| All shifts at 6100RPM | (C) 1999 Andi Baritchi | ||||
| final drive: 3.82 | All shifts at 6100RPM; Redline is 6550RPM | Dyno Numbers are from my 97 Maxima SE 5-speed with stock drivetrain | |||
| Ratio | MPH/KRPM | MPH at 6100RPM | nextgear RPM | Tq@shift | Tq-aftr-shift |
| 3.29 | 5.7 | 34.77 | 3400 | 406.644 | 322.64 |
| 1.85 | 10.2 | 62.22 | 4200 | 228.66 | 214.122 |
| 1.27 | 14.9 | 90.89 | 4600 | 156.972 | 161.5 |
| 0.95 | 19.9 | 121.39 | 5100 | 117.42 | 131.58 |
| 0.8 | 23.6 | 143.96 | |||
| Above, I have calculated torque immediately after the transimssion gears before & after each 6100RPM shift. My dyno chart only has data upto 6100RPM; as you can see, 6100RPM for the 1-2 and 2-3 shifts is too low since torque still drops off. (6100RPM seems pretty close for the 2-3 shift so 6300RPM [64mph] would be my guess as the optimal 2-3 shift point). However, for the 3-4 and 4-5 shifts, 6100RPM is not too low. For the 1-2 shift, I'd guess the 6550RPM redline or pretty close.. | |||||
| Below, I have calculated torque after the transmission gear for a variety of shift points upto 6100RPM, and have shown the optimal shift points for the 3-4 and 4-5 shifts. | |||||
| 3rd tq | 3rd rpm | mph | 4th rpm | 4th tq | |
| 178.562 | 5800 | 86.42 | 4300 | 158.27 | |
| 171.958 | 5900 | 87.91 | 4400 | 160.93 | |
| 164.973 | 6000 | 89.4 | 4500 | 160.93 | |
| 156.972 | 6100 | 90.89 | 4600 | 161.5 | |
| optimal 3-4 shift point = 6100RPM = 91MPH | |||||
| 4th tq | 4th rpm | mph | 5th rpm | 5th tq | |
| 142.025 | 5500 | 109.45 | 4600 | 136 | |
| 138.985 | 5600 | 111.44 | 4700 | 136 | |
| 136.325 | 5700 | 113.43 | 4800 | 135.2 | |
| 133.57 | 5800 | 115.42 | 4900 | 135.76 | |
| 128.53 | 5900 | 117.41 | 5000 | 134.16 | |
| 123.405 | 6000 | 119.4 | 5100 | 131.68 | |
| 117.42 | 6100 | 121.39 | 5100 | 131.68 | |
| optimal 4-5 shift point = 5800RPM = 115MPH | |||||