Other than the expected things; engine, input shaft, driveshaft RPM, O2s, G-force, what else is monitored with the data recorder on these cars?
engine vacuum, 3 ride height sensors, fuel flow, 4 shock sensors,wheelie bar load sensor, and tps. I'm sure I'm forgetting a couple.
Which are "nice to know" information and which are "can't do without"? Or is all of it important to tuning during to course of an event?
every sensor is important but as a engine builder I usually look at the vacuum first after a run. It gives me a look at how good the motor is sealed up.
