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Discussion Starter · #1 ·
What is the flow rate range for the stock 2zz water pump?
 

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Flow as a function of RPM?

And have you considered that you may also want to know the head pressure versus flow?
 

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Discussion Starter · #3 ·
I was looking for flow rate at max engine RPM. In my case that is 8500. I am asking not because I want to alter or replace the pump, just to know what I.D. tubing might be sufficient in a simplified and shortened cooling circuit.
 
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