speedometer not accurate? spoil? or?

[Demon]

Originally posted by mystery rider@April 09, 2007 06:23 pm

Even wif a little diameter change will highly change ur highspeed...

As the speed goes higher the off set turn more then wat we can imagine...

Unless the over diameter maintain compare to the stock diameter...

When there is a change in rims, you can always find a tyre that will maintain below 1.5% difference in rolling circumference, it works out to be less than 2kph on a 17" rim. Yes, there will always be a difference, but it's negligible. Similarly overtime, there will be a change in the rolling circumference, as the rubber starts to wear.

 

For most cars, you can connect a meter to the OBDII interface when it reads off directly from the ECU. On the meter, you can input a correction to compensate for the difference in tyres' rolling circumference.

 

[LPMS]

Possible you using local meter. Heard that local & ori meter got difference le. So have to see which meter you using