Question: Recalibrate speedo for bigger tires

okierzr

New member
Dec 10, 2008
106
0
0
eastern oklahoma
Can someone help me get my speedo right i went from 215/85/16 to 235/85/16 and i dont know how to do this with efilive.I asked over at dp and got a answer but i like to have more than one answer im kind of anal,at least my wife says so.:D
 

MMLMM

Tunergeek
Mar 2, 2008
4,086
2
38
43
Reno, NV
www.dyncal.com
Change H0101 (make sure you are in Imperial units) to 94838

If you actually measure the tire height, I can get you even closer, but that should be pretty darn close.

I am going to guess that H0101 currently has 99016 in it?
 

okierzr

New member
Dec 10, 2008
106
0
0
eastern oklahoma
This is what the person said at dp. H0101, I reccomend finding out what your actual speed is and then use the speedo calculator and go under speedo fine tuning. Put in your displayed and then actual and you will be almost dead on with this method. I've found the one that you put the tire size in to to be pretty inaccurate.