Available upgrades — Stage 1 and Stage 2

What is a hybrid turbo?

A hybrid turbo retains a turbocharger architecture designed for to accommodate internal modifications. Depending on the modification, these may involve the compressor wheel, blade geometry, diameters, housings, thrust bearing or balancing.

The aim is dadapt the compression capacity and air flow rate d. However, a hybrid turbo is not defined solely by the appearance of its impeller: the compatibility between the impeller, the housings, the rotating assembly and the engine management system remains crucial.

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

An MFS impeller Performance can be designed with a geometry, a profile, diameter or blade configuration suited to the tuning objective. 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 enable the engine to produce more power with the right set-up, though this alone does not guarantee a performance gain.

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 and the amount d’air it can move under certain conditions.

The result also depends on the compressor housing, the turbine section, the boost pressure and the engine set-up. A larger impeller therefore does not automatically guarantee a better result and may alter the response time as well as the range dof optimal operation.

Reliability and balancing of the hybrid turbo

The 360° thrust bearing, documented during both test phases, helps to distribute the axial forces applied to the rotating assembly. It does not, however, replace d’proper lubrication or d’correct installation.

Each preparation undergo dhigh-speed balancing at 150,000 rpm on a Cimat VSR test bench. This operation aims to limit vibrations and mechanical stresses on the rotor, though it cannot compensate for dfaulty installation, contamination or an inadequate oil supply.

Engine remapping and preparation

The engine management system must be adapted for to make full use of the hybrid turbo’s characteristics. The wastegate must be adjusted during the fitting and remapping of the ECU.

Depending on the level of tuning, the mapping, boost pressure, fuel injection, intake air cooling d, the exhaust and transmission must be checked or adjusted. Fitting the hybrid turbo does not automatically guarantee a power gain without appropriate engine configuration.

Turbo specifications

OEM part numbers — Mercedes

Manufacturer’s part numbers

Compatible vehicles and applications

Additional technical specifications

Assembly advice

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 data sheet.. Also check the make, model, generation, body style, engine type, power output, production period and engine code where available.

An identical engine specification does not always guarantee compatibility between two set-ups.

If in doubt, please contact us with the full part number of your original turbo d.