The Car 4×4 Dynamometer stands out for its versatility and precision in simulating real road conditions, making it an indispensable tool for performance tuning and full load remapping. Its capability to produce a complete power and torque curve in less than 30 seconds not only minimizes dynamometer time but also significantly reduces engine wear and overheating risks, compared to constant speed or loading dynamometers. The addition of a loading facility (eddy current brake) enhances its functionality, allowing for fixed load applications or controlled sweep tests, ideal for identifying issues at specific rpm or load conditions. This facility further supports engine mapping, with the added benefit of road simulation that considers factors like vehicle weight and wind resistance.

Adding up to 64 sensors for temperature, pressure, and more, the system aids in detailed problem assessment for tuners. An integrated Air/Fuel ratio meter provides real-time value recording, displaying data alongside performance figures for both Loading and Inertia tests. This meter can also operate as a stand-alone unit for on-road or track testing, ensuring optimal traction and limiting tyre heat buildup thanks to knurled rollers. The latest enhancement allows users to add weight to inertia tests, offering a valuable feature for testing more powerful cars and extending capabilities before upgrading to the High-Speed single roller type dynamo, emphasizing its role as a key tool for advanced dynamometer testing.

SKU: SKU 101+103

Car 4×4 (Double roller)

Roller / Drum (inertia dynamometer):

  • Roller diameter : 355 mm
  • Roller weight : ±1500 kg
  • Roller inertia : 32 kg m^2
  • Roller linear mass : ±1100 kg
  • Maximum wheel track : 2100mm
  • Maximum allowable speed : 250 km/h
  • Maximum power absorption : (4X2) 750 kW (1000Hp) and (4X4) 1500 kW depending on wheel spin
  • Maximum tractive effort : 9800 N depending on wheel spin
  • Rollers knurled

Frame

  • Height : (Inertia) 460 mm (Loading) 570 mm
  • Width : 1200 mm
  • Length : 2550 mm
  • Length : loading included : 3310 mm
  • Total weight : (Inertia) 1690 kg (Loading included) 2040 kg

Retarder Unit

  • Maximum allowable speed : 250 km/h
  • Maximum power absorption : (4X2) 500 kW
  • Maximum torque : (4X2) 1600 Nm
  • Maximum tractive effort : (4X2) 9000 N
  • Continuous absorption with cooling fan on retarder : ±30 % of maximum ratings.

Dynamometer Control Unit – Retarder Unit

  • Speed stability : ±1 km/h
  • Power requirement : 220 V 50A
  • Load stability : ±0,1 kW
  • Temperature sensor accuracy : 0,5 %
  • Pressure sensor accuracy : 0,5 %

 

Roller sync:

  • Synchronising system available on the 4×4 dynamometer to ensure that the front and rear rollers are running at the same speed.

Additional information

Weight 2040 kg
Dimensions 331 × 120 × 57 cm

R317 520,00

Related Products

Description

Roller / Drum (inertia dynamometer):

  • Roller diameter : 355 mm
  • Roller weight : ±1500 kg
  • Roller inertia : 32 kg m^2
  • Roller linear mass : ±1100 kg
  • Maximum wheel track : 2100mm
  • Maximum allowable speed : 250 km/h
  • Maximum power absorption : (4X2) 750 kW (1000Hp) and (4X4) 1500 kW depending on wheel spin
  • Maximum tractive effort : 9800 N depending on wheel spin
  • Rollers knurled

Frame

  • Height : (Inertia) 460 mm (Loading) 570 mm
  • Width : 1200 mm
  • Length : 2550 mm
  • Length : loading included : 3310 mm
  • Total weight : (Inertia) 1690 kg (Loading included) 2040 kg

Retarder Unit

  • Maximum allowable speed : 250 km/h
  • Maximum power absorption : (4X2) 500 kW
  • Maximum torque : (4X2) 1600 Nm
  • Maximum tractive effort : (4X2) 9000 N
  • Continuous absorption with cooling fan on retarder : ±30 % of maximum ratings.

Dynamometer Control Unit – Retarder Unit

  • Speed stability : ±1 km/h
  • Power requirement : 220 V 50A
  • Load stability : ±0,1 kW
  • Temperature sensor accuracy : 0,5 %
  • Pressure sensor accuracy : 0,5 %

 

Roller sync:

  • Synchronising system available on the 4×4 dynamometer to ensure that the front and rear rollers are running at the same speed.

Additional information

Weight 2040 kg
Dimensions 331 × 120 × 57 cm