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Date: Mon, 14 Jan 2002 12:27:43 EST
Subject: Re: LNC2 Fuel Injector Info and Survey
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Rob,

You wrote <In my TIGER I did alot of work on this.. see http://rob.com/cht/>

Thanks for the info and the data at your web site.  I see that your Tiger cyl 
#2 had the same "symptoms" even though using a carburetor (assumed because of 
"carb heat box" not "alternate air").  With respect to EGT performance, I 
would say the basic cause is the same -- a leaner air/fuel ratio than other 
cylinders.  In an injected engine, it seems there are many ways to get that 
combination, some of which are to have an imbalance in the fuel delivery 
system, air induction system or, as we found, in the injector environment 
itself (fuel delivery?).  

I should have said that Tom's injected 360 has the throttle body mounted 
below/rear of the oil pan with a hi-pressure slow-speed ram air plenum and my 
320 has the oil pan mod so that the throttle body is mounted on the forward 
face of the oil pan -- straight hi-speed ram air, no bends or filter before 
the throttle body.  The differences in these induction systems led us away 
from suspecting an imbalance there, although one may exist.

As you found that manipulating the airflow around cylinder #2 can affect its' 
CHT, we also believe some baffling changes coud be effective once the 
cylinders are more evenly producing power.  

Scott Krueger

PS The paragraph stating 120 degrees lean of peak is in error, it should be 
120 degrees RICH of peak.

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