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SRT oil filter

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GratefulDenglish

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I have been using the comparable SRT oil
filter from (WIX 57899XP) for the last two changes. Anyone else using the same? Larger capacity with slight increase on the by-pass from 12 to 16psi. Ordering another for an up coming change and figured I would get some input / offer my experience to the forum.
By-Pass Valve Setting-PSI:16
Anti-Drain Back Valve:Yes
Burst Pressure-PSI:275
Max Flow Rate:9-11 GPM
 
GratefulDenglish said:
I have been using the comparable SRT oil
filter from (WIX 57899XP) for the last two changes. Anyone else using the same? Larger capacity with slight increase on the by-pass from 12 to 16psi. Ordering another for an up coming change and figured I would get some input / offer my experience to the forum.
By-Pass Valve Setting-PSI:16
Anti-Drain Back Valve:Yes
Burst Pressure-PSI:275
Max Flow Rate:9-11 GPM
Click to expand...
What are the specs on the stock filter?
 
Crusty old shellback said:
My thoughts as well. Being we probably run more at lower RPMs than a SRT, we need the higher flow rate.
Click to expand...

These engines use postive displacement oil pumps, meaning, doesn't matter how restrictive the filter is or how thick the oil is, it's always going to pump the same amount of oil through at a given RPM. The PSI might increase on a choked/more restricted filter, but the actual flow or volume of oil will not change, the pump forces the same fluid through regardless.
 
:confused::oops:
I understand the pump. But the filter IS a restriction. AND it will reduce the amount of flow from the pump.
The oil flows from the pump to the filter, then to the engine. IF the filter gets too restrictive, THEN the bypass opens. So the oil no longer gets filtered.
 
Crusty old shellback said:
:confused::oops:
I understand the pump. But the filter IS a restriction. AND it will reduce the amount of flow from the pump.
The oil flows from the pump to the filter, then to the engine. IF the filter gets too restrictive, THEN the bypass opens. So the oil no longer gets filtered.
Click to expand...

It won't reduce the flow, it will just increase the pressure of it. The pump forces the same amount of oil through. You will not change the flow rate by getting a more or less restrictive filter.
 
How can it push the same amount if oil thru the filter if it's more restrictive? Doesent make sense.
The pump is rated at a certain amount of flow for a certain amount of restriction. As the restriction goes up, so does the pressure going in, but the flow out goes down.
Also the oil pump has a pressure relief valve in it for when the restriction on the output causes too much pressure out of the pump.
 
Last edited:
I am following the flow rate/oil pump/pressure discussion but think if someone could provide the specs on the OEM Mopar filter regarding the by-pass and max flow rate then we would have a true comparison between the OEM and the Wix XP (SRT spec). My thoughts are the slightly larger filter has more media for filtering, a comparable max flow rate and a higher by-pass rate. This information is based on Wix filters specs and seems that the SRT XP is a plus. OEM information would be the only way to compare apples to apples.
 
GratefulDenglish said:
I have been using the comparable SRT oil
filter from (WIX 57899XP) for the last two changes. Anyone else using the same? Larger capacity with slight increase on the by-pass from 12 to 16psi. Ordering another for an up coming change and figured I would get some input / offer my experience to the forum.
By-Pass Valve Setting-PSI:16
Anti-Drain Back Valve:Yes
Burst Pressure-PSI:275
Max Flow Rate:9-11 GPM
Click to expand...
I use the wix 57060xp. I have had better luck with it than the mopar filter. By better luck I mean longer OCI before the ADBV fails.
 
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