Re: [alfa] Mechanical vs electric fans - was single row timing chains

["Gwynne W. Spencer" <gwynnes1@xxxxxxxxxxx>]

Ah, but when you are on full throttle at 80 MPH, the mechanical fan is 
doing damn all   - it is the car velocity fan that is doing the work, but 
the mechanical fan is still loading the engine. I know that many years ago 
when I was living in England, I took the mechanical fan off my Cortina 
GTand the climate there just did not give me any overheating problems, but 
the car suddenly gained a few MPH so that on a long run on the M6 at WOT I 
could then exceed "the ton" (100 MPH) - BTW - all legal, as at the time, 
(1964) there were no speed limits outside of the towns and cities (super 
time was had by all enthusiasts)

I might add that the electrical fan controlled by a thermostat usually only 
engaged at idle or near idle conditions, when extra power was not a concern.

Gwynne Spencer

At 03:17 PM 11/8/2004 -0800, you wrote:
>Whilst I'm more concerned with originality, I have wondered what the True 
>hp difference between running a mechanical fan and the additional drag on 
>the alternator from running an electric fan is. I'm guessing, on average, 
>about 1 to  2 hp difference.
>
>Yet, once again I have to agree with Brian Shorey in that whether one is 
>sitting in the hot pits or a traffic jam idling away in, say Crawford, 
>Texas, in the summer, you want full fan power at idle. Obviously once 
>underway the person on the race track kills the fan.
>
>Biba
>Irwindale, CA USA
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