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Old 11-29-2004, 05:03   #1 (permalink)
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Engine fans - 5 blade vs 10 blade

From the Davies Craig website is says that 3.9L engines have a 5 blade fan, and the 4.0L have a 10 blade fan - is there any real difference in cooling capacity between the two?

PS I don't want "install thermofan" comments LOL but I'm expecting one or two..

Dan..
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Old 11-29-2004, 05:27   #2 (permalink)
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Re: Engine fans - 5 blade vs 10 blade

The 10 blade fans are quieter and more efficient.
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Old 11-29-2004, 05:29   #3 (permalink)
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Re: Engine fans - 5 blade vs 10 blade

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Originally Posted by 9psi EB
The 10 blade fans are quieter and more efficient.
That sounds good. Thanks!
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Old 11-29-2004, 05:31   #4 (permalink)
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Re: Engine fans - 5 blade vs 10 blade

u could install thermofans :)
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Old 11-29-2004, 05:34   #5 (permalink)
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Re: Engine fans - 5 blade vs 10 blade

I could... but probably won't...
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Old 11-29-2004, 05:45   #6 (permalink)
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Re: Engine fans - 5 blade vs 10 blade

i was just kidding mate, u were expecting one though so i didnt wanna disappoint u...
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Old 11-29-2004, 06:03   #7 (permalink)
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Re: Engine fans - 5 blade vs 10 blade

why dont u wanna install thermos? they arent that much more are they? And for around I think $60 you can get some switch whcih you plug into one of the coolant hoses and that controls the fan?? And they are quiter??
Just curious as to why thats all.
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Old 11-29-2004, 19:09   #8 (permalink)
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Re: Engine fans - 5 blade vs 10 blade

Just tossing up my options at the moment..

I asked a question about the difference between the two fan types. I know the benefits of thermofans and the disadvantages from the 100+ other threads on em. I didn't want any info on thermofans because then it will just hijack the thread and people lose focus. Thats just my reasoning.

My current thoughts are:

Clutch fans - they are noisier, but do a good job cooling, reasonably reliable, not dependant on electrics, physically easy to swap.

Thermofans - needs wiring for which I am not good at, for new parts they are more expensive, place more draw on electrics (which on an old EA tend to have electrical gremlins), also do a good job cooling if set up at the right temps, quiet, physically not hard to install.

I do a lot of nightime country driving, and the possibility of 2nd hand thermofans failing 100kms from a town at 10pm to me is a bit worriesome..

Dan..
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Old 11-29-2004, 19:41   #9 (permalink)
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Re: Engine fans - 5 blade vs 10 blade

Quote:
Originally Posted by Axeman82
I do a lot of nightime country driving, and the possibility of 2nd hand thermofans failing 100kms from a town at 10pm to me is a bit worriesome..

Dan..
So the newest car you will ever own then is an ED (talking falcons here), as EF had thermos ?
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Old 11-29-2004, 20:21   #10 (permalink)
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Re: Engine fans - 5 blade vs 10 blade

Quote:
Originally Posted by Dellboy999
So the newest car you will ever own then is an ED (talking falcons here), as EF had thermos ?
Who knows, maybe..

I'm not saying that thermos are unreliable - I'm saying that on my EA with possible questionable electrics, I don't know if I'm 100% comfortable with the combination.

But I might end up going thermofans yet. Will probably come down to the almighty $$$ vs quality of parts..
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