Mailing List lml@lancaironline.net Message #10181
From: <CHBAviation@aol.com>
Subject: Re: 345hp lycoming
Date: Thu, 28 Jun 2001 01:14:19 EDT
To: <lancair.list@olsusa.com>
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In regards to message sent 6/20/01 from Epijk@aol.com

Floating - should be flow

This is not my flowbench.  As I mentioned earlier, to get more info you will
need to contact John at Aircraft Cylinder Repair @ 303-659-7101.

CFM does have a direct effect on HP.  There is a series of formula that came
with the flow bench that converts flow into HP.  Do I personally know that
the numbers given are exact...no.  However, I do know that I've done this
procedure on 4 dif engines.  And all ran stronger, cooler and smoother.  The
Feds like it and think it's working.  I've found John to be one of the few
who can perform this procedure.  I believe in last months Kitplanes, in the
Engine Beat section there was an article where someone else felt as strong
about this as I and listed John in the article.  

I agree with the HP being determined by chamber swirl and tumble etc.,
however every engine is effected by these exact same thing.  Flow balance
will give you a starting point to work from.  

Pistons - I agree with you that high compression pistons lower your TBO.  
They tear up your engine due to excessive vibration.


Chuck

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