The electric waterpump is constantly running and needs power which is
supplied by the engine. So you would not gain much if any. The only
advantage may be a better design and thus more efficient.
The fan is a different story as it not running most of the time.
Kees Oudesluijs
Patrick and Caroline Quinn schreef:
> G'day Mike
>
> This is an interesting thread.
>
> The Australian company called Davis, Craig invented the thermatic fan many
> years back. Now they have an electric water pump that controls the amount of
> coolant flow, that when linked to an electric fan eliminates any power drain
> whatsoever.
>
> The electric pump is plumbed into the inlet hose and you do away with the
> thermostat and the water pump impeller. That is what you would do for a
> simple installation to an Austin-Healey, but in modern cars such as the
> Corvette that has it fitted there isn't a mechanical water pump or body at
> all.
>
> Have a look at www.daviescraig.com.au if you want to know more.
>
> Of course I am on a ridiculously high commission for every electric water
> pump sold.
>
> Hoo Roo
>
> Patrick Quinn
> Sydney, Australia
> (Where it's 95 F today)
>
> -----Original Message-----
> From: healeys-bounces@autox.team.net [mailto:healeys-bounces@autox.team.net]
> On Behalf Of Michael Salter
> Sent: Tuesday, 3 February 2009 1:52 PM
> To: 'PG'; 'healeys'
> Subject: Re: [Healeys] electrc fan vs. belt drive
>
> For the fan to absorb 7% of the engine's power that 7% say 10 BHP would have
> to be driven by the single "A" sectopm "V" belt..
> The last time I looked it usually takes a pair of "A" section belts to drive
> 1/2 a horsepower!!
>
> Michael Salter
> 100 (1953) #174
> AHX12 (1953)
> Bugeye (1961)
> http://www.netbug.net/blogmichael/?p=432
>
>
> -----Original Message-----
> From: healeys-bounces@autox.team.net [mailto:healeys-bounces@autox.team.net]
> On Behalf Of PG
> Sent: February 2, 2009 3:25 PM
> To: 'healeys'
> Subject: [Healeys] electrc fan vs. belt drive
>
> I'm also on a Triumph forum where a few people have claimed that the
> installation of an electric cooling fan (and elimination of belt drive fan)
> has increased their Power by about 7%.
>
>
>
> They claim that the drag created by the fan on the waterpump pulley creates
> a power loss that is more than the power loss due to the burden on the
> Alternator/generator created by the electric fan.
>
>
>
> Anybody have any thoughts?
>
>
>
> Paul
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