| Stock | Slip-ons + carb tweak | |||
|---|---|---|---|---|
| RPM | Power | Torque | Power | Torque |
| 2250 | 21.6 | 50.4 | 21.5 | 50.5 |
| 2500 | 28.0 | 58.8 | 27.9 | 58.3 |
| 2750 | 29.8 | 56.8 | 33.7 | 64.4 |
| 3000 | 31.2 | 54.6 | 36.6 | 64.3 |
| 3250 | 34.6 | 55.9 | 39.6 | 64.1 |
| 3500 | 40.1 | 60.2 | 43.6 | 66.4 |
| 3750 | 45.6 | 63.8 | 48.5 | 68.0 |
| 4000 | 51.3 | 67.3 | 54.2 | 71.1 |
| 4250 | 56.0 | 69.2 | 58.8 | 72.7 |
| 4500 | 59.0 | 68.8 | 62.8 | 73.2 |
| 4750 | 62.0 | 68.6 | 65.2 | 72.1 |
| 5000 | 69.4 | 72.9 | 74.1 | 77.9 |
| 5250 | 73.8 | 73.8 | 79.4 | 79.4 |
| 5500 | 77.4 | 73.9 | 83.7 | 79.9 |
| 5750 | 79.1 | 72.2 | 86.3 | 78.8 |
| 6000 | 84.9 | 74.4 | 90.9 | 79.6 |
| 6250 | 91.4 | 76.8 | 96.1 | 80.7 |
| 6500 | 97.5 | 78.8 | 102.9 | 83.2 |
| 6750 | 102.0 | 79.4 | 108.1 | 84.1 |
| 7000 | 103.4 | 77.6 | 109.6 | 82.2 |
| 7250 | 106.3 | 77.0 | 112.1 | 81.9 |
| 7500 | 109.1 | 76.4 | 117.5 | 82.3 |
| 7750 | 115.7 | 78.4 | 122.9 | 83.9 |
| 8000 | 121.2 | 79.6 | 129.3 | 85.6 |
| 8250 | 124.4 | 79.2 | 132.4 | 84.3 |
| 8500 | 125.3 | 77.4 | 134.0 | 82.8 |
| 8750 | 128.4 | 77.1 | 135.1 | 81.1 |
| 9000 | 129.0 | 75.3 | 136.6 | 79.7 |
| 9250 | 130.6 | 74.2 | 138.6 | 78.7 |
| 9500 | 131.2 | 72.5 | 138.8 | 76.5 |
| 9750 | 133.1 | 70.7 | 140.9 | 75.7 |
| 10000 | 129.4 | 68.0 | 138.8 | 72.9 |
| 10250 | 129.3 | 66.3 | 135.2 | 69.3 |
| 10500 | 125.4 | 62.7 | 133.0 | 66.9 |
| 10750 | 120.8 | 59.0 | 129.8 | 63.4 |
Dale also tested slightly larger #42 pilot jets as well as many other settings. We were able to squeeze out about to 2 to 3 more hp from the ZZR with the larger pilot jets installed and made the best pull off 143.9 hp. But Dales road testing showed a drop in fuel mileage, about 37 to 38 mpg on the freeway at steady cruise. Also the idle is smoother with the stock pilot jets as well. For only 2 hp or so Dale decided to only recommend shimming the needles and re-adjust the fuel screws. The ZZR runs butter smooth with this simple adjustment and is plenty fast. But if you don't mind the above and your a power junky you may want to try the #42 pilots jets also.
These are true numbers measured on Dales in-house Dynojet 150 Dynamometer with the "Win Pep" program and then reformated for the web.
The Holeshot compound is about 200 feet above sea level and the dyno room stays at a constant temperature between 70-80° F. These results were also achieved with Dales tuning, which is a bonus. Dale uses his dyno as a measuring tool for development and testing only.
Be aware, that dynos, dyno operators, conditions and bikes can vary 3-8 hp, so this should only be used as a reference for before and after results.
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