[V8] Tire/rim size and Speedometer calibration

[Kneale Brownson]

Your PO may be correct that the car came with the 205 tires.  The owner
manual for my 200q20v (which generally had the same brakes and tires as the
V8) had the 215 size in the original printing and an inserted extra page
with the 205 size.  The 205/65 winter tire configuration is recommended by
most of the winter tire specialists to give a slightly taller sidewall and
more narrow footprint for better traction and negotiation of slush/deep
snow.  I run the "tippy-toes" 205/65 winter tire and a 215/60 summer tire.

At 12:45 AM 3/9/2004 -0500, Gunter wrote:
>Here's a question for owners of 'Canadian' spec V8 Q's.
>
>I only acquired mine 4-5 months ago.  The speedometer is metric, of course.  
>The previous owner claims that the car came factory equipped with 205/60-15 
>tire/wheel combos.  I am skeptical of his claim and thought that the 
>tire/wheel combo was 215/60-15 regardless of final destination.  In any 
>case, the car is presently wearing 205/65-15 winter tires and I am curious 
>as to whether or not I should be factoring in a small (or perhaps not so 
>small) adjustment, based on differences in overall wheel diameter, into the 
>speedometer reading to bring it in line with the actual road speed.  I have 
>already earned myself one speeding ticket with this car, and feel that I 
>should arm myself with whatever information is available in order to keep 
>within the legal limit...............at those times when I choose not to 
>exceed the limit.
>
>Thanks,
>Gunter, Cleveland
>1990 V8 Q Canadian Tornado red with 240 000kms
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