Data logging

[djr81]

I am interested in doing some data logging (atleast in some form) of my Grandmother doing laps of the local circuits (OK, its me, I just drive like my Nanna). So far I have only found three half way reasonable solutions, as follows:

3D Gtech: Not cheap at about $700 and appears to be designed mostly for drag racing. It uses accelerometers & integrates results to get speed/distance etc. Unfortunately this won't get you a reliable corner speed readout. Works on a memory card, which is great.

FC - Datalogit: This should be able to give you a record of all engine parameters & speed, distance etc (Already have a Power FC). Cheap at $400, but you need to cart your laptop everywhere. Has anyone ever used this for mapping laps?

www.innovatemotorsports.com have a nice looking air fuel meter and data logger setup. The Australian agent prices these at $620 for LM-1 and $320 for the LMA-3 expander logging box, which can log 6 parameters at 12 Hz for up to 44 mins, including, a built in 2 axis accelerometer. Still need to lug your laptop and the whole setup looks expensive, but effective.

Does anyone have any comments on the above and/or any recommendations?