I'm guessing that that dyno was set-up for 1/4 mile runs, I've read that some can be programmed for that. That looked like about a flat 12 second car, sounded nice too.
ex vi termini. and yes their skyline maxes out dynos. They are making a roughly calculated 1400HP at all 4 wheels. car ran 8.2 last time i checked and they are regulated on the fuel they can use.
looks like a dyno dynamics or Mustang Dyno 1/4 mile run.