[Pete D]

If I want to increase oil pressure do I do it at the pump? I'd like 60-70psi.

I am installing a remote dual filter set up so there won't be a bypass. Is that a problem? I bought the Butler oil fitting plate because changing the filter is a messy job due to the headers.

[Schurkey]

The oil pressure relief valve is on the oil pump. That is what determines oil pressure, in combination with bearing clearance, oil viscosity, etc.

The filter bypass has nothing to do with adjusting oil pressure. It is intended to allow a path around a plugged oil filter.

Some oil filters have a bypass built-in. I'd rather have dirty oil than no oil.

[steve25]

I ran a remote duel filter set up using two 2 Qt filters pumped up by a off the shelf 60 psi pump.
I took my oil pressure reading off of the output side of the filter bracket and once the oil temp was up to 100 degrees I saw the full 60 psi of the pump

[charlie66]

Yes at the pump. You can either shim it or get a better spring. If you shim it, do it with thin washers while its on an engine stand so you can shim it till you get your psi number you're looking for.

[Bill Hanlon]

But realize that shimming or otherwise adjusting the spring only increases the maximum pressure in the system. It won't do anything to increase low pressure on a worn engine.

[Tom Vaught]

Originally Posted by Bill Hanlon

But realize that shimming or otherwise adjusting the spring only increases the maximum pressure in the system. It won't do anything to increase low pressure on a worn engine.

Agree.

Installing a Oil Pump with "taller" pump rotors is the only way to increase the lower rpm oil pressure. Or adapting a larger pump from a different vehicle that has more "Volume" (Oil Moved) per revolution.

The Modern Oil Pumps driven by the crankshaft vs the camshaft (Think LS Engines) have the same diameter and number of Voids for oil to fill, but can have a different Pump Gear THICKNESS per application to fine tune the proper oil volume at low speeds that Mr Hanlon refers to.

Tom V.

[KEN CROCIE]

If your dual remote setup uses a ford style filter, there is a relief (bypass) valve in the filter.

[Will]

On a typical Melling 60 psi pump, a 1/8" hardened washer under the spring will get you right about 70 psi.

Be sure that whatever you use to shim the spring is hardened steel.

Also note that there are, or were at one time, 40 psi pumps available. In the old days these pumps were physically different, had smaller pickup tubes and possibly different thickness gears (not sure on that). In any case, shimming one of those or replacing the spring wouldn't work well, better to get a new 60 psi pump if that's what you have.

[Squidward]

Originally Posted by Will

On a typical Melling 60 psi pump, a 1/8" hardened washer under the spring will get you right about 70 psi.

Be sure that whatever you use to shim the spring is hardened steel.

Also note that there are, or were at one time, 40 psi pumps available. In the old days these pumps were physically different, had smaller pickup tubes and possibly different thickness gears (not sure on that). In any case, shimming one of those or replacing the spring wouldn't work well, better to get a new 60 psi pump if that's what you have.

1/16" is the right thickness.
http://forums.maxperformanceinc.com/...d.php?t=809174

[Will]

Originally Posted by Squidward

1/16" is the right thickness.
http://forums.maxperformanceinc.com/...d.php?t=809174

Yeah, that's probably right. I did that 18 years ago now. I can't even remember what I had for breakfast today.