electric waterpump?

jrc_03_gt · Feb 2, 2007

My friend has a 94 cobra. His waterpump went out. should he replace it with a electric waterpump? He has the underdrive pullies installed, I did not know if that would matter or not. How much HP can he gain from going to the electric pump?

91notch5.0 · Feb 2, 2007

i say no. electric water pump is for the hard core racer. keep it simple

C0V3R · Feb 2, 2007

I would only ever put on an EWP if it was the absolute last HP I could find on a hard core straight line racer.

v8only · Feb 2, 2007

why is it only for the hardcore racer? It's supposed to free up 10-20 hp. I've been considering one myself, and am just starting to do the research. I don't see any drawbacks at all for having one, and they're pretty cheap too, any other opionins on this from those with experience??

Roland69 · Feb 3, 2007

If he wants one yes I would say go for it....always have the same coolant flow at idle or WOT....My boss put one on his 78 Impalla and is verry happy with it

criticman · Feb 4, 2007

Modular2v · Feb 4, 2007

i would do it! The one on my 331 works great...only down side is that it takes it 20 minutes to get to operating temperature if i start the car with it running!

v8only · Feb 4, 2007

summit has some electric waterpump drive kit for $89. not sure if that includes everything or not

criticman · Feb 4, 2007

Modular2v said:
i would do it! The one on my 331 works great...only down side is that it takes it 20 minutes to get to operating temperature if i start the car with it running!

Not setup with a thermostat to determine when it kicks on?

criticman · Feb 4, 2007

v8only said:
summit has some electric waterpump drive kit for $89. not sure if that includes everything or not

From what I recall, it would not work with the belt setup for a s/c.

MeanMussy · Feb 4, 2007

be carefully with electric water pumps. You need to make sure that it is rated for the long duty cycle it will see in a street car. Most are designed to be on a 1/4 mile at a time. If you run one on the street, you run the risk of having a little electric motor burn out on you on the street.

vristang · Feb 4, 2007

Meziere WP311 -
Rated for long term use in street applications
Has provisions for stock heater hoses

http://www.meziere.com/2007_catalog/20.pdf

It set me back about $365, through Summit.

It does look to be a VERY well built unit, but the motor is still in the machine shop so I have yet to even install it.

In order to run an e- water pump properly it should be wired to a controller.
The controller should allow about 10% of max flow at idle. Stagnant coolant during warmup will cause localized hot spots, which can lead to coolant degradation and even engine damage.
Too much flow at cold start will increase warmup times.
The flow should be controlled similar to the speed of an electric fan.

I have been looking at a DCC unit to control both the e- fan and waterpump.

jason

criticman · Feb 5, 2007

I just read last night in the latest 5.0 mag that there is a radiator, e-fan, and e-water pump combo now that is customized for 5.0 stangs. It is going on one of their project cars and they made a point to say that since the car will see more than just strip duty, the system is rated for long term use, including high temp days as a daily driver.

I will try to remember to post up the details tonight.

Modular2v · Feb 5, 2007

criticman said:
Not setup with a thermostat to determine when it kicks on?

nope...i gutted the thermostat

criticman · Feb 5, 2007

No, not the mechanical thermostat that resides in the system in stock form. I mean an add-on electronic thermostat w/ controller that reads engine temp and controls when things like an electric pump or fan kick on.

STANGateURlilSS · Feb 6, 2007

i have had many different cars with eleltric water pumps.. and they work great.. for street cars, race cars, circle track cars.. all cars.. and yes there are afew that let you retain your stock belt setup.. ie has a idler pulley.. that just spins..

Modular2v · Feb 7, 2007

criticman said:
No, not the mechanical thermostat that resides in the system in stock form. I mean an add-on electronic thermostat w/ controller that reads engine temp and controls when things like an electric pump or fan kick on.

nope..... i have a carb car so i stay away from computer assisted functions

electric waterpump?

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