I’m curious about these as well.
Good info. (EDIT: I'm in NH, and dust typically isn't an issue like it was when I lived in TX, and to some extent CA.)
Sound deadening isn't an issue; I could care less how much more induction noise there is.
I'm solely after removing all restrictions, so that the engine can breathe optimally. (short of adding forced induction) I would be fine with upgrading the cone filter at a later date once it starts to lose performance/efficiency/gets dirty.
To your knowledge, is there a higher quality drop-in filter that actually improves airflow? I've assumed a new paper filter was pretty efficient as-is.
Group project/Show & Tell when it arrives.
iamdub brought up some good points in post #29 about heat, so I may just line the inside/outside with some metallic tape for a made up R-Value of 2.2, and call it a day. As mentioned earlier, I live up in NH, and it never gets that hot here for more than a couple weeks a year.
(actually the other problem, it gets cold... to the point several years ago the oil gelled in my 2004 Xterra. I had to get a chicken coop heater attached to my oil pan for a day before I could drain and flush the coagulated oil out. It was a couple weeks of -10, or colder.)
Edit: Upon further research it's probably more like an R-value of 0.02
I appreciate your breakdowns, but I already ordered a CAI. I'm interested to see what changes there'll be. I'm guessing it'll just be increased induction noise.I wish I could find that test I was talking about earlier, but it was years ago and I probably read it in a Super Street or Sport Compact magazine or something. But, they tested the various filter medias with a tube (shop vac?) and something like a paper towel on the "clean side" of the media to see what the filter let pass. IIRC, they also tested volume (restriction) somehow.
More recent testing (although kinda lame and it's not the panel style we have):
I appreciate your breakdowns, but I already ordered a CAI. I'm interested to see what changes there'll be. I'm guessing it'll just be increased induction noise.
I saw you had ordered one. I was just adding to/completing what I had already posted.
Which intake did you get?