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This hybrid turbo for, designed for the Volkswagen 2.5 TDI, is based on an internal modification designed to adapt the air flow dand the compression capacity.. Depending on the upgrade package selected, it is fitted with a high-flow MFS compressor wheel, a 360° thrust bearing and reprofiled housings.
It is designed for LT 2 and LT 3 Volkswagen s within the power ratings and installation periods documented below. Its design plug & play allows for Installation without modification of the original layout d.
This modification primarily affects the compressor impeller in order dto adapt the flow rate dto the air, whilst retaining a configuration closer to the original ddesign.
The oversized impeller requires the intake housing to be re-profiled d. This combination aims to increase the compressor’s air displacement capacity d, with performance depending on the engine configuration and mapping.
This modification applies to both the compressor and turbine sides. The increased dimensions and reprofiling of both housings alter the flow conditions and may also affect the turbocharger’s response time.
A hybrid turbo utilises a turbocharger architecture adapted for accommodate internal components that differ from the original dconfiguration. Depending on the stage, the modification may involve the compressor wheel, the turbine wheel, the housings, the thrust bearing system and balancing.
The aim is dto adapt the compression capacity and the air flow rate d. However, a hybrid turbo is not defined solely by the appearance of its compressor wheel: the geometry of the wheels and the overall coherence of the unit are decisive.
MFS stands for ‘Milled From Solid’, meaning a wheel machined from a solid block. This technology describes the manufacturing process and, on its own, is not sufficient to prove an increase in air flow d.
A standard MFS impeller may retain a geometry equivalent to the original. An MFS impeller Performance can be given a profile and dimensions tailored to the tuning objective. On this product, the impeller shown is made from forged aluminium and features a configuration that is lighter, larger and taller than the doriginal.
A standard MFS impeller can be just as shiny as an MFS impeller Performance. It is not its appearance that determines its performance, but its geometry and its ability to move more d’air. A higher airflow can help generate more power when the engine is properly tuned, though this alone does not guarantee results.
The compressor impeller draws in and then compresses the air sent to the engine. Its diameter, profile, height, width and the arrangement of its blades influence its aerodynamic behaviour. A suitable geometry can move more dair under certain conditions, but the result also depends on the casings, the turbine wheel, the boost pressure and the engine management system. A larger wheel therefore does not automatically guarantee a better result and may alter the response time.
The 360° thrust bearing fitted to each stage distributes axial forces over a wide surface area. It helps the bearing adapt to the stresses of the modification without making the turbo immune to faults in assembly or lubrication.
The rotor is balanced at high speed, up to 150,000 rpm, on a Cimat VSR test bench. This process aims to minimise vibrations and mechanical stresses during operation.
Appropriate engine management is required for to make the most of the hybrid turbo’s characteristics. The mapping, boost pressure and wastegate setting must be checked during reprogramming. Depending on the tuning, the fuel injection, exhaust, cooling, intake and transmission may also require checking or adjustment.
⚠️ WARNING — IMPORTANT BEFORE INSTALLATION
Identify and rectify the cause of the previous fault before d’installing the turbo. Check the lubrication system, the oil supply and return d’as well as the cleanliness of the pipes.
Check the intake for foreign objects. Prime the system in accordance with the applicable recommendations and follow the manufacturer’s instructions.
A lubrication fault that is not rectified may lead to further damage to the turbocharger.
Check the part number marked on the original turbo d, the OEM and manufacturer part numbers, as well as the make, model, generation, engine type, power output, installation period and engine code.. An identical engine may be fitted with several different turbo set-ups.
⚠️ 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, contact our team 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.
CONTACT ALFI TURBO