4.08 gear swap

Originally Posted by Optimiser Except 370Z's are out by about 10Kmh at 100Kmh. My speedo reads 100Kmh when I'm going about 90Kmh. That's 10% (6.2mph) either you have put very

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4.08 gear swap

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01-01-2017, 09:25 PM

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jchammond

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Quote:

Originally Posted by Optimiser

Except 370Z's are out by about 10Kmh at 100Kmh. My speedo reads 100Kmh when I'm going about 90Kmh.

That's 10% (6.2mph) either you have put very short tires on your ~Z~ or something else is going on....mine is near perfect with new rear tires (26.8,26.9") but as they wear down,you can get 1 to 1.5mph slower than readings of speedo....only 1-2%.
You may want to have something looked at/as i haven't heard of one being that far off.

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