Alot depends on the ride height in our 240's, I run 235/60-14's and had some rubbing issues that required me to add stiffer springs and stay at the stock ride height.
A 225 or 235 tire has a big contact patch compared to a 205 which is good for handeling, but creats more drag whigh is bad for top end and hurts fuel economy.
The series of the tire 50, 60, 70 and so on, reflects the sidewall height in ratio to the width of the tire, the lower the number the shorter the side wall. The shorter the sidewall the better it handels in corners, the taller the side wall the better the ride.
With a smaller rim, I get more sidewall, a 60 series, which helps with the stiff springs, it handels really well in corners, but it is strictly a street car. You are going to have a 15 or 16 inch rim, so you will end up with a 50 or even 40 series which will give you really short sidewalls and your car will have a harder ride, but corner better.
Also the 225 will be harder (stiffer) at the steering wheel, much more so at low or no speed, due to those big contact patches, unless you go with power steering.