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Author Topic:   cooling fan
Dirt Freak

Total posts: 303
posted May 21, 2004 07:26 AM  
What size fan and # blades works good for you? I currently use a six blade racing fan, but am thinking of trying a 4 blade racing fan to lighten it up a little. Don't have any problems cooling (190F), just wondering...does a racing 4 blade fan pull as much air as a 5 or six blade fan?

Dirt Forum Champ
Total posts: 635
posted May 21, 2004 01:27 PM  
The 4 blade 19" GM fan pulls more air with less drag than the others. Not sure of the exact part number, but I think it ends in 442 or 224 sumthing like that. It has VERY deep cups in it.

Dirt Forum Champ
Total posts: 2007
posted May 21, 2004 02:16 PM  
the 4 blade gm fan is the most powerful fan you can get. Its like 405422 or something like that. I have the number somewhere. WE put one of these on and its amazing how much more air it pulls.


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