Go Back   EcoModder Forum > EcoModding > DIY / How-to
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 09-18-2008, 06:00 PM   #11 (permalink)
Batman Junior
 
MetroMPG's Avatar
 
Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 21,200

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.8 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 73.57 mpg (US)
Thanks: 2,965
Thanked 5,808 Times in 3,013 Posts
Quote:
Originally Posted by larryrose11 View Post
I know a bit about electric water pumps...
That was some good info, thanks.

__________________
Latest mods test: 15 mods = 15% MPG improvement: A-B test, 2007 Honda Civic 1.8L, 5-speed
Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 09-18-2008, 06:49 PM   #12 (permalink)
EcoModding Apprentice
 
CobraBall's Avatar
 
Join Date: May 2008
Location: North Texas
Posts: 112
Thanks: 0
Thanked 2 Times in 2 Posts
Electrical water pumps are common in auto racing.
<http://www.jegs.com/webapp/wcs/stores/servlet/category_10001_10002_10135_-1_10131>

They can be controlled electronically to adjust the rate of coolant flow "even after engine shut down".

Plan on purchasing an extra motor. You can get a engine driven mechanical water pump just about anywhere. Try to find the replacement water pump electric motor at your local Auto Zone.

I considered putting an electrical water pump on my '33 Ford but gave up the idea. Most electrical water pump mgfs. say they pumps are for racing only.

Simple is usually more reliable.
  Reply With Quote
Old 10-16-2008, 03:25 PM   #13 (permalink)
EcoModding Apprentice
 
CobraBall's Avatar
 
Join Date: May 2008
Location: North Texas
Posts: 112
Thanks: 0
Thanked 2 Times in 2 Posts
Excellent discussion for an Electric Water Pump installation.

EWP Installation
  Reply With Quote
Old 10-16-2008, 03:30 PM   #14 (permalink)
Master EcoModder
 
Join Date: Sep 2008
Location: Texas
Posts: 632
Thanks: 0
Thanked 25 Times in 23 Posts
At the same time, a heating element in a pipe can be installed inline with the bypass and a simple control circuit used to make a crankcase heater.
__________________
If America manages to eliminate obesity, we would save as much fuel as if every American were to stop driving for three days every year. To be slender like Tiffany Yep is to be a real hypermiler...

Allie Moore and I have a combined carbon footprint much smaller than that of one average American...
  Reply With Quote
Old 10-16-2008, 04:52 PM   #15 (permalink)
EcoModding Lurker
 
Join Date: Jul 2008
Location: Spring TX
Posts: 62

F150 - '97 Ford F150 Lariat

Taurus - '02 Ford Taurus SE

the 73 - '73 Ford Thunderbird

the race car - '95 Ford Thunderbird LX

The Brick - '98 Buick LeSabre Limited
Thanks: 0
Thanked 0 Times in 0 Posts
electric water pumps.

they work great on daily drivers.

they also work great on race cars.

I run one on my 95 bird....the beauty of it for me, is I can cool the car off(going from 190 degrees to 170 degress in minutes) in the staging lanes before the next race, with the engine off!

parasistic drag from any accessory hurts any kind of mileage or power.
depending on the vehicle make, some e-water pumps come with an idler pulley built in, so belt routing stays the same.



  Reply With Quote
Old 10-17-2008, 11:08 AM   #16 (permalink)
Master EcoModder
 
Join Date: Jul 2008
Location: Tallmadge, OH
Posts: 313
Thanks: 6
Thanked 25 Times in 20 Posts
Efficientcy question

Ok, I like not having the drag on the belt driven waterpump on my engine. Since the E-pump will have to runn all of the time, how much more drag will be placed on the engine due to the alternator supplying power for the extra electrical load?

Since there are probably soooo many variables, let's limit replies to hypermiling road vehicles with a small V-6 or less ICE. Thanks
  Reply With Quote
Old 10-17-2008, 01:20 PM   #17 (permalink)
EcoModding Lurker
 
Join Date: Jul 2008
Location: Spring TX
Posts: 62

F150 - '97 Ford F150 Lariat

Taurus - '02 Ford Taurus SE

the 73 - '73 Ford Thunderbird

the race car - '95 Ford Thunderbird LX

The Brick - '98 Buick LeSabre Limited
Thanks: 0
Thanked 0 Times in 0 Posts
the one pictured above, only has a 7 amp draw.

http://store.summitracing.com/partde...5&autoview=sku
  Reply With Quote
Old 10-17-2008, 10:13 PM   #18 (permalink)
Master EcoModder
 
Join Date: Sep 2008
Location: Texas
Posts: 632
Thanks: 0
Thanked 25 Times in 23 Posts
Quote:
Hey guys,
First of all, I wouldn't undertake something like this if you are not comfortable programming a micro computer of some sort, like an Motorola HC11.
Your effots could be put in a better place, like switching over to a manual rack and pinion steering, or plug in battery w/ alternator field kill switch.
Isn't the PWM control just a matter of using a MOSFET controlled by a common PWM chip? For temperature feedback, just mount a sensor on a pipe and use it to increase the duty cycle of the MOSFET. And maybe also add a PWM circuit for the radiator fan as well, and perhaps a servo motor for opening and closing the vents.

BTW, a friend of mine showed me a "desktop supercomputer" she designed the cooling system for. It was complex enough that the cooling system, consisting of a 2HP BLDC scroll compressor, R-410a refrigerant, a large condenser, 9 PZEVs (8 for the main CPUs, one for compressor cooling), and 8 evaporators, had a 200MHz CPU just to run it! Of course, that was because the CPUs had to be kept below -40C to operate correctly. An automobile engine is nowhere near as sensitive to temperature variations as a high performance CPU.
__________________
If America manages to eliminate obesity, we would save as much fuel as if every American were to stop driving for three days every year. To be slender like Tiffany Yep is to be a real hypermiler...

Allie Moore and I have a combined carbon footprint much smaller than that of one average American...
  Reply With Quote
Old 12-30-2008, 11:22 PM   #19 (permalink)
Sequential
 
Concrete's Avatar
 
Join Date: Jun 2008
Location: Kansas
Posts: 177

The Truck - '00 Chevy S10 Extended Cab
90 day: 22.47 mpg (US)
Thanks: 0
Thanked 21 Times in 6 Posts
I don't think you have to build your own controller any more
check this out - I've been drooling about it for a while
EMP/Stewart Components E558AR - EMP Stewart Electric Water Pumps - summitracing.com

55GPH - 10,000 hrs estimated life - 8 amps - inline and small
I'm guessing with the box on the side & the reliability expected, the motor is brushless

only thing holding me back is the price
__________________
Concrete
Start where you are - Use what you have - Do what you can.
  Reply With Quote
Old 12-31-2008, 01:09 AM   #20 (permalink)
Master EcoModder
 
Join Date: Aug 2008
Location: South Dakota
Posts: 460

WonderWagon - '94 Ford Escort LX
Last 3: 51.52 mpg (US)

DaBluOne - '99 Ford Escort SE
90 day: 48.97 mpg (US)

DaRedOne - '99 Ford Escort ZX2 Hot
Thanks: 0
Thanked 15 Times in 4 Posts
Quote:
Originally Posted by Tango Charlie View Post
I think most thermostats have a small hole in them so they still circulate a small amount of coolant when closed. At least the thermostats that I've seen.
No to source to cite (other than myself), but it is an over simplification to think of an automotive thermostat as simply a two state (on/off) device.

If you take a new one and toss it in to a pot of cold water on a stove over low heat, you'll see it slowly open as the water temperature nears the thermostat's nominal operating temperature.

__________________
  Reply With Quote
Reply  Post New Thread


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Converting power steering to electric power steering Daox EcoModding Central 54 01-17-2017 07:16 PM
Electric assist for SUV? Tony Raine EcoModding Central 8 10-15-2012 09:17 PM
“Revenge of the Electric Car” Coming in 2009 SVOboy EcoModder Blog Discussion 18 03-28-2012 08:24 PM
Turning off electric hot water heater when not home? ZachUA Saving@Home 33 12-09-2009 10:51 AM
Article: Electric Subaru Due in 2009, One Year Early MetroMPG Fossil Fuel Free 8 08-29-2009 01:19 AM



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