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


Hi Paul;
I have one of the tech-edge DiY kits - it has not assembled itself since
I bought it quite a while back ;)
It was one of the recommended kits with megasquirt.
Note that it is RHOS - no lead.
Cheers
Cary

That is OK. I will test it with unleaded.

BTW do you know anybody making RX8 exhaust flanges? I am thinking of
getting a batch made up.

Paul Lamar

Sorry, I meant to say the tech edge WB O2 kits are made with lead free
components, not the good old lead soldered bits.
For some of the other folks, leaded gas will dramatically shorten the life
of the O2 sensor. 100LL should kill one in no time.

Racing Beat and Mazdatrix list the RX8 exhaust flanges, probably
Mazdaspeed as well.
Cheers
Cary

I found some headers but they won't work in tractors. No flanges for the block
outlets however. Do you have the right links?
--------------------------------------------------------------
opss here it is. Good price too at $47.

http://www.mazdatrix.com/getprice.asp?partnum=16169

Paul Lamar