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350HP930 350HP930 is offline
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Join Date: Jun 2003
Location: St Petersburg, FL
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Originally posted by strokher racing
Are those numbers still at 25 inches?
No, those numbers are for 28" and should be more accurate since I made some scientific calculations about how big the boundry layer is in my flow measurement tube. Since most of the other flow numbers I have been finding on line are for 28" I have been adjusting my flow numbers to that reference pressure for comparison purposes.

Since the boundry layer is about 1.25 mm thick where the pitot and static ports are located in my 50 mm measurement tube the actual flow area was only 90% of the total area I was initially using for my calculations.

The latest numbers should be very close to the actual CFM numbers my heads are moving.
Old 04-19-2005, 04:15 PM
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