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VT-4/B4 Modular Dynamometer

VT-4/B4 Modular Dynamometer

The most advanced modular dynamometer we offer is equipped with four eddy current brakes with total braking torque of 4000 Nm - in this way. You can measure cars up to 2000HP. Full synchronization (1:1), enabling the measurement of the most modern cars with an active central differential or advanced traction control. Standalone or in-pit. It has the same measurement modes as VT-4/B2.

Technical data
Type braked, synchronized [1]
Size (L x W) [mm] 4500 x 3826 [2]
Max/min wheelbase [mm] 3300/2300
Max/min track [mm] 2200/900
Minimum tyre diameter [mm] 400
Max weight per axle [kg] 3000
Number of axles 2
Brakes 2x 2500Nm eddy current brakes
Vmax [km/h] 300
Test mode inertial, dynamic load, road test, constant RPM
Pmax [HP] - inertial mode 1100 [3]
Pmax [HP] - dynamic load and road test modes 2000 [3]
Pmax [HP] - constant RPM mode (power on wheels) 1000 [4]
Power measurement accuracy, inertial mode [%] 0,1
Power measurement accuracy, braked mode [%] 1
Power supply (without cooling and exhaust fans) min. AC 400V / 40A
Required compressed air min. 6 bar
Basic composition in-pit / surface-mounted
Additional accessories turbo pressure sensor, AFR sensor, cooling fan, exhaust fan, exhaust pipes, OBD/CAN interface for live data acquisition

[1] The mechanical connection between the front and rear axles (synchronization) gives you an opportunity to measure modern AWD cars equipped with high-tech systems controlling torque distribution between front and rear wheels, also 2WD cars equipped with the advanced traction control system in which all the wheels must rotate in equal speed (otherwise car ECU will not allow measuring the car).

[2] 6020 x 4066 in surface-mounted version.

[3] Maximum power depends on engine torque characteristics and engine rotations. Cars with higher engine power can be measured with lower accuracy.

[4] Maximum power depends on eddy current brake rotations.