Go Back   Pro/Forums > ProCooling Technical Discussions > General Liquid/Water Cooling Discussion
Password
Register FAQ Members List Calendar JavaChat Mark Forums Read

General Liquid/Water Cooling Discussion For discussion about Full Cooling System kits, or general cooling topics. Keep specific cooling items like pumps, radiators, etc... in their specific forums.

Reply
Thread Tools
Unread 11-19-2004, 02:04 PM   #1
gompka
Cooling Neophyte
 
Join Date: Nov 2004
Location: chicago
Posts: 11
Default Automotive fuel pump

Anyone ever use an automotive intank fuel pump as a pump for their water cooling system? I had a spare general motors fuel pump laying around. The pump is really small and its kinda loud at 12volts but I am running it at 7.2 volts. Draws about 2.5 amps of current but it can achieve 50 psi. So far its been working great. I am in the process of testing my setup that I just designed and built.
gompka is offline   Reply With Quote
Unread 11-19-2004, 08:35 PM   #2
greenman100
Cooling Savant
 
Join Date: Jun 2004
Location: Florida
Posts: 414
Default

low GPM
low life
high noise
good luck
__________________
"Employ your time in improving yourself by other men's writings, so that you shall gain easily what others have labored hard for."
--Socrates
"greenman100 = obnoxious ass hole"-gazorp
greenman100 is offline   Reply With Quote
Unread 11-19-2004, 11:10 PM   #3
killernoodle
Thermophile
 
killernoodle's Avatar
 
Join Date: Sep 2002
Location: Charlotte, NC
Posts: 1,014
Default

Actually, they will last forever, but I dont think they are very quiet. Low flow as well.
__________________
I have a nice computer.
killernoodle is offline   Reply With Quote
Unread 11-20-2004, 01:05 AM   #4
HammerSandwich
Cooling Savant
 
Join Date: Oct 2003
Location: 15143
Posts: 358
Default

Are you running it inline or submerged?
__________________
www.procooling.com: It's true we are often a bunch of assholes
HammerSandwich is offline   Reply With Quote
Unread 11-20-2004, 02:40 AM   #5
gompka
Cooling Neophyte
 
Join Date: Nov 2004
Location: chicago
Posts: 11
Default

I am running the pump submerged.... I have it mounted so its suspended in the water its not touching anything. I am actually running it 12volts now and in my case my power supply fan is louder than the pump. So no its not as noisy as you guys say it should be. This is a general motors pump from ur local autoparts store. I am testing it right now... so far so good running and no leaks I'll take pics for you guys as soon as i get a chance.

Compared with my ac pump i was running, which was 96 gph with a 12" head, this pump flows i'm guessing almost twice that. And from what I am seeing it is not putting much heat into my resovair water.


Last edited by gompka; 11-20-2004 at 02:46 AM.
gompka is offline   Reply With Quote
Unread 11-20-2004, 03:47 AM   #6
MaxxxRacer
Cooling Savant
 
MaxxxRacer's Avatar
 
Join Date: Sep 2004
Location: Los Angeles, Ca
Posts: 310
Default

sounds interesting..

what kind of fittings does it have?

Are you seeing any increase or decrease over your previous pump?

And what was your previous pump?
__________________

Excuse me, I believe you have my stapler.
MaxxxRacer is offline   Reply With Quote
Unread 11-20-2004, 05:15 AM   #7
lolito_fr
Cooling Savant
 
Join Date: Dec 2003
Location: France
Posts: 291
Default

If you take it apart (hint) I wanna see pics of the inside.
Q to anyone that has taken one apart, how does it pump at 50psi? Is it a positive displacement vane pump?

BTW, "last forever" for a car is not the same as last forever at 24/7 type usage...
100 000 miles @ 30mph is only 4-5 months running continuously
lolito_fr is offline   Reply With Quote
Unread 11-20-2004, 10:08 AM   #8
deathBOB
Cooling Neophyte
 
Join Date: Jan 2004
Location: Atlanta, GA
Posts: 60
Default

What about one of the pumps used for direct injection? Thier supposed to have crazy pressures... i believe the common rail diesel operates at like 1000 PSI... :shrug:
deathBOB is offline   Reply With Quote
Unread 11-20-2004, 10:34 AM   #9
Incoherent
Cooling Savant
 
Join Date: Sep 2003
Location: Vallentuna, Sweden
Posts: 410
Default

Quote:
Originally Posted by deathBOB
What about one of the pumps used for direct injection? Thier supposed to have crazy pressures... i believe the common rail diesel operates at like 1000 PSI... :shrug:
Your flow rate would be next to zero at the pressures a diesel injector pump runs at.

It would be interesting , but for a totally different type of water block, atomised water droplets impacting a baseplate...

It's been considered before.
Incoherent is offline   Reply With Quote
Unread 11-20-2004, 10:50 AM   #10
lolito_fr
Cooling Savant
 
Join Date: Dec 2003
Location: France
Posts: 291
Default

common rail diesel = 800-2000 BAR
(11000 - 30000 PSI!!!)
lolito_fr is offline   Reply With Quote
Unread 11-20-2004, 08:45 PM   #11
MaxxxRacer
Cooling Savant
 
MaxxxRacer's Avatar
 
Join Date: Sep 2004
Location: Los Angeles, Ca
Posts: 310
Default

the block would explode... and those are for injector nozzles.. suffice to say the flow is less than ideal with those...

but hey, if anyone is dumb enought to try it, more powerto them..
__________________

Excuse me, I believe you have my stapler.
MaxxxRacer is offline   Reply With Quote
Unread 11-20-2004, 08:54 PM   #12
ToasterIQ2000
Cooling Neophyte
 
Join Date: Oct 2004
Location: Gorky Island, WA USA
Posts: 22
Default

I've run a couple of automotive pumps.
The first was from a fuel injected Audi. It was an inline, as apposed to submerged, pump -- maybe that old Audi had another pump in the tank. Didn't occour to me that it depended on the gasoline for lubrication of its' bearings and brushes. This was several years ago. As best I remember it ran near 2 months, intermitant, not always on computing. The brush-commutator junction corroded horribly & it got noisy before it siezed. I cut it open and can't remember if I took pictures then, or where they'd be now... I thought then that any pump that ran its' flow across the brushes would be unfit for water: current through water splits water into h2 + 02; sparks ignite; iterate... Big hindsight Duh there.
I ran a rig on a smaller unknown make / model pump from C&H surplus that my bro said looked exactly like the pump out of his wife's ~1990 Dodge Caravan. In tank submerged, for fuel injection. It was a multi-stage gear pump. I used sythetic gear oil in that loop and wow that combo was quiet! One day I accidentally pinched a hose while it was running and dang things get messy fast at 80-140 psi. Imploded the Nalgene water bottle resevior / pump housing on the suction side.
Whle I'm tallying my grand achievments here ... I know its' off topic ... but if any of you ever clean the old gear oil residue out of a oil -> copper -> water power supply housing with white gas while changing a fuse ... wait a very long time or refill it with oil before powering it up.
ToasterIQ2000 is offline   Reply With Quote
Unread 11-20-2004, 09:43 PM   #13
killernoodle
Thermophile
 
killernoodle's Avatar
 
Join Date: Sep 2002
Location: Charlotte, NC
Posts: 1,014
Default

The fuel pump in my '90 benz is going on 200k miles... and the average speed for most cars is is far below 30, unless you drive it only on the highway.
__________________
I have a nice computer.
killernoodle is offline   Reply With Quote
Unread 11-20-2004, 10:38 PM   #14
Razor6
Cooling Savant
 
Razor6's Avatar
 
Join Date: Apr 2002
Location: Houston, TX
Posts: 192
Default

Here's a graph that includes two Walbro pumps. At 12V the 190ltr/hr pump would pull around 2.7A and the 255ltr/hr pump around 4.8A. They probably dissipate too much heat into the water to be concidered a good choice.



Data from here.
Attached Images
File Type: gif curves3.gif (18.3 KB, 83 views)

Last edited by Razor6; 11-20-2004 at 10:46 PM.
Razor6 is offline   Reply With Quote
Unread 11-21-2004, 01:19 AM   #15
gompka
Cooling Neophyte
 
Join Date: Nov 2004
Location: chicago
Posts: 11
Default

Toaster yes the pump does reply on the gasoline for lubrication but I am running 15% coolant in my system which will suffice for lubrication. In my pump the actual motor turning the gear box is sealed off in a water proof section of the pump body so it is not exposed to the water. It used a water pass through for cooling. I have this pump running for 48 hrs in the system now and temperatures are a few degrees lower than with my previous a/c pump so its not really adding too much heat to the water. We will see how long it lasts but it should last quite a while.
gompka is offline   Reply With Quote
Unread 11-21-2004, 12:04 PM   #16
bigben2k
Responsible for 2%
of all the posts here.
 
bigben2k's Avatar
 
Join Date: May 2002
Location: Texas, U.S.A.
Posts: 8,302
Default

For What It's Worth...

Some additives include mineral oil...
bigben2k is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 09:42 PM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2022, Jelsoft Enterprises Ltd.
(C) 2005 ProCooling.com
If we in some way offend you, insult you or your people, screw your mom, beat up your dad, or poop on your porch... we're sorry... we were probably really drunk...
Oh and dont steal our content bitches! Don't give us a reason to pee in your open car window this summer...