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FE Technical Forum / Re: Crunched/crushed primary Header tubes and the effect on power
« on: January 13, 2016, 09:03:06 PM »
It's just like the age old finger at the end of a garden hose! It's a common discussion in the heating/plumbing industry, the idea is that if there is a restriction in the pipe (dent, valve, smaller ID fitting etc.), fluid or air in this case will move the same volume but at a higher velocity at that restriction. Some people think that if you have a 1" pipe with a 1/2" hole at one end, the pipe will only flow as much as a 1/2" pipe. It's untrue.