Flow with different filters

[oldhp]

Originally Posted By: dnewton3

And remember, "most" oil pumps turn 1/2 the crank speed. The newer engines have dual-stage oil pumps. Less drag at lower RPM's, more flow at higher RPM's.


I am not saying you're wrong, but this is news to me.

Can you give a few specific examples? Any links or photos? Data?

Just want to understand if I'm in the dark here (wouldn't be the first time in my life ....

Example; Small block chevy. Camshaft rotates 1/2 speed of crankshaft. So camshaft drives oil pump at 1/2 RPM of crankshaft.

 

[Triple_Se7en]

Originally Posted By: bbhero
One interesting note is there is quite a difference between different brands of oil filters when it comes to flow rate. Wix claims 8-11 gpm vs a Mobil 1 which is 3 gpm. The larger M1 110a has a flow rate of 5.5 gallons per minute.


There are three different level Wix models for most passenger vehicles. Which one has the 8-11gpm rating? Is it the value priced Wix, or the one priced alongside the Fram Tough Guard and NAPA Gold?

 

[bbhero]

The regular Wix black filter that is the Napa gold sold at those stores.