Here are another couple of wideband options:
Daytona -
http://www.daytona-sensors.com/WEGO3.html
This has included in the controller, input for TPS and RPM and built-in data-logging capability.
One of nice features of the Logging Software is the configuration Utility for the TPS
So for example, the 955 TB TPS runs from about 0.6V to 4V;
Enter those values in the configurator as equivalent to 0-100% and you get the proper throttle opening.
Then from the data log software, you can get an AFR analysis in similar configuration to the ECU map table
And even a % change graph to how much change you need to make your target A/F
Very nice - makes the tuning much easier!
Very simple display available (although not absolutely necessary for tuning - it is nice to see real-time what is going on)
This system runs about $438 plus ~$80 for a simple AFR gauge from VEI
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Then these options from
Zeitronix -
http://www.zeitronix.com/order/order.htm
The ZT2 + ZR1 gauge looks to be the best option here
The ZR1 is a really nice slimline gauge, nice for motorcycle - or there are other options available.
Has a nice option to order with a 'short' harness for Motorcycle application
This kit also has TPS and RPM inputs and includes data-logging capability
If you want on-board storage, you can add the Black Box DataLogger -
http://www.zeitronix.com/Products/BlackBoxDataLogger/BlackBoxDataLogger.shtml
They have their own DataLogging Software
Or you can also use this with WinLog -
http://www.devtechnics.com/winlog.htm
WinLog also has a very similar Graph View output similar to the system employed by the Daytona software - so again, very good tool for adjusting the Triumph Table.
Price on this system is going to be $379 for the controller plus the ZR1 gauge
Add $99 for the on-board logging memory/controller
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Please note that I have no personal experience of either of these devices - just a 'on-paper' review of their capabilities