speedo 8-10mph off

have a cable vss and it reads 8-10mph faster off
went from stock 195/60/14 to 195/60/15
is there a way to recalibrate it or change the speedo gear
thx

[QUOTE=91b20teg;2164146]have a cable vss and it reads 8-10mph faster off
went from stock 195/60/14 to 195/60/15
is there a way to recalibrate it or change the speedo gear
thx[/QUOTE]

you need a smaller sidewall tire, 195/50/15 should work

e: a 205/60 may be a closer match actually if your wheels are wide enough

equivalent to 195/60/14 is usually 195/55/15, which is stock size for 15’s, weird though usually if you go from 60/14 to 60/15 the speedometer would read slower than you’re moving cause of a larger rotation…

the 55 series tire is getting harder and harder to find, unless youre running economy tires.

im running on ls specials would the 205/60 work with them or should i just go for the small side wall

http://www.miata.net/garage/tirecalc.htm

there is a tire size calculator that i’ve found and been using for a while