It seems that my truck has more power and better get up and go at half the normal running temp.

 

now that is odd, most of the time you will have less power when it is warming up. i would be interested in that answer as well.

 

The truck has a much stronger pull and a lot more responsive. I was thinking maybe a dirty back pressure valve or maybe a week wastegate issue. Ford could not give me a reason.

 

I've noticed this on other vehicles that I've driven over the years.
It is very pronounced on big iron gas engines at 1/4 throttle.
My theory is that the intake plenums are still cold enough to not give much heat to the intake air and it's entering the engine a lot cooler.
Cooler air is much more dense than hot air and the air mass in the cylinder is much higher resulting in a much stronger push on the piston during the power stroke of the 4 cycle engine. That's where the extra power is coming from.

 

do these things have advances??

 

According to one theory , the injector timing is advanced based on oil temp . ( i.e cold oil ,advance in timing ) oil reachs operating temps and it backs off the timing . There is a mod for putting a 4.1k resistor in series with the oil temp sensor just behind the hpop to trick it into thinking the oil is colder than it is . Is this just BS? The mod on this site near the bottom .

http://pages.prodigy.net/stevebaz/_i...az/index3.html

 

well i know my idi when the advance was on it defintally had more power.. when cold like when it came to climbings hills and stuff defintally did better when the advance was on tahts why i was asking

 

Sounds almost like you have a biased sensor to me. The system should be optimized and when it is not, you get what you describe. No other way to explain it because the tuning works off of the sensors and tunes. Can you log the data?