A question for the physics-minded among us:
I'm wondering how important is the consistency of initial speed,
A, in coastdown testing where the data gathering will begin at speed
B, somewhere below A.
EG: let's say I decide to measure coastdown times/distances from 90 km/h to 0 km/h.
Does a vehicle decelerate at a different rate from, say 90 to 80 km/h depending on whether the initial speed (clutch in/neutral) is 95 km/h or 110 km/h?
Just wondering for the sake of producing the most reliable results.
And no, my cruise control is currently NOT working, which is really why I'm asking
. Don't want to rely on wetware (me) to accurately control speed if I don't have to.