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From: Walter Atkinson <walter@advancedpilot.com>
Subject: Re: [LML] Electronic Ignition Timing Charts
X-Original-Date: Thu, 12 May 2005 09:17:22 -0500
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Scott:

**BTW, mixture is an apparent timing shift.=A0 Rich burns faster than=20
lean.=A0**

As it turns out, this is a major effect.  You must quantify how rich=20
and how lean for the second statement to be accurate.  There are some=20
rich mixtures that burn slower than some lean mixtures.  As a matter of=20=

fact, 40dF ROP is the fastest burn rate mixture.

The charts you posted are true for a given mixture.  As the mixture=20
changes, the chart values would change.  Mixture has a major effect on=20=

the effective timing...  which is the only thing we really care about.

Walter=

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Scott:


<fontfamily><param>Arial</param><smaller>**BTW, mixture is an apparent
timing shift.=A0 Rich burns faster than lean.=A0**


</smaller>As it turns out, this is a major effect.  You must quantify
how rich and how lean for the second statement to be accurate.  There
are some rich mixtures that burn slower than some lean mixtures.  As a
matter of fact, 40dF ROP is the fastest burn rate mixture.


The charts you posted are true for a given mixture.  As the mixture
changes, the chart values would change.  Mixture has a major effect on
the effective timing...  which is the only thing we really care about.


Walter</fontfamily>=

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