How out are the standard clocks?
Thread Starter
Monte Geek
Joined: Jun 2003
Posts: 8,812
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From: Cheshunt, Herts
How out are the standard clocks?
Seem to remember someone saying 7% or something
IE a displayed 140mph on the cossie speedo is actually 130mph
Has anyone match this to there GPS?
IE a displayed 140mph on the cossie speedo is actually 130mph
Has anyone match this to there GPS?
PassionFord Post Whore!!
Joined: Sep 2003
Posts: 3,574
Likes: 0
From: essex
As a rule it is around 8%, i.e. a reading of 70 on speedo is 64.4mph
I was showing with standard wheels, 161mph on the speedo and 151mph on GPS, then on 19's it read 160 on the speedo and 160 on GPS
I was showing with standard wheels, 161mph on the speedo and 151mph on GPS, then on 19's it read 160 on the speedo and 160 on GPS
I'm Finding My Feet Here Now
Joined: May 2006
Posts: 139
Likes: 0
From: Kent
Originally Posted by cossymad
As a rule it is around 8%, i.e. a reading of 70 on speedo is 64.4mph
I was showing with standard wheels, 161mph on the speedo and 151mph on GPS, then on 19's it read 160 on the speedo and 160 on GPS
I was showing with standard wheels, 161mph on the speedo and 151mph on GPS, then on 19's it read 160 on the speedo and 160 on GPS
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