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SVT Shelby GT500
just installed 315/35/20 tires. Is the speedo off or not?
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<blockquote data-quote="Poppacapp" data-source="post: 12794072" data-attributes="member: 140837"><p>If your gps reading and speedo reading are right at each other, dont worry about it. I gained I believe a half inch or so in tire height going from my 295 Goodyears to the 305 Nitto 555rs.. I saw no appreciable difference between gps and speedo reading.. not enough to adjust in the tuner anyway. </p><p></p><p>The tuner adjustment is done with revolutions per mile I believe... you just have to pick the number that makes your speedo match gps.. trial and error.</p></blockquote><p></p>
[QUOTE="Poppacapp, post: 12794072, member: 140837"] If your gps reading and speedo reading are right at each other, dont worry about it. I gained I believe a half inch or so in tire height going from my 295 Goodyears to the 305 Nitto 555rs.. I saw no appreciable difference between gps and speedo reading.. not enough to adjust in the tuner anyway. The tuner adjustment is done with revolutions per mile I believe... you just have to pick the number that makes your speedo match gps.. trial and error. [/QUOTE]
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SVT Shelby GT500
just installed 315/35/20 tires. Is the speedo off or not?
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