Renault UN1 Transaxle
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Renault UN1 Transaxle (UN1-04)
See Renault UN1 google doc for more info.
The recommended oil is ~3 litres of Castrol TAF-X 75W/90.
*Donar Vehicle* | *model* | *1st* | *2nd* | *3rd* | *4th* | *5th* | *reverse* | *Diff* |
25V6 | UN 1-04 | 2.05 | 0.96 | 0.76 | 3.89 |
Using 2nd, 4th and 5th we get the following overall drive ratios and performance figures.
gear | Overall ratio | 0-100kph time | Rev limited top speed | Additional Information |
2nd | 7.97:1 | ~2.2 sec | ~130 km/h | at 10,000 RPM |
4th | 3.73:1 | ~4.7 sec | ~280 km/h | change from 2nd starting revs 4,815 (peak power reached at 4244 RPM) |
5th | 2.96:1 | ~5.9 sec | ~350 km/h | change from 2nd starting revs 3,714, change from 4th starting revs 7,714 |
However 5th gear is the weakest in the box. http://www.un1.co.uk/Upgrading%20the%20UN1.htm
- Plot of Wheel Torque against speed in various gears: