This hybrid turbo for, with the engine codes Renault 2.2 dCi 90, is available in several tuning levels.. Depending on the package chosen, the modifications include the high-flow MFS compressor wheel, the housings and, for in the most advanced package, the turbine wheel.
Its installation applies to the Renault Master 2 documented below. To make full use of its characteristics, it must be accompanied by d a consistent engine tuning programme and d appropriate adjustment of the boost management system.
Available tuning packages — Stage 1, Stage 2 and Stage 3
Stage 1
Compressor wheel: MFS high-flow
Thrust bearing system: 360° thrust bearing
Balancing: High-speed at 150,000 rpm on a Cimat VSR test bench
This modification primarily affects the compressor section in order to d adapt the air flow rate d whilst retaining a configuration designed for documented external Installation without modification.
Stage 2
Compressor impeller: MFS high-flow oversized
d intake housing: Reprofiled for accommodate the new impeller oversized
Thrust bearing system: 360° thrust bearing
Balancing: High-speed balancing at 150,000 rpm on a Cimat VSR test bench
oversized ’s compressor impeller requires the intake housing to be re-profiled d. This combination aims to alter the compressor’s air displacement capacity d, without affecting the engine’s final power output.
Stage 3
Compressor impeller: MFS high-flow oversized
Intake housing d: Reprofiled for to accommodate the new impeller oversized
Thrust bearing system: 360° thrust bearing
Turbine impeller: High-flow oversized
Turbine casing: Reprofiled for ly to accommodate the new impeller oversized
Balancing: High-speed balancing at 150,000 rpm on a Cimat VSR test bench
This modification is carried out on both the compressor and turbine sides. Larger dimensions may alter the flow rate as well as the response time; the result depends on the overall engine configuration and its settings.
What is a hybrid turbo?
A hybrid turbo is based on a turbocharger architecture adapted for accommodate modified internal components. Depending on the upgrade stage, the modification 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 rate d to a specific tuning programme. A hybrid turbo is therefore not defined solely by the appearance of its compressor wheel.
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 d'air flow. A standard MFS wheel may retain a geometry equivalent to that d'of the original.
An MFS wheel Performance is characterised by a geometry tailored to the tuning objective. The product specifications indicate a forged aluminium wheel that is lighter, larger and taller than the d original, with a claimed 15 per cent higher compression capacity.
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. A higher airflow can only be utilised effectively with a suitably tuned engine.
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.
Appropriate geometry can move more air d under certain conditions. The result also depends on the casings, the turbine wheel, the boost pressure and the mapping. A larger wheel does not automatically guarantee better performance and may alter the response time.
Reliability and balancing of the hybrid turbo
The 360° bearing stop, featured on all three documented stages, helps to distribute the axial forces exerted on the rotating assembly.
Each modification undergo d ’ high-speed balancing at 150,000 rpm on a Cimat VSR test bench. This process aims to minimise vibrations and mechanical stresses, without compensating for any assembly or lubrication faults.
Engine remapping and preparation
The engine mapping and boost pressure management must be adapted for make the most of the hybrid turbo’s characteristics. The wastegate must be adjusted whilst remapping the ECU.
Depending on the level of tuning, the fuel injection, exhaust system, intake air cooling d, clutch or gearbox must also be checked and, if necessary, adjusted. Simply fitting d a hybrid turbo does not in itself guarantee a power increase.
Turbo specifications
OEM part numbers
1441100QAC
4404326
4506118
9112326
9201600
860095
93184463
8200100284
7701473023
7701473756
7711134676
8200069567
7711134972
8200459493
8200683861
R1630013
Manufacturer’s part numbers
702404-0002
702404-2
720244-0001
720244-0003
720244-0004
720244-1
720244-3
720244-4
720244-5004S
Compatible vehicles and assignments
Renault
Master 2 (T28, 33, 35) — 90 hp2.2 dCi — from 1997, end date unspecified
Engine code: not specified
Master 2 Phase 2 — 90 hp2.2 dCi — from 2003, end date unspecified
Engine code: not specified
Additional technical specifications
Product type: Hybrid Turbo
Engine: 2.2 dCi
displacement: 2.2 l
Fuel: Diesel
Power: 90 hp
Engine codes: Not specified
Documented period: From 1997
Fitting instructions
⚠️ WARNING — IMPORTANT BEFORE INSTALLATION
Identify and rectify the cause of the previous fault before d installing the turbocharger.
dCheck the lubrication system, the oil supply and return lines, and ensure the pipes are clean. Check the intake for any foreign objects.
Carry out the priming procedure in accordance with the applicable recommendations and follow the vehicle manufacturer’s instructions.
A lubrication fault that is not rectified may lead to further turbocharger failure.
How do you identify the correct turbo?
Check the part number 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, engine type 2.2 dCi, power output 90 hp, installation period and engine code where available.
An identical engine specification does not always guarantee compatibility, as there may be several different set-ups for for the same vehicle.
⚠️ 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 you are unsure about your fitment, please contact us with the part number clearly visible on your original turbo d.
