Mailing List flyrotary@lancaironline.net Message #36667
From: al p wick <alwick@juno.com>
Subject: Re: [FlyRotary] Re: Throttle body size/ other "Paul" issues
Date: Tue, 1 May 2007 07:53:10 -0700
To: <flyrotary@lancaironline.net>
This is very important concept..... When you have a theory(pauls TB diameter), try to find ways to convert it to facts. Usually there are simple ways to do so. You could also compare rpm with throttle plate closed a bit compared to full throttle. If no difference, that too would indicate the theory bogus. Although I prefer Tracy's approach.
 
-al wick
 
On Mon, 30 Apr 2007 10:18:53 -0400 "Tracy Crook" <lors01@msn.com> writes:
 
   Here's a simple test you can do to remove the 'opinion factor' out of this discussion.  If your manifold pressure at WOT is the same as ambient barometric pressure (at low altitude), there is nothing a larger TB will do to improve it.  If MP is less than ambient, start looking at your intake path factors like inlet, SCAT tubing (if used), air filter, and anything else in the air path.  If none of these are the limiting factor, then and only then should you think about going to a larger TB.
 
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