Doesn't look like it should produce 280 hp, does it? Check out the torque numbers on the dyno chart.
Spinning (Literally) Up The Dyno
Some notes on the dyno numbers. First, the baseline pull was made with PHP's V-6 airbox, A/C bypass belt, alternator, underdrive pulley, and tune, along with JBA short-tube headers and dual exhaust kit. Those were the powertrain mods that permitted the coupe to run 13.9s prior to the nitrous. Second, the reason for the fairly narrow rpm window charted is that as Paul engaged the nitrous at about 2,800 rpm, the V-6 instantly spun its tires on the rollers-despite being firmly strapped down-and didn't settle down until about 4,100 revs. This stuff hits hard. We were using the 75hp jets and ended up with almost exactly that amount of peak horsepower gain. In typical nitrous form, however, the torque gain was monumental.
| RPM | Baseline | Zex Nitrous | Difference |
| Power | Torque | Power | Torque | Power | Torque |
| 4,100 | 182.5 | 233.7 | 279.3 | 357.7 | 94.7 | 112.9 |
| 4,200 | 186.1 | 232.7 | 277.2 | 346.6 | 88.4 | 102.6 |
| 4,300 | 189.6 | 231.6 | 274.5 | 335.3 | 81.7 | 92.2 |
| 4,400 | 192.9 | 230.2 | 271.3 | 323.8 | 75.2 | 82.7 |
| 4,500 | 196.1 | 228.8 | 268.1 | 312.9 | 71.2 | 76.4 |
| 4,600 | 198.7 | 226.9 | 267.3 | 305.2 | 68.2 | 71.4 |
| 4,700 | 201.2 | 224.8 | 266.9 | 298.3 | 65.3 | 66.8 |
| 4,800 | 203.0 | 222.1 | 266.5 | 291.6 | 62.4 | 62.3 |
| 4,900 | 204.3 | 219.0 | 265.4 | 284.4 | 59.5 | 58.1 |
| 5,000 | 205.4 | 215.7 | 263.8 | 277.1 | 58.4 | 61.4 |
| 5,100 | 205.9 | 212.0 | 262.8 | 270.6 | 56.9 | 58.6 |
| 5,200 | 205.9 | 207.9 | 261.7 | 264.3 | 55.8 | 56.4 |
| 5,300 | 205.5 | 203.6 | 259.6 | 257.2 | 54.1 | 53.6 |
| 5,400 | 204.2 | 198.6 | 257.1 | 250.1 | 52.9 | 51.5 |
| 5,500 | 203.2 | 194.0 | 254.1 | 242.7 | 50.9 | 48.7 |
| 5,600 | 200.7 | 188.3 | 250.9 | 235.3 | 50.2 | 47.0 |
| 5,700 | 198.5 | 182.9 | 248.0 | 228.5 | 49.5 | 45.6 |
| 5,800 | 195.1 | 176.7 | 243.8 | 220.8 | 48.7 | 44.1 |
| 5,900 | 192.2 | 171.1 | 238.4 | 212.2 | 46.2 | 41.1 |
| 6,000 | 188.1 | 164.6 | 235.9 | 206.5 | 47.8 | 41.9 |