I'm flying a TN IO-550N right now.

At 32" MP it is baby bottom smooth down to 185d F  LOP.

I'm not even slightly kidding or exagerating.  13.5  gph and still
smooth at 32" x 2500 RPM.

The F/A ratios ARE closely matched.  The magnetos/harness are in
excellent condition.

Regards,  George


-----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of
Marvin Kaye
Sent: Thursday, June 22, 2006 11:43 PM
To: Lancair Mailing List
Subject: [LML] Re: TSIO 550 break-in

Posted for Lancair <lancair@USTEK.COM>:

  A test pilot at Columbia said that my roughness was typical - they see
it
all
the time on the 400's.  Has not been linked to ignition in their
testing.
  They think that it might improve with GAMInjectors.
  Robert M. Simon
  ES-P N301ES
  

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