The sensor will only read correctly when it is hot. That's why ot needs to
be mounted close to the head. On my Fiat, which has a header, I want to
mount it in the collector and that's why I will go with a heated sensor.
The cheapest heated one I've found was around $45 I think.
Ulix
On Fri, 14 May 1999, Hanna, Mark wrote:
> Hi Ulix ,
> I've read about single wire , 2 wire , and 3 wire sensors . Can you
> enlighten us ? Are you mounting
> it in the down pipe because it is not a heated o2 sensor ?
> Thanks ,
> Mark Hanna
> AN5L/13731
> > -----Original Message-----
> > From: Ulix Goettsch [SMTP:ulix@u.washington.edu]
> > Sent: Friday, May 14, 1999 2:50 PM
> > To: HFC
> > Cc: Andy Webster; cstanton@pixley.com; spridgets@autox.team.net
> > Subject: Re: O2 sensor,was CFR engine
> >
> > 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
>
Ulix __/__,__ ___/__|__
..............................................(_o____o_)....<_O_____O_/...
'67 Sprite '74 X1/9
|