Gauging interest...pun intended, Semi-custom wired Wide Band O2 meter, AFR Options

[Mark Henry]

I'm making up several 14point7 SLC free 2, WB O2 meters for customers and myself and just wondering if this would be of interest to the brotherhood.

Problem with most O2 meters is the wire harness, most of the time they are just a bit short for a clean rear/mid engine install. The wires are often cheaper quality loose wire covered with the Chinese finger puzzle like plastic sheathing.
I'm using a high quality sheath, twisted, 6 wire with shrink wrap tubing on the ends, for the main harness.

[Mark Henry]

The meter works with any fuel, gas, diesel, alcohol, propane, NG, hydrogen...you just need to know the fuel's stoich. The meter is self calibrating and uses the latest 4.9 LSU Lambda.

The sort of bad is it only shows the raw lambda signal.
This isn't too hard to get your head around as it shows a decimal value that you times by the fuel stoichiometric ratio. For gas that's 14.7, so a reading of 1.00 X 14.7=14.7:1 AFR. you don't have to do the math every time, just remember the range.
So for our aircooled cars say you want between a 12.5 to 13.5 AFR, so all you have to remember is you want a range between a .85 (12.5) and .93 (13.5) reading.

This is how many data loggers show AFR, how auto technicians would read AFR in modern cars and it's how I see values on my Durametric pro for any Porsche with OBD2.

The huge bonus of the system is it shows the lambda temperature, this will tell you if you have the bung/lambda mounted in a correct location, also if the lambda heater is working and if a lambda is getting beyond it's service life.