>>  Hi Paul,
 >>  Thanks for the analysis on the oil gallery size.  Wouldn't the larger
 >>  -10 hose have lower pressure loses than -8 hose?

Is it enough to

 >>  matter?

Paul and group,
The Oil line size is not a big deal unless you have a system that could require 
full flow. That woouldn't be common in a semi-closed loop system like our engines. 
The biggest problem with different sized lines is the area where the line steps up 
or down. The step area can cause cavitation at high flow, and foaming of the fluid. 
Sometimes the diameter difference camn be used to your advantage like in a cooler 
where you want slower flow for heat transfer. Bill Jepson

Speaking of stepping down the usual dash ten used for oil cooler plumbing
steps down from .5 inch ID to .4 inch ID. That cannot help the flow :)
I think I am going to dash 8 everywhere. Dash 8 is a better match with
the 10 mm oil passages in the engine. Further more it is easier to route 
dash 8.

Paul Lamar
 
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