One of the other things I need is a wide band mixture
monitor. Rather than have just a digital read out I would like to
record the data on a Hytek Automation 12 bit  8 channel data acq USB
module which I have.

I intend to try out several different EFI systems and
eventually turbo compounding. This information is essential
for tuning the EFI systems.

I ran across this Australian company on the net.
Anybody have an experience with this company?
http://www.techedge.com.au/vehicle/wbo2/
http://www.techedge.com.au/vehicle/wbo2/wbntk.htm

What I like about this system is it's compatible with a
data acquisition
system.

Here is the wide band problem in a nut shell. The Bosch
wide band sensor puts a current out  ranging from a
minus to a plus and I need a linear voltage out put in the
range of zero to 5 volts. This company sells the box that
does the conversion and a digital display.  It is
generated by a 12 bit Digital to Analog Converter using a 65
word lookup table (with linear interpolation for improved
resolution).

Don't confuse this with some of the narrow band O2 sensor
systems.

Paul Lamar


Robert LeClercq sent me a wide band mixture monitor for the dyno.
This is a complete computer with a lot of I/O.
Thanks Robert. Looks well made.

Paul Lamar



Hi Paul

Silicon Chip - see http://www.siliconchip.com.au/cms/A_111598/article.html  has just published a wideband controller for the Bosch sensor.
I'll be building one up shortly. It has  what your looking for I think, a 0-5v output (Wideband) as well as a simulated narrow band S curve output to feed into an existing ECU input.

Cheers

Steve Izett
Perth WA