Available configurations — Stage 1, Stage 2 and Stage 3

What is a hybrid turbo?

A hybrid turbo is based on a turbocharger architecture designed for accommodate internal modifications. Depending on the stage, these 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 d to the requirements d of an engine upgrade. A hybrid turbo is therefore not defined solely by the appearance of its compressor wheel, but by the coherence of its geometry and mechanical modifications.

MFS compressor wheel: standard or ‘ Performance ’?

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

A standard MFS impeller may retain a geometry equivalent to that of the ori d. An MFS ‘ Performance ’ impeller may feature a profile, height, width, diameter or blade configuration tailored to the tuning objective. For this product, a forged aluminium wheel – lighter, larger and taller than the d'original – is documented, with a claimed 15 per cent higher compression capacity.

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 a suitably tuned engine, though it does not in itself guarantee results.

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 d air under certain operating conditions.

The result also depends on the compressor housing, the impeller and the turbine housing, the boost pressure and the engine set-up. A larger impeller does not automatically guarantee better performance and may alter the response time as well as the range d of optimal use.

Reliability and balancing of the hybrid turbocharger

The 360° bearing stop present on all three stages helps to distribute axial forces around the shaft. However, it does not protect the turbocharger against incorrect installation, insufficient lubrication or operation outside the specified conditions.

Each stage undergo d high-speed balancing at 150,000 rpm on a Cimat VSR test bench. This process aims to minimise vibrations and mechanical stresses on the rotor.

Engine remapping and preparation

The engine management system must be adapted for to make the most of the hybrid turbo’s characteristics. The wastegate must be adjusted during the ECU reprogramming.

Depending on the level of tuning, the fuel injection, boost pressure, exhaust system, cooling system, clutch or gearbox may also require checking or adjustment. Fitting d a hybrid turbo does not automatically guarantee a power gain without appropriate configuration.

Turbo specifications

OEM part numbers

Manufacturer’s part numbers

Compatible vehicles and assignments

Additional technical specifications

Installation advice

How do you identify the correct turbo?

Check the part number marked on the original turbo d, then compare the OEM and manufacturer part numbers.. Also check the model, engine type 2.5 TDI, power output hp, theYear and the engine code where available.. An identical engine type does not always guarantee compatibility.

If in doubt, please contact us with the full part number from your turbocharger.