V-tech Dynamometers
Chassis Dynamometers Manufacturer

VT-4/B4 Modular Dynamometer

The most advanced dyno in our offer, equipped with two eddy current brakes with total braking torque of 4000 Nm - in this way we have the possibility of measuring cars up to 2500HP. The dyno is normally equipped with a mechanical system of axle synchronisation. The dyno is offered in a standalone version or pit version. It has the same measurement modes as VT-4/B2.

£66 600

Technical data

Type	braked, synchronized [1]
Size (L x W) [mm]	5500 x 3800 [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	4 x eddy current brake
Vmax [km/h]	300
Test mode	inertial, dynamic load, road test, constant RPM
Pmax [HP] - internal mode	450 [3]
Pmax [HP] - dynamic load and road test modes	2500 [3]
Pmax [HP] - constant RPM mode (power on wheels)	1000 [4]
Power measurement accuracy [%]	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] Mechanical connection between 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 advanced traction control system in which all the wheels must rotate in equal speed (otherwise car ECU will not be able to measure the car).

V-tech Dynamometers

Chassis Dynamometers Manufacturer

VT-4/B4 Modular Dynamometer

Technical data

[2] 4600x3800 in surface-mounted version.

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

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