I am forwarding Jc's suggestions and comments to the list as I believe it
has some great content. Just wish my fan had only run $3.00. Oh well!!
Thanks Jc.
Allan
B9472373
>Date: Thu, 16 Oct 1997 09:31:29 -0600
>From: John Crawley <johnc@nait.ab.ca>
>To: alcon@earthlink.net
>Subject: Re: Canadian Fans -Reply -Reply
>
>Allen:
>The Volvo fan cost $3.00 at Pick-your-part. It required no trimming but I
>did have to machine the aluminium spacer plate thinner - not hard to do
>you could do it with a press drill and a flat file.
>The other thing that I did not mention is that regardless of the fan that you
>use the blades must only extent into the shroud by 2/3 s. The air con
>guys tell me that a fan moves air by biting it and then throwing it off of
>the fan tips - not by moving it through the fan. I have observed that
>sports cars that over heat - including several TIGERS - often have a this
>too far into the shroud problem. An ex Roots engineer worked here for
>years before retirement. He said their method of engineering cooling was
>to stick in the biggest rad the car could take and then start blocking off
>rad rows. When the car boiled they would add two rows back in and
>then put the car into production. He said they knew how to build proper
>full surround rad shrouds but that they were too expensive to build using
>the tin technology of the day. He said the big difference on modern cars
>is that they can build a plastic shroud for very little cost. The whole car
>industry is one of cost engineering, if you save $10 per car building
>smaller rads and make 100,000 cars it means a lot of $ saved by the end
>of the cars run. I used this engineers advice on building the full surround
>shroud for my TIGER and it works. Any way sorry for the ramble . . .
>Godspeed
>Jc
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