Instead of berating others you could've posted a link instead...
@Topic:
Some general info on how to set up your wheel: click .
The recommended settings for the Logitech Profiler: click
You can of course change the "Degrees of Rotation" to your liking, but you should leave the rest to get optimal force feedback like LFS intended it. If the forces around center seem too light, try setting the "Overall effects strength" to 105%, which removes a bit of the driver built in non-linearity. The real overall FF strength adjustment should be made ingame, with the < and > keys (or in the options under the "Controls" section).