no air filter
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Offline alleycat

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no air filter
« on: December 02, 2010, 07:13:21 PM »
Hi, Does anyone fly their plane without an air filter?
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Offline Britguy59

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Re: no air filter
« Reply #1 on: January 23, 2011, 01:51:21 PM »
In a way. I have an intake system that allows me to switch from filter to a ram air intake with a lever in the cockpit. Filter for take off, then gear up and switch to Ram air. The ram tube sits in the intake scoop and has only a mesh (screen room type ) in it, vs a standard paper filter on the other  side. I use a heat valve set up to switch. I get an obvious power boost when I switch.
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Martin Hulme, Zephyrhills Florida.

Made it to Oshkosh 2011.

Offline easyrider

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Re: no air filter
« Reply #2 on: January 27, 2011, 09:38:06 PM »
I use a Hunt ram airbox with a K&N filter.
When I was racing vintage cars I spent a lot of time on the dyno. with my 1100cc Formula Junior engine.
There was no difference in power output between Webber carbs. with no air filter and carbs. fitted with K&N filters.
Easyrider
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