[Shotimes] tire sizes

[James F. Ryan III]

>I would think ford recalibrated (sp) the speedo after
>putting larger wheels on it.


89-90:

215/65-15
  26.00" diameter
  81.7" circumference
  77,552 revolutions/mile


91-95:

215/60-16
  26.16" diameter
  82.2" circumference
  77,080 revolutions/mile


0.16" difference in diameter is negligible.  I'm sure there's that much
variation (and more) among manufacturers .  A GoodYear 215/60-16 is prolly a
different diameter (and width) than a Michelin of the same size.


James F. Ryan III



>-----Original Message-----
>From: shotimes-admin@autox.team.net
>[mailto:shotimes-admin@autox.team.net]On Behalf Of Shylo McKinsey
>Sent: Thursday, February 19, 2004 3:22 PM
>To: bjshov8@comcast.net; TaurusSHO
>Subject: Re: [Shotimes] tire sizes
>
>
>I would think ford recalibrated (sp) the speedo after
>putting larger wheels on it.
>
>Shylo McKinsey
>
>'91 White MTX
>
>--- bjshov8@comcast.net wrote:
>> Theoretically you will be going 3 mph slower with
>> the speedo indicating 60 mph, but different
>> manufacturers specs will vary slightly.
>>
>> BTW, I didn't think 215-60 was a stock size, or
>> maybe that's just because I drove a 90 with 15"
>> wheels.
>> > can anyone tell me how far off my speedometer will
>> be if i go from the stock
>> > 215-60-16's to a 225-50-16?i'm figuring about 5
>> mph at 60 mph.i know there is
>> > a formula,but i can't find it anywhere.thanks in
>> advance,BOB FISHER
>> _______________________________________________
>> Shotimes mailing list
>> Shotimes@autox.team.net
>> http://www.team.net/mailman/listinfo/shotimes
>
>
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