Does anybody know what output a 3 wire o2 sensor puts out? I had an idea
awhile back, to weld on two adaptors on the outermost exhuast manifolds not
only to check out overall mixture settings, but to balence the mixture
settings on both carbs. screw in an oxy sensor on one, and a blank on the
other.
if the o2 sensor output is a simple voltage output depending on mix, I have
a simple voltage -> digital converter that plugs right in a serial port on a
laptop. Their software allows you to log the voltage over a period of time.
Hook it up... go for a drive... Hook it up on the other, go for a drive,
compare, adjust, and re-check.
Thanks
Toby
|>
|>Thanks for the team.net link.
|>I don't know if I would prefer an analog gauge. Checking the
|>fuel mixture
|>under hard acceleration at high rpm requires checking the
|>gauge out of the
|>corner of your eye, colored LEDs might be easier for this.
|>On my X1/9 I mounted the gauge "temporarily" right in front
|>of me, up high
|>until I have the dual carbs dialed in.
|>
|>I got my O2 sensor from Peter C. at a good price with
|>instructions of how to
|>hook it up.
|>
|>Ulix
|>
|>on 9/13/00 11:46 AM, Graziano, Michael at
|>michael.graziano@csfb.com wrote:
|>
|>> FYI. I thought this was a great page, and very useful.
|>I'm expecting my
|>> Fuel/Air gauge this week. I bought a CB products analog
|>gauge for about $50
|>> along with a spark plug antifouler and an O2 sensor for an
|>'87 Nissan 300ZX.
|>> The sensor was about $50 from autozone (A three wire Bosch
|>Unit). Well, I
|>> actually have my old one from my 300ZX. I'll get the new
|>one next month.
|>>
|>> Try http://www.cbperformance.com/catalog.asp?ProductID=598
|>for the gauge.
|>>
|>> Glen, this might prove to be quite useful for setting up
|>your Turbo Bugeye.
|>>
|>> Mike
|>>
|>>
|>> -----Original Message-----
|>> From: Nolan Penney [mailto:npenney@mde.state.md.us]
|>> Sent: Friday, September 08, 2000 1:43 PM
|>> To: Spitfires@autox.team.net
|>> Subject: SU Needle selection and Air/Fuel Gauges
|>>
|>>
|>>
|>> 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.
|>>
|>>
|>> This message is for the named person's use only. It may contain
|>> confidential, proprietary or legally privileged information. No
|>> confidentiality or privilege is waived or lost by any
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|>> preliminary only and subject to our formal written confirmation.
|>>
|>>
|>>
|>>
|>>
|>
|>--
|> Ulix __/__,__
|>___/__|\__
|>..............................................(_o____o_)....<_
O_____O_/...
|>http://www.mirafiori.com/~ulix/ '67 Sprite '74 X1/9
|>
|>
|>
|