I originally had my supercharger installed in the middle of summer and literally the day after my supercharger was installed I took it over to the dyno. It was hot, humid and numbers were a little lower than I expected.
Today I did another dyno to compare...same fuel, no different mods, same dyno...only thing different is less humid and 15 degrees cooler. Keep in mind both these graphs are in SAE so WinPep automatically calibrates for SAE to keep the numbers realistic based on temp/humidity conditions so we can cancel those factors out. 6000km on the truck with the supercharger is the main difference.
Results: Pretty much made another 20hp & 20tq throughout the majority of the powerband. I noticed this power increase about 2000km after the initial install...all of a sudden it started to wake up a bit more.