a 1/8" round orifice would have 0.012 square inches of area (pie are square), so 200 of those holes would be 2.26 square inches. where a 1/16 would only have 0.003 square so it would take 800 holes to provide the same opening.
there is some very good engineering info both anylitical and imperical on oil flow through screens (just not something I did regularly). as the size of the orifice decreases the viscosity of the fluid has an effect to whether the flow is laminair or becomes tubulent and is usually and adds to the resective nature of the screen.
as for as percent opening area, the 20 mesh (with small wire) is actually more percent open than the punched hole screen
quote:Originally posted by 1Rocketship:
You could go to a finer mesh by just maintaining the filtering inlet flow inch figures of the stock filtering screen.
As an example....the stock screen has two hundred 1/8 inch holes.
A finer mesh screen has four hundred 1/16 inch holes.
Same filtering inlet flow, just achieved via a smaller orifices/holes...Mark