Is my bypass flow too high?

[Razl]

I measured the flow of my oilguard EPS10 recently on my 2.4 4-cyl Honda:

1) 950 RPM warm idle / 20psi = 14oz per minute ( roughly 1/2 qts per minute)

2) 3,000 RPM / 50psi = 56oz per min (1 3/4 qts per minute)

The bypass is fed from a T fitting off of the oil sending unit using supplied Push-Loc hose. The fittings are JIC & Swivels, 1/8" I think. The specs on the EPS10 say it has a 0.040" orifice size with a 1qt/min flow rate.

The response I got back from them was, "You do not need to be concerned. This is still a small percentage of the total full flow of oil per minute (less than 10%)."

Should I try to reduce flow to 1qt/min? If so how? Or am I just being paranoid

[ February 10, 2005, 02:36 PM: Message edited by: Razl ]

 

[Gary Allan]

Any loss of apparent pressure? Any "noise"?

 

[Razl]

No Gary. Even in V-Tech (>5,000 RPM) mode it sounds the same. Loud and smooth. I'm guessing the oil pump is producing adaquate flow to the FF filter. My concern is the amount of oil the bypass is returning to the valve cover through the oil filler cap. I would tap the oil pan but am uncomfortable not knowing how much clearance there is on the other side.

I sent in a 10,00 UOA to Blackstone about 3 days ago so I should find out shortly if any problems exists. As for the splashing in the upper part of the engine, the anti-foaming additives seem to be working well. I do not notice any bubbles on a freshly drawn dip stick.

 

[Gary Allan]

I would not think that the added flow would cause any problems. You probably have a tremendous flow up top anyway with the cams slinging oil around pretty liberally.

 

[Ken2]

Did you measure the flow out of the adapter, or out of the filter? The filter has significant resistance to flow itself.


Ken

 

[Razl]

I measured the flow AFTER the filter, using the return line that goes into the oil filler cap.