> Bill I do not have a filter on my IO320 and have been looking at the RV
WEB
> site for a suitable solution.  Would you share the model/part number that
you
> used and let me know what modifications might be required?
> Thanks
> Gary Melton, Sacramento area
> LNC2 N320GG flying

Hello Gary,

I'm not sure that Van's makes more than one airbox. It's the one used on the
RV4's and RV6's with O-320 engines. One of the reasons that the Lancair
airbox is so crummy is that it trys to fit between the carb and the bottom
of the unmodified cowling. That makes it way too thin and way too
complicated (IMHO). So installing the Van's box will require you to lower
the airscoop area of your cowling by about 1 1/2 inches. With a little body
work, no one will know. My extremely unscientific guess is that any increase
in drag from the slightly larger airscoop area of the cowling will be offset
by the more efficient shape and design of the Van's box. (better pressure
recovery, see the past several day's posts). My speeds seem to be about the
same as most other 320's (except Scott, of course who's much faster  :-).

Bill
harrelson@erols.com
N5ZQ  LNC2  O-320  VA42