View Single Post
Old 12-21-2009, 11:16 PM   #62 (permalink)
gumpy
Enthusiast Member
 
gumpy's Avatar
 
Join Date: Oct 2009
Location: Sydney
Posts: 449
Drives: 09 370z white manual
Rep Power: 16
gumpy is on a distinguished road
Default

Quote:
Originally Posted by GTRFAN View Post
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
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 =)
gumpy is offline   Reply With Quote