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RX-7 3rd Gen Specific (1993-2002) RX-7 1993-2002 Discussion including performance modifications and Technical Support Sections.

 
 
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Old 08-10-2011, 02:27 AM   #14
Garfinkles Motor Works
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The five blade and four blade fans are used so then fans will not set up harmonic noise.Two four blade or two five blade fans near each other running at near the same speed will set up a harmonic pulseing noise .I use two four bladed fans and I have heard the pulse a few times with the hood open but it is not enough worry about .
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