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Old 12-25-2005, 10:16 PM   #9
Scoobie Steve
Scooby Specialist
 
Member#: 2289
Join Date: Sep 2000
Chapter/Region: Tri-State
Location: Bangor, PA
Vehicle:
1998 [email protected]
Subaru L Ver 6 STi Type R

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Your numbers are from two different test pressures and CANT be compared. They are even two different lift heights. If the same test pressure and lift was used it would be less then 20cfm, probably showing the NA head to flow more then the STi. You can measure flow at many different pressures. To compare they have to be the same pressure and really should be the same flow bench. Also many people flow heads without using a simulated cylinder. Flow benches are like dynos they are good for a before and after number, not for comparing. There are just to many varibles in the setup to accurately compare numbers.
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