Thread: Discussion tomahawk mini viper!!!!
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Old Oct 22, 2011, 08:56 PM
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Quote:
Originally Posted by Sherlock View Post
The 25 would work good because the tail end is 20mm, which is a perfect 80%.
20mm minus the wall thickness. Think about it. A 80% FSA with one of my 25/12 fans would yield a diameter of 18.76mm. Area of I.D. minus Area of hub equals FSA.

With the 25/OT you would need a diameter of 18.53mm. Just shoot for 19mm.
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