Electric water pump - The 1947 - Present Chevrolet & GMC Truck Message Board Network

farside847 · 08-31-2005, 06:40 PM

Had a crazy idea.... Ive been thinking about putting in an electric fan to save on gas and gain a little hp in the deal. So then I was thinking, hmmm, an electric water pump would take some more load off the engine too. So, I went to summit and searched and wouldnt you know, they exist. Are these things just for racers? Anyone used one?

kelsfine69 · 08-31-2005, 06:57 PM

Mostly for the track, They dont move enough water to cool on the steet

Tx Firefighter · 08-31-2005, 06:58 PM

They're not durable enough for continuous street use.

Besides, they don't save any energy. The alternator has to produce the extra power to drive the electric pump. There is no free power. It's all energy.

hgs_notes · 08-31-2005, 07:00 PM

From what I've heard, they don't work so well for daily drivers, something about them running at constant speed and not having enough flow at longtime highway speeds. But that may be pure BS. I'd just check the flow ratings and compare to a stock pump. One other thing though, the water pump really doesn;t use much power, they turn pretty easy and its a centrifugal pump, pretty efficient. A comparison could be made by finding the HP required for the electric pump.

I'm seriously looking at the electric fans though, just for the power.

HG

farside847 · 08-31-2005, 07:11 PM

Thanks guys, I thought as mutch....

*Javy* · 09-11-2005, 04:07 AM

Hello Farside,
When I built my 350 engine for my 56 Chevy Bel-Air,I wanted to max out
my horsepower so I went with an electric water pump from CSI.
They say you save 5-8 HP.It has never failed me after driving from
Los Angeles to Hot August Nights in Lake Tahoe back thru Yosimitie
back to Los Angeles.I recently installed a mechanical water pump
on my 56 to eliminated what might be a weak link in my car but if you
need an edge to win a race,do what you can !

*Javy* · 09-11-2005, 04:12 AM

Don't forget.If your electric water pump works hard,
so does your alterrnater.

chevybill · 09-11-2005, 11:20 AM

there is much info on this over on the z 28 forum, when the electric pump goes, it is just like a fuse (pop) and you have no water pump. some of those guys carry a spare with them, just like extra fuses.

08-31-2005, 06:40 PM	#1
farside847 Registered User Join Date: Feb 2005 Location: Bay Area, California Posts: 995	Electric water pump Had a crazy idea.... Ive been thinking about putting in an electric fan to save on gas and gain a little hp in the deal. So then I was thinking, hmmm, an electric water pump would take some more load off the engine too. So, I went to summit and searched and wouldnt you know, they exist. Are these things just for racers? Anyone used one? __________________ 1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree

08-31-2005, 06:58 PM	#3
Tx Firefighter Watch out for your cornhole ! Join Date: Jun 2003 Location: Azle, Texas Posts: 14,162	They're not durable enough for continuous street use. Besides, they don't save any energy. The alternator has to produce the extra power to drive the electric pump. There is no free power. It's all energy. __________________ I'm on the Instagram- @Gearhead_Kevin

08-31-2005, 07:00 PM	#4
hgs_notes GEARHEAD Join Date: Aug 2003 Location: MN Posts: 6,126	From what I've heard, they don't work so well for daily drivers, something about them running at constant speed and not having enough flow at longtime highway speeds. But that may be pure BS. I'd just check the flow ratings and compare to a stock pump. One other thing though, the water pump really doesn;t use much power, they turn pretty easy and its a centrifugal pump, pretty efficient. A comparison could be made by finding the HP required for the electric pump. I'm seriously looking at the electric fans though, just for the power. HG __________________ If no one knows what you're doing, they can't tell you you're doing it wrong HG's Dream Car Build - Shelby Cobra Kit Build your own adjustable track bar 71 Long Fleet C/10 72 Jimmy 4x4 (Junkyard Jimmy) HG's Plow Truck '78 K35 Dually Bigass Farm Truck HG's thread of miscellaneous stuff

08-31-2005, 07:11 PM	#5
farside847 Registered User Join Date: Feb 2005 Location: Bay Area, California Posts: 995	Thanks guys, I thought as mutch.... __________________ 1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree

09-11-2005, 11:20 AM	#8
chevybill Senior Member Join Date: Oct 2004 Location: calhoun city ms Posts: 940	there is much info on this over on the z 28 forum, when the electric pump goes, it is just like a fuse (pop) and you have no water pump. some of those guys carry a spare with them, just like extra fuses. __________________ ongoing 1970 c 10 lwb 1994 z-28 few mods.-owned since new 1978 vette silver/grey 25th anniv. paint

08-31-2005, 06:57 PM	#2
kelsfine69 18 Till I Die Join Date: Mar 2005 Location: Alberta, Canada Posts: 1,522	Mostly for the track, They dont move enough water to cool on the steet

09-11-2005, 04:07 AM	#6
Javy Account Suspended Join Date: Jan 2004 Posts: 129	Hello Farside, When I built my 350 engine for my 56 Chevy Bel-Air,I wanted to max out my horsepower so I went with an electric water pump from CSI. They say you save 5-8 HP.It has never failed me after driving from Los Angeles to Hot August Nights in Lake Tahoe back thru Yosimitie back to Los Angeles.I recently installed a mechanical water pump on my 56 to eliminated what might be a weak link in my car but if you need an edge to win a race,do what you can !

09-11-2005, 04:12 AM	#7
Javy Account Suspended Join Date: Jan 2004 Posts: 129	Don't forget.If your electric water pump works hard, so does your alterrnater.

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