Odometer calibration figure (km vs mile)

[RedMk2Gti]

Any one know what is the number under the km/h mean in the speedo ?



I've been told it is the calibration figure, I have a UK cluster in (mile per hour) but still has small km/h figure, but the calibration figure is 1540. are they interchangeable ?

[anarchycamp]

That number translates to the number of revolutions the speedometer cable makes to register 1 mile or kilometer depending on what its setup for.

So for a mile....
1609.344 (meters) / 1540 = 1.045028571428571

And for kms....
1000 (meters) / 950 = 1.052631578947368

So (i think!) they are slightly different but nothing too major.

[Golf Loon]

There are also different cogs that you can fit to the end of the cable that effect the readout on the speedo.

[Jarred]

Not sure on the speedo's myself, but in my old audi (which was MPH) I used the GPS to figure out my speeds, and just remembered what the reading was on the MPH speedo. Didn't take too long to get used too.

[Jace]

40km/h is 28mph,
50 is 33,
60 is 37,
70 is 43,
80 is 49,
100 is 62.

That's off the top of my head, so don't quote me, but no speeding tickets in 2+years!

[RedMk2Gti]

That number translates to the number of revolutions the speedometer cable makes to register 1 mile or kilometer depending on what its setup for.

So for a mile....
1609.344 (meters) / 1540 = 1.045028571428571

And for kms....
1000 (meters) / 950 = 1.052631578947368

So (i think!) they are slightly different but nothing too major.

Ya I worked out they are close, but I fitted the MPH cluster and the speedo is massive different from actual speed, I also use my GPS to check speed.

[jamesd]

1540 would be right. The only other mph one they did in the Mk2 was 1505, but that's for 08x gearboxes which AU never saw...