The Stovebolt Site Forums The Shop Area Engine Shop oil filter canister

I'm re-doing a '57-235 that will eventually replace the one in my '52 daily driver.The filter sump had a 1/2 pound of sludge in it which had anchored the wrong filter FIRMLY inside! It's clean now! Napa ordered correct filter. Unit feeds oil thru top inlet, and after passing thru sidewall of filter and thru the 3/32 hole in vertical shaft, exits out bottom. Has anyone ventured to add additional holes to increase oil flow? I'm considering doing that, or shouldn't I go there?

You will likely notice an unacceptable drop in oil pressure. I vote don't go there.

Being too old to do a lot of math, I can a least extend a concept. If the length of the connecting tubes were equal,as were the dias., we could calculate a flow. factor in the resistance of the filter,and the 3/32 orifice, and arrive at a modified flow rate.It still seems to me to be a pitiful rate of oil that is being filtered, unless pre-design called for a pathetic filtering rate. The supply point for this filter is at the top of cylndr head, whilst the remainder of the pump output supplies the rocker rail. I'm still not convinced that opening this orifice a little more would be harmful. What is the design output psi of the oil pump?

You know a lot more than I know, tools94... I got lost at the beginning of the explanation

I do think you'll get a lot more response to your idea though if you post it over in the the Engine & Driveline or General Truck forum where they get more traffic