Electric water pump?

I have a Meziere electric pump on my GT40 and it seems to work well. I don't know the Moroso pump, but I suspect it is a solid product. Why are you doing this conversion? In my case it was space reasons but that is less of an issue in the Pantera so I used the Edelbrock 8844 Aluminum hi-flow unit on mine. (http://www.jegs.com/i/Edelbrock/350/8844/10002/-1)

Mark

Here's an electric water pump that I did on my first Pantera years ago:

http://pantera.infopop.cc/eve/...=511108853#511108853

Michael

I installed the Meziere 55GPM on my GT40, have one on the Ultima and intend to go that route on the 74 Pantera. All are or will be the remote mount style for space saving. On the Pantera I might use it in a booster application retaining the mechanical pump too as the engine is partially hard blocked.

A good idea is to get a programmer that will vary the pump speed according to temperature.

Julian

I've had the Meziere on my car for years. It works great. With the 351C it lowered my running temp by 10 degrees. I use it like Joules is going to do. As an addition to the mechanical pump. It kind of makes it like the radiator is close to the engine like on a conventional car. The mechanical pumps is fed instead of having to suck from such a long distance. It is also very easy to mount under the car. I removed the controller from the pump and mounted it in the trunk.

I'm also using an electric water pump as an addition to a conventional belt driven water pump. I mounted it as close to the radiator's output as possible, which is where both Stewart and Meziere said an electric "booster" pump should be mounted. I ultimately decided to go with the Stewart 55 GPM remote pump as it offers zero restriction to flow when it's turned off. It's controlled by one of the outputs on my EFI ECU. The other item in the photograph is my remote bypass thermostat housing.

Still not convinced running only an elec. pump will adequately cool a modified engine. It seems you need around 55 gal/hr of water flow to barely match most mechanical pumps. Mezier makes an elec. pump that actually fastens to the lower rad tank replacing the lower outlet, making it the most close-coupled pump possible. This expensive little part, along with a mechanical main pump, should lower in-town temps a bit, but this's only speculation- I spent my $330 on something else.

I'm impressed. So many people running the electric pumps.
They must work well.

And so many Pantera owners with a GT40!

I also have a Meziere 55gpm remote electric pump in my GT40. It has worked great since installation. The car runs cool in 100F+ days sitting in traffic.

Advantages:
1) One of the other great things about a remote pump... You can have a TRUE flat firewall. There is absolutely no 'bump' intruding into the cabin at all.

I intend to implement the same change to my Pantera.

2) It is pumping at the maximum rate ALL the time. This means while siting in traffic idling, you are still moving coolant at the maximum rate instead of an idling mechanical water pump.

3) You can leave it run for awhile after you shut down the engine. That really gets rid of all that heat.

Yes, a good pump is expensive, but I feel the cost was well worth the gains. It's quiet, too! I can barely hear it running even with the engine off.

FWIW,
Kirby

quote:

Originally posted by Bosswrench:
Still not convinced running only an elec. pump will adequately cool a modified engine. It seems you need around 55 gal/hr of water flow to barely match most mechanical pumps. Mezier makes an elec. pump that actually fastens to the lower rad tank replacing the lower outlet, making it the most close-coupled pump possible. This expensive little part, along with a mechanical main pump, should lower in-town temps a bit, but this's only speculation- I spent my $330 on something else.

Jack.

IMO electric pumps are perfectly adequate and even now used in some production vehicles (GM & Toyota) to help meet new emissions regs. FWIW my Ultima has never suffered from overheating, has 600 HP and an engine bay that is so cramped it gets far hotter than any Pantera. It gets used at both extremes in traffic and as fast as my 'pucker meter' will allow on track.

In reality mechanical pumps are a compromise designed to meet a range of engine rpms and most (depending on pulley ratios) are pushing around 32 gpm at 2000 rpm, you don't get up to 55 gpm until the 3000 rpm mark. They are also of fairly inefficent impeller deign and can cavitate easily. All of that is in reverse to what is really required in a Pantera (or other mid engined car) when stationery or in slow moving traffic.

Julian

Electric pumps are ideal from an engineering stand point. With an electric pump you can throw away the thermostat and regulate temp by regulating the speed of the pump. Pump speed can be directly correlated with heat load instead of engine speed. Such controllers were available years ago, I'm sure they are still available today. The biggest challenge is improving the vehicle's electric system to supply the constant load of a pump.

(On a side note, automobiles have always needed an electric a/c compressor too)

The engineers at Ford gave the Ford GT a 100 GPM pump in order to provide enough circulation at 200 MPH. They chose a crank driven pump however. The SAE paper is #2004-01-1257.

Many years ago when I investigated the possibility of utilizing an electric water pump for a street vehicle I was put-off by the fact that the manufacturers of electric pumps only warranted their pumps for 200 hours, or claimed they needed rebuilding frequently. Has this situation improved? How many hours of operation are the pumps you guys are using rated for?

-G

quote:

Originally posted by Cowboy from Hell:

The engineers at Ford gave the Ford GT a 100 GPM pump in order to provide enough circulation at 200 MPH. They chose a crank driven pump however. The SAE paper is #2004-01-1257.

....I was put-off by the fact that the manufacturers of electric pumps only warranted their pumps for 200 hours, or claimed they needed rebuilding frequently. Has this situation improved? How many hours of operation are the pumps you guys are using rated for?

-G

That's 100 gpm at peak power, probably not much different than a high volume 351C pump? Despite the 'engineered' cooling system their are a number of Ford GT owners reporting cooling issues with spirited track driving, agreed that the pump is not at the heart of the problem though. I have that white paper if anyone wants a copy e-mailed, it's 900KB so too big to post here.

Meziere electric pumps have a life expectancy of 2500+ hours.

Julian