O2 sensor display.

[Terry/Carol Kelley]

What price are you looking at? It would be useful if reasonably priced.

Terry Kelley

1986 Olds Ciera GT 3800 Supercharged
-----Original Message-----
From: Regnirps at aol.com <Regnirps at aol.com>
To: gmecm at efi332.eng.ohio-state.edu <gmecm at efi332.eng.ohio-state.edu>
Date: Sunday, April 18, 1999 5:21 PM
Subject: O2 sensor display.


>Hi all,
>
>I have put together an O2 sensor or fuel/air ratio display with 20 lamps
and
>automatic dimming. I'm thinking of selling them and need some feedback. I
>have put up a sort of business looking section on  my website at
>
>www.regnirps.com
>
>to describe them and I have what you might call a beta price point. I made
a
>batch for tuning for some local racers and am thinking of looking for a
>distributor or just web sales.
>
>I would like to know what people think of:
>
>1) Price
>2) Form factor. Is the rectangular unit too hard to mount?
>3) Would you definitely prefer 2 1/4 inch round instrument style?
>4) Would you like a dual unit (I use one for each header, so would like a
>dual myself).
>5) Would you like a combined mixture and manifold pressure unit?  Mixture
>lamps are moving dot, manifold is moving bar.
>
>I have noticed users have definite preferences about the speed of response
of
>the device. The O2 sensor is very fast, you can see individual cylinders on
a
>scope or with an unfiltered display. This "jittery" look bathers some
people
>and I put some filtration in to give an average and smoother readout and it
>is easier to see things like your system response to a big throttle
input --
>it slams lean then swings rich, etc.
>
>Any input appreciated, meanwhile I will be lurking since I want to pick up
>ideas on how to do some stuff to my old 11/1 compression ratio square port
>396. I have been thinking of a totally home grown electronic system with
some
>kind of injection.
>
>Hey, does anybody make a combination spark plug/injector?
>
>Charlie Springer
>
>I just stick on the dash with Velcro
>
>