Electric Water Pumps

Submitted: Friday, Feb 28, 2003 at 17:05

ThreadID: 3593 Views:1433 Replies:4 FollowUps:2

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David

Has anybody tried or heard of anybody using electric water pumps, either running on their own ie: disable belt driven pump OR running to assist the belt driven pump??
See www.daviescraig.com.au

andhttp://www.fordmuscle.com/archives/2000/08/electricwaterpump/index.shtml
Cheers

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Reply By: Kev. - Friday, Feb 28, 2003 at 18:01

Friday, Feb 28, 2003 at 18:01

I thought elec water pumps were for drag racing to reduce the load on the engine making to go faster (using battery only)
The site you show is "ford muscle"

If you ran the elec/pump in every day use the altanator would be powering it and the altanator would be causing more load on the engine therefore back to where you started.

Remember the Phisics saying :
You can not create nor destroy energy , you can only convert it.
Also heat is lost energy!!!

Kev.

AnswerID: 14183

Follow Up By: David - Saturday, Mar 01, 2003 at 08:38

Saturday, Mar 01, 2003 at 08:38

Thanks Kev-
reading the Davies Craig tech info- a normal water pump pumps far more than necessary at higher than idle.... and therefore wastes a lot of power-(up to 6 or7 kw)
Fitting the electric version supposedly saves most of this wasted power- it only draws 7 amps max- way way less power than that consumed by the belt driven water pump. Although it sounds a bit radical, it is food for thought...
I've been putting electric fans on road going cars for about 30+ years now, with never a problem. Started with my HG Kingswood v8 and worked a treat. (notice all commodores are now electric fanned!!!)
I was just wondering if anybody had any experience of these pumps, anecdotal or otherwise.

FollowupID: 8507

Reply By: Truckster - Saturday, Mar 01, 2003 at 11:03

Saturday, Mar 01, 2003 at 11:03

and therefore wastes a lot of power-(up to 6 or7 kw)

if your worried about 6/7kw, you have the wrong car... Buy a top fueler.

AnswerID: 14227

Reply By: Savvas - Saturday, Mar 01, 2003 at 13:16

Saturday, Mar 01, 2003 at 13:16

David,

I'll put it to you this way...if an electric water pump fails on you, that's it. You need to fix or replace it there and then.

A mechanical water pump to my way of thinking will be more robust. A belt can be easily replaced.

As for the claim that mechanical pumps pump too much water at idle, consider that most overheating occurs in traffic, at idle.

AnswerID: 14231

Reply By: Member - John - Tuesday, Mar 04, 2003 at 11:55

Tuesday, Mar 04, 2003 at 11:55

Fitted one last year to a 2.8 TD Nissan Patrol. Even running continually the pump could not cool the engine. Removed and refitted mechanical pump. Still having hassles with Davis Craig over blown head gasket shortly after removing electric pump. Be very wary. Hope this helps.

AnswerID: 14411