12-21-2009, 10:16 PM
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#11 (permalink)
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Enthusiast Member
Join Date: Oct 2009
Location: Sydney
Posts: 449
Drives: 09 370z white manual
Rep Power: 17
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Quote:
Originally Posted by GTRFAN
When I say Nissan, I mean globally. So you are right about the 18" and 19" having the same issue, as all factory specs will produce a smaller circumference than what is required for a 100% accurate speed reading. We will either have to calculate a larger TOTAL circumference or get the speedo adjusted.
Then again, maybe this design by Nissan and all manufactures is to make us all reduce our speed? hmm
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I found that all the cars i've driven basically over estimate the speed, probably a safety thing...
Wheels magazine also show actual vs shown speed in some of their reviews. at 100kph most cars are doing 92-97kph from my observations. The problem is when you factor this in to your driving =)
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