I am planning on a data recorder for my new car, mainly to record drive-shaft speed vs. engine rpm to see where the car is working and where it is not.

I am not looking for the high end stuff, just what will get the job !!!!

Looking for suggestions and opions.

Thanks, Roop

The Autometer playback has driveshaft input, as well as the VDO, I think, but the resolution of the playback tach feature of the Biondo Mega boxes is good enough to spot wheel slip easlily.

I will never run a car without one again.....Biondo stuff rocks!