Energy Recovery Oil Pump traits?

[Todd Gross]

Originally Posted by SSDiv6

Vern Schummann knows his stuff and makes various versions of his oil pumps for each engine application.

If your application is for a Stock or Super Stock engine, this pump is an overkill.

This Energy Recovery version of his pump is more effective when used with a Petersen external oil pressure regulator and to adjust its operation, in lieu of an oil pressure gauge, you use an inline flowmeter and adjust the oil pump for a specific oil volume flow.

I know of a racers that have been using the Energy Recovery oil pump with the external regulator successfully on high RPM engines making 1000+ HP.

If your application is a Stock Eliminator, his Pro Standard version of the pump would suffice; if a Super Stock, you can use either the Pro Standard or the Pro Maxx version of the pump.

You are absolutely correct about Vern knowing his stuff. I'm not disputing that or knocking his product. I'm just trying to get as much understanding as I can to feel confident about my customers oiling system.
This pump was special ordered and speced out for a Factory Stock application when ordered. With that said, using an external regulator is not accepted as I'm sure you know.
There are others in F/S using the energy recovery pumps that is why the owner requested to switch over.

[SSDiv6]

Originally Posted by JMan

You are absolutely correct about Vern knowing his stuff. I'm not disputing that or knocking his product. I'm just trying to get as much understanding as I can to feel confident about my customers oiling system.
This pump was special ordered and speced out for a Factory Stock application when ordered. With that said, using an external regulator is not accepted as I'm sure you know.
There are others in F/S using the energy recovery pumps that is why the owner requested to switch over.

The regular LS OEM oil pump puts out 4~6 GPM's of flow and will cavitate past 6000 RPM. The Schumman pump has an output of 8.5+ GPM's past 6000 RPM's.
Ask Vern how low you can go on oil pressure and still keep at minimum 8.0+ GPM at high RPM's without cavitating.
Also ask Vern if he has a weaker relief spring that would do the job in lieu of cutting more of the spring.
Eventually with use and heat cycles, the spring will change its tension.

[Signman]

Are you running a paper oil filter or screen?

[Todd Gross]

Screen filter. I do not know how many micron off the top of my head.

[SSDiv6]

Originally Posted by JMan

Screen filter. I do not know how many micron off the top of my head.

Does it have a bypass?
The wrong microns and lack of bypass can create the issue.

[Todd Gross]

Originally Posted by SSDiv6

Does it have a bypass?
The wrong microns and lack of bypass can create the issue.

That was a good suggestion and the owner could not come up with the micron spec. It does have a bypass, but again, don't know the rating.
I advised him to remove the cartridge and start it to see if there was a difference.
He just reported back, no change. I'll call Vern again tomorrow.

[SSDiv6]

Originally Posted by JMan

That was a good suggestion and the owner could not come up with the micron spec. It does have a bypass, but again, don't know the rating.
I advised him to remove the cartridge and start it to see if there was a difference.
He just reported back, no change. I'll call Vern again tomorrow.

JMan,
If the oil filter is a System 1, remove it and put a standard Wix or Hastings oil filter and test the pressure again.

The System 1 billet oil filter has a known history of giving problems to many racers and engine builders with either extreme high pressure or oil pressure fluctuations.

The only billet oil filter I recommend is the Pure Power Billet oil filter.
It has a bypass and it is well engineered for the specific engine, including a dedicated oil filter for LS engines.