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Date: Sun, 3 Feb 2008 14:58:11 -0700
From: Bob White <bob@bob-white.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Low compression rotors
Message-Id: <20080203145811.e0586bda.bob@bob-white.com>
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Hi Bob,

You will get a little more power with the 9.7:1 rotors.  Back in 89
when they put them in, Mazda upped the hp rating from 146 to 160 for
the car engine. ref: Mazda RX-7 on Wikipedia,
http://en.wikipedia.org/wiki/Mazda_RX-7

Bob W.


On Sun, 3 Feb 2008 13:44:13 -0800
"bob.kaufmann" <bob.kaufmann@cox.net> wrote:

> Gang
> 
> I have a 20B that I have taken the turbos off and will be using it in an
> aircraft, a RV-10.  A friend of mine said that I should use the 9.7
> compression rotors instead of the turbo rotors.  What say you all?  
> 
> I have pulled the engine off to powder coat the engine mount and if I'm
> going to switch rotors, now is the time before I hang the engine again.  I
> have the flat plate on milling machine so I could make plates for the 20B if
> people wanted.  I think I would be competitive.  I would like to do them in
> groups of ten if people are interested.  
> 
> Bob K 
> Finished except all the parts aren't together yet.
> 
> 
> --
> Homepage:  http://www.flyrotary.com/
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-- 
N93BD - Rotary Powered BD-4 - http://www.bob-white.com
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