Explain turbo boost
 

Just finally got truck running pretty good. Here's what I've done to date.New IP,LP,OPS relocate new PMD, new suction line to sending unit, new fuel filter and housing grounds are good,disconnected EGR as it was coding,have replaced vacuum control for EGR but didn't seem to help it. Truck starts a little hard after been running cold starts are good if block heater is used. I'm not getting the power I think I should be getting. I had a friend set timing and not sure what its set at. Can get that figured out just need scan tool. Big question is how do I know if turbo is functioning properly and please explain boost.

You would do well to install a boost and pre turbo EGT gauges.

A boost gauge will show you how much the incomming air is being compressed by the turbo and when it does so.

Boost is load dependant so under normal cruising you will see little to no added boost,but under heavy load or hard accelleration boost should shoot up to 10-12 psi and maintain that as long as the ECM requires it if you still have computer controlled wastegate operation.

With a turbiomaster,boost will be a different animal how it reacts to the engine.

Boost is simply put the compression of the incomming air charge by the turbo to make more oxygen available tpo the fuel in the cylinder to burn hotter and more completely to provide more power.

There can be too much of a good thing when it comes to boost,higher than stock boost threatens the engine in many ways.

There is a side effect of boost in that the act of compressing the air heats it up,the friction of the molecules slamming into each other makes heat-higher pressure makes more heat and the heat causes expansion that in turn lessens the oxygen density.

roger that
 

thanks racer 55 will do. I'm not convinced that's the challenge, could be timing? The engine has good power takes right off to about 40 mph but after that it is sluggish it seems to just creep.

You will need a scan tool that can display TDCO-thats the timing parameter.

If a snap on mt2500 is used enter the year as 2000 no matter what year the truck is-it's the only way to get valid values.

A better scan tool that can display 2 positions right of thedecimal point would be better.

Google KOKO relearn.

Or buy Auto Enginuity and a cable or Carcode and cable,both a laptop based programs that allow DIY and can initiate the relearn procedure.

Another thing to be aware of,your trans needs to work well because the stock turbo lays down like a lazy dog above 2400rpm.
If you have a standard shift gears before that threshold or it will be lazy and create very high EGT's that can melt things down.