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From: Walter Atkinson <walter@advancedpilot.com>
Subject: Re: [LML] Re: Lower Cowl Air Temperature - Induction Air - Heater Air Temp
X-Original-Date: Tue, 9 Aug 2005 07:41:49 -0500
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Rob:

**I still challenge anyone to get it all vaporized before the valve 
without adding a really large heater or a really large runner!**

Getting anything to ALL happen is pretty tough, but it's quit possible 
to get the vast majority of the fuel vaporized and the way we can tell 
that is by having a very small DIF number on the cylinders.  The best 
I've been able to accomplish is on a radial engine.  I've come close on 
a TCM O-520, but not quite.  I think the real issue is to get the fuel 
in as small as possible droplets and as vaporized as possible as early 
in the induction system as possible.  That evens out the F:A 
distribution to all of the cylinders better than anything we've tried.

Walter
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Rob:


<fontfamily><param>Arial</param><x-tad-bigger>**</x-tad-bigger><x-tad-bigger>I
still challenge anyone to get it all vaporized before the valve
without adding a really large heater or a really large
runner!</x-tad-bigger><x-tad-bigger>**


Getting anything to ALL happen is pretty tough, but it's quit possible
to get the vast majority of the fuel vaporized and the way we can tell
that is by having a very small DIF number on the cylinders.  The best
I've been able to accomplish is on a radial engine.  I've come close
on a TCM O-520, but not quite.  I think the real issue is to get the
fuel in as small as possible droplets and as vaporized as possible as
early in the induction system as possible.  That evens out the F:A
distribution to all of the cylinders better than anything we've tried.


Walter</x-tad-bigger></fontfamily>
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