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Message
Rusty, some of the cones have an opening on the
intake in and another smaller cone that is inside the large cone for increased
filtering area. They don't specify the dimensions of this inner cone so I
conservatively just make it 10% of the total filter area of the larger cone. Its
probably more than 10% and if you want to get real conservative just leave it
out. If its just the regular one cone then you just ignore the smaller
cones calculation. If really pressed for space (as some folks claim they
are) the double cone gives you more filter area in a smaller space.
That filter should give you approx 352 square
inches of filter space. For a 13B at 7000 rpm K&N area
calculation says 53 sq inches is sufficient, so yes, I think I can safely say
you have more than enough filter area. So thats good as it will give more
filtering and less airflow obstruction.
Ed
----- Original Message -----
Sent: Tuesday, April 19, 2005 1:39
PM
Subject: [FlyRotary] Re: Area calcuation
for Cone air filters was [FlyRotary] Re: Air filters
Neat
spreadsheet Ed, but I don't understand what the "inner cone" is. There's
just one cone on these right? Just to make sure I'm reading this right,
how about checking my thoughts here.
I am
looking at the K&N cone shaped filter # RU-5111. It has a 3"
flange, 4.5" base, 3.5" top, and is 5.75" long. It looks to me like
this gives plenty of area. Do you agree (before I order
it)?
Thanks,
Rusty
(may fix my low temps with a
supercharger)
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