After a little research. It looks like that is the formula to get the gear you need to maintain the same rpm with new tire size.
Quote:
Originally Posted by danhr
I can already tell you, just by looking at that forumula and not testing it, that it is incorrect. Going to a taller tire has the reverse effect that you mentioned. So putting a TALLER tire on your car is like going to a lesser gear.
I tried flip flopping the old tire diameter and new tire diameter, and it is still not accurate.
|