[Pete Munroe]

Lots of good data on various types and sizes of air filters on the Superformance Newsletter..."Second Strike" May 17th, 2005

It has actual data to compare filters as to media...foam, paper, oiled fabric, diameter and height, and "style", round vs. oval.

Hope you can find the Superformance Letter. I TRIED to load the pdf. Can't. Forum limit is 39 kb and the pdf file is a massive 196kb.

As to the "best flowing set up" ? A round, 14" X 3", seems to hit the knee of the curve for air flow...less is worse, more isn't much better. You can juggle the media.

BUT the 8" S&H filters are VERY period correct and cool...especially on dual fours. If you need really need more flow...take them off ! Enjoy your track weekend...replace them for the street.

Pete