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Subject:Re: odometer tires speed error
From:Larry Hamm
Date:Mon, 19 Apr 1999 11:48:33 -0600

Per Lindgren wrote:
>
> Larry Hamm wrote:

> > Horace,
> > Your speedo is reading low by about 5%,

> Isnt it the other way round? When your speedo shows 100, youre doing 95?
> PerL

 Per,
The speedo cable is turned by the left front wheel. With stock wheels
and tires, a particular number of wheel revolutions will produce a
certain speed indication. Since a larger tire has a larger
circumference, it has to travel farther to produce a revolution. The
same number of revolutions as before, but now the van is covering more
ground per revolution. Therefore, the actual speed will be higher than
the indicated speed. Does that help?
Larry