The speedometers are only "calibrated" in a loose sense. As others have said, the number on the speedo face is the number of turns of the cable to register 1 unit on the _odometer_. Interestingly, VDO uses only two different parts for metric and mile speedometers -- the odometer drive gears, with either ten or sixteen teeth. Close enough, I guess. The Syncro speedos have two different parts too, making a total of four speedos. There are other numbers on the speedo faces as well -- like "805", "810", "800", but I suspect that they are all really "800"s. If you want to really be accurate, VDO sells a $100 electronic speedometer that reads pulses off the speed sensor (Vanagons don't have one, but VDO sells a $40 sender too). You push a button, drive one "unit" and push it again. If you change tire sizes, or move to Canada, you simply recalibrate it. Malcolm |
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