larger wheels and speedo accuracy

[Larry" <rocco16v@netzero.com (Larry)]

PB-
don't trust the math unless you are running about 100psi in your tires.
Time/distance check is the most accurate way to determine mph.

Larry

> the only true way to figure out if you are at correct speed with tires is
:
> stock size tires + gear ration and RPM
> example 85 MKII with 9A tranny, @ 4200 RPM = 80MPH, get on hwy with
> 15/205/50 and my spedo says that I am dead on, get on talkabout and
everyone
> states I am going anywhere from 75-90... heheh... I trust the math.. not
> anyone's display.


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