The gauge is $30 from Summit Racing. An (unheated) sensor can be had for
~$30 at your local auto parts store. For a fitting, you can use a "spark
plug anti-foul adapter" and cut it off. Weld the upper half to your
downpipe (after you drill a hole) and you are donw.
Ulix
On Fri, 14 May 1999, HFC wrote:
> There are units on the market for just such applications.  Rather inexpensive,
> $100-$150 U.S.  A number of sensors are available too.  The more expensive
> being more sensitive and yielding quicker readings; easier to monitor through
> RPM range.
> WFO Herb
> Keep the sticky side down!
> 
> Andy Webster wrote:
> 
> > Christian,
> > how would you 'read' the sensor? It sounds like a good idea but I'm curious
> > to know how you would 'interface' it
> > I'm never satisfied that my mixtures are right
> > Andy
> > >From: Christian Stanton <cstanton@pixley.com>
> > >Reply-To: Christian Stanton <cstanton@pixley.com>
> > >To: jurban@p3.net
> > >CC: Spridgets@autox.team.net
> > >Subject: Re: CFR engine
> > >Date: Fri, 14 May 1999 10:51:25 -0400
> > >
> > >For the curious you can get more info for DIY engine controls at:
> > >http://efi332.eng.ohio-state.edu/diy_efi/
> > >
> > >I have thought about adding an O2 sensor next time I have exhaust work to
> > >do.
> > >This allows you to tune the carb for the best air/fuel ratio rather than
> > >rely on the indirect tuning methods.
> > >
> > >Christian Stanton
> > >'78 Midget 1500 - Waiting to be painted
> > >'68 Saab 96 V4 - Waiting for the midget
> > >'86 Saab 900 - Bane of my existence: needs steering rack, front wheel
> > >bearings, l.front inner axle, panhard rod bushings, and a good swift kick
> > >in the boot.
> > >
> 
    Ulix                                       __/__,__      ___/__|__  
..............................................(_o____o_)....<_O_____O_/...
                                              '67 Sprite     '74 X1/9
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