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Any downsides to an Electric Water Pump (EWP)?

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Old Aug 12, 2006 | 06:43 PM
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Default Any downsides to an Electric Water Pump (EWP)?

Been noticing a faint coolant smell the past 3 weeks, got under can today to see - and yup, the pump is leaking.

Ok, fine, time to upgrade, right?

I've read the electric ones are supposed to be more robust & 5-7hp.

I use my TA street mostly, and a daily driver in the summer months, I assume the Meziere street version is my best choice?

Also, aside from wiring for the install, what are the disadvatages of the EWP? Any added noise?

Thanks all.
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Old Aug 12, 2006 | 07:00 PM
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The only thing bad I have heard happening with them is electrical problems and then turning off and the car overheating. I had a buddy who had one on his TA and a wire got knocked loose or something like that happened and it shut off. Thats all I know of though...
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Old Aug 12, 2006 | 07:31 PM
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yeeah price
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Old Aug 12, 2006 | 07:46 PM
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that and they have a limited life expectancy(3000 to 5000 hours i think)
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Old Aug 12, 2006 | 08:09 PM
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I wasnt too worried about the price, since I'mm have to pay most of that for a new pump anyway, for the extra money from a stock to EWP isnt a problem for me.

But, I didnt realize the limited life span 3000-5000hours!
When an EWP gives out, what happens - the car just starts to overheat?

Unlike the stock pump that will just leak and give out slowly?

Hhmm, If I pass on the electric pump, what would be a good choice for a replacement? stock, generic (auto zone), or what?
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Old Aug 12, 2006 | 08:28 PM
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If I were you I would go with a stocker or a generic one like you said and put the money you save towards more mods or anything else you might need...
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Old Aug 12, 2006 | 08:45 PM
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Originally Posted by Michael02hawk
When an EWP gives out, what happens - the car just starts to overheat?
The pump is electrically controlled, so if you have no power to it.. you have no water/coolant flowing. So, yes... it will start to overheat.

It would be like taking your pulley off of the stock water pump..
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Old Aug 12, 2006 | 08:54 PM
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i would only consider one of you were done with a car..bolt ons..heads cam and what not..and you wanted to put some icing on the cake...
i would also only put one on if it wasnt the DD...DD duty is too much for the EWP and its relatively short lifespan
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Old Aug 12, 2006 | 08:58 PM
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gm high tech did an article on cooling systems a few months back.there are some high flow options out that are better than stock.just check around
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Old Aug 13, 2006 | 07:00 AM
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Yeah that would really suck to be cruising around and your water pump is off and you don't even know it. I'd get some sort of a light to the cab so you are aware that the pump is actually operating. Meziere suggest you take it off 3 to 5 thousand hours of operation to send it in to have it checked out. I think it would be good insurance.
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Old Aug 13, 2006 | 08:04 AM
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Originally Posted by Pipelayaz
Yeah that would really suck to be cruising around and your water pump is off and you don't even know it. I'd get some sort of a light to the cab so you are aware that the pump is actually operating. Meziere suggest you take it off 3 to 5 thousand hours of operation to send it in to have it checked out. I think it would be good insurance.
Nice tip, I'll have to try and find a way to tap a wire into it, to verify operation w/a light like that!
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Old Aug 13, 2006 | 08:15 AM
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Like everyone said limited life span. 2-3 years on a street car.
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Old Aug 13, 2006 | 03:23 PM
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I've heard of some pretty good numbers with this mod. But there are people who wouldn't agree. As with any modded car I'm sure it'd compliment the engine quit nicely.
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Old Aug 13, 2006 | 07:45 PM
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Originally Posted by outkast6991
that and they have a limited life expectancy(3000 to 5000 hours i think)
Originally Posted by davered00ss
Like everyone said limited life span. 2-3 years on a street car.
Bull-****.

do the math. Even at 2 hours per day, for 5 years thats only 3650hours. Really not that much, I dont know anyone who drives their car 2 hours a day, 365 days a year.
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Old Aug 13, 2006 | 07:54 PM
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Thats a lot of gas man..!
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Old Aug 14, 2006 | 04:08 AM
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Hmm.. expensive, very little HP gain and a chance of it stop working without warning. No thanks, not for a street car.
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Old Aug 14, 2006 | 08:38 AM
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They look great on a show car or weekend cruiser, but probably wouldn't put one on a daily driver or one that I NEEDED to rely on for steady transportation.

Bryan
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Old Aug 14, 2006 | 08:45 AM
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Originally Posted by RaNsOm
Bull-****.

do the math. Even at 2 hours per day, for 5 years thats only 3650hours. Really not that much, I dont know anyone who drives their car 2 hours a day, 365 days a year.
i drive mine about 3-5 hours a day everyday it doesnt snow or rain :p
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Old Aug 14, 2006 | 09:27 AM
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For a reliable HP performance version of the stock pump I would suggest going with an Evans HiFlow Pump - you can get them powdercoated most colors also.

I use the Evans unit, with the Evans NPG-R waterless coolant, 160 deg stat, SLP HD rad, ASP UD pulley - never any overheating problems - keeps the car cool no matter how much I'm on it or the outside temp. Plus you have the piece of mind knowing that it will not fail without prior warning.

BTW, I had originally purchased the Meziere Electric Street pump - had second thoughts about running an electric pump on a street car - sold it and went with the Evans unit.

An electric pump will afford you more flow at idle and low rpm conditions over a mechanical unit - but falls short of a mechanical unit after that as the electric versions run at one speed continuously.

-Jay-
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Old Aug 14, 2006 | 09:31 AM
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Originally Posted by 1QUIKWS6
For a reliable HP performance version of the stock pump I would suggest going with an Evans HiFlow Pump - you can get them powdercoated most colors also.

I use the Evans unit, with the Evans NPG-R waterless coolant, 160 deg stat, SLP HD rad, ASP UD pulley - never any overheating problems - keeps the car cool no matter how much I'm on it or the outside temp. Plus you have the piece of mind knowing that it will not fail without prior warning.

BTW, I had originally purchased the Meziere Electric Street pump - had second thoughts about running an electric pump on a street car - sold it and went with the Evans unit.

An electric pump will afford you more flow at idle and low rpm conditions over a mechanical unit - but falls short of a mechanical unit after that as the electric versions run at one speed continuously.

-Jay-
I think the main reason he is considering an EWP is that it frees up a few ponies.
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