Message-ID: <005c01c3c833$3e498a00$1702a8c0@WorkGroup>
From: "Ed Anderson" <eanderson@carolina.rr.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
References: <list-2900007@logan.com>
Subject: Re: [FlyRotary] Re: Dumb intake question
Date: Sun, 21 Dec 2003 21:28:10 -0500
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Subject: [FlyRotary] Re: Dumb intake question


>   Ed,
>
>     Is it possible to get the same effect by extending the runner length
>  outside of the throttle body rather than between the intake port and the
>  throttle body? My memory may be failing but as I recall the four rotor
>  race engine had the sliding intake runners outside the throttle
butterflys.
>     Inquiring minds want to know!
>
>    Best Regards and Happy Holidays,
>    Kelly Troyer
>

I would think so, Kelly, don't see any real reason why you wouldn't get some
effect.  The Leman's 4 rotor had sliding plates rather than butterflys which
moved completely out of the way,  to minimize any distrubance to the air
flow.   But they were positioned close to the port rather than out on the
end of the pipes like a TB.  In fact, I just went and checked their lengths
and my estimates for Rusty are very close to their lengths for the RPMs he
wants to run.  The big difference is they are running PP rather than side
intakes, which does change the port timing a bit and I don't know their
timing.

Ed Anderson.