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This GT1749V hybrid turbocharger is designed for use with the following engines 2.0, TDCI, 115, hp,.. Its design features a high-flow MFS compressor wheel, a 360° bearing stop and high-speed balancing carried out on a Cimat VSR test bench.
Three levels of preparation are documented.. The internal modifications vary depending on the package chosen, whilst the assembly retains a standard configuration plug & play.
Stage 1 focuses primarily on the compressor section. The high-flow MFS impeller is designed to adjust the compression capacity and air flow rate d without any documented housing modifications for at this stage.
Stage 2 combines a oversized compressor impeller with a d intake housing, re-profiled. This modification enables d the new impeller to be fitted correctly and can alter the d air flow rate as well as the compressor’s performance.
Stage 3 includes documented modifications to the compressor and turbine sides. The resizing of the impellers and the re-profiling of both housings are designed to adapt the gas flow and air flow rate d, with performance that will also depend on the engine configuration.
A hybrid turbo retains an architecture suited to the vehicle whilst incorporating internal modifications. Depending on the upgrade stage, these may involve the compressor wheel, the turbine wheel, the housings, the thrust bearing or the balancing.
The aim is d to adapt the compression capacity and the air flow rate d. However, a hybrid turbo is not defined solely by the appearance of its impeller: the geometry of the components and the overall coherence of the unit are crucial.
MFS stands for ‘Milled From Solid’, meaning a wheel machined from a solid block. This technology primarily describes a manufacturing process and does not, on its own, guarantee an increase in air flow rate d.
A standard MFS impeller may retain a geometry close to the original. A Performance MFS impeller may feature a geometry adapted to the tuning, particularly in terms of its profile, the height or width of its blades, or even its diameter, provided these modifications are documented.
A standard MFS impeller can be just as glossy 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. The impeller described here is made of forged aluminium, lighter, larger and taller than the d'original one; the specifications indicate a 15 per cent higher compression capacity.
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 directly influence its aerodynamic behaviour.
A suitably designed geometry can move more air d under certain conditions, but the result also depends on the casings, the turbine wheel, the boost pressure and the engine tuning. A larger wheel therefore does not automatically guarantee better performance and may alter the response time.
The 360° bearing stop, present on all three documented stages, helps to distribute the axial forces around the shaft. It does not, however, replace d the need for proper lubrication or d correct installation.
The assembly is balanced at high speed, up to 150,000 rpm, on a Cimat VSR test bench. This process aims to limit vibrations and mechanical stresses on the rotor, without compensating for any faults d'installation or d'oil supply.
The engine management system must be adapted for to make the most of the characteristics of this hybrid turbo. The wastegate must be adjusted during the ECU reprogramming.
Depending on the level of tuning, the fuel injection, exhaust system, cooling, boost pressure and transmission must also be checked or adjusted. The hybrid turbo alone does not guarantee a power increase without a coherent engine configuration.
No specific fitment details by make, model, generation or production period are documented in the available information. Compatibility must be confirmed using the original turbo part number d.
⚠️ WARNING — IMPORTANT BEFORE INSTALLATION
Identify and rectify the cause of the previous fault before d installing the turbo.
dCheck the lubrication system, the oil supply and return lines, and ensure all pipes are clean. Also check the intake for any foreign objects.
Prime the turbocharger in accordance with the applicable recommendations and follow the manufacturer’s instructions.
A lubrication fault that is not rectified may result in the turbocharger failing again.
Check the part number marked on the original turbo d and compare it with the OEM and manufacturer part numbers in this data sheet. Also check the make, model, generation, body style, engine type, power output at hp, production period and engine code where available.
An identical engine specification does not always guarantee compatibility, as there may be several different set-ups.
⚠️ 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 taken from your turbocharger.
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.
CONTACT ALFI TURBO