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Subject:Re: "True" speed with BFG 27 x 8.5 tires
From:Per Lindgren
Date:Sat, 6 May 2000 00:27:46 +0200

I have passed on of these twice, first time I was traveling 70 km/h, it
showed 59. The second time I did 80, it showed 69. I was so concerned
keeping accurate speed, I was hardly looking at the road. THe Syncro
runs 185R14 tires, which clearly are too small for the speedo.

PerL
87 Syncro 112i

BRENT CHRISTENSEN wrote:

>
>
> I have always wondered about the accuracy of the Vanagon speedo
> regardless of tires, so when I passed one of those portable radar
> wagons that the police use to display your speed (as a warning) I had
> to turn around and drive past it a few times.
>
> I ran past it 4 or 5 times at speeds of between 25 and 45 mph, with no
> other cars aroun d.  In each case, my indicated speed on the radar
> wagon display matched my speedo within 1 mph or so.  I am running the
> 27" BFG tires, so I was surprised by this.
>
> Anyone have any hard or anecdotal data that refutes this finding?
> Anyone have any comments on the accuracy of the police radar?  (I
> assume that with such a large frontal area the Vanagon produces a
> pretty clear radar image)
>
> Brent Christensen
> '89 GL Syncro Westy
> Santa Barbara, CA