This hybrid turbo is designed for the following models: Kia Sorento 2.5 CRDI with 140 hp, corresponding to the part numbers listed in this data sheet. Its specification is based on a high-flow MFS compressor wheel, a 360° bearing stop and high-speed balancing, with additional modifications depending on the selected upgrade package.
The configurations offered retain the original installation plug & play, with no changes to the fitment on the vehicle.. However, the Stage 2 and Stage 3 configurations include internal re-profiling of the casings to accommodate the documented oversized wheels.
Available modifications — Stage 1, Stage 2 and Stage 3
Stage 1
Compressor wheel: MFS high-flow
Bearing thrust: 360°
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
This modification acts on the compressor impeller to d adapt the flow rate d of the turbocharger’s air. The 360° thrust bearing helps to distribute the axial forces more evenly within the rotating assembly.
Stage 2
Compressor wheel: MFS high-flow oversized
d' intake housing: re-profiled for accommodate the new impeller oversized
Bearing thrust ring: 360°
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
Stage 2 combines a oversized compressor wheel with a reprofiled housing d'admission. This modification is designed to alter the compression capacity and air flow rate d, although any power gain cannot be determined without taking into account the engine’s complete tuning.
Stage 3
Compressor impeller: MFS high-flow oversized
Casing d'intake: reprofiled for to accommodate the new impeller oversized
Bearing thrust ring: 360°
Turbine impeller: high-flow oversized
Turbine casing: re-profiled for ly to accommodate the new impeller oversized
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
Stage 3 includes modifications to both the compressor and turbine sides. The resulting performance depends on the overall configuration, in particular the engine management system, boost pressure and associated components.
What is a hybrid turbo?
A hybrid turbo utilises a turbocharger architecture adapted for accommodate modified internal components. Depending on the stage, the modifications may involve the compressor wheel, the housings, the turbine wheel, the thrust bearing system or balancing.
The aim is d to adapt the compression capacity and air flow d to a specific engine configuration. A hybrid turbo is therefore not defined solely by the appearance of its compressor wheel: the consistency between the wheels, housings and settings also plays a vital role.
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, blade arrangement or diameter where these characteristics are specified.
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 help to generate more power with the appropriate engine tuning, 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 its ability to move air under certain operating conditions.
The result also depends on the casings, the turbine wheel, the boost pressure and the engine. A larger wheel does not automatically guarantee better performance and may alter the response time as well as the optimal operating range d.
Reliability and balancing of the hybrid turbo
The 360° bearing stop present on all three stages helps to distribute axial forces. However, it does not eliminate the need d for a lubrication system in perfect working order or d for correct installation.
Each modification includes 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, without compensating for inadequate lubrication, contamination or incorrect installation.
Engine remapping and preparation
To make the most of the characteristics d of a hybrid turbo, it may be necessary to adjust the engine mapping and boost pressure management. Depending on the level of tuning, the fuel supply, intake air cooling d, the exhaust system, the clutch or the transmission must also be checked. The turbo alone does not automatically guarantee a power gain.
Turbo specifications
OEM part numbers
282004A101
28200-4A101
Manufacturer part numbers
733952-0001
733952-1
733952
Compatible vehicles and applications
Kia
Sorento 2.5 CRDI — 140 hp
Engine variants 2.5 CRDI — from 2002, end date unspecified
Engine code: not specified
Sorento Phase 2 2.5 CRDI — 140 hp
Engine 2.5 CRDI — from 2006, end date unspecified
Engine code: not specified
Additional technical specifications
Product type: turbo hybrid
Engine: 2.5 CRDI
displacement: 2.5 l
Fuel: diesel
Power: 140 hp
Installation: plug & play, without any modifications to the vehicle’s mounting
Fitting instructions
⚠️ WARNING — IMPORTANT BEFORE INSTALLATION
Identify and rectify the cause of the previous fault before d installing the turbo.
Check the lubrication system, the oil supply and return lines, and ensure all pipes are clean d.
Check the intake and ensure that no foreign objects can reach the turbocharger’s impellers.
Prime the turbo in accordance with the applicable guidelines and follow the vehicle 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 part number marked on the original turbo d and compare it with the OEM and manufacturer part numbers in this datasheet. Also check the make, model, phase, engine type 2.5 CRDI, the power rating (140 hp ) and theYear mounting type.. An identical engine specification is not always sufficient to confirm 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 with the full part number from your original turbo d.
