Modifying Engine Oil Relief Valve

[LBZ]

last melling i installed with .0025-.0027 main clearance and .0022-.0023 rod clearance, i saw about 10 psi increase at idle and up the RPM range. 15w40 oil and around 90* outside temp. never saw under 28psi at idle and hot after running it hard.

it will be hard to say the actual PSI increase you will see because most are building an engine at this point and clearances in mains/rods/ect can open up more for higher performance.

Was it one of these?
https://m.summitracing.com/search/y...y/duramax-diesel-v8?keyword=Melling Oil Pumps

This is the only one summit lists. Standard flow and pressure. Not sure if that's what I would want or not.

 

[LBZ]

TTT. Anyone?

 

[malibu795]

Was it one of these?
https://m.summitracing.com/search/y...y/duramax-diesel-v8?keyword=Melling Oil Pumps

This is the only one summit lists. Standard flow and pressure. Not sure if that's what I would want or not.

What I run.
30psi at 700 rpm idle at 190° oil temp
70psi at 2100 rpm at 190°
Mains/rods are low mid .020s
Pegs 83psi cold @#2 main journal via mechanical gauge

 

[LBZ]

What I run.
30psi at 700 rpm idle at 190° oil temp
70psi at 2100 rpm at 190°
Mains/rods are low mid .020s
Pegs 83psi cold @#2 main journal via mechanical gauge

What oil pump?
I run 10 to 20 degrees hotter oil temperature running 70mph, 1950rpm, gcvw around 16000.

Oil pressure doesn't change though after it passes 190 degrees.

 

[malibu795]

Melling 316.. one you linked from summit
When oil temps get upwards of 240° I see ~10psi drop at 2100 and 5-8psi at idle.... It was close to 50% increase in temp related drop with stock pump

 

[Dan@PPE]

Might want to try one of these first, we have seen a increase in oil pressure throughout the rpm range, this is due to un-shrouding the pickup in the pan

http://www.pacificp.com/store/index.php?main_page=product_info&cPath=2_130&products_id=684

if anyone is interested in one, let me know, I offer DD discounts!

 

[GSXRTURBO1]

Nice oil pan....very nice!

 

[TQMONSTR]

how much of an oil pressure increase can we expect to see with the new oil pan?

 

[Dan@PPE]

Nice oil pan....very nice!

Thanks we spent a good amount of time on the design! I think it turned out really well!

how much of an oil pressure increase can we expect to see with the new oil pan?

approximately 5-10 psi at idle. :thumb:

 

[LBZ]

Money back guarantee Dan?

 

[LBZ]

Fack and I just changed my oil an hour ago.....

 

[Dan@PPE]

Money back guarantee Dan?

for you???? Sure!

 

[malibu795]

Might want to try one of these first, we have seen a increase in oil pressure throughout the rpm range, this is due to un-shrouding the pickup in the pan

http://www.pacificp.com/store/index.php?main_page=product_info&cPath=2_130&products_id=684

if anyone is interested in one, let me know, I offer DD discounts!

Pros/cons between yours and the banana pan?

 

[Harbin_22]

The banana holds less oil than stock for one. And it's called the banana pan lol

 

[LBZ]

Pros/cons between yours and the banana pan?

Wtf is this banana pan you speak of?

 

[LBZ]

for you???? Sure!

 

[malibu795]

Wtf is this banana pan you speak of?

https://bananapan.com

 

[LBZ]

The banana holds less oil than stock for one. And it's called the banana pan lol

Apparently they make a deep one that holds more but it costs more than ppe so they lose lol.

Although they do have more options like a spot for a zerostart oil heater.......

https://bananapan.com/deep-dish-bananapan/

 

[moparkxracer]

I have the original banana pan on mine, it holds abt 1 cup less oil then oem. Not sure how low the ppe deep one would hang down under the truck.

 

[Dan@PPE]

Don't want to clutter up this thread anymore... See here for more info on the PPE Deep oil pan...

http://www.duramaxdiesels.com/forum/showthread.php?t=73290