2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Speedo reading

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Old Jul 23, 2006 | 03:02 PM
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90WhiteVrt's Avatar
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FC4ME
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Speedo reading

I recently put 195/60/15's on my car instead of the stock 205/60/15's. How will this effect my speedo gauge? Thanks
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Old Jul 23, 2006 | 03:25 PM
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Itll read slightly higher, i think. This'll tell you exactly: http://www.miata.net/garage/tirecalc.html
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Old Jul 23, 2006 | 06:41 PM
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It should read about the same. Maybe 1-2mph difference.

Last edited by DragonRx7; Jul 23, 2006 at 06:43 PM.
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Old Jul 23, 2006 | 07:09 PM
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isn't the first number the width of the tire? then it shouldnt make a bit of difference on the speedo at all.......
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Old Jul 23, 2006 | 07:33 PM
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It shouldn't but the calculator say different. So, I guess it could be negligible and either way I'd say it's minute enough to ignore it.
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