[Healeys] Electric water pumps

[Bob Haskell]

Alan,

I have the same concern.  I sent their US rep an email asking about 
that.  Seems like there ought to be a temperature sensor in the lower 
radiator hose to look at the temperature drop between radiator in/out.  
The temperature drop would be affected by (electric) fan speed and the 
flow rate.

They sell different size pumps.  Based on their table, the EWP115 
(115liters/minute maximum) is what they recommend for engines between 
2.0 and 3.5 liters.  Anyone know what the flow rate is for a stock water 
pump?

Cheers,

Bob Haskell
Austin Healey 3000 BN7/BT7 registrar

On 8/28/22 11:56 PM, Alan Seigrist wrote:
> Hi Bob -
>
> Just remember that the cooling system is meant to work in balance, so 
> increasing the water flow through the system often may not actually 
> reduce temperatures, since the water must flow through the radiator 
> slowly enough to cool down.  If you push water through the radiator 
> too fast, you might just end up recycling hot water back into a hot 
> engine.  So if you put a pump on the car, I would put a supplementary 
> tandem pump, not one that is meant to work alone.
>
> Best,
>
> Alan
>
>
> On Mon, Aug 29, 2022 at 6:43 AM Bob Haskell <rchaskell at earthlink.net> 
> wrote:
>
>     Anyone fitted an electric water pump to replace the mechanical
>     pump?  One can go whole hog with an electric fan, a temperature
>     sensor in the upper radiator hose and a controller.  Takes the
>     place of the thermostat and the impeller on the mechanical pump.
>
>     https://daviescraig.com/electric-water-pumps
>
>     A bit beyond a Pertronix, but still reversible.
>
>     -- 
>     Cheers,
>
>     Bob Haskell
>     Austin Healey 3000 BN7/BT7 registrar
>
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