Three things to think about:

1) Most connecting rods fail on the exhaust stroke. The heavy piston flies upwards and there's no cushion of air (compression) to help slow it down. The crank pulls the rod down but the piston keeps going. It rips the rod in half and the piston slams the head.
With a turbo motor there's some back pressure in the exhaust stroke. The piston is pushing the air into the turbo and creates boost in the exhaust header. That boost helps slow the piston. It's not an impressive amount of force but it is there.

2) RPM = death. If you spin a motor faster to make more power you're going to have trouble. Spinning an engine at 7200 rpm makes internal stress 144% higher than spinning it at 6000 rpm. If you keep the engine speed moderate you can make more power using turbos with less stress.

3) Maybe this chart will help you understand internal engine pressures better. The turbo motor in this chart makes twice the power of the naturally aspirated motor BUT the peak pressure is only increased 20%.

Slow the engine down 1200 rpm and turbocharge it to make more power with less stress on the connecting rods as well as the rest of the engine.