Sender: <marv@lancaironline.net> (Marvin Kaye)
To: flyrotary@lancaironline.net
Date: Fri, 19 Mar 2004 12:00:35 -0500
Message-ID: <redirect-3102417@logan.com>
From: msteitle@mail.utexas.edu
Subject: Re: [FlyRotary] Re: Where to install EGT sensor?
References: <list-3101131@logan.com>
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Quoting "Bartrim, Todd" <sbartrim@mail.canfor.ca>:

> > Agreed that one EGT in the downpipe would be easiest, but what does that
> > buy 
> > you?  I thought the purpose of EGT's was to enable you to monitor each 
> > cylinder.  The cast manifold isn't the best arrangement, but if they are 
> > placed close to the ports, they should give a pretty good indication of
> > what's 
> > going on with each rotor.  That seems to me to be worth the extra effort
> > of 
> > installing two EGT's.  BTW, the EC-2 allows you to adjust the mixture of
> > each 
> > rotor.  But you need to know which way to go with the mixture first.
> > 
> Hi Mark;
> 	The EGT that I have in my turbo manifold is the one that I would use
> for leaning purposes if I didn't have an O2 sensor. Unfortunately it is in a
> location which is exposed to the combined flow of gas from both rotors,
> mostly due to the fact that this was the location of the hole that I had to
> plug from the removal of the turbo switching valve (not wastegate). It would
> be difficult, but not impossible to add 2 EGT's right at the exit from each
> rotor in the stock turbo manifold. Right now I have no reason to suspect
> that I have a mixture imbalance between rotors, however it would be
> desirable to know for sure. Add this to the long list of items to address.
> 	The EGT located downstream of the turbo was installed mostly for
> curiosity of what the temp drop trough the turbo is. And the Digitron that I
> was previously using to measure and display temps had 2 inputs, so why not
> use them?
> 
> S. Todd Bartrim
> Turbo 13B
> RX-9endurance
> C-FSTB
> http://www3.telus.net/haywire/RV-9/C-FSTB.htm
> 
> 	"Imagination is more important than knowledge"
> 					-Albert Einstein
> 
> 
> 

From that perspective, it makes sense to do it the way you did.  

Mark S.
N/A 20B
Lancair ES