Cummins12V98 wrote:
The Cummins puts a BIG percentage of advertised HP to the ground.
I was in LasVegas recently, a 2018 2500 370HP advertised did 352 on the Dyno. So the number of 392 out of 400HP advertised does not surprise me.
That has not always been my experience. Most have been 40-60 hp less. Heck, Lavon even stated at 3:42 of the video that his stock 2016 advertised at 385 hp put down 342 hp on that very same dyno. That is about an 11% decrease which is right inline with the 10-15% decrease that most vehicles have. Most other 370-385 stock horsepower Cummins have always been around 330-345 hp at the wheels from what I have seen.
With a 10-15% decrease and putting 392 hp to the wheels, that truck should be making between 435-460 hp at the flywheel. So either Cummins/Ram is purposely sand bagging or his dyno is out of whack. Given that his 2016 power numbers were in line with most other Cummins I have seen, my guess is leaning towards Cummins/Ram sandbagging.
