[Diy_efi] Re: Burning Aluminium etc.

[gary]

> he indicated that there was a company coming out with a 
> feedback system

You make it appear as if you heard it for the first time, through 
John's recent emails to you.   :confused:   You were well aware
of this info previously, and realize this info was made available
several years ago, from previously having read his 'Pelican Perch' 
articles.  After all, you DID post you had read *ALL* of his articles.  
BTW, what company is he (John Deakin) referring to, and what is
this relatively SIMPLE 'timing control system' known as?

> .... sounds very much like they must be using ion sensing for this,

As you have read *ALL* of JD's articles, you obviously know this
relatively 'simple' system apparently does not. 

GAS


----- Original Message ----- 
From: "Adam Wade" <espresso_doppio at yahoo.com>
To: <diy_efi at diy-efi.org>
Cc: <jdeakin at advancedpilot.com>
Sent: Monday, April 18, 2005 5:50 AM
Subject: Re: [Diy_efi] Re: Burning Aluminium etc.
> 
> Well, pilots only "know" EGT.  They don't use O2
> sensors and don't really know what lambda they are
> running at any given time.  Ignition timing, as John
> noted in his emails to me, is often fixed for all
> throttle positions, engine speeds, and mixture
> settings.  In his last email to me, he indicated that
> there was a company coming out with a feedback system
> to best time the PPP automatically; sounds very much
> like they must be using ion sensing for this, as it
> would be the least expensive and most feasible method.
>  That would help things a great deal, I'd say,
> especially WRT setting mixtures that could cause
> elevated EGTs.