This hybrid turbocharger, designed for the Nissan 2.5 dCi engine with 174 hp, is available in three distinct performance levels. Each stage is fitted with a specially adapted MFS Performance compressor wheel, a 360° bearing stop and high-speed balancing on a Cimat VSR test bench.
Documented applications include the Nissan Navara and Pathfinder from 2005 onwards. The choice of kit must take into account the engine configuration and the intended use.
Available tuning packages — Stage 1, Stage 2 and Stage 2+
Stage 1
Compressor wheel: MFS Performance high-flow
Dimensions: 39.57 / 56.03 mm
Blade configuration: 11+0
Bearing stop: 360°
Balancing: high-speed at 150,000 rpm on a Cimat VSR bench
This configuration utilises an MFS Performance impeller designed for dapt the compressor’s air displacement capacity d, whilst retaining a configuration intended for a documented assembly Installation without modification.
Stage 2
Compressor impeller: MFS Performance high flow rate oversized
Dimensions: 44.47 / 59.48 mm
Blade configuration: 11+0
d intake housing: re-profiled for cord to accommodate the impeller oversized
Bearing thrust: 360°
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
The larger-diameter impeller requires re-profiling of the intake casing d. This combination aims to alter the compressor’s flow capacity, with performance depending on the engine management system and the overall mechanical configuration.
Stage 2+
Compressor impeller: MFS Performance high flow rate oversized
Dimensions: 50.20 / 65.00 mm
Blade configuration: 11+0
d intake housing: re-profiled for to accommodate the impeller oversized
Bearing thrust: 360°
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench
This version accommodates the largest compressor wheel amongst the configurations documented in this. specification sheet. Its use requires careful tuning, as an increase in diameter can affect air flow rate d, response time and the optimum operating range.
What is a hybrid turbocharger?
A hybrid turbo is based on a turbocharger architecture adapted for accommodate specific internal components. Depending on the modification, changes may involve the compressor wheel, its dimensions and geometry, the machining of the housings, the turbine wheel, the thrust bearing or the balancing.
The aim is d to adapt the compression capacity and air flow d to the requirements of the tuning. A hybrid turbo is therefore not defined solely by the appearance of its compressor wheel, but by the consistency of its mechanical and aerodynamic characteristics.
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 d. A standard MFS wheel may retain a geometry equivalent to that d of the original.
An MFS impeller Performance can have a diameter, profile or blade configuration tailored to the tuning objective. For the three stages presented here, the dimensions and the 11+0 configuration are shown separately to d'avoid any confusion.
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 when the engine tuning is correctly adapted, though it does not in itself guarantee a gain.
Why does the geometry of the blades influence the air flow rate d?
The compressor wheel 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 conditions, but the result also depends on the housing, the turbine wheel, the boost pressure and the engine tuning. A larger turbine wheel does not automatically guarantee better performance and may alter the response time.
Reliability and balancing of the hybrid turbo
The 360° thrust bearing, present on every documented stage, distributes the axial forces around the assembly. It contributes to a design suited to the stresses of the engine modification without making the turbocharger immune to poor lubrication or incorrect fitting.
The rotor is balanced at high speed, at 150,000 rpm, on a Cimat VSR test bench. This process aims to minimise vibrations and mechanical stresses during operation.
Engine remapping and tuning
Adjustments to the engine mapping and boost pressure management may be necessary for to make the most of the hybrid turbo’s characteristics. Depending on the level of tuning, the fuel injection, exhaust system, air cooling d, intake system, clutch or gearbox may also need to be checked or adjusted. The wastegate must be adjusted during the fitting and tuning of the ECU. The turbo alone does not guarantee a power gain.
Turbo part numbers
OEM part numbers — Nissan
14411EB300
14411-EB300
Manufacturer’s part numbers
751243-0002
751243-2
751243-5002S
Compatible vehicles and applications
Nissan
Navara 2.5 TDI –174 hp
Engine variants 2.5 TDI — from 2005, end date unspecified
Engine code: not specified
Pathfinder 2-.5- DCI –174 hp
Engine variants: 2.5 DCI — from 2005, end date unspecified
Engine code: not specified
Additional technical specifications
Product type: turbo hybrid
Engine: Nissan 2.5 dCi
displacement: 2.5 l
Power: 174 hp
Documented period: from 2005
Engine code: not specified
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 all pipes are clean. Check the intake and ensure there are no foreign objects present.
Prime the turbo in accordance with the applicable recommendations and follow the manufacturer’s instructions. The wastegate and engine management system must be adjusted in line with the chosen set-up.
Unresolved lubrication issues may lead to further turbocharger failure.
How do you identify the correct turbo?
Check the part number engraved or marked on the original turbo d, then compare the OEM and manufacturer part numbers.. Also check the make, model, engine type, power output 174 hp, the production period and, where available, the engine code.. 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 data sheet. An identical engine specification does not always guarantee compatibility.
If in doubt, please contact us with the full part number from your turbocharger.
