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.
| Type | braked, synchronized [1] |
| Size (L x W) [mm] | 4450 x 3640 [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 | 4x1000Nm 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] 7550x3640 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.