[DeTomaso] Cooling system hose questions

[JDeRyke at aol.com]

In a message dated 5/28/09 8:19:58 PM, dickruzzindesign at aol.com writes:

> I was told that pusher fans are more effective than pullers.  Usually 
> there isn't room in front of the radiator.
> 
I think you were told wrong. Sucker fans -in a shroud- affect the entire 
core area while pusher fans only affect the core area directly in front of the 
fan blades, which is less than half. Adding a shroud in front of a radiator 
restricts the surface area of the core at higher speeds. Supplementary fans 
are only needed at very low road speeds; above about 25 mph, Panteras (and 
presumably, Mangustas) don't need fans at all. Sucker fans always work 
better in my experience and most designs reflect this; the only reason to use 
pusher fans in any car is lack of adequate space behind the radiator. The only 
other car I can remember having pusher fans besides the stock Pantera is the 
early Countache, which also had restricted space behind its dual radiators. 
My 2¢- J Deryke


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