Vintage Full Flow Filters

[gimmesomeshelter]

I've collected a number of vintage Fram full flow filters over the years, and I'm wondering which ones I should use. I would like to use one of my smaller ones for aesthetic reasons, but I suspect that a larger filter will reduce the chance of a big pressure drop. I've looked for data from the various filter companies, but I haven't found any. Comments anyone?

Cheers,

Paul
_________________
"I would rather have questions that can't be answered than answers that can't be questioned."

Richard Feynman

[Glenn]

If I remember correctly, they are all bypass filters and only filter some of the oil eventually cleaning all the oil. These are different from full flow that all the oil passes through.
_________________
Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"

Member #1009

#BlueSquare

[gimmesomeshelter]

These are full flow, not bypass filters. The most common is the FH6-PL which was used by Denzel.

Cheers,

Paul
_________________
"I would rather have questions that can't be answered than answers that can't be questioned."

Richard Feynman

[Glenn]

[gimmesomeshelter]

Here's a typical setup.

Oil is pumped in from a special oil pump cover and returned where where the oil pressure sensor screws into the case.

Cheers,

Paul
_________________
"I would rather have questions that can't be answered than answers that can't be questioned."

Richard Feynman

[Glenn]

Got it... I stand corrected.

This is what I was thinking.

_________________
Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"

Member #1009

#BlueSquare

[slalombuggy]

Pressure in a sealed system is equal in all directions regardless of size. There will only be a difference at startup but once it is up to pressure the size of the filter will have no effect on engine oil pressure.

brad