Curious to know if anyone has ever tried building a basic “rig” to get live lap times (or any other data) when indoor/rental karting. I also know there are many iPhone apps that serve this purpose (where you just hit “record” and drive with the phone in your pocket), but I haven’t found any that can work without cell service or GPS enablement. Most indoor tracks that I know of do not have good cell service. In fact, tracks in general don’t often have good service because they are located in rural areas.
What I need some kind of system that is small, easily transportable, and quickly set up (within minutes) to allow me to at least get live in-kart lap times, and maybe even split times or other data, at best. I remember AIM used to make the “MyChron Light TG” (image link below), which was almost the perfect solution because it was so compact it could be velcro’d onto the steering wheel, and it used an infrared beacon instead of a GPS signal. Now I’m thinking of just buying one of my own 
Curious to know if anyone else has experimented with lap timing or data acquisition for indoor karting, and whether you think it has improved your driving? Please comment here!
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