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help with speed recalibration

 
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Croc



Joined: 27 Feb 2017
Posts: 1

PostPosted: Mon Feb 27, 2017 1:11 am    Post subject: help with speed recalibration Reply with quote

I have recently changed my diff in my vx commodore from 3.08 to 3.46 and now my speedo is out by 13%. I am sitting on 113km to do 100km so i need to lower the value somewhere but what do i change in the scalars. I am also running 18" wheels. and a v6 4 speed auto
the scalars i have and values are:
High RES speed input ppr engine/trans-auto : 43.691
low RES speed input ppk manual : 1474.159
High Res speed input ppk odometer - auto : 51319
vss ratio - speed constant for automatic transmission : 42.17
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