Re: speed per 1000RPM for 147 2.0TS Selespeed
Originally Posted by Simon_S
I assure you that this is what happens!
The ABS speed sensors are calibrated in true km/h and this is what gets sent to the speedo. Speedos must by law never read lower than the true speed so I guess 10% is added to ensure this.
I did a comparison with a Garmin and the speedo shows 5km/h faster than the GPS reading.
Speedo vs. GPS (plus/minus 0.2km/h)
70 - 65
80 - 75
90 - 85
100 - 95
110 - 105
120 - 115
130 - 125
140 - 135
Seems to me that there is a 5km/h difference regardless of speed, not sure if it will still be 5km/h all the way to the top speed since I don't have a chance to go beyond 140 this morning, but will post result later.