[DeTomaso] Electric Water Pumps, The 21st Century of Water Circulation

[gow2 at rc-tech.net]

I ran Evans for a while in the MGB when the engine was new. My radiator
was marginal and Evans has less cooling capacity the traditional coolant
and water. Changing back to regular water and coolant I was able to keep a
stable temp. AND.....Evans is flamable.

Gary

> Folks:
>
> I have a Meziere electric water pump in my 5.4L SOHC supercharged engine.
> I did this for a number of reasons, the two most important are the quality
> of the Meziere pump, and the output of the pump.
>
> *http://www.meziere.com/ps-1158-1126-wp346s.aspx*
>
> or
>
> *http://www.meziere.com/displaycategory.aspx?d=244,388,128,312,332,302,249*
>
> Meziere got their start building electric pumps for NASA.  They were the
> first to use rare earth magnets in their electric pump motors.  They went
> into the aftermarket automotive world as a natural growth area for their
> products.
>
> All of their electric pumps are guaranteed for 2000 hours of use, or more.
> That's a long service life.  Second is their GPM output, which is rated at
> 35 or 55 GPM.  While OEM mechanical water pumps may out flow that rate at
> high RPMs, that extra flow isn't necessary, it's just a horsepower sink.
> Your radiator can process only "so much" coolant per minute. In fact there
> is an optimal water flow speed for radiators, too fast and the coolant
> can't exchange its' heat, too slow, and the coolant is cooled too much
> before exiting the radiator.
>
> Radiators are designed to "radiate", or exchange a specific heat load.
> That's why there's large radiators, and small radiators.  Radiators are
> also designed for specific water flow rates.
>
> The point of this is that an engine cooling system is a *system*, and it
> takes all the pieces to operate as an effective system.  Plus the pieces
> need to be matched; from the radiator cap, to the hose size, to the
> radiator flow rating, to the thermostat, to the air flow circulation, to
> the pump.  The pump is critical, but so is the radiator cap, the coolant;
> all the pieces.
>
> Personally not only do I have an electric water pump, but I also use a
> high
> temperature coolant (Evans since it won't cause dissimilar metals
> corrosion- Al heads, iron block, has a boiling point of 370F, and does it
> at atmospheric pressure), a double row Fluidyne aluminum radiator, a 3 PSI
> radiator cap, a high flow thermostat specifically designed for my coolant
> and system, and so on and so forth.
>
> My Meziere pump is an outstanding piece of engineering.  When my ignition
> is "On", I can *not* hear my pump in operation, and I can not feel the
> operating pump.  I can *barely* hear it with an electronic stethoscope.
> It's incredibly smooth too.  If it wasn't for my electrical
> instrumentation, I wouldn't ever know the pump is operating.
>
> Plus, *when my engine is idling in traffic, or creeping along in gridlock,
> my coolant is circulating at full speed. *
>
> Now I do admit that the Meziere is more expensive than a premium
> mechanical
> pump. But being able to know my coolant is circulating as soon as I flip
> the switch is a really nice feeling.  Plus I don't have to worry about fan
> belts either!  If my serpentine belt fails, my AC stops, my alternator
> stops, and my Meziere and Bosch pumps will operate for 9 hours (at a
> minimum).
>
> My pump (as all the Meziere pumps designed for Ford engines) draws 12 amps
> at start.  After startup, the amperage draw drops to about 8 amps.  And it
> stays there.  It is a complete replacement for the OEM mechanical pump, as
> are the 351C pumps.
>
> One other factor in favor of electric pumps is the horsepower savings.
> According to Meziere, electric pumps save 11 to 14HP, especially at the
> higher RPM levels.  I can't recommend them highly enough.  At least the
> Meziere pumps.  There are other brands, and they have good reputations,
> but
> I only have personal experience with the Meziere models.
>
> So, no fan belt issues, no circulation issues, significant HP savings, and
> excellent service life.  I don't think you can go wrong with the Meziere
> pumps... especially if you're living in the 21st century....
>
> Chris
>
> Chris Difani
> '73 L #5829 "LITNNG"
> Sacramento, CA
> Email: csdifani at gmail.com
>
> PS: "Water pump" pliers were developed by Henry Fords' engineers, and were
> included in the Model A factory tool kit in the 1920s.  They can be very,
> very helpful, and a 24" pair of water pump pliers can open just about *
> anything*.
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