I read 4-6 Post about Oil Pressure , Oil Filters , Oil By Pass Valves ? _ ? _ ?

[MountainManDan]

so I've read and done some Research as I wanted to Run a Longer Oil Filter - seeing a Oil Cooler Kit which is real Basic for
Kohler 7000 series Motor 24Hp to 26Hp Range seems - Like - I would be Buying an Oil Cooler set up for Freaking Honda Type R or
Blown Mustang 5.0 with 8500 RPM Motor . . $$$$$ Nuts ..

OK so I Look at PH3600 and it stated used on many Riding Lawn Mower Motors - it's - Price isn't Crazy & It Gives Extra Oil Capacity
Plus Extra Metal Hanging out in Wind . . ( May Help Keep Temps in Check . . )


Issue is everything I've Read on this Site seems to Never Answer all Questions . .
1. Oil Flow per Min. ( Quarts or Gallons )
2. 20 Microns , so Not to Fine as in 18 Microns or Lower - to cause large Drop in Pressure . .
3. By Pass Valve 12 psi , so many Talk about By-Pass Valve - but Give Wrong Impression . . as ( It's Difference ) Not when Reaching a Certain PSI . .
4. Most Modern Riding Mower Engines - have what - Oil Pressure all I Find is 25 psi to 50 Psi - which might vary some 10W-30 vs straight 30w
Examples of Actual Oil Pressure - Not Found . . with Oil Weights when Warmed & Running . .
5. Maybe I didn't Look Hard Enough ~ Kohler ~ Oil Filter Spec's ( didn't Find those ) . .
6. Oil Pressure Drop on Normal Lawn More Filters 6-10lbs ( ? ) Warmed Up
7. Oil Pressure Drop on Fine Filtering - like 18 Microns of Lower 8-12 Psi ? Hot ?

Maybe We all could just Clear Up some Facts . . THANKS ~ DAN

 

[kschachn]

Just use whatever the OPE manufacturer recommends. A longer filter isn't going to give you anything even remotely meaningful in this instance.

 

[twX]

A small engine with an automotive oil filter should have a pressure drop of no more than 1 or 2 psi, so filter restriction doesn't matter. Any bypass setting will be fine as long as it isn't much higher than the OEM bypass setting. I'd use a filter with a bypass setting in the range of 8 to 12 psi if you don't know the OEM bypass setting.

 

[The_Eric]

A small engine with an automotive oil filter should have a pressure drop of no more than 1 or 2 psi, so filter restriction doesn't matter. Any bypass setting will be fine as long as it isn't much higher than the OEM bypass setting. I'd use a filter with a bypass setting in the range of 8 to 12 psi if you don't know the OEM bypass setting.

Agreed. An oil pump for your average auto or light truck engine is going to flow way more oil than a tiny little pump in any OPE engine, so many of the OP's concerns matter not.

 

[The_Eric]

so I've read and done some Research as I wanted to Run a Longer Oil Filter - seeing a Oil Cooler Kit which is real Basic for
Kohler 7000 series Motor 24Hp to 26Hp Range seems - Like - I would be Buying an Oil Cooler set up for Freaking Honda Type R or
Blown Mustang 5.0 with 8500 RPM Motor . . $$$$$ Nuts ..

OK so I Look at PH3600 and it stated used on many Riding Lawn Mower Motors - it's - Price isn't Crazy & It Gives Extra Oil Capacity
Plus Extra Metal Hanging out in Wind . . ( May Help Keep Temps in Check . . )


Issue is everything I've Read on this Site seems to Never Answer all Questions . .
1. Oil Flow per Min. ( Quarts or Gallons )
2. 20 Microns , so Not to Fine as in 18 Microns or Lower - to cause large Drop in Pressure . .
3. By Pass Valve 12 psi , so many Talk about By-Pass Valve - but Give Wrong Impression . . as ( It's Difference ) Not when Reaching a Certain PSI . .
4. Most Modern Riding Mower Engines - have what - Oil Pressure all I Find is 25 psi to 50 Psi - which might vary some 10W-30 vs straight 30w
Examples of Actual Oil Pressure - Not Found . . with Oil Weights when Warmed & Running . .
5. Maybe I didn't Look Hard Enough ~ Kohler ~ Oil Filter Spec's ( didn't Find those ) . .
6. Oil Pressure Drop on Normal Lawn More Filters 6-10lbs ( ? ) Warmed Up
7. Oil Pressure Drop on Fine Filtering - like 18 Microns of Lower 8-12 Psi ? Hot ?

Maybe We all could just Clear Up some Facts . . THANKS ~ DAN

Few, if anyone will have the answers to your questions unfortunately.

If you select a common auto based filter like a Wix 51348 or Frame 3614, then you'll have a cheaper, higher quality filter than most all OPE filters and it'll be more than capable to handle your needs, especially compared to an OPE filter

 

[The_Eric]

If you're worried about heat,go up a grade in viscosity.

As far as longevity is concerned,in my opinion, the air filter is more important in OPE than the oil filter

 

[MolaKule]

so I've read and done some Research as I wanted to Run a Longer Oil Filter - seeing a Oil Cooler Kit which is real Basic for
Kohler 7000 series Motor 24Hp to 26Hp Range seems - Like - I would be Buying an Oil Cooler set up for Freaking Honda Type R or
Blown Mustang 5.0 with 8500 RPM Motor . . $$$$$ Nuts ..

OK so I Look at PH3600 and it stated used on many Riding Lawn Mower Motors - it's - Price isn't Crazy & It Gives Extra Oil Capacity
Plus Extra Metal Hanging out in Wind . . ( May Help Keep Temps in Check . . )


Issue is everything I've Read on this Site seems to Never Answer all Questions . .
1. Oil Flow per Min. ( Quarts or Gallons )
2. 20 Microns , so Not to Fine as in 18 Microns or Lower - to cause large Drop in Pressure . .
3. By Pass Valve 12 psi , so many Talk about By-Pass Valve - but Give Wrong Impression . . as ( It's Difference ) Not when Reaching a Certain PSI . .
4. Most Modern Riding Mower Engines - have what - Oil Pressure all I Find is 25 psi to 50 Psi - which might vary some 10W-30 vs straight 30w
Examples of Actual Oil Pressure - Not Found . . with Oil Weights when Warmed & Running . .
5. Maybe I didn't Look Hard Enough ~ Kohler ~ Oil Filter Spec's ( didn't Find those ) . .
6. Oil Pressure Drop on Normal Lawn More Filters 6-10lbs ( ? ) Warmed Up
7. Oil Pressure Drop on Fine Filtering - like 18 Microns of Lower 8-12 Psi ? Hot ?

Maybe We all could just Clear Up some Facts . . THANKS ~ DAN

Here is an answer to most of your questions provided by another member but I suggest you do some more research before throwing out more questions.

 

[MountainManDan]

Thanks to all , so Some History of racing Sleds , Bikes & Running Mountain Canons Roads . .
Porting Turbo's

My Grand Dad - Won Daytona 200 - U Know on Beach in Florida - way back When . . Grew up in His Garage

Pulling Motors at 14yr Old that was a Very Long Time Ago . .
Gain in Oil Capacity of - 5 Oz. on Series 7000 Riding Lawn Mower is 14% Gain

14% on Your 5Qt Cars & Trucks = 22.5Oz - 24.6Oz. as most carry Touch more do to Oil Filter 5.25qt. or 5.5qts
Those are Water Cooled , so Air Cooled - I would Think every Oz Counts . .

Run it twice now , to do Yard - Right about 1hr ~ 1.2Hrs Depending on How Tall Grass is . . with 9-10% Grade & Steeper in few Area's
( all of Which are Under 15sec. Run in Extra Steep Area's ) 880lb Tractor with Self Locking Rare which tends to Pull some Power ..
It's Not like CUB XT3 that is Dis-Engaged - until U Turn it on ..( Motor is Working Fairly Hard ) Heavy Welded Deck also ..
Hills - I'm looking for Every Bit Help . .
I already added Extra Layer of Foam to Filter as Pre Filter from Day Mower got it's First Oil Change at 10hrs , then 20hrs
Book Calls for every 50hrs after Break - In . . more like 38hrs every Season . .

Ever Since I Experienced some what I Deemed to be Oil Filters that were Consistent with Build Quality . .
with Honda's Oil Filters - which is Small short Filter & My First Experience with Newer Oils - 0W-20 & 5W-20

That Motor got Switched to HP-1010 which gave a Notable Difference , so I started Looking Harder at Mowers Filter
As I Placed Higher Performing Boss Filter for SYN 20K Rated First 2 Filters were OK , but 1 yrs later as things went into Covid
3rd Boss Filter wasn't on My Motor 1000 Miles & Gone as it was Dragging Motor Down - as Soon as Went to HP-1010 Motor Perked right Up & got Better MPG . .

Sorry for Rambling On . .

 

[MountainManDan]

Looking at Flow Rates for Mowers , anyone have anything Qts per Min. or Gallons Per Min. , Thanks

I see where some saying Reduction in Flow Rate due to Oil Cooler , but I Always found that Just Amount running through Cooler wasn't Full Flow , Only Percentage & Stat's on Most Sandwich Cooler Adapter Open Progressively . .

Lots of Great Info Here , just Not able to Find it All . .

 

[kschachn]

That Motor got Switched to HP-1010 which gave a Notable Difference , so I started Looking Harder at Mowers Filter
As I Placed Higher Performing Boss Filter for SYN 20K Rated First 2 Filters were OK , but 1 yrs later as things went into Covid
3rd Boss Filter wasn't on My Motor 1000 Miles & Gone as it was Dragging Motor Down - as Soon as Went to HP-1010 Motor Perked right Up & got Better MPG

Just no.

 

[The_Eric]

Here is an answer to most of your questions provided by another member but I suggest you do some more research before throwing out more questions.
View attachment 276105

Wouldn't that vary depending on journal size and bearing clearance?

 

[MountainManDan]

Depends on many Things - I Think & Hope all were done on Same Motor with Same Gauges . .
2 Oz. wash out between Test & Marvel Run for 1/2Hr. Prior to Draining , then Fresh Oil Added Back in . .

Or How about 500 Miles of Highway - @ 70Mph on All Oil Before Test . .
I could come with 15 More Reasons to get Closer to Real Life Test . .

Would that be Nice , If someone did same Thing but with 6 Different Oil Filters . . During all Testing
To Produce 6 More Testing Results . .

Test Rig Is What ? ( Yeah )

 

[MolaKule]

Looking at Flow Rates for Mowers , anyone have anything Qts per Min. or Gallons Per Min. , Thanks

I don't know what this has to do with your scattered data and thoughts but there are online unit conversion sites:

https://www.unitconverters.net/flow-converter.html

I see where some saying Reduction in Flow Rate due to Oil Cooler , but I Always found that Just Amount running through Cooler wasn't Full Flow , Only Percentage & Stat's on Most Sandwich Cooler Adapter Open Progressively . .

Lots of Great Info Here , just Not able to Find it All . .

Is there a specific question you need to ask because this thread keeps rambling with no end in sight.

Here is some basic fluid flow theory that should help your understanding:

https://www-eng.lbl.gov/~shuman/NEXT/GAS_SYS/pipe_flow_tutorial_bast1203.pdf

 

[MolaKule]

Wouldn't that vary depending on journal size and bearing clearance?

It could, as well as the size of the piston jets, etc, etc.

The OP wanted what I interpreted as a general oil flow graph for engine components. If you have specific answers to the OP's questions, then I am sure he would be thrilled.