Thread: hp estimates 509 bbc blower motor
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Old 07-23-2009, 01:45 PM
  #11  
taps
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Join Date: Jan 2006
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Default cfm
found a formula to figure cfm on blown motors,when i did the numbers on my combo i came up with 2318 cfm for 509 running 7800 rpm at 15 psi boost.
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