Electric Water Pump yes or no

There is nothing wrong with an electric water pump. Lots of electric water pumps on modern cars right from the factory. There has not been a mechanical fuel pump installed on modern cars for over 30 years. (although DI does use a mechanical pump to get the fuel pressure over 1,000 psi, it is fed by an electric pump)
What you have to do is look at gallons per min and amp draw to determine if the pump can flow enough water and if the existing alt can support the added load.
More importantly, make sure that it is wired up correctly. There has to be sufficient wire size, proper crimps, insulation, routing, proper grounds and the correct relay to handle the load.
Most issues with aftermarket parts is due to improper installation of the component and improper wiring.

Noobz347 said:

What specs would those be? I mean... What am I looking for in the specifications that will assist me with this decision?

Click to expand...

Check out the Davies Craig website and read up. I am not affiliated with them at all

General karthief said:

Manual fuel pumps were used for years because they only needed to pump 5-7 psi, even the electric fuel pumps mounted outside the tank suffered from overheating and failure, I'm not saying he can't use an electric water pump but I wouldn't on a street car, just an opinion.
Electric water pump are for race cars. Again, just an opinion.

Click to expand...

In my other project, the new mechanical fuel pump QC has been a real problem for a while. And when this style fails, it fills the crankcase. So, I am using an Airtex external, low pressure model that’s been tested by a lot of owners of the same model of car. With the short life of the box type ones that were commonly available for carbs, I am hoping for a great run of new mechanical pumps soon.

As most electric water pumps are made for short burst racing and cooling off in the pit, flow amount, and duty cycle would be two specs I’d look at before trying one on the street for extended, normal driving.

7991LXnSHO said:

As most electric water pumps are made for short burst racing and cooling off in the pit, flow amount, and duty cycle would be two specs I’d look at before trying one on the street for extended, normal driving.

Click to expand...

The meziere street pumps can handle continuous duty without issue. I’ve ran mine for entire days of driving and it does great.

FastDriver said:

I don't daily the blue car, which I bought with one, but the electric pump has done fine on the couple thousand street miles I've put on it. OTOH, I stuck with mechanical pumps on all of the other cars I've owned. Have replaced a few of those in my day. I guess I'm not too worried about it. I *could* overheat the motor, either way, but I never have overheated to the point of engine damage. Just keep a good eye on the gauges every couple times you look at your instrument cluster.

Click to expand...

The only thing wrong with good electric water pumps is the price. The guy who put that blue car together knew what he was doing ( kinda, maybe a little )

Also run the Edelbrock high flow water pump. Been for years. Never an issue and car runs cool as a cucumber.

You'd be surprised how many new cars have electric ( auxiliary ) water pumps. I know a couple guys that have been running electric pumps in their street mustangs for years. One of them has a 460 in his. This is definitely something I wouldn't skimp on. You get what you pay for. I run mechanical water pumps on my cars. Not enough HP recovered to justify the expense on any of my cheap builds. Lol