[Spridgets] Water pump

[WeslakeMonza1330 at aol.com]

David is correct.
 
An engine driven water pump is designed to operate at high effiency at low  
engine rpm.  This is so much the case that high rpm engines benefit from  
running the pump at a lower speed.
 
Regards
 
 
Weslake-Monza 1330
In a message dated 19/01/2009 14:26:18 GMT Standard Time,  
oldsaabguy at comcast.net writes:

David,

I would beg to differ.

At idle a regular water  pump is not working well at all, slow speed,  
no air moving over  radiator, low water pumping.

Electric water pump works all the time (if  you want) so that you get  
great water flow at idle or  whenever.

That said, I have only seen them on racecars as well but  racers are  
frequently ahead of the curve...  ;-)

Lester

On Jan 19, 2009, at 6:54 AM, David Lieb  wrote:

>> ... He doesnt address electric waterpumps, I  was
>> wondering why... having an electric water pump would reduce  drag,  
>> thus
>> allowing for more power, anyone have  any ideas? Also going along  
>> with this
>> idea, why  doesnt he recomend an electric fan?
>
>  Matt,
snip

>
> Electric water pumps are seldom used by  anyone but a racer. Most  
> beneficial
> when the car sits  at WOT for extended periods. Not nearly so logical  
> when
>  significant time is spent idling.
> David Lieb