This hybrid turbo for engine Bmw 3.0 N55B30 is fitted with an internal assembly designed to adjust the flow rate dcompressor air. Both documented configurations use a high-flow MFS compressor wheel, a 360° bearing retainer and high-speed balancing on a Cimat VSR bench.
In particular, it relates to several versions Bmw 335i, 435i, 535i, 640i, M135i, M235i, X3, X4, X5 and X6 with 306, 320 or 326 hp. Compatibility must always be confirmed using the turbo’s part number d’origin’.
This setup is based on an MFS wheel Performance with the documented dimensions and a 6+6 blade configuration. It aims to alter the ability to move d’compressor air whilst maintaining a Installation without modification external to the assembly d’origin’.
The Stage 2 incorporates a compressor wheel oversized to re-profiling the casing d’admission’. These changes enable d’adapt the passage’ d’air with a new design’. A larger wheel can also affect the response time and range dTo ensure optimum performance, the choice of stage must be consistent with the engine’s overall configuration.
A hybrid turbo is based on a specially adapted turbocharger design for to receive internal changes. Depending on the specific application, these may relate to the compressor impeller, its dimensions and the geometry of its blades, the casings, the turbine impeller, the thrust bearing system or the balancing of the rotor.
The aim is d’adjust the compression capacity and flow rate’ d’air to meet the requirements of engine preparation. A hybrid turbocharger is therefore not defined solely by the appearance of its compressor wheel: the dimensions, geometry, machining of the housings and the overall coherence of the assembly are all crucial factors.
MFS stands for ‘Milled From Solid’, meaning a wheel machined from a solid block. This term describes a manufacturing process, but does not in itself guarantee an increase in throughput dair. A standard MFS wheel can maintain a geometry equivalent to that d’origin’.
An MFS wheel Performance can be designed with a geometry suited to the intended application, with a specific profile, diameter or blade configuration, provided that these details are documented. For this product, both courses use a 6+6 configuration, with specific dimensions for each level of preparation.
A standard MFS wheel can be just as shiny as an MFS wheel Performance. It is not its appearance that determines its performance, but its geometry and its ability to move more dair. A higher flow rate can enable the engine to produce more power, provided that the engine has been tuned and the associated components are suitable.
The compressor wheel draws in and then compresses the air fed to the engine. Its diameter, profile, height, width and the arrangement of its blades all influence its aerodynamic behaviour. The right geometry can move more dair under certain operating conditions.
The result also depends on the compressor housing, the impeller and the turbine housing, the boost pressure and the engine management system. A larger wheel therefore does not automatically guarantee better performance in all conditions and may affect the turbocharger’s response time.
Both courses offer da 360° bearing stop, designed for distribute axial forces across the entire surface. This feature helps to ensure that the bearing operates as intended, without making the turbo immune to a lack of lubrication or incorrect installation.
The rotor is balanced at high speed, up to 150,000 rpm, on a Cimat VSR test bench. The purpose of this balancing is to minimise vibrations and mechanical stresses during operation. This does not mean that the circuits do not need to be checked d’oil, the intake and other possible causes of the previous fault’.
Appropriate engine management is required for make the most of the features da hybrid turbo. Mapping, boost pressure, fuel injection, air cooling dThe intake, exhaust and the capacity of the clutch or gearbox must be checked, depending on the vehicle and the level of modification.
To achieve the maximum power level permitted by the configuration, the systems d’injection, dThe exhaust and cooling systems, as well as the engine control unit, must be adjusted. The wastegate must also be adjusted. Fitting the turbo alone does not guarantee any specific increase in power.
⚠️ WARNING — IMPORTANT BEFORE ASSEMBLY
Identify and rectify the cause of the previous fault before fitting the turbocharger.
Check the lubrication circuit, the supply and the return doil. Check that the ducts and the intake are clean and free from foreign objects.
Carry out the priming in accordance with the relevant guidelines and follow the manufacturer’s instructions. The wastegate and boost management must be adjusted to suit the tuning.
If a lubrication fault is not rectified, it may lead to the turbocharger failing again.
Check the part number on the turbocharger d…the original and compare it with the OEM and manufacturer’s specifications in this data sheet. Also check the make, model, generation, body style, engine type and power output in hp, the assembly period and the engine code.
An identical engine does not always guarantee compatibility, as there may be several different configurations depending on the version or production period.
⚠️ Check your turbo’s part numbers
Before placing your order, Compare the part number on your turbocharger d’origin’ using the references given in this fact sheet. Having the same motor does not always guarantee compatibility.
If you are unsure about the identification or part number, please contact us with the reference number clearly visible on your turbocharger d’origin’.
ALFI TURBO specialises in the sale of turbochargers for for cars, commercial vehicles, heavy goods vehicles, construction machinery, agricultural machinery and boats: new turbochargers, remanufactured units, hybrid turbochargers, Cartridge and turbocharger spare parts. Over 20,000 items are available.
The turbocharger plays a vital role in the operation and performance d of a turbocharged engine. When a turbocharger needs replacing, it is important d to identify the exact part number before ordering.
ALFI TURBO supplies turbochargers for for a wide range of makes and engine types: cars, commercial vehicles, heavy goods vehicles, construction machinery, tractors and agricultural machinery, as well as various marine applications.
You can search for your turbo based on the vehicle or application, engine type, engine code, or directly using d an OEM or manufacturer part number found on your old turbocharger.
Browse our range of new turbochargers for for diesel and petrol engines. ALFI TURBO has over 5,500 new turbochargers in stock for covering a wide range of makes, engine types and turbocharger part numbers.
View new turbochargers →A standard exchange turbo allows you to replace a turbocharger whilst returning the old part where a deposit is required. Our catalogue includes numerous part numbers for from various makes and engine types.
View standard exchange turbochargers →Hybrid turbos are designed for set-ups requiring greater air flow d and higher performance potential than a standard set-up. Specifications depend on the turbo, its tuning and the engine configuration.
View hybrid turbos →The turbo Cartridge, also known as the central turbo cartridge, comprises the main rotating components of the turbocharger. ALFI TURBO has over 6,000 Cartridge for turbo part numbers.
View turbo Cartridge →Our catalogue covers a wide range of d applications fitted with d a turbocharged engine.
A single engine type may have been fitted with several different turbochargers depending on theYear, power output, engine version or technical evolution.. The application alone is therefore not always sufficient for to accurately identify the correct turbo.
Before ordering, note down the part numbers shown on the identification plate d of your old turbocharger. This may be d an OEM part number or d a part number from the turbo manufacturer.
Compare these part numbers with those listed on our product pages.. If in doubt, our team can help you verify the part number you are looking for before you place your order.
A loss of power, an unusual whistling noise, oil consumption d, abnormal smoke or poor engine performance may be linked to a turbocharger fault.
However, a fault that appears to be turbo-related may also stem d from a lubrication issue, d from contaminated oil, d from a foreign object, from the intake or exhaust systems, or d from another engine peripheral component.
It is therefore important to investigate the cause of the fault before fitting a new turbo or a new Cartridge.
Since 2012, ALFI TURBO has been assisting private individuals and professionals in identifying and replacing turbochargers.
A turbocharger failure may be the result d of another engine problem. Before fitting d a new turbo or Cartridge, identify and rectify the cause of the original fault to d avoid d damaging the new part.
Do you have a turbocharger part number but can’t find the matching part? Are you unsure which part number to choose? Send us the details from your old turbo so that our team can help you identify the part you’re looking for.
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