This hybrid turbo for for 4.2-litre engines producing 160 or 204 hp is available in three documented tuning stages. Its design retains a plug & play -style layout whilst incorporating, depending on the stage, a high-flow MFS compressor wheel, a 360° thrust bearing and oversized components.
Each configuration is balanced at high speeds of up to 150,000 rpm on a Cimat VSR test bench. The choice of course must take into account the intended objective and the overall preparation of the engine.
Available tuning packages — Stage 1, Stage 2 and Stage 3
Stage 1
Compressor wheel: MFS high-flow
Bearing: 360° thrust
Balancing: up to 150,000 rpm on a Cimat VSR test bench
This modification primarily affects the compressor impeller’s ability to move air, with no documented changes to the housing.
Stage 2
Compressor impeller: MFS high-flow oversized
Casing dInlet: reprofiled for to accommodate the new impeller
Bearing: 360° thrust bearing
Balancing: up to 150,000 rpm on a Cimat VSR test bench
Reprofiling the housing allows dto adapt the air passage dto the impeller oversized. This modification may alter the flow rate and behaviour of the compressor depending on the engine settings.
Stage 3
Compressor impeller: MFS high-flow oversized
d’ intake housing: re-profiled for to accommodate the new impeller
Turbine impeller: high flow oversized
Turbine housing for : re-profiled to accommodate the new impeller
Bearing: 360° thrust
Balancing: up to 150,000 rpm on a Cimat VSR test bench
This configuration combines modifications to both the compressor and turbine sides. Its performance depends on the engine assembly, the boost pressure and the chosen calibration.
What is a hybrid turbocharger?
A hybrid turbo utilises a modified architecture to accommodate internal components that differ from the original d’configuration. Depending on the stage, modifications may involve the compressor wheel, the housings, the turbine wheel, the thrust bearing and the balancing.
dThe aim is to adapt the compression capacity and air flow rate d. However, a hybrid turbo is not defined solely by the appearance of its impeller: the geometries, machining and overall balance are 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 airflow d. A standard MFS wheel may retain a geometry comparable to that dof the original.
An MFS impeller Performance can be designed with a geometry tailored to the build, including a different profile or dimensions where required. 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.
Why does the geometry of the blades influence the air flow rate d?
The compressor impeller draws in and then compresses the air. Its diameter, profile, height, width and blade arrangement all influence its aerodynamic behaviour. The result also depends on the casings, the turbine, the boost pressure and the engine management system. A larger impeller therefore does not automatically guarantee better performance and may alter the response time.
Reliability and balancing of the hybrid turbo
The 360° stop present on all three stages helps to distribute the axial forces. Therotor balancing up to 150,000 rpm on a Cimat VSR test bench aims to limit vibrations and mechanical stresses. However, it does not compensate for a lack of lubrication or incorrect installation.
Engine remapping and preparation
Operating da hybrid turbo may require adjustments to the mapping, boost pressure and wastegate. The dinjection, dexhaust and cooling systems must also be checked and adjusted if necessary. The power gain depends on the complete tuning of the vehicle and cannot be attributed to the turbocharger alone.
Turbo part numbers
OEM part numbers
17201-17030
1720117030
Manufacturer reference
CT26
Compatible vehicles and applications
Compatible makes, models, production periods and engine codes are not specified. Compatibility must be confirmed using the original turbo part number d.
Additional technical specifications
Product type: hybrid turbo
displacement: 4.2 l
Stated power outputs: 160 / 204 hp
Installation: documented configuration plug & play
Fitting advice
⚠️ WARNING — IMPORTANT BEFORE INSTALLATION
Identify and rectify the cause of the previous fault. Check the lubrication circuit, the oil supply and return lines d, the cleanliness of the pipes, and the intake, ensuring there are no foreign objects present.. Prime the system in accordance with the applicable recommendations and follow the manufacturer’s instructions.. A lubrication fault that is not rectified may result in further turbocharger failure.
How do you identify the correct turbo?
Check the turbo’s part number d– the original part number, OEM and manufacturer part numbers – followed by the make, model, generation, body style, engine type, power output,Year and 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 specification sheet. An identical engine specification does not always guarantee compatibility. If in doubt, please contact us before placing your order.
