Oil Pressure Oil Filter

If I change filter will it help up the oil pressure and what brand should I use?

Thanks

Actually it's my test and analysis that Ronnie linked to. No, the filter is not "at the end" of the oil system. The B and others like it use a bypass type of filter system. About 15% (by design) of the total oil pump flow is bypassed directly to the sump through the filter. That bypass flow does not go to any bearings. Think of it as two parallel (not series) circuits - one to the bearings and the other to the filter. The actual bypass flow amount depends on the resistances in the filter portion of the circuit. The resistance of the filter itself is a significant portion of the resistance in the circuit. The pump pressure is limited to about 15 psig by an internal relief valve. The newer WIX & NAPA filters have a decreased resistance from the earlier versions of those same filters for any particular oil flow. For that reason, the bypass flow through the filter circuit to the sump is increased over the design flow. Since the pump is a constant flow device at any particular engine speed, the flow to the bearings is therefore decreased. The end result is a decrease in the oil pressure as measured upstream of the filter (downstream of the pump).

Rod

• Filter

I'm running that fram on my G right now and have good pressure on my gauge.

Anyone know off hand if the 'g' uses a full flow system..or a partial flow system?

thanks

Soundguy