01-22-2018, 06:17 PM
One trick when calibrating the VMSPc speedometer is when making a correction is to use half the value rather than the full value. That prevents you from overshooting your mark and actually is a bit quicker. At least when I did my '93 and '98 it worked that way. BTW the VMSPc was not perfectly linear but very darn close.
Forest & Cindy Olivier
1987 log cabin
2011 Roadtrek C210P
PO 1999 Foretravel 36'
1998 Newell 45' #486
1993 Newell 39' #337