Hybrid Turbo 1.7 CDTI 110 and 125 hp – 779591

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Hybrid
Hybrid Turbo 1.7 CDTI 110 125 hp 779591
  • Hybrid Turbo 1.7 CDTI 110 125 hp 779591
  • Hybrid Turbo 1.7 CDTI 110 125 hp 779591
  • Hybrid Turbo 1.7 CDTI 110 125 hp 779591
779591
Year: Not specified
Power: 110 hp, 125 hp
displacement: 1,., 7 CDTI
Engine code: Not specified
Gasket kit
Preparation course
Exchange
€461.99 VAT included

384.99125 tax excl.

Quantity
Manufacturing time: 15-20 working days

Description

This hybrid turbocharger is designed for the 1.7 CDTI engines with power outputs of 110 hp and 125 hp, corresponding to the part numbers listed in this data sheet:.. Its modification includes, in particular, a high-flow MFS compressor wheel, a 360° bearing stop and high-speed balancing.

Three levels of preparation are documented. The mechanical modifications differ depending on the stage and must be combined with appropriate engine management.

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

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

This modification primarily affects the compressor section. The high-flow MFS impeller is designed to adjust the compression capacity and air displacement d without altering d the documented installation.

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

The Stage 2 combines a oversized compressor wheel with a reprofiled d intake housing. This modification allows the housing to accommodate the new wheel and can alter the air flow rate d as well as the turbocharger’s response.

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

Stage 3 features modifications to the compressor and turbine sides. The re-profiling of both housings accompanies the integration of the oversized impellers. The resulting performance depends on the overall engine configuration and its settings.

What is a hybrid turbo?

A hybrid turbo utilises a turbocharger architecture adapted for to accommodate modified internal components. Depending on the upgrade package, the modifications may involve the compressor wheel, the housings, the turbine wheel, the thrust bearing system and 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 geometry, the machining carried out and the overall coherence of the unit are decisive factors.

MFS compressor wheel: standard or Performance?

MFS stands for ‘Milled From Solid’, meaning a wheel machined from a solid block. This is d a manufacturing process which, on its own, does not guarantee an increase in air flow d.

A standard MFS impeller may retain a geometry equivalent to that d'of the original. An MFS impeller Performance may adopt a geometry suited to the tuning objective, for example a different profile or dimensions where such modifications are intended.

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 rate can contribute to power output with appropriate engine tuning, though it does not, on its own, guarantee results.

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

The compressor wheel 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 and the amount d of air displaced under certain conditions.

The result also depends on the casings, the turbine wheel, the boost pressure and the engine tuning. A larger wheel does not automatically guarantee better performance and may alter the response time as well as the range d of optimal operation.

Reliability and balancing of the hybrid turbo

The documented 360° thrust bearing distributes axial forces over a wide surface area. It helps the bearing adapt to operating stresses, without making the turbocharger insensitive to poor lubrication or incorrect fitting.

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 associated with rotation.

Engine remapping and preparation

d operation of a hybrid turbo requires consistent adaptation of the engine management system. The mapping, boost pressure, fuel injection, exhaust and cooling must be monitored or adjusted according to the level of tuning. The wastegate must be adjusted whilst remapping the ECU. The clutch, transmission and other vehicle components must also be checked in accordance with the configuration.

Turbo specifications

OEM part numbers

8980536743
8980536744

Manufacturer part numbers

779591-0001
779591-0002
779591-0004
779591-5001S
779591-5002S
779591-5004S
779591-1
779591-2
779591-4

Compatible vehicles and applications

No detailed list of vehicles, model years or production periods is documented. Compatibility must be established based on the original turbo part number d and the part numbers listed above.

Additional technical specifications

Product type: Hybrid Turbo
Partnumber: 779591
Engine: 1.7 CDTI
Documented power outputs: 110 hp and 125 hp
Installation: plug & play configuration, with no documented modifications to the installation

Fitting instructions

⚠️ WARNING — IMPORTANT BEFORE INSTALLATION

Identify and rectify the cause of the previous fault before d installing the turbo.

Check the lubrication circuit, the oil supply and return lines, and ensure all pipes are clean d.

Check the intake and ensure 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 the turbocharger failing again.

How do you identify the correct turbo?

Check the part number engraved or marked on the original turbo d, then compare it with the OEM and manufacturer part numbers in this datasheet.. Also take into account the make, model, generation, body style, engine type, power output ( hp), mountingYear and engine code where available. 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 d turbo with the part numbers listed in this product sheet. An identical engine does not always guarantee compatibility.

If in doubt, contact our team with the full part number taken from your turbo.

Product Details
779591
Hybrid
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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

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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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