DIY-WB defined

[Rob MacMorran]

Thanks.  I don't know if this is already common
knowledge, but you can find the Napa o2 sensor online
at:
www.napaonline.com
Choose Advanced Search and enter the part number below
OS791

The price is $140.

--- Bob Valentine <bob at tecmark.com> wrote:
> You might try starting here:
> 
> http://www.diy-efi.org/diy_efi/projects/diy_wb/
> 
> There's also a lot in the archives.
> 
> -> Bob Valentine
> -> bob at tecmark.com
> 
> At 02:17 PM 8/24/2001 -0700, you wrote:
> >Very cool.  Do you have information on the source
> for
> >the sensors?  I'd like to check them out.
> >
> >- Rob
> >
> >--- cmillard at crutchfield.com wrote:
> >> Rob,
> >>     The purpose of the Do-it-yourself Wideband O2
> >> sensor is to replicate a
> >> air to fuel ratio tuning tool that normally is
> only
> >> available starting off
> >> at $1,500(est.)
> >> 
> >> Why:
> >> Most factory fuel injection systems use a NB
> (Narrow
> >> Band) O2 sensor, or
> >> two, or four, which are really only accurate at
> >> stoich (14.7:1) This is
> >> useless for WOT (Wide Open Throttle) tuning,
> since
> >> we're shooting to tune
> >> anywhere from 11.0:1 (big blown) - 13.1:1 (NA) at
> >> this point.
> >> 
> >> So:
> >> A wideband sensor is accurate in a wider
> spectrum,
> >> giving us the ability to
> >> tune the AFR's we need. An interface will be
> needed
> >> to report the data (bar
> >> gauge, digital gauge, voltage output to pcm for
> >> logging, whatever.)
> >> 
> >> Thus:
> >> The DIY project allows individuals to buy a PCB,
> a
> >> parts kit, and an
> >> inexpensive (couple hundred est.) factory
> wideband
> >> sensor for input. 
> >> 
> >> Conclusion:
> >> I've watched this project for a long time and
> envy
> >> the wealth of knowledge
> >> shared in development, I wish I could have
> >> contributed, but It's way outside
> >> my field (and caliber). 
> >> 
> >> I have faith in the project and my skills, so I'm
> >> going for it. DIY is the
> >> way to go when other methods aren't cost
> effective.
> >> 
> >> Hope this helps,
> >> -Christian
> >> 
> >> 
> >> -----Original Message-----
> >> From: Rob MacMorran [mailto:rmacmorran at yahoo.com]
> 
> >> Sent: Friday, August 24, 2001 2:44 PM
> >> To: gmecm at diy-efi.org
> >> Subject: Re: DIY-WB Parts Kit update
> >> 
> >> 
> >> Can someone re-explain the purpose/use of this
> kit
> >> for
> >> new list members like myself?
> >> BTW, hello, I am just a guy in St. Louis, MO who
> has
> >> too many hobbies and too little time.  I joined
> this
> >> list because I have a general interest in fuel
> >> injection systems and improving fuel economy
> (also
> >> on supercarbs list (which
> >> is not just about carbs btw)), but also because I
> am
> >> currently sticking a 95
> >> Corvette LT1 motor+transmission into a 1976
> Datsun
> >> 280z for my weekend fun
> >> car.  I will need to modify the ecm for various
> >> things such as VATS and the
> >> fuel curve (because I will be installing an ATI
> >> supercharger as
> >> well.)
> >> I plan to use the car as a test bed for some fuel
> >> economy experiments including hydrogen boost and
> >> water injection...
> >> 
> >> 
> >
> >
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