Correcting speedometer error in wheel changes!
#11
To bad the OP can't just find some 18" wheels he likes so he could get his more cushy sidewall height, without the hassle of trying to fix the speedo.
#15
Wonder what happened after 2010, cause Hypertech, Ford Racing, and others made various speedometer recalibration tools, but none are listed to work after 2010 model year.
To bad the OP can't just find some 18" wheels he likes so he could get his more cushy sidewall height, without the hassle of trying to fix the speedo.
To bad the OP can't just find some 18" wheels he likes so he could get his more cushy sidewall height, without the hassle of trying to fix the speedo.
#16
Wheel size has nothing to do with it, tire height (diameter) does. You can have an 18" rim and a 20" rim with an overall tire height equal to each other and you would see no difference in your speedo.
If you do get a tire with a different height then yes, a simple adjustment via a handheld tuner is what is needed.
Here's SCT's instructions for example: http://www.sctflash.com/PDF/64Options.pdf
Your dealer is probably strictly by the book so they won't even mention an aftermarket device like the SCT tuner to access the ECM for the adjustment.
If you do get a tire with a different height then yes, a simple adjustment via a handheld tuner is what is needed.
Here's SCT's instructions for example: http://www.sctflash.com/PDF/64Options.pdf
Your dealer is probably strictly by the book so they won't even mention an aftermarket device like the SCT tuner to access the ECM for the adjustment.
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zanemoseley
2005-2014 Mustangs
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09-06-2015 12:58 PM