Go Back   EcoModder Forum > EcoModding > General Efficiency Discussion
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 01-29-2014, 02:33 AM   #1 (permalink)
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 9,037

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: 215
Thanked 2,951 Times in 2,299 Posts
Ecomod gasoline generator

I got my $50 CL generator up and running really good. Its an old coleman 1875 watt generator on an old horizontal briggs 5hp.
I need 2 settings, a fuel saver mode and a power mode.
The power mode runs a cold air intake, and sets the generator to 63Hz and runs up to 125v. The power mode runs air compressors or welders.
The fuel saver setting I turn the generator down to about 50Hz which produces a little over 100v that can be boosted up to 120v with a varrac, that will run most gadgets that put a light load on the machine, charge power inverter batteries, stuff like that.
I think a warm air intake might help some. The generator will be out side and I will most likely need to run economy mode in winter during unexpected power outages.
EGR will be useless with out a way to advance the timing.
Then in power mode when I have to fire up the welder.

I also want to add a nice up sweeping straight pipe exhaust that I can add a muffler to. The straight up exhaust will blow poisonous CO up and away from people and the house. I need to figure out the best length to make the pipe. 2 or 3 feet will be no problem. More of a safety and power mod, not so much an economy mod.

__________________
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
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 01-29-2014, 07:58 AM   #2 (permalink)
Master EcoModder
 
Join Date: May 2012
Location: USA
Posts: 2,643
Thanks: 1,503
Thanked 276 Times in 226 Posts
Huh?

Most eco minded generators use a dc to ac converter and an electronically controlled throttle that ramps the engine rpms up and down as needed depending on the load. Since the output is done electronically the hz is the same regardles of rpms. Think of it as the gas motor is driving an alternator and that is powering an inverter.

The engine mods do the same across the board. Most small engines the exhaust is the most restrictive part because of the spark arrestor, noise damepning. The timing can be advanced by use of different keyways and some ignitions have some wiggle room to rotate the housing some as well as positioning of the magnetio to the flywheel.

You can also shave the block and or cylinder head to up the cr.
  Reply With Quote
Old 01-29-2014, 01:13 PM   #3 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,143

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)
Thanks: 2,449
Thanked 2,504 Times in 1,512 Posts
Interesting project. How do you plan on monitoring fuel efficiency and if your mods are doing any good?
__________________
Current project: A better alternator delete
  Reply With Quote
Old 01-29-2014, 01:19 PM   #4 (permalink)
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 9,037

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: 215
Thanked 2,951 Times in 2,299 Posts
To monitor fe I will use a kill-a-watt meter, timer and filling the gas tank all the way up.
__________________
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
The Following User Says Thank You to oil pan 4 For This Useful Post:
Daox (01-29-2014)
Old 01-29-2014, 01:20 PM   #5 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,143

CM400E - '81 Honda CM400E
90 day: 51.49 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)
Thanks: 2,449
Thanked 2,504 Times in 1,512 Posts
Do you have outtages that often? Gas would go bad long before I needed to use it here.
__________________
Current project: A better alternator delete
  Reply With Quote
The Following User Says Thank You to Daox For This Useful Post:
Cobb (01-29-2014)
Old 01-29-2014, 01:58 PM   #6 (permalink)
Master EcoModder
 
P-hack's Avatar
 
Join Date: Oct 2012
Location: USA
Posts: 1,408

awesomer - '04 Toyota prius
Thanks: 102
Thanked 249 Times in 201 Posts
I guess that is a fair point, I mean if the most you save is a couple gallons/year then how much tinkering is that worth? You might want to measure current gph at high load and again at low load for starters and see what the potential return is (with a small graduated tank presumably). You need some benchmarks. Serious gains might be rather involved (i.e. fuel injection, electronic ignition, custom ECU (arduino can handle it), egr and throttle solenoids, etc).
  Reply With Quote
Old 01-29-2014, 02:06 PM   #7 (permalink)
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 9,037

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: 215
Thanked 2,951 Times in 2,299 Posts
The main use will be powering the welder or air compressor in remote areas.
Plan is to normally keep it set up for high power use.

To keep the gas from going bad I use ethanol free gas with a little bit of 2 stroke oil.
For most outages I hope to just use power inverters. Only going to fire up the generator to cool down deep freezer and fridge and recharge inverter battery packs.
__________________
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 01-29-2014, 02:14 PM   #8 (permalink)
Master EcoModder
 
P-hack's Avatar
 
Join Date: Oct 2012
Location: USA
Posts: 1,408

awesomer - '04 Toyota prius
Thanks: 102
Thanked 249 Times in 201 Posts
I picked up a small 3hp generator at a garage sale for $35. If this 5hp is your bread and butter, you might want to leave it be (and be able to run the fridge while you are on the job leaving the 3hp @ home), might even get the smaller one to run on natural gas.
  Reply With Quote
Old 01-29-2014, 02:46 PM   #9 (permalink)
Master Ecomadman
 
arcosine's Avatar
 
Join Date: Nov 2010
Location: Chicago area
Posts: 1,137

sc1 - '98 saturn sc1
Team Saturn
90 day: 43.17 mpg (US)

Airplane Bike - '11 home built Carp line Tour

rans - '97 rans tailwind

tractor - '66 International Cub cadet 129

2002 Space Odyssey - '02 Honda Odyssey EX-L
90 day: 28.25 mpg (US)

red bug - '00 VW beetle TDI

big tractor - '66 ford 3400

red vw - '00 VW new beetle TDI
90 day: 58.42 mpg (US)
Thanks: 18
Thanked 318 Times in 216 Posts
You could lean out the mixture screw for eco mode, make the spark gap bigger, and put on a hot air intake. As long as it doesn't bog. Not much you can do with timing except make the point gap wider. Maybe thinner weight synthetic oil.
__________________
- Tony

  Reply With Quote
Old 01-29-2014, 03:50 PM   #10 (permalink)
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 9,037

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: 215
Thanked 2,951 Times in 2,299 Posts
The carb has fixed jets, there is an idle mixture screw. But since it idles at 3600rpm I dont think it will have much effect.
I will widen the spark gap, good idea. I forgot about that.

I will pick up bigger a diesel generator at some point. I have a requirement for 220v power that isnt currenty being met by my little 5hp gasoline unit.
Next one will have to put out at least 6kw.

__________________
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
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