electric water pump? good idea? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

joelboxt · 05-06-2005, 07:57 PM

have noticed electric water pumps for sale lately are they a good idea for a weekend driver? i would assume you would maybe need a higher amp alternator? what are the pro's and con's of electric pumps ver. the belt drive units?

thanks,

joel

68w/sbc406 · 05-06-2005, 08:03 PM

good question, inquiring minds want to know

bigjimzlll · 05-06-2005, 08:06 PM

The biggest advantage to an electric water pump is the ability to cool the engine down between rounds of drag racing. They can cut some parasititic drag(15HP) along with an electric fan your looking at 30-35HP. I have used the moroso drive kit and a proform electric water pump. They both seem to put ot plenty of water(cool a 12.5-1 406 on N20)...never goes above 190 without a T stat. They also weigh less than a cast pump with pulley and belt.

You will need to fab an alternator brkt or get an after market on(too shorten the belt)

Longhorn Man · 05-06-2005, 08:49 PM

Acording to what I've read, they don't really flow enough for the street.

cdowns · 05-06-2005, 08:50 PM

well the one thing i can think of if a conventional pump fails you can go into any parts store anywhere and get a replacement for about $20 replace it and be back on the road in less than an hour, happened to me when i was moving from n.y. to fla . with an electric who knows you might be in a motel for a few days or more then end up having to buy all the pulleys and stuff to switch back to conventional just to get on the road again.

68w/sbc406 · 05-06-2005, 09:15 PM

well what is the gpm on a conventional pump during light to light driving compared to an electric one??

GloryHound · 05-06-2005, 09:24 PM

I've heard the electric really are not meant for street use. They tend to wear out more quickly and do not work well with an old style thermostat unless you use a seperate thermastat that can turn a relay on to turn the pump on once you usual thermostat has opened up. If you run with out a thermostat in the housing you could end up with no heater in the winter or on a cold morning.

kelsfine69 · 05-06-2005, 09:40 PM

Had a stock BBC pump, switched to Moroso drive kit. Ran too hot not good for steet use , Now have aluminum Edelbrock pump....much beter cooling. They have a CNC machined impeller compared to other stamped steel impellers

05-06-2005, 07:57 PM	#1
joelboxt 71 Cheyenne SWB Fleetside Join Date: Jan 2005 Location: Sarnia, Ontario, Canada Posts: 403	electric water pump? good idea? have noticed electric water pumps for sale lately are they a good idea for a weekend driver? i would assume you would maybe need a higher amp alternator? what are the pro's and con's of electric pumps ver. the belt drive units? thanks, joel __________________

05-06-2005, 08:03 PM	#2
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	good question, inquiring minds want to know __________________ 1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler

05-06-2005, 08:06 PM	#3
bigjimzlll Senior Member Join Date: Dec 2001 Location: Redding,CA...USA Posts: 4,736	The biggest advantage to an electric water pump is the ability to cool the engine down between rounds of drag racing. They can cut some parasititic drag(15HP) along with an electric fan your looking at 30-35HP. I have used the moroso drive kit and a proform electric water pump. They both seem to put ot plenty of water(cool a 12.5-1 406 on N20)...never goes above 190 without a T stat. They also weigh less than a cast pump with pulley and belt. You will need to fab an alternator brkt or get an after market on(too shorten the belt) __________________ It's called "drag racing" if they called it "tic..tic..WHAM!..BANG! F*&K!!!", they'd have to keep the magazines under the counter with the other men's publications click the clicky to join the site.... http://67-72chevytrucks.com/vboard/payments.php 67 lwb..first hotrod in 25 years..540 best ET is 9.45 @ 141.44 Anderson,CA

05-06-2005, 08:50 PM	#5
cdowns Senior Member Join Date: Jan 2003 Location: daytonabeach Posts: 22,956	well the one thing i can think of if a conventional pump fails you can go into any parts store anywhere and get a replacement for about $20 replace it and be back on the road in less than an hour, happened to me when i was moving from n.y. to fla . with an electric who knows you might be in a motel for a few days or more then end up having to buy all the pulleys and stuff to switch back to conventional just to get on the road again. __________________ 71c-10 350/2004r/4:11 lowered3/4 longbed/dead by hurricane MEANING OF DEATH::::: SOMEBODY ELSE GETS YOUR STUFF DONT BELIEVE EVERYTHING YOU THINK TAKE MY ADVISE;I DON'T USE IT ANYWAY

05-06-2005, 09:15 PM	#6
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	well what is the gpm on a conventional pump during light to light driving compared to an electric one?? __________________ 1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler

05-06-2005, 08:49 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	Acording to what I've read, they don't really flow enough for the street.

05-06-2005, 09:24 PM	#7
GloryHound Working on a Nova. Join Date: Nov 2002 Location: ## Posts: 506	I've heard the electric really are not meant for street use. They tend to wear out more quickly and do not work well with an old style thermostat unless you use a seperate thermastat that can turn a relay on to turn the pump on once you usual thermostat has opened up. If you run with out a thermostat in the housing you could end up with no heater in the winter or on a cold morning.

05-06-2005, 09:40 PM	#8
kelsfine69 18 Till I Die Join Date: Mar 2005 Location: Alberta, Canada Posts: 1,522	Had a stock BBC pump, switched to Moroso drive kit. Ran too hot not good for steet use , Now have aluminum Edelbrock pump....much beter cooling. They have a CNC machined impeller compared to other stamped steel impellers



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