I would like to monitor AFR and boost on my SC'd Elise. What needs to be installed and where? I want to use a dashDAQ for data logging as well, and would really like to know what package I need, parts, and cost. From what I know, a bung has to be welded on the exhaust prior to the cat for A/F Ratio. And a Boost sensor has to be connected to a vacuum tube running from the supercharger. I guess the one that is the one between the bypass valve and the sc. Need help on that one.
Also, if I didn't want to install the wideband AFR and boost cables and only had a DashDAQ, could it get a reading of the AFR from the 2005 Lotus Elise ODB II? AFR is my primary concern, and I would rather just plug into ODBII, but if the the following is the only option, then so be it.
The following items are from
Zeitronix
$879 Zt-2 + DashDAQ Touch Screen Display and Datalogger Combo
Includes the DashDAQ Display plus Zt-2 Wideband Air/Fuel Ratio Meter, Wideband Oxygen Sensor, Sensor Harness, Signal Harness, PC Serial Cable, Datalogging Software, Installation Instructions, and 2 pin EGT connector to retrofit your EGT probe. Zeitronix-DashDAQ has a full color, touch screen display and logs Zt-2 and OBDII parameters. Click here for details. Made in the USA.
and 1 of the following. I don't understand which one I need.
$109 MAP, Boost Sensor, 50 PSI (3.5 Bar) absolute pressure
This means vacuum and 35.3 PSI gauge at sea level.
or
$119 MAP, Boost Sensor, 75 PSI (5 Bar) absolute pressure
This means vacuum and 60 PSI gauge at sea level.
Less expensive than most peak and hold boost gauges. Connecting harness and hose barb included. Made in the USA.
Is this all I need?
A DashDAQ alone is expensive at $679