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Re: [Healeys] electrc fan vs. belt drive

To: Oudesluys <coudesluijs@chello.nl>
Subject: Re: [Healeys] electrc fan vs. belt drive
From: "Eric (Rick) Wilkins" <e-wilkins@cox.net>
Date: Wed, 4 Feb 2009 09:48:55 -0800
Not that simple math.

There is the efficiency of each item to be considered. You can run  
the water pump from a battery for maximum HP, but an alternator may/ 
may not use more mechanical energy than your belt driven pump. Also,  
once the pump is removed you are reducing the engine from driving an  
alternator AND a pump, to just a an alternator.

Wilko

On Feb 3, 2009, at 2:20 AM, Oudesluys wrote:

> A water pump and a mechanical fan need a fair amount of power to be  
> driven. They are not perpetu|m mobilae, so that power needs to come  
> from somewhere: ultimately the engine, and it does not make any  
> difference if that is through the alternator/dynamo and battery. So  
> the power needed for the alternator that will feed the battery and  
> powers the water pump will not be available to drive the wheels.  
> Simple mathematics.
> Kees Oudesluijs
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