Please be detailed<everywhere ive read is a little here a little there on the subject.
I would like to feel like Im not missing something...Anyone?

What exactly are you asking?

What does a turbo do?

It compresses air before it gets to your engine so that the engine is force fed more air making more power because of the extra fuel you need to supply the engine with.

A turbo has four holes and a wheel. One set of holes is for new air in and out. and one set is for old air or what actually turns the wheel (compressor)

The turbo is attached to the header (exhaust manifold) the compressor spins from the exhaust gases that are leaving the engine.

the compressor then compresses the air coming in from the intake and shoots it out through piping to an intercooler to the throttle body.

Picture to follow.

O.k. and also are bigger injectors neccessary? or is removing the valve cover or head neccessary?Lets say your stk hp is 170 and you want to achieve 225-260hp?A guy could possibly do the turbo route and bring more fuel in a different way?
I know how a diesel(semi) turbo sits and works and I know they are similar,but how do you do a turbo set up on a n/a vehicle? I guess is the question.

bigger injectors aren't always necessary. if the car was turbocharged to begin with and a bigger, but not too big, turbo is put on sometimes you can get away with it.

I always like to add a high flow pump, aftermarket fuel pressure regulator (FPR), and bigger injectors.

no need to remove the head or valve cover. Adding a turbo also depends on the engine. if its non turbo to begin with adding a turbo can destroy it. if its a turbo charged engine from factory you are ok going from 170-225or260 with stock internals.