Fuel Gauge Model F2100
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
  Reply With Quote
Old 01-29-2012, 05:58 PM   #30 (permalink)
EcoModding Lurker
 
Join Date: May 2011
Location: Southern Skies Australia
Posts: 49
Thanks: 6
Thanked 7 Times in 6 Posts
The Flow & speed sensor Photos I have posted ,are being used with the mpguino currently,my old zemco was retired when I bought the mpguino .
As for vapour separators ,I used one from a 70's 430 mercury wagon ,it worked ok but the zemco flow sensor could have been though out better ,the optical sensor is just too sensitive .
Later today ,I will post the circuit for the speed /flow sensor here.It's relatively simple so everyone should be able to coble one together.

Attached Thumbnails
Click image for larger version

Name:	guinospeed1.jpg
Views:	68
Size:	24.4 KB
ID:	10166  

Last edited by TheTestPilot; 01-29-2012 at 09:00 PM.. Reason: added speed circuit
  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com