Bührer RP-21 Super (A) vs Fiat 70-90 (DT)
13 material differences
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1969–1975; 1984–1992). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
13 material differences · 2 fields identical or within 5%, which is not counted as material
| Field | RP-21 Super (A) | 70-90 (DT) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 71 hp | 69.1 hp | — |
| Engine declared | Perkins A 4.248 | FIAT-IVECO 8045.06.200 or 300 | differs |
| Displacement declared | 4.07 L | 3.61 L | +13% RP-21 Super (A) |
| Maximum torque declared | 212 lb·ft · 287 N·m | 168 lb·ft · 228 N·m | +26% RP-21 Super (A) |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 18.6–24.9 mph · 30–40 km/h | differs |
| Clutch declared | — | Dry VALEO, O.M.G. or LuK double clutch | — |
| Hydraulics & hitch | |||
| Pump flow declared | 5.2 gpm · 19.5 L/min | 9.4 gpm · 35.5 L/min | +82% 70-90 (DT) |
| Pressure declared | 2,845 psi · 196 bar | 3,046–3,118 psi · 210–215 bar | differs |
| Three-point lift at ends declared | 4,850 lb · 2,200 kg | — | — |
| Rear PTO speeds declared | 540 rpm | 540/1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,807 lb · 2,634 kg | 6,702 lb · 3,040 kg | +15% 70-90 (DT) |
| Maximum permissible mass declared | — | 11,684 lb · 5,300 kg | — |
| Wheelbase declared | 84.5 in · 2,147 mm | 92.2 in · 2,342 mm | +9% 70-90 (DT) |
| Length declared | 132.3 in · 3,360 mm | 152.9 in · 3,884 mm | +16% 70-90 (DT) |
| Width declared | 72.8 in · 1,850 mm | 76.0 in · 1,930 mm | — |
| Height declared | 67.7 in · 1,720 mm | 103.0 in · 2,615 mm | +52% 70-90 (DT) |
| Ground clearance declared | 16.1 in · 410 mm | 19.9 in · 505 mm | +23% 70-90 (DT) |
| Turning radius, braked declared | 10.6 ft · 3.23 m | 11.4 ft · 3.48 m | +8% 70-90 (DT) |
| Fuel tank declared | — | 98.3 qt · 93.0 L | — |
Bührer RP-21 Super (A) sources
Source
- Source: Traktorenlexikon, “Bührer RP 21 Super (A)”
- Source: Traktorenlexikon, “Massey Ferguson MF 178”
Fiat 70-90 (DT) sources
Source
- Source: Traktorenlexikon, “Fiatagri 70-90/70-90 DT”