[T3] Speedometer/Odometer ratio?

[Mike Fisher]

Aspect Ratio of the original tires?

On Thu, Feb 9, 2012 at 11:11 AM, Jim Adney <jadney at vwtype3.org> wrote:

> On 9 Feb 2012 at 11:03, Brian Fye wrote:
>
> > i would expect that to mean their version of a 'final drive' ratio.
>  Could
> > very much be that for every revolution of the wheel, you get .80 or .82
> > turns of the final gear in the speedo.
>
> That won't be it, because the speedo part is direct drive, no
> reduction. I don't know what the odometer reduction is, but it's
> huge.
>
> This is the case in all VDO speedometers. The speedo is calibrated by
> adjusting the strength of a magnet, and the odometer is calibrated by
> picking the right reduction gear ratio.
>
>
> --
> *******************************
> Jim Adney, jadney at vwtype3.org
> Madison, Wisconsin, USA
> *******************************
>
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