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Subject:Re: Tires
From:Stan Wilder
Date:Thu, 17 Apr 2003 15:36:10 -0500

Actually I've made every effort to keep my Westy Pure Stock. (hubcaps
excepted)
No FuFu wheels, no holes not put there in manufacturing.
And YadaYada you know!
I'm sure there are 15/16 and possibly 17" wheels that when fitted with
the right tires will give the same rolling distance per tire revolution.
I just question; Why waste that money to have the same thing.
Sure you might save 30$ a tire but with the wheel conversion, lug nuts
etc. You'd have to but 5 sets of tires at substantially less than quality
C or D rated 14" to justify it.
The only thing that makes a Westy a Westy is that it is what it is. An
800$ set of wheels isn't going to change the overall box of lead Westy.
For those of you with chrome spark coil covers I just say "good going"
that helps a lot.

Stan Wilder

On Thu, 17 Apr 2003 13:06:35 -0700 pensioner <al_knoll@PACBELL.NET>
writes:
> Stanster...do the mustard test with the old tires and then the new
> tires.
> Gets you an accurate measure of the true rolling radius.  Since the
> torque
> applied through the moment arm of the rolling radius is the force at
> the
> tire to ground interface you can make an easy calculation, even in
> Texas,
> even without a cat, that will get the relative difference.
>
> EG:  if the original rr is 13" and the new rr is 14" then the
> difference is
> 14/13 reduction in tractive force.
>
> If you had 50lbs-ft at the axle you would have
> 50/((12/13)*(13/14))lbs of
> force with the new size.
>
> No cats were used in the garnering the data above, even in texas.
>
> p
>
>

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