simonr Posted January 28, 2006 Share Posted January 28, 2006 Do any of you happen to know the thread size used to screw the viscose unit on to the front of the engine? Also, what is the distance between the end of the threaded portion of the unit which attaches to the engine and the mounting face of the fan itself? Lastly, do all the fans for different vehicles with viscose fans have the same mounting holes / style? If you happen to have a fan, could you measure the diameter of the hole in the middle and the distance between the centres of each of the four mounting holes? Why you ask? Well, I have an electromagnetic fan clutch design on my cad at the moment. It would be ideal if it could be made to fit all vehicles - or as many as possible. This has to be the ultimate answer to the electric or mechanical fan question as it gives you the best of all worlds. You can switch it off in water or on the motorway for a few extra BHP and switch it on continuously off road or towing for a bit of extra cooling. the rest of the time leave it controlled by a thermostat. I believe that the fan can sink up to about 7kw of energy from the engine rotating it. It seems to me that it will be hard for any electric option to compete in terms of raw cooling. Just for a taster: Red = Bearings Green = Electromagnet Grey = Clutch Plate and magnetic ballast Brown = Electromagnet Mounting Blue = Fan mounting boss Gold = Engine mounting boss I'm going to start making it tomorrow! Si Quote Link to comment Share on other sites More sharing options...
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