Not in the HP & torque curves, in the max #s attained with each tune.

However, the spike and rapid leveling off of both curves on the nitrous-only run shows just when the solenoid was initiated. An immediate increase in boost and thus power, directly followed by both curves faltering as too much heat was being removed from the combustion chamber, lowering peak cylinder temperature and pressure. The fuel spraying against the HOT pistons helps to atomize it as well as ignite it.

If you're spraying the nitrous directly into the intake manifold, weld a bung for the jet on the pre-intercooler metal intake duct and you'll get the oxidizing benefit of the oxygen and the buffering effect of the nitrogen w/o the (in this case) undesirable excessive cooling effect of the NO2.

Of course, this is conjecture on my part since I have no idea how you've bombed your engine.

 

Thoes are great 1/4 mile numbers for the HP showen on the dyno sheet.

 

Awesome numbers for a truck with stock injectors, and turbo... Thats kinda what im workin towards, except I have less airflow than you. Id like to run 13's on a stock turbo and injector'd 12 valve.

Eric