Tuning gravity flow filters

[marrcel]

Today i tested some fuel filters with water.
On FB a lot people said paper filters are bad.
They are not that bad at all. Here are my results.

Filter flow
51sec 1L no filter
108sec paper filter 4,0mm
132sec Black alu 4,0mm
184sec copper grid 3,0mm
300sec Red alu 3,5mm

[marrcel]

[marrcel]

I will show the tuned filters later.

[marrcel]

Dubbled the holes and enlarged
92sec black Alu
138sec red Alu reversed flow
136sec res Alu

So the paper filter can be exchanged by the black one.