Electric water pumps (was) alt charging cont sw

[Clarence Wood]

  Has anybody any experience with the *Tik-Tok* Fan/Water pump Switch made by Shogun?  Advertised in Jeg's cat.#990303, pg 46-T.  "It is a three position switch: pos.1 runs pump only; pos.2 it will run your water pump first, shut it off, then turn on your cooling fan-by repeating this sequence the radiator becomes a true heat exchanger instead of a temperature equalizer."  It doesn't say that it is automatic, but at $80.00 it should be!  Anyway, it sounds like a good idea if it were electronic.
  Does anybody know what the gph should be on a 6cyl engine? V8?

At 01:08 PM 3/12/99 -0600, you wrote:
>
>
>On Fri, 12 Mar 1999 ScottyCBoy at aol.com wrote:
>
>>  
>>  some guys have used things like marine bilge pumps
>>  they are trubine style pumps with a strait trhough flow path
>>  can move massive amounts of water with the larger sizes
>>  should be no reason no to use one of these
>>  
>>  Clive  >>
>> 
>> I have pondered the us of electric water pumps and I believe that they would
>> be beneficial in many ways:
>> 
>> First no thermostat would be needed, when the engine get's to operating temp
>> the pump would turn on..
>> 
>Probably you would need a thermostat to regulate the varing speeds,
>the hotter the engine gets that faster the pump goes.  I know there
>are some computers that regulate their fans this way.
>
>> Second the pump can run at varying speeds, while light cruising the pump speed
>> would be slower than at full steam, saving fuel..
>> 
>> Thrid the engine could theoretically warm up quicker as there would be no leak
>> past a closed thermostat and coolant wouldn't be circulating through a cold
>> engine...
>
>Someone was told by a manufacturer of one of those pumps that it was
>not wise to not run the pump when the engine was running as hot spots
>can form rather quickly and damage things.
>
>> 
>> Fourth reverse flow coolant systems could be retorfitted easily just by
>> reversing the current to the pump, no special reverse flow pump impellers
>> would be needed...
>>
>
>The heads/water ports are designed differently to flow the other
>direction, so you cannot always just change the water direction and be
>done with it, the ports are not always designed to flow both ways
>correctly.   The LT1 engines have an entirely differnt water port
>design so they flow correctly in the other direction.   My assumption
>is that the normal chevy SB water ports won't flow optimally in the
>reverse direction.
>
>> Scott > 
>
>			Roger
>
>