engine stress caused by wheel size? Options

[Razgriz]

First note that I looked around but didn't happen to see anything that mentioned this (pardon me if I missed it.)

Ok guys, Im looking into buying some new rims for my car, and I love the way 18's look on the celica. I know that physically they fit on the car no problem, but also i'm planning to put in the silvertop 4age. Now i know the 1.6 4age technically has more torque than the 1.8 7afe, but at a much higher range in the rpm band. Because of this would i be putting any unnecessary stress on the motor during stop and go traffic due to the wheel size?

Basically are 18's to big for a 1.6L? Or am I worrying over nothing?

Thanks ahead of time guys!

[Razgriz]

I've already considered brakes and suspension but thanks for bringing it up. i realize its more stress on everything, but is it too much for the motor you think? would 17's be more appropriate?

Thanks