When testing, you should have a plan. Take all the data you can, but do not let the data influence your test plan. Do your normal testing. Download and save the data, but look at little more than splits, and min/max speeds.
You go back later, days later, and figure out why some things worked. If this approach is taken, you can NEVER have too much data. Would you turn down data like this (tire temp profiles as well as tire forces) for a kart?
After all…every single adjustment you ever make on a kart is meant to impact how the contact patches are behaving.
I am working on some affordable electronics to achieve just this. The temps are actually easy. It is the strain gauging that is tough on a rotating axle. But it can be done. Of course, the Motect C185 dash in this car is $5,000 base price…
I would not be surprised if factory kart teams are not already doing this with in house set ups.