Electric water pumps (was) alt charging cont sw

[Greg Hermann]

>-----Original Message-----
>From: steve ravet <Steve.Ravet at arm.com>
>To: diy_efi at efi332.eng.ohio-state.edu <diy_efi at efi332.eng.ohio-state.edu>
>Date: Friday, March 12, 1999 2:50 PM
>Subject: Re: Electric water pumps (was) alt charging cont sw
>
>The reason water pumps are such a large HP lose is cause they need to be.
>You
>can slow em down some, and in some applications take em out.  But, for a
>street motor,
>they is what they is.
>  For you to have an electric motor pump as much as an oem waterpump you'd,
>have to have a
>big a-----  motor/pump to replace it.
>  For fast warm ups use a recirculating thermostat
>Bruce

Bruce is right on this, completely. (Or is it one of the little guys?)

There is even a good debate possible as to whether a high pressure fuel
pump should be electrically or mechanically driven, let alone a water pump,
or an engine fan (if you are working an engine any kind of hard at low
speeds for any length of time)!

For any sizable auxiliary drive loads, a mechanical drive is way more
efficient than an electrical one.

Regards, Greg