Originally Posted by ovekvam
What if you use a performance meter application like Racechrono, using the speed data from the car by bluetooth from the OBD2 plug? That should be fairly accurate.
I guess the biggest problem is to make a consistent launch for the driver. Maybe easier with automatic transmission and DSC enabled.
I do not have an OBD reader. I tried a few apps on the iphone (like Dyno and M Power Meter) but the results where not accurate nor consistent.
The biggest problem as you say is the launch of the car. Even on same tarmac (I have auto box), the DSC sometimes intervenes more than other times, so it cuts more power or for longer period.