Originally posted by "The^Thief"
mattback: you got backwards bu i know what you meant, the dyno measures torque only, hp is a derivitive of torque.
as goofy as this sounds, I have personaly whitnessed it.
If you take the tach signal out, the dynojet will still give you hp numbers but no torque, if it truly measured torque and calculates hp, how does it pull that off?
My best guess is the dynojet software measures acceleration over time to calculate hp and then calculates torque from that using the tach signal.
again I have done NO research, this is just what I have seen with my own eyes watching cars on a dynojet.