Larry and others...

I have a question about the ram air design you and others
(including factory Mooney's) use.  If you pick up
sand/dirt/rocks while running filter air, won't they just
sit in front of your valve (inside bottom of the scat
hose)?  Then wouldn't it just get sucked into the engine
when you open the valve to ram air?  I have spent a lot of
time noodling how to keep something like that from
occuring - namely putting the valve at the VERY front of
the cowl to where it would actually fair into the front
cowl.  But this is a tremendous amount of work.  Or putting
a small hole in front of and below the valve to let
dirt/debris "drop" out (but then losing ram...)?  Am I
making a mountain of a molehill????

Matt

> Some time ago I was asked for a photo of my Y valve used
for Filtered vs
> Ram air.  Attached are two photos.  You'll notice it had
to be very
> tight to fit into my cowl.  This prototype has one major
flaw.  While
> running exclusively RAM airflow, it backwashes the
filter.  This slight
> pressure loss is only relevant while racing.