[simpleisbest]

Originally Posted by Robbie

https://m.facebook.com/notes/hollis-...5008598916447/

There's a link giving you a good sizing guide from Andy Hollis; the man who does most of the grassroots tire tests and a multiple time national champion in many different classes.

Most of that testing was done on an ST Civic, correct? If we are talking about whether or to over-tire is faster in STREET (ex-Stock) Class, then yeah its overall faster once you make it work. For strut cars with limited camber, I would recommend using a tire with a stiffer side wall.

If you are able to stretch or fully square up the tire and get more camber with the allowances in STX for example, then a narrower tire could be faster depending on brand/model and suspension set up.