My New Years resolution is getting my
dyno working.
I am getting together all the parts that I need.
I have a running P-port RX8 engine for testing.

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


Paul

I built 2 of the analog versions and got them both basically working. Still have 1 with the display. I never got the data logging feature of it to work. TekEdge sent instructions and the download for the logging firmware. However the instructions were so complicated and convoluted I couldn't get my analog mind around it. Since I had other data logging I didn't continue with those updates. I don't recommend their kit because the build instructions are full of corrections and exceptions to corrections that could become pitfalls.
I recently got an Innovate LM-1 which I think is a better instrument altho it doesn't have any logging.

Robert

Thanks Robert for the heads up. I am not going to use their RS232 data logging. I just monitor the voltage out.  Was shipping from Australia a problem?
Are you interested in selling a unit that works?

Paul Lamar