With my new 18-inch wheels on my S14, I am pretty sure that my speedo is going to be off because of the much taller overall diameter compared to my stock wheels. I really dont want to get booked for doing 50 over when I thought I was only doing 30.
Does anyone know of a calculation that I can do to figure out my actual speed or a way to remedy this?
FYI:
235/40/18 18x9
265/35/18 18x10