So there was a thread a long time ago about this wideband but I never saw anyone who actually ordered it up and used it. I prefer old school needle and sweep gauges to digital stuff as its easier to watch transitional AFRs without datalogging that way. This is exactly what I want but I wanted to see if anyone has actually used it in the Z world. Just wanted to know accuracy, life expectancy on the sensor, ease of use with the software, etc. Thanks in advance:

http://www.widebandcommander.com/

 

I've never used dynojet stuff in cars but in sportbikes their stuff is great for tuning etc. I'd assume the transition isn't too far...

 

Hey Mia, the one bad thing about sweeping gauges it is really difficult to actually determine what your precise AF ratio is. This is why nearly all WB gauges use a digital readout. I'd also be interested to know the speed of that gauge. If the needle moves in a lazy fashion, that would be less than ideal.

 

I tend to agree although sometimes its difficult to see transitional AFRs with a digital gauge since theres no sweep. The numbers shift to quickly unless you are datalogging. Thats why I wanted this for a quick transitional reference but for dyno time I can always use the logger...

 

Analog gauges work best for rapidly changing values because digital readouts become a blur under that condition. I have been using a DynoJet WBC for about 6 months on a turbo bike and have done a lot of on road tuning with it. IMHO their Autometer gauge is the best one on the market for this purpose. The reaction time is very fast but you can adjust the sensitivity if you wish to slow it down. I have had problems logging the TPS signal but from what I have read it may be particular to my application.
The software is pretty straight forward but the live on PC screen replay function has limited value and if your tuning you may end up just looking at logged data. I have been able to avoid logging all together just by working on one throttle setting at a time and recording A/F and rpm on a chart.
The life of the sensor has a lot to do with how close to stoichiometric (14.7:1) you run (likely not even close on a turbo) and the exhaust gas temperature. Wide band sensors do not like the high temperatures coming off a turbine and it needs to be mounted downstream as much as practical. I ignored this on the first install, put it 6 inches away and the sensor lasted about 10 hours. It is now installed 30 inched downstream. The life expectance is yet to be determined but I don't expect a long-term relationship with it. You can find their Bosch sensor on-line for about $70.

 

Thanks that is exactly what I was looking to hear. I plan to put the sensor in the downpipe where Turbonetics has the extra bungs so its pretty far from the turbine discharge....Appreciate the feedback!!