Hybrid Turbo 2.5 DCI/CDTI 100, 120 and 146 hp – 757349

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Hybrid
Hybrid Turbo  2.5 DCI CDTI 100 120 146 hp 757349
  • Hybrid Turbo  2.5 DCI CDTI 100 120 146 hp 757349
  • Hybrid Turbo  2.5 DCI CDTI 100 120 146 hp 757349
  • Hybrid Turbo  2.5 DCI CDTI 100 120 146 hp 757349
757349
Year: Not specified
Power: 100, 120 and 146 hp
displacement: 2.5 L
Engine code: Not specified
Gasket kit
Preparation course
Exchange
€335.99 VAT included

279.99125 tax excl.

Quantity
Manufacturing time: 15-20 working days

Description

This hybrid turbocharger Stage 1, Stage 2 or Stage 3 is designed for 2.5- DCI/CDTI engines with power outputs of 100, 120 and 146 hp, corresponding to the part numbers listed on this data sheet. Its design features, in particular, a high-flow MFS compressor wheel, a 360° bearing stop and high-speed balancing on a Cimat VSR test bench.

The configuration is designed for for an external Installation without modification. The level of tuning should be selected according to the vehicle’s intended use and the planned modifications to the engine management system, fuel injection, exhaust and cooling systems.

Available tuning packages — Stage 1, Stage 2 and Stage 3

Stage 1
Compressor wheel: MFS high-flow
Thrust bearing: 360° thrust bearing
Balancing: high-speed balancing at 150,000 rpm on a Cimat VSR test bench

This modification primarily affects the compressor section in order dto adjust the compression capacity and dair flow, whilst maintaining a configuration suitable for the intended installation.

Stage 2
Compressor impeller: MFS high-flow oversized
dIntake casing: re-profiled for accommodate the new impeller oversized
Thrust bearing: 360° thrust bearing
Balancing: high-speed balancing at 150,000 rpm on a Cimat VSR test bench

The Stage 2 combines a oversized compressor impeller with a dintake housing that has been re-profiled. This modification is designed to adapt the airflow to the compressor’s new geometry.

Stage 3
Compressor impeller: MFS high-flow oversized
dintake housing: re-profiled for to accommodate the new impeller oversized
Thrust bearing: 360° thrust bearing
Turbine impeller: high-flow oversized
Turbine casing: re-profiled for ly to accommodate the new impeller oversized
Balancing: high-speed balancing at 150,000 rpm on a Cimat VSR test bench

Stage 3 modifies the compressor and turbine sides. The combination of oversized impellers and re-profiled housings enab d’s turbocharger to adapt its operation to a more comprehensive engine upgrade, though this alone does not guarantee the final power output.

What is a hybrid turbo?

A hybrid turbo uses a turbocharger design adapted for to accommodate modified internal components. Depending on the stage of the upgrade, modifications may involve the compressor wheel, the turbine wheel, the housings, the thrust bearing and the rotor balancing.

The aim is dto adapt the compression capacity and air flow rate d. However, the result depends on the overall configuration: impeller geometry, housings, boost pressure and engine settings. The appearance of the compressor impeller is therefore not sufficient to define the performance dof a hybrid turbo.

MFS compressor wheel: standard or ‘ Performance ’?

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 d. A standard MFS wheel can retain a geometry equivalent to that dof the original.

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. On this product, the documented MFS impeller is lighter, larger and taller than the d’original impeller; it is claimed to provide 15 per cent more compression. To make the most of this capability, appropriate engine tuning is required.

Why does the geometry of the blades influence the air flow rate d?

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 a larger impeller does not automatically guarantee better performance and may alter the response time. The result also depends on the casings, the turbine, the boost pressure and the engine mapping.

Reliability and balancing of the hybrid turbo

The 360° thrust bearing distributes axial forces around the turbo’s axis. 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 protect against incorrect installation, contamination or inadequate lubrication.

Engine remapping and preparation

The engine management system must be adapted for to make full use of the hybrid turbo’s characteristics. This involves adjusting the mapping, boost pressure, injection, air cooling d, the intake, the exhaust and, depending on the vehicle, the clutch or transmission must be checked.. The wastegate must be adjusted when remapping the ECU.. The turbo alone does not guarantee any specific power output.

Turbo specifications

OEM manufacturer part numbers

8.200.433.479D
8.200.683.866
8.200.766.765A
8.200.879.731
8200433479D
8200683866
8200766765A
8200879731

Manufacturer’s part numbers

757349-0001
757349-0002
757349-0003
757349-0004
757349-5001S
757349-5002S
757349-5003S
757349-5004S
GT1549S

Compatible vehicles and assignments

Fits to be verified
Documented engine specifications: 2.5 DCI/CDTI — 100, 120 and 146 hp
No specific make, model, production period or engine code is documented. Compatibility must be confirmed using the reference number of the original turbo d.

Additional technical specifications

Product type: hybrid turbo
Turbo family: GT1549S
Main part number: 757349
Engine: 2.5 DCI/CDTI
Specified power outputs: 100, 120 and 146 hp
Fitting: external Installation without modification

Fitting instructions

⚠️ WARNING — IMPORTANT BEFORE INSTALLATION

Identify and rectify the cause of the previous fault. Check the lubrication circuit, as well as the oil supply and return d. Check that the pipes are clean, the inlet and that there are no 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 turbocharger failure.

How do you identify the correct turbo?

Check the part number engraved on the turbo dthe original, OEM and manufacturer part numbers, as well as the vehicle’s make, model, generation, body style, engine type, power output,Year and engine code. An identical engine type does not always guarantee compatibility.

⚠️ 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 specification sheet. An identical engine specification does not always guarantee compatibility. If in doubt, please contact us before placing your order.

Product Details
757349
Hybrid
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Turbo: specialists in turbochargers since 2012

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.

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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.

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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.

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How do you identify the correct turbo part number?

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.

Turbo failure: identify the cause before replacement

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.

→ Identifying the symptoms d of a turbo failure

→ Understand the main causes of turbo failure d

ALFI TURBO, specialists in turbochargers since 2012

Since 2012, ALFI TURBO has been assisting private individuals and professionals in identifying and replacing turbochargers.

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BEFORE REPLACING A TURBO

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.

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