New to forum / Custom WI system for AUDI

[Richard L]

Originally Posted by simple

Richard, E-mail sent. attached is a copy of Exel file. Good luck with NASIOC board.
Please post results of your test, I wonder how much different will they be.

Thank you for the excel file, I managed to extract some good information and some inetersting findings.

It appeared that the non-linear-ness of the pressure/flow ramp again power is limited to the power of the water pump. after 3-4V ish, the pressure/flow begins to flatten out, it appeared that if a more powerful pump is used, you will get a better performace, more predictable and more linear with each addition volt fed into the pump.

I could be wrong, but not able to pin point why the drop in flowrate.



If the power of the pump can be used to product pressure rather than flow, you might have a cmpletely different flow curve. The Shurflo pump is designed for high flow with moderate pressure, you really need to look for a low flow gear pump so that you get sustainable pressure ramp. Altenatively, get a more powerful motor?

Richard