This hybrid turbocharger, designed for a 1.8T engine, is based on internal modifications aimed at adapting the compression capacity and air flow d. Depending on the upgrade package chosen, the modifications involve the high-flow MFS compressor wheel, the housings or the turbine wheel.
Installation without modification The configuration is designed for for an external air intake. Compatibility with the vehicle must, however, be confirmed using the original turbocharger part number d.
Available upgrades — Stage 1, Stage 2 and Stage 3
Stage 1
Compressor wheel: MFS high-flow
Thrust bearing: 360°
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
This modification acts on the compressor impeller to dadapt the flow rate dto the air, whilst retaining a 360° thrust bearing for to distribute the axial forces.
Stage 2
Compressor impeller: MFS high-flow oversized
Intake casing d: re-profiled for accommodate the new impeller
Thrust bearing: 360° bearing
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
dThe oversizing of the impeller requires the intake casing to be re-profiled. This combination aims to improve the compressor’s aerodynamic characteristics without specifying a predefined final power output.
Stage 3
Compressor impeller: MFS high-flow oversized
d’ intake housing: re-profiled for to accommodate the new impeller
Thrust bearing: 360° bearing
Turbine impeller: high-flow oversized
Turbine casing: reprofiled for ly to accommodate the new impeller
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
This version combines the modifications to the compressor side with a turbine wheel oversized and a re-profiled turbine housing. Such a configuration can alter the flow rate and response time; its behaviour depends on the overall engine set-up.
What is a hybrid turbo?
A hybrid turbo retains an architecture suited to the intended installation whilst incorporating modified internal components. Depending on the upgrade stage, the modifications may involve the compressor wheel, the housings, the turbine wheel, the thrust bearing and the balancing.
The aim is dto adapt the compression and air flow d. However, a hybrid turbo is not defined solely by the appearance of its impeller: the geometry of the components and how they are combined determine its behaviour.
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 rate. A standard MFS wheel may retain a geometry equivalent to the original.
An MFS wheel Performance may feature a geometry adapted to the build, such as a different profile or dimensions. For this product, the wheel is specified as a high-flow MFS aluminium wheel, which is lighter, larger and taller than the original d. The product specifications indicate a claimed 15 per cent higher compression capacity, the effectiveness of which depends on the engine configuration.
A standard MFS impeller can be just as effective 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.
Why does the geometry of the blades influence the airflow d?
The compressor impeller draws in and then compresses the air. Its diameter, profile, height, width and the arrangement of its blades influence its aerodynamic behaviour. A suitable geometry can move more d’air under certain conditions, but the result also depends on the casings, the turbine, the boost pressure and the mapping. A larger impeller therefore does not automatically guarantee a better result and may alter the response time.
Reliability and balancing of the hybrid turbo
The 360° stop, documented at every stage, helps to distribute axial forces. The rotor is balanced at high speed, at 150,000 rpm on a Cimat VSR test bench, in order to limit vibrations and mechanical stresses. This balancing does not protect against incorrect installation, inadequate lubrication or the presence dof a foreign object.
Engine remapping and preparation
Appropriate engine management is required for to make the most of the hybrid turbo’s characteristics. Fuel injection, exhaust, cooling, boost pressure and the transmission must be checked or adjusted according to the tuning. The wastegate must be adjusted when reprogramming the ECU. No power gain is automatic without a coherent configuration.
Turbo specifications
Documented part numbers, without specified manufacturer or supplier classification:
765472-5001S
765472-0001
731320-0001
731320-5001S
PMF000090
Compatible vehicles and roles
Unspecified applications
Compatibility must be established based on the original turbocharger part numbers d’ and the vehicle’s exact specifications.
Additional technical specifications
Product type: hybrid turbo
Specified engine: 1.8T
Reference family: 765472
Installation: no external modifications required
Fitting instructions
⚠️ WARNING — IMPORTANT BEFORE INSTALLATION
Identify and rectify the cause of the previous fault. Check the lubrication circuit, the oil supply and return d, the cleanliness of the pipes, as well as the inlet and ensure there are no foreign objects.
Carry out priming in accordance with the applicable recommendations and follow the manufacturer’s instructions. A lubrication fault that is not rectified may result in the turbocharger failing again.
How do you identify the correct turbo?
Check the original turbo part number d, the OEM and manufacturer part numbers, the model, generation, body style, engine type, power output in hp, the mountingYear and the 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 data sheet. An identical engine specification does not always guarantee compatibility.
If in doubt, please contact us with the part number clearly visible on your original turbo d.
