To my rememberance back in 2001 Jeff Mischel created a table of RPM to Transmission Ratio spreadsheet that he shared with the greater Z car enthusiast community on Pete Springer’s long gone GeoCities site.
Today I dug up a stylized HTML conversion experiment of the an old Excel file I had in my archives and thought it could be of some use to some Z car owner out their, so I’ve published it as is at this LINK. If good sense and some free time eventually arrive at my doorstep, I hope to redo the crazy color styles into some sane form, but for now, this is all you get.
Note: If anyone knows how to contact Jeff Mischel these days please pass it on to me at eric@zparts.com
Eric Neyerlin – owner of ZPARTS.COM
| 240Z | ||||||||
| Tranny Gear | Engine RPM | Tire Diameter (In.) | Tranny Gear Ratio | Final Gear Ratio | Overall Ratio | MPH | Peak Torque (ft-lbs) | Torque at Rear Wheels (ft-lbs) |
| 1st | 6000 | 23.865 | 3.549 | 3.360 | 11.92 | 35.7 | 166.0 | 1968.36 |
| 1st | 6000 | 23.865 | 3.549 | 3.545 | 12.58 | 33.9 | 166.0 | 2076.73 |
| 1st | 6000 | 23.865 | 3.549 | 3.900 | 13.84 | 30.8 | 166.0 | 2284.70 |
| 1st | 6000 | 23.865 | 3.549 | 4.110 | 14.59 | 29.2 | 166.0 | 2407.72 |
| 2nd | 6000 | 23.865 | 2.197 | 3.360 | 7.38 | 57.7 | 166.0 | 1218.51 |
| 2nd | 6000 | 23.865 | 2.197 | 3.545 | 7.79 | 54.7 | 166.0 | 1285.60 |
| 2nd | 6000 | 23.865 | 2.197 | 3.900 | 8.57 | 49.7 | 166.0 | 1414.34 |
| 2nd | 6000 | 23.865 | 2.197 | 4.110 | 9.03 | 47.2 | 166.0 | 1490.49 |
| 3rd | 6000 | 23.865 | 1.420 | 3.360 | 4.77 | 89.3 | 166.0 | 787.56 |
| 3rd | 6000 | 23.865 | 1.420 | 3.545 | 5.03 | 84.7 | 166.0 | 830.93 |
| 3rd | 6000 | 23.865 | 1.420 | 3.900 | 5.54 | 77.0 | 166.0 | 914.14 |
| 3rd | 6000 | 23.865 | 1.420 | 4.110 | 5.84 | 73.0 | 166.0 | 963.36 |
| 4th | 6000 | 23.865 | 1.000 | 3.360 | 3.36 | 126.8 | 166.0 | 554.62 |
| 4th | 6000 | 23.865 | 1.000 | 3.545 | 3.55 | 120.2 | 166.0 | 585.16 |
| 4th | 6000 | 23.865 | 1.000 | 3.900 | 3.90 | 109.3 | 166.0 | 643.76 |
| 4th | 6000 | 23.865 | 1.000 | 4.110 | 4.11 | 103.7 | 166.0 | 678.42 |
| 260Z | ||||||||
| Tranny Gear | Engine RPM | Tire Diameter (In.) | Tranny Gear Ratio | Final Gear Ratio | Overall Ratio | MPH | Peak Torque (ft-lbs) | Torque at Rear Wheels (ft-lbs) |
| 1st | 6000 | 23.865 | 3.592 | 3.360 | 12.07 | 35.3 | 166.0 | 1992.20 |
| 1st | 6000 | 23.865 | 3.592 | 3.545 | 12.73 | 33.5 | 166.0 | 2101.89 |
| 1st | 6000 | 23.865 | 3.592 | 3.900 | 14.01 | 30.4 | 166.0 | 2312.38 |
| 1st | 6000 | 23.865 | 3.592 | 4.110 | 14.76 | 28.9 | 166.0 | 2436.89 |
| 2nd | 6000 | 23.865 | 2.246 | 3.360 | 7.55 | 56.5 | 166.0 | 1245.68 |
| 2nd | 6000 | 23.865 | 2.246 | 3.545 | 7.96 | 53.5 | 166.0 | 1314.27 |
| 2nd | 6000 | 23.865 | 2.246 | 3.900 | 8.76 | 48.7 | 166.0 | 1445.88 |
| 2nd | 6000 | 23.865 | 2.246 | 4.110 | 9.23 | 46.2 | 166.0 | 1523.74 |
| 3rd | 6000 | 23.865 | 1.415 | 3.360 | 4.75 | 89.6 | 166.0 | 784.79 |
| 3rd | 6000 | 23.865 | 1.415 | 3.545 | 5.02 | 85.0 | 166.0 | 828.00 |
| 3rd | 6000 | 23.865 | 1.415 | 3.900 | 5.52 | 77.2 | 166.0 | 910.92 |
| 3rd | 6000 | 23.865 | 1.415 | 4.110 | 5.82 | 73.3 | 166.0 | 959.97 |
| 4th | 6000 | 23.865 | 1.000 | 3.360 | 3.36 | 126.8 | 166.0 | 554.62 |
| 4th | 6000 | 23.865 | 1.000 | 3.545 | 3.55 | 120.2 | 166.0 | 585.16 |
| 4th | 6000 | 23.865 | 1.000 | 3.900 | 3.90 | 109.3 | 166.0 | 643.76 |
| 4th | 6000 | 23.865 | 1.000 | 4.110 | 4.11 | 103.7 | 166.0 | 678.42 |
| Early 280Z- ZX 5-speed | ||||||||
| Tranny Gear | Engine RPM | Tire Diameter (In.) | Tranny Gear Ratio | Final Gear Ratio | Overall Ratio | MPH | Peak Torque (ft-lbs) | Torque at Rear Wheels (ft-lbs) |
| 1st | 6000 | 23.865 | 3.321 | 3.360 | 11.16 | 38.2 | 166.0 | 1841.90 |
| 1st | 6000 | 23.865 | 3.321 | 3.545 | 11.77 | 36.2 | 166.0 | 1943.32 |
| 1st | 6000 | 23.865 | 3.321 | 3.900 | 12.95 | 32.9 | 166.0 | 2137.92 |
| 1st | 6000 | 23.865 | 3.321 | 4.110 | 13.65 | 31.2 | 166.0 | 2253.04 |
| 2nd | 6000 | 23.865 | 2.077 | 3.360 | 6.98 | 61.1 | 166.0 | 1151.95 |
| 2nd | 6000 | 23.865 | 2.077 | 3.545 | 7.36 | 57.9 | 166.0 | 1215.38 |
| 2nd | 6000 | 23.865 | 2.077 | 3.900 | 8.10 | 52.6 | 166.0 | 1337.09 |
| 2nd | 6000 | 23.865 | 2.077 | 4.110 | 8.54 | 49.9 | 166.0 | 1409.08 |
| 3rd | 6000 | 23.865 | 1.308 | 3.360 | 4.39 | 97.0 | 166.0 | 725.45 |
| 3rd | 6000 | 23.865 | 1.308 | 3.545 | 4.64 | 91.9 | 166.0 | 765.39 |
| 3rd | 6000 | 23.865 | 1.308 | 3.900 | 5.10 | 83.5 | 166.0 | 842.04 |
| 3rd | 6000 | 23.865 | 1.308 | 4.110 | 5.38 | 79.3 | 166.0 | 887.38 |
| 4th | 6000 | 23.865 | 1.000 | 3.360 | 3.36 | 126.8 | 166.0 | 554.62 |
| 4th | 6000 | 23.865 | 1.000 | 3.545 | 3.55 | 120.2 | 166.0 | 585.16 |
| 4th | 6000 | 23.865 | 1.000 | 3.900 | 3.90 | 109.3 | 166.0 | 643.76 |
| 4th | 6000 | 23.865 | 1.000 | 4.110 | 4.11 | 103.7 | 166.0 | 678.42 |
| 5th | 6000 | 23.865 | 0.833 | 3.360 | 2.80 | 152.3 | 166.0 | 462.00 |
| 5th | 6000 | 23.865 | 0.833 | 3.545 | 2.95 | 144.3 | 166.0 | 487.44 |
| 5th | 6000 | 23.865 | 0.833 | 3.900 | 3.25 | 131.2 | 166.0 | 536.25 |
| 5th | 4750 | 24 | 0.833 | 3.700 | 3.08 | 110.1 | 166.0 | 511.63 |
| Late 280ZX 5-speed | ||||||||
| Tranny Gear | Engine RPM | Tire Diameter (In.) | Tranny Gear Ratio | Final Gear Ratio | Overall Ratio | MPH | Peak Torque (ft-lbs) | Torque at Rear Wheels (ft-lbs) |
| 1st | 6000 | 23.865 | 3.062 | 3.360 | 10.29 | 41.42 | 166.0 | 1698.25 |
| 1st | 6000 | 23.865 | 3.062 | 3.545 | 10.85 | 39.26 | 166.0 | 1791.76 |
| 1st | 6000 | 23.865 | 3.062 | 3.900 | 11.94 | 35.69 | 166.0 | 1971.19 |
| 1st | 6000 | 23.865 | 3.062 | 4.110 | 12.58 | 33.86 | 166.0 | 2077.33 |
| 2nd | 6000 | 23.865 | 1.858 | 3.360 | 6.24 | 68.26 | 166.0 | 1030.49 |
| 2nd | 6000 | 23.865 | 1.858 | 3.545 | 6.59 | 64.70 | 166.0 | 1087.23 |
| 2nd | 6000 | 23.865 | 1.858 | 3.900 | 7.25 | 58.81 | 166.0 | 1196.10 |
| 2nd | 6000 | 23.865 | 1.858 | 4.110 | 7.64 | 55.81 | 166.0 | 1260.51 |
| 3rd | 6000 | 23.865 | 1.308 | 3.360 | 4.39 | 96.97 | 166.0 | 725.45 |
| 3rd | 6000 | 23.865 | 1.308 | 3.545 | 4.64 | 91.91 | 166.0 | 765.39 |
| 3rd | 6000 | 23.865 | 1.308 | 3.900 | 5.10 | 83.54 | 166.0 | 842.04 |
| 3rd | 6000 | 23.865 | 1.308 | 4.110 | 5.38 | 79.27 | 166.0 | 887.38 |
| 4th | 6000 | 23.865 | 1 | 3.360 | 3.36 | 126.83 | 166.0 | 554.62 |
| 4th | 6000 | 23.865 | 1 | 3.545 | 3.55 | 120.21 | 166.0 | 585.16 |
| 4th | 6000 | 23.865 | 1 | 3.900 | 3.90 | 109.27 | 166.0 | 643.76 |
| 4th | 6000 | 23.865 | 1 | 4.110 | 4.11 | 103.69 | 166.0 | 678.42 |
| 5th | 6000 | 25.2 | 0.773 | 3.360 | 2.60 | 173.26 | 166.0 | 452.71 |
| 5th | 6000 | 23.865 | 0.773 | 3.545 | 2.74 | 155.52 | 166.0 | 452.33 |
| 5th | 6000 | 23.865 | 0.773 | 3.900 | 3.01 | 141.36 | 166.0 | 497.63 |
| 5th | 6000 | 23.865 | 0.773 | 4.110 | 3.18 | 134.14 | 166.0 | 524.42 |
| 4WD 5-speed | ||||||||
| Tranny Gear | Engine RPM | Tire Diameter (In.) | Tranny Gear Ratio | Final Gear Ratio | Overall Ratio | MPH | Peak Torque (ft-lbs) | Torque at Rear Wheels (ft-lbs) |
| 1st | 6000 | 23.865 | 3.592 | 3.360 | 12.07 | 35.31 | 166.0 | 1992.20 |
| 1st | 6000 | 23.865 | 3.592 | 3.545 | 12.73 | 33.47 | 166.0 | 2101.89 |
| 1st | 6000 | 23.865 | 3.592 | 3.900 | 14.01 | 30.42 | 166.0 | 2312.38 |
| 1st | 6000 | 23.865 | 3.592 | 4.110 | 14.76 | 28.87 | 166.0 | 2436.89 |
| 2nd | 6000 | 23.865 | 2.246 | 3.360 | 7.55 | 56.47 | 166.0 | 1245.68 |
| 2nd | 6000 | 23.865 | 2.246 | 3.545 | 7.96 | 53.52 | 166.0 | 1314.27 |
| 2nd | 6000 | 23.865 | 2.246 | 3.900 | 8.76 | 48.65 | 166.0 | 1445.88 |
| 2nd | 6000 | 23.865 | 2.246 | 4.110 | 9.23 | 46.17 | 166.0 | 1523.74 |
| 3rd | 6000 | 23.865 | 1.415 | 3.360 | 4.75 | 89.64 | 166.0 | 784.79 |
| 3rd | 6000 | 23.865 | 1.415 | 3.545 | 5.02 | 84.96 | 166.0 | 828.00 |
| 3rd | 6000 | 23.865 | 1.415 | 3.900 | 5.52 | 77.22 | 166.0 | 910.92 |
| 3rd | 6000 | 23.865 | 1.415 | 4.110 | 5.82 | 73.28 | 166.0 | 959.97 |
| 4th | 6000 | 23.865 | 1 | 3.360 | 3.36 | 126.83 | 166.0 | 554.62 |
| 4th | 6000 | 23.865 | 1 | 3.545 | 3.55 | 120.21 | 166.0 | 585.16 |
| 4th | 6000 | 23.865 | 1 | 3.900 | 3.90 | 109.27 | 166.0 | 643.76 |
| 4th | 6000 | 23.865 | 1 | 4.110 | 4.11 | 103.69 | 166.0 | 678.42 |
| 5th | 6000 | 25.2 | 0.813 | 3.360 | 2.73 | 164.73 | 166.0 | 476.13 |
| 5th | 6000 | 23.865 | 0.813 | 3.545 | 2.88 | 147.87 | 166.0 | 475.73 |
| 5th | 6000 | 23.865 | 0.813 | 3.900 | 3.17 | 134.41 | 166.0 | 523.38 |
| 5th | 6000 | 23.865 | 0.813 | 4.110 | 3.34 | 127.54 | 166.0 | 551.56 |
