A few years ago when I put an electric fan on my BJ8, it was horrible and
reduced the cooling capacity over the fan (the pancake motor blocked too
much of the radiator).
The newer fans have much higher CFMS (and I do believe make a big
difference) - provided you get a good quality fan. I recently installed a
11" Spal fan on my Austin A90 and I can tell you the thing is crackers for
keeping the car cool in Hong Kong, which is very very hot.
Alan
'52 A90
'53 BN1
'64 BJ8
On Tue, Feb 3, 2009 at 9:40 AM, Mirek Sharp <m.g.sharp@sympatico.ca> wrote:
> I recall reading a book by LJK Setright on the history of Bristol cars,
> that the engineers there found the fan/waterpump accounted for about 5 HP,
> which sounds in line with what you mention.
>
> Mirek
>
> ----- Original Message ----- From: "PG" <britishcars@shaw.ca>
> To: "'healeys'" <healeys@autox.team.net>
> Sent: Monday, February 02, 2009 3:25 PM
> 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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