Nolan, what a great article!
I had to bookmark it. A very powerful methodology,
shows what some common sense and ingenuity can
accomplish.
And when cheap WB O2 meters become available, this
will still be just as valuable.
I now have access to machining services, and have
considered making needles. With this article, I could
actually do them properly. ;)
Thanks a ton.
Carter
--- Nolan Penney <npenney@mde.state.md.us> 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.
>
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