| ROTOTEST VPA-R83 4WD Specification |
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Maximum system performance
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| Braking power |
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| | 2WD (R3) | | 309 kW (414 imp hp) |
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| | 2WD (R8) | | 920 kW (1234 imp hp) |
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| | 4WD (R83) | | 618 kW (829 imp hp) |
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| Braking wheel torque |
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| | 2WD (R3) | | 1700 Nm (1254 lb-ft) |
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| | 2WD (R8) | | 4200 Nm (3098 lb-ft) |
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| | 4WD (R83) | | 3400 Nm (2508 lb-ft) |
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| Vehicle speed* |
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| | 2WD (R3) | | 306 km/h (190 mph) |
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| | 2WD (R8) | | 331 km/h (205 mph) |
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| | 4WD (R83) | | 306 km/h (190 mph) |
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| Wheel speed |
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| | 2WD (R3) | | 2500 1/min |
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| | 2WD (R8) | | 2700 1/min |
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| | 4WD (R83) | | 2500 1/min |
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| | * 650 mm (25.59 inch) wheel diameter |
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Measuring accuracy
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| Speed accuracy |
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| | 2WD (R3) | | 0.1 1/min |
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| | 2WD (R8) | | 0.1 1/min |
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| | 4WD (R83) | | 0.1 1/min |
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| Torque accuracy |
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| | 2WD (R3) | | ± 0.1 % FSO typ / ± 1 % OMV |
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| | 2WD (R8) | | ± 0.1 % FSO typ / ± 1 % OMV |
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| | 4WD (R83) | | ± 0.1 % FSO typ / ± 1 % OMV |
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| Complete turnkey system |
| Dynamometer units, VPA-R83 | | 4 |
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| Vehicle–powered Cooling & Fan Units, CFU | | 2 |
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| Vehicle–powered Hurricane Cooling Units, HCU | | 2 |
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| System Central Unit, SCU | | 1 |
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| Operatorīs PC, monitor and keyboard | | included |
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| Wheel adapters, bolts and nuts | | 4 |
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| Hydraulic hoses | | included |
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| Electrical cables | | included |
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| Calibration equipment | | included |
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| Complete oil fill | | included |
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| Software |
| Control system test modes |
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| | System controls speed to a pre-set value independent of load. |
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| | Systems controls torque to a pre-set value independent of speed. |
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| | System controls acceleration between two pre-set speeds. |
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| | Simulates road resistance caused by aerodynamic drag, rolling resistance and incline. |
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| | Simulates real-world accelerations defined by inertia, aerodynamic drag and rolling resistance. |
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| | Different wheel speed
Different wheel torque
Wheel spin simulation |
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| All data are displayed in real time as analogue and digital values and sweep charts. |
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| Calibration of load cell using dead weights. |
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| Stores measurements in an open, readily available format. Analyse of data in tables or graphs. Automatic correction (optional) or conversion of power and torque values. |
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| General |
| Maximum axle load |
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| | 2WD (R3) | | 2000 kg (4409 lbs) |
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| | 2WD (R8) | | 3500 kg (7716 lbs) |
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| | 4WD (R83) | | 2000 kg (4409 lbs) |
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| Axle height |
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| | 2WD (R3) | | 325 mm (13 inch) |
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| | 2WD (R8) | | 330 mm (13 inch) |
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| | 4WD (R83) | | 325 mm (13 inch) |
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| Power requirements | | 240 VAC / 110 VAC |
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| Water requirements | | None (air-cooled) |
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| Operating environment |
| Temperature range | | +15 °C to +40 °C |
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| Relative humidity | | 10 to 90 % non–condensing |
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| Options |
| | System Central Unit expansion | | One 4WD to two 2WD |
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| Data acquisition system, sensors included. |
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| Noise, Vibration and Harshness torque signal |
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| Accessories |
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| | Water/oil coolers |
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| | Set of calibration weights |
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| | Wheel adapters, bolts and nuts |
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| ROTOTEST VPA-R Arctic Protection |
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| Extended Temperature range | | -15 – 40 °C |
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