Simple carb-based systems, who?

[Rolf Ask Clausen]

Hi,

I've been lurking some time, and have a few really low-tech
questions:

I'm toying with my old Volvo Amazon (121, B20 engine) and has fitted
an oxygen sensor in order to look a bit on the mixture and possibly
use this data to adjust or change the carburettor setup. This works
well with a simple bar graph display.

Now to get on a bit, it seems a simple idea to use the lambda signal
to control a valve in a small extra air pipe, bypassing the carb, and
I know this has been done. The aim being to move the resulting
mixture closer to stoich, ie. a low tech system improving on what I 
have without changing the whole thing.

My question is: Who has done this? Are there any suppliers of some of 
this in kit form? What kind of electronics (computers?) are used?


Venlig hilsen 
(Yours)
Rolf Ask Clausen (BSc)
Redaktionschef, Ingenicren
(Managing editor, Ingenicren)

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rac at ingenioeren.dk                   sig. modified mar. 12.
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