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Subject:Re: Speedometer and 15/65/205 Tires/Wheels
From:Loren Busch
Date:Mon, 12 Oct 2009 17:26:33 -0700
RE: Speedo Error
Assuming that the stock 185R14 is 805 rev/mile and using the tire calulator
at
http://www.miata.net/garage/tirecalc.html
(can't use it for stock tire, no entry) you should be about 2% off, not 10
mph.  BUT, according to list wisdom over the years, early model Vanagons can
be that far off.