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Re: SU Needle selection and Air/Fuel Gauges

To: Nolan Penney <npenney@mde.state.md.us>,
Subject: Re: SU Needle selection and Air/Fuel Gauges
From: "T. .R. Dafforn" <td214@cam.ac.uk>
Date: Wed, 13 Sep 2000 16:49:30 +0100
I was very interested in what you wrote, the Morgan link opened my eyes 
somewhat!!
Now I remember dimly that somewhere someone said that fitting a freeflow 
(sponge)
Air cleaner could affect the mixture and that different needles where required, 
any
ideas...
Cheers
Tim
Nolan Penney wrote:

> http://www.team.net/www/morgan/tech/tuning.html
>
> This link is to an excellent web article on selecting SU needles using an
> air/fuel gauge.  This is why I think the gauge is so usefull.  If you've ever
> considered trying to optimize the needle selection for your particular engine,
> this web page is vital reading.  Not only for the knowledge you will gain,
> but for the software in it.
>
> The SU Needle spreadsheet program is there for determining your needle
> profile at each station, but for selecting other profiles.  Good stuff!  I 
>sucked
> it into an Excell spreadsheet so I could have the pretty lines to admire in a
> graph.  I'm a visual sort of guy, so I can grasp lines far quicker then I can
> grasp a column of numbers.
>
> Lastly, if this inspires you to want to install an air/fuel gauge, I suggest 
>you
> at least look at this link.
> http://www.autospeed.com/A_0020/P_7/article.html
> It's about $65 now, which is roughly twice as much as a digital one costs,
> but boy is this thing pretty, and right in keeping with a Spitfires analog
> gauges.

--
Tim Dafforn
Structural Medicine
Department of Haematology
CIMR
University of Cambridge
Wellcome-MRC Building (Level6)
Hills Road
Cambridge
CB2 2XY

Tel. (01223) 336829
Fax. (01223) 336827
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