Okay, I am a little skeptical. Sorry, but seeing as I have a Paxton and have witnessed it in the dyno I believe I have some basis.
Most Paxton cars I have observed dynoed around 650 RWHP at close to redline. Now this car boasts 751 RWHP at 5750 rpm??? How?
Now I know of an SRT engine that ran on an engine dyno with a Paxton. Running a city water cooled intercooler and near MBT timing it only ran 700 hp (crankshaft). With 8.5 psi maxiumum (there was no indication of a ratio change) the theoretical increase in power for a stock engine is about 58% (this assumes a zero power loss supercharger). That would net about 800 crankshaft horsepower. The supercharger itself really draws about 60-70 crankshaft horsepower. That nets 730-740 crankshaft horsepower. The reality is that at that level of performance some spark retard and added fuel is needed to keep the engine safe. that is what reduces it down to about 700 hp at the crankshaft. That is in line with both chassis dyno results and the engine dyno result. Both with dynos certified.
So how does this magically create 750 at the wheels? I am dumbfounded. Not a naysayer per se, but in this instance think of me as being from Missouri (I did live in Kansas for 4 years so I was close!).