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This hybrid turbocharger, designed for the VW Touareg 2., 5 R5 TDI with 174 hp, is available in three performance levels. Each version is fitted with a high-flow MFS compressor wheel, a 360° bearing stop and high-speed balancing on a Cimat VSR test bench.
The documented application relates to the Touareg models 7LA, 7L6 or 7L7, fitted with BAC or BPE engines between January 2003 and May 2010.
This kit features a 52 mm MFS compressor wheel to d'adjust the compression capacity and airflow d'air. The result depends on the engine configuration and its electronic control system.
The 54 mm impeller requires the intake housing to be re-profiled d. This modification is designed to ensure the impeller fits correctly oversized and may alter the air flow rate d as well as the turbocharger’s performance.
This version uses a 56 mm MFS impeller and a d intake housing, re-profiled. A larger size alone does not guarantee better performance: the result depends on the overall configuration and the intended operating conditions d.
A hybrid turbo features a turbocharger design adapted for to accommodate different internal components or machining. Depending on the modification, changes may involve the compressor wheel, its dimensions, the housings, the turbine wheel, the thrust bearing or the balancing.
The aim is d to adapt the compression capacity and air flow rate d. However, a hybrid turbo is not defined solely by the appearance of its impeller: its overall design and the consistency of the modification are crucial.
MFS stands for ‘Milled From Solid’, meaning a wheel machined from a solid block. This manufacturing process alone does not guarantee an increase in air flow rate d. A standard MFS wheel may retain a geometry equivalent to that d of the original.
A standard MFS wheel can be just as shiny as an MFS wheel Performance. It is not its appearance that determines its performance, but its geometry and its ability to move more d'air. Depending on its design, an impeller Performance may have a diameter or profile suited to the intended application. A higher flow rate can help generate more power with the appropriate engine tuning, although a gain cannot be guaranteed regardless of the configuration.
The compressor impeller draws in and then compresses the air admitted by the engine. Its diameter, profile, height, width and blade arrangement all influence its aerodynamic behaviour. The result also depends on the casings, the turbine wheel, the boost pressure and the engine tuning. A larger wheel can also alter the response time and the range d'optimal use.
The 360° thrust bearing distributes axial forces over a wide surface area. For each of the three stages, the rotor is balanced at high speed, up to 150,000 rpm, on a Cimat VSR test bench to minimise vibrations and mechanical stresses. This balancing does not compensate for faults in assembly or lubrication.
Appropriate engine management is required for to make the most of the hybrid turbo’s characteristics. Depending on the level of tuning, it is advisable to check or d adapt the mapping, boost pressure, fuel injection, exhaust system, intake air cooling d and, if necessary, the transmission.. The wastegate must be adjusted during installation and when remapping the ECU.. No power gain is automatic without a coherent configuration.
⚠️ WARNING — IMPORTANT BEFORE INSTALLATION
Before fitting, identify and rectify the cause of the previous fault. Check the lubrication system, the oil supply and return lines d, and ensure the lines are clean.
Check the inlet for any foreign objects. Carry out the priming procedure in accordance with the applicable recommendations and follow the manufacturer’s instructions. The wastegate setting and engine management must be adjusted during installation.
Unresolved lubrication issues may lead to the turbocharger failing again.
Check the part number engraved on the original turbo d and compare it with the OEM and manufacturer part numbers in this data sheet. Also check the model, generation, engine type, power output (174 hp), installation period and the BAC or BPE engine code.
⚠️ Check your turbo’s part numbers
Before ordering, compare the part number marked on your original turbo d with the part numbers listed in this data sheet. An identical engine specification does not always guarantee compatibility.
If in doubt, please contact us with the full part number taken from your turbocharger.
ALFI TURBO specialises in the sale of turbochargers for for cars, commercial vehicles, heavy goods vehicles, construction machinery, agricultural machinery and boats: new turbochargers, remanufactured units, hybrid turbochargers, Cartridge and turbocharger spare parts. Over 20,000 items are available.
The turbocharger plays a vital role in the operation and performance d of a turbocharged engine. When a turbocharger needs replacing, it is important d to identify the exact part number before ordering.
ALFI TURBO supplies turbochargers for for a wide range of makes and engine types: cars, commercial vehicles, heavy goods vehicles, construction machinery, tractors and agricultural machinery, as well as various marine applications.
You can search for your turbo based on the vehicle or application, engine type, engine code, or directly using d an OEM or manufacturer part number found on your old turbocharger.
Browse our range of new turbochargers for for diesel and petrol engines. ALFI TURBO has over 5,500 new turbochargers in stock for covering a wide range of makes, engine types and turbocharger part numbers.
View new turbochargers →A standard exchange turbo allows you to replace a turbocharger whilst returning the old part where a deposit is required. Our catalogue includes numerous part numbers for from various makes and engine types.
View standard exchange turbochargers →Hybrid turbos are designed for set-ups requiring greater air flow d and higher performance potential than a standard set-up. Specifications depend on the turbo, its tuning and the engine configuration.
View hybrid turbos →The turbo Cartridge, also known as the central turbo cartridge, comprises the main rotating components of the turbocharger. ALFI TURBO has over 6,000 Cartridge for turbo part numbers.
View turbo Cartridge →Our catalogue covers a wide range of d applications fitted with d a turbocharged engine.
A single engine type may have been fitted with several different turbochargers depending on theYear, power output, engine version or technical evolution.. The application alone is therefore not always sufficient for to accurately identify the correct turbo.
Before ordering, note down the part numbers shown on the identification plate d of your old turbocharger. This may be d an OEM part number or d a part number from the turbo manufacturer.
Compare these part numbers with those listed on our product pages.. If in doubt, our team can help you verify the part number you are looking for before you place your order.
A loss of power, an unusual whistling noise, oil consumption d, abnormal smoke or poor engine performance may be linked to a turbocharger fault.
However, a fault that appears to be turbo-related may also stem d from a lubrication issue, d from contaminated oil, d from a foreign object, from the intake or exhaust systems, or d from another engine peripheral component.
It is therefore important to investigate the cause of the fault before fitting a new turbo or a new Cartridge.
Since 2012, ALFI TURBO has been assisting private individuals and professionals in identifying and replacing turbochargers.
A turbocharger failure may be the result d of another engine problem. Before fitting d a new turbo or Cartridge, identify and rectify the cause of the original fault to d avoid d damaging the new part.
Do you have a turbocharger part number but can’t find the matching part? Are you unsure which part number to choose? Send us the details from your old turbo so that our team can help you identify the part you’re looking for.
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