EGOR Output Signal Survey

[Bruce]

From: "Kooser, Jacob" <jake_kooser at mtnsat.com>
Subject: RE: EGOR Output Signal Survey >
> >> It is a heated 02 sensor, so I don't know what difference, if any, that
> >> would make.
> >Just guarantees it gets hot enough to work.

> That's what I thought.  Any thoughts on the radical needle swings?

If you look down the venturi of a engine running at a high enough speed that
it's not just running on the transfer slot you'll see the fuel sort of gets
a sheeting look to it.  This sheeting is no where near uniform in thickness,
because the pulsations are spread out, so the thick areas of it generate a
rich mixture area.   With a good sensor and Oscope you can easily see each
cylinder fire.  At the EFI POWWOW you could easily see how you could pick
out a particular cylinder miss.  Was with a WB but the response time I've
heard are about the same.

> >>  The VW carb wasn't a "proper" Weber, but one of the Holley /
> >> Weber "progressive" 32/36 millimeter throat carbs.  Think of a baby
> >>4-barrel
> >> sawed in half, and they're known for being a bitch to tune correctly.
> >Some brass rod, lathe, soldering iron, metric drill bits, thumb vise all
ya
> >need..

> Better tuning idea - give entire car to my neighbor, who later gives me
350
> TBI engine & electronics out of van project he abandons...

Not really,  the better you understand the manifolding of a Carb, the easier
it is to see how to get a TBI to work well.

> >The
> >> quadrajet is just a plain ol' q-jet.  No ccc for me me me.
> >Only trouble with the CCC carbs were no one learned how to get em right.
> >Other then a little fuel sloush they are are good as any EFI
> >Bruce
> Wouldn't mind the CCC, but for the time & trouble, I'd prefer a TPI setup.
> Learned enough about carbs to know I don't really want one. ;-)

Didn't spend near enough time on em.
The real advantage of EFI over carbs is timing management, and cold run
emissions.
With a given manifold I've run the dame numbers from TBI to carb, and would
bet about the same with TPI
Bruce


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