rykoala -
This is what I did :
http://ecomodder.com/forum/showthrea...ires-2642.html
My thought process was to go to a larger diameter to make all my gears taller, but the merits of narrower tread has been discussed here as well :
(maybe not *that* narrow)
Your proposed new tire size will also be a little bigger than OEM :
Tire size calculator
Hrmmmmm, I wonder if Prius tires would fit on your Corolla.
CarloSW2