dynoKRAFT A330-4WD-ML

Single roller 4WD dynamometer

Modern all-wheel-drive dyno with permanent mechanical axis link

Features highlight

  • 515mm [20,3″] rollers
  • 320km/h [200mph]
  • 2x 1300HP wheel power
  • mechanical axis synchronisation

NOTE: Our dynamometers are constantly being developed, therefore we reserve the right to change the appearance and equipment or technical details of our devices, provided this is reasonable for the customer or the deviations are only insignificant. Shape and color deviations are expressly permitted.


The dynoKRAFT A330-4WD-ML sets new standards in automotive chassis dynamometer design, combines affordable price and precise workmanship with best-in-class DAQ system and Software for comprehensive data analysis.

The dynoKRAFT A330-4WD-ML features uprated and unique axle synchronization system.
It combines both mechanic and electronic axis link thus enabling extreme level of synchronization accuracy and dynamics.

Standard installation type is floor-top. Pit installation available on request.

Roller width of 2200mm allow to test even wide-body race cars without problems.

With two 3300Nm eddy current brake the A330-4WD automotive chassis dynamometer allows to test up to 2600HP  (1300HP per axis).
The roller diameter of 515mm reduces tire wear drastically and help keeping the tire temperature under control during long test sessions.

The dynoKRAFT A330-4WD-ML can be freely configured with extension modules (additional inputs, OBD Interface etc…) to match customer needs thanks to our upgradable design concept.

dynoKRAFT A330-Series
Technical specifications

Peak wheel torque per axle

3300 Nm (2,433 ft lbf)

Peak absorbed wheel power per axle

970 kW (1300 HP)

Peak dynamic wheel power per axle
~1120 kW (~1500 HP)
Max. tractive force per axle
6407 Nm

Power / torque measurement accuracy

3 %

Max. vehicle driving speed constant / periodic

320 km/h (200 MPH) / 350 km/h (217 MPH)

Max. vehicle acceleration rate

6 m/s² (19,7 ft/s²)

Max. load per axle

2500 kg (6613 lbs)

Track width (inside - outside)

946mm - 2200mm (37,2" - 86,6")

AWD Wheelbase (min - max)

2100mm - 3300mm (82,6" - 129,9")

Roller diameter

515mm (20,3")

Rotational inertia equivalent vehicle mass

430kg (948 lbs)

Dimensions L x W x H (outside)

see technical drawing

Weight 2WD/4WD (total)

~1350kg / ~3000kg (2976 lbs / 6614 lbs)

Rotational mass weight per axle

~ 865kg (1907 lbs)

Rollers balancing class

G2,5 or better

Mechanical link system type

HD bevel gearboxes, permanent

Warranty and Support

1 Year

Scope of delivery

  • dynoKRAFT A330-Series dynamometer, floor-top

  • optional pit installation kit

  • optional front extension bridge for AWD version covering the complete pit

  • mechanical link system, permanent

  • dynoKRAFT PC-Trolley with monitor holder

  • dynoKRAFT ADAQbase controller

  • dynoKRAFT ADAQexiom add-on module

  • dynoKRAFT ADAQexiom plugin

  • dynoKRAFT ADAQremote

  • dynoKRAFT ADAQsoftware incl. free lifetime updates

  • OBDII adapter

  • online user manual

  • free phone support

ADAQ controller - Technical specifications

(base dynamometer control module)
2x RPM (hall-sensor or digital 5V)
2x Load Cell with built-in amplifier
3x Analog 0-5V DC, configurable
1x Thermocouple Type-K
1x Built-in weather station (ambient temperature, humidity, pressure)

2x Brake controll, configurable as PWM, RC-Pulse, Analog, Servo

1x USB-C

(I/O expansion module)

5x Analog 0-5V DC, configurable

1x PWM 5V DC - cooling fan VFD control signal (driving speed dependant 0-100% output)
1x PWM 5V DC - throttle servo control signal

4x Dry contact 24V 5A max - configurable controll logic depending on input parameters

(Eddy Current power supply)

- 30 Amp rating
- Calibrated linear current control
- high-speed SCR-based design
- high-speed discharge
- Bluetooth V4.0 (BLE) telemetry (status monitoring and settings, Win10 only)
- Over-current and over-temperature protection
- LED status indicators
- Housing with integrated heat sink, fan-less design
- built-in internal AC-input and DC-load filters, minimal noise generation
- Oversized components with respect to current and voltage ratings

ADAQremote - XenceLabs Quick Keys Remote
(bluetooth remote controller for ADAQsoftware)

 -8 Keys / 4 Sets with assignable software functions
- built- in battery
- built-in battery charging circuit
- USB-C connection
- USB-Receiver included

(base dynamometer control software)

- supports up to two ADAQbase controllers
- supports up to four brakes
- reliable, high-speed load control
- automatic ambient conditions aquisition and correction factor calculations
- multiple correction factor norms (DIN, ISO, SAE, none)
- freely configurable engine power correction (rolling road dynamometers)
- linear and advanced non-linear PID brake controller
- open user interface allowing access to all functions and settings
- built-in plugin system allows integration of virtually any third-party hardware
- configurable print-out page
- automatic saving
- raw sensor-data logging

- fully featured data analisys with multi-graph and multi-channel capability
- analise data in Engine RPM, Time or any other fuction (i.e. Timing Advance and Lambda vs. Engine Torque)
- freely configurable graph area, print-out page, data tables
- data export .csv file

- inertia
- power sweep (using set acceleration rate)
- manual RPM (hold any RPM setpoint regardless of load)
- RPM curve (follow any RPM-profile curve, freely configurable profiles)
- load control mode (special mode for water brakes with fast TQ increase)
- brake sweep (non-PID based test mode)

ADAQexiom plugin
(additional features and functions for ADAQexiom module)

- configuration of name, unit, interpolation and offset for each analog input separatley
- manual or automatic relais operation based on logical parameters
- configuration of cooling fan automatic output control
- up to two ADAQexiom modules supported

- throttle servo output control (5V PWM signal, external additional signal converter may be requierd in some applications)