Sorry, I missed this one.

 

You probably mean 9 GPM. That is plenty and the bigger filters can do that with ease. Look at the little stock filter can from Mazda. Looks like a toy. The one K&N on a remote mount is fine as well. I run two on a mount because the engine builder wanted 16 GPM but that is for over 9,000 RPM with larger than even racing bearing clearances. Plus we use a big Moroso pump and 100 PSI. I would not use the stock filter, and never a Fram. Cut open an example of a K&N and a Fram and lay out and measure the paper element material. Note the construction materials. Note the springs. Note the thickness of the can material.

Note the surface area provided. The more paper (Filter people call it Media) the lower the pressure drop across the element.

 

The remote mount can be improved dramatically with a die grinder and a ball bit. Smooth everything involved in oil flow. Contour the ends of all fittings in the oiling system. Use sweep 90s instead of drilled 90s where possible. A drilled 90 has the same drag as 3 feet of hose.

 

You must assume that any oil cooler you came up with (even a new one) and any hose you had made up, has scrap metal in it or assembly grease or rubber scraps. (flappers) The filter must be between that cooler or hose and the engine bearings.

 

Lynn E. Hanover

 

 

 

My question would a single NAPA

1515 or K&N filter flowing 9 gph put the restriction I am trying to eliminate back in..........??  

Kelly Troyer