Hi Jason,
I understand what you are saying about the results you found regarding the tests run in the 50's and 60s specifically W.S. James and B.G. Brown. They are in direct contradiction to the results of the studies I found. I guess a person believes what he believes.
Here is what I wonder: Why do K&N - supposedly the premier filter if you ask NASCAR- researchers "allow" their filter to be out performed by a crappy 70 year old oil bath air filter? And why did the wetted AMSOIL filter assembly fair so well (the best ot the 3)? And the answer is: testing methods today vs 1950, oil today vs 1950, and engines today vs 1950. So really it is a pointless argument. If there ever was a "comparing apples to oranges" discussion, it is this one. What works today in racing or on the street is a far cry from what worked 60 or 70 years ago in an environment that does not exist today nor in machines that arent made today. To me it seems academic and only theoretic as results are insignificant - not that there arent differences, but the differences are truly inconsequential.
