TURBO TEST DUO BIG
Combined high-speed core balancing and dynamic flow bench for large turbochargers across passenger car to heavy-duty truck applications.
Overview
The Turbo Test Duo Big combines a high-speed core balancing machine and a turbocharger calibration machine, also known as a flow bench. The machine supports turbochargers for passenger cars, light-duty trucks, and heavy-duty trucks.
In addition to high-speed balancing, the machine enables turbocharger calibration by adjusting the air mass flow of the turbine section. Measurement can be conducted in static or dynamic mode. Dynamic mode enables measurement of the turbocharger’s rotational speed, making it possible to determine the turbocharger’s technical condition and achieve more precise adjustment than static mode alone.
This model enables you to restore 100% of a turbocharger’s performance through calibration based on the pressure ratio measured under load at high speeds. The pressure ratio is the turbocharger’s outlet parameter that defines its performance, enabling the most precise determination of technical condition and the most accurate calibration.
Key Features
Technical Specifications
HIGH SPEED CORE BALANCING MACHINE
| Maximum Turbine Wheel Diameter | 114 mm (Exducer) / 134 mm (Inducer) |
| Maximum Compressor Wheel Diameter | 179 mm |
| Maximum Rotational Speed Value | 300.000 t/min |
| Unit Of Measurement | G, m/s² |
| Speed / Cycle Control | Automatic |
| Correction Point | Automatically calculated |
| Reverse Rotation Core Balancing | Yes |
FLOW BENCH PARAMETERS
| Maximum Turbine Inlet Air Pressure | 250 kPa |
| Air Mass Flow Measurement Accuracy | +/- 1 kg/h |
| Maximum Mass Air Flow That Can Be Measured | 450 kg/h at 1 bar turbine inlet pressure at 25°C air injection temperature |
| Maximum Volume Air Flow That Can Be Measured | 380 m³/h at a turbine inlet pressure of 1 bar and an inlet air temperature of 25°C |
| Turbocharger Position | Like in a car with an oil drain directed downward to achieve the highest measurement accuracy |
PRO VS EXPERT COMPARISON
| Function | Turbo Test Duo Pro | Turbo Test Duo Expert |
|---|---|---|
| High-speed core balancing | Yes | Yes |
| Static measurement of turbine section mass flow | Yes | Yes |
| Dynamic measurement of turbine section mass air flow while the simultaneous measurement of turbocharger rotational speed. | Yes | Yes |
| P2/P1 turbocharger pressure ratio measurement under load at high-rotational speed while the simultaneous measurement of turbocharger rotational speed. | - | Yes |
| Compressor section volume air flow measurement. | Optional | Optional |
| 12V and 24V electric actuator current draw measurement. | Yes | Yes |
| REA operating angle programming. | Yes | Yes |
| Siemens VDO adaptation | Yes | Yes |
| Clearance measurement of HELLA electric actuators | Yes | Yes |
| Voltage measurement of position sensors | Yes | Yes |
| Rod length adjustment of vacuum and pressure actuators according to mass air flow | Yes | Yes |
| VNT lever operating angle check | Yes | Yes |
| Holset electric actuator programming – the expected release date is the 2nd quarter of 2022 | Yes | Yes |
Model Comparison
| Feature | Turbo Test Duo Pro | Turbo Test Duo Expert |
|---|---|---|
| High Speed Core Balancing | Yes | Yes |
| Static Turbine Section Mass Flow | Yes | Yes |
| Dynamic Turbine Section Measurement | Yes | Yes |
| P2 P1 Pressure Ratio Measurement | No | Yes |
| Compressor Section Volume Flow | Optional | Optional |
| 12v 24v Actuator Current Draw | Yes | Yes |
| Rea Operating Angle Programming | Yes | Yes |
| Siemens Vdo Adaptation | Yes | Yes |
| Hella Actuator Clearance Measurement | Yes | Yes |
| Position Sensor Voltage | Yes | Yes |
| Vacuum Pressure Actuator Rod Adjustment | Yes | Yes |
| Vnt Lever Operating Angle Check | Yes | Yes |
| Holset Programmer | Yes | Yes |
Gallery
Frequently Asked Questions
The TURBO TEST DUO BIG is a combined high-speed core balancing machine and dynamic flow bench designed for large turbochargers. It supports turbochargers across passenger car to heavy-duty truck applications, combining balancing and calibration in one machine.
Related Resources
Ready to upgrade your infrastructure?
Contact our engineering team for a custom quote or technical consultation regarding TURBO TEST DUO BIG.
