Hybrid Turbo Bmw 318d 115 – 7790312D, 733701 2.0 TD hp

Hybrid
Hybrid Turbo Bmw  318D 115cv, 733701, 7790312D - 7790312E - 7790312F - 7790314F
  • Hybrid Turbo Bmw  318D 115cv, 733701, 7790312D - 7790312E - 7790312F - 7790314F
733701
Year: Not specified
Power: 115 hp
displacement: 2.0 l
Engine code: Not specified
Gasket kit
Preparation course
Exchange
€598.50 VAT included

498.75 tax excl.

Quantity
Manufacturing time: 15-20 working days

Description

This hybrid turbo is designed for the Bmw 318d 2.0 TD with 115 hp. Its specification is based on a high-flow MFS compressor wheel, a 360° bearing retainer and high-speed balancing, with additional modifications depending on the chosen upgrade package.

Designed for for installation plug & play without any modifications to the mounting, it is suitable for the Bmw E46 Series 3 Compact and Touring applications documented below.

Available specifications — Stage 1, Stage 2 and Stage 3

Stage 1
Compressor wheel: MFS high-flow
Bearing stop: 360°
Balancing: high-speed at 150,000 rpm on a Cimat VSR bench

This modification primarily affects the compressor wheel in order d to adapt the compression capacity and the air flow rate d. Its operation must remain consistent with the engine management system and the vehicle’s other components.

Stage 2
Compressor wheel: MFS high-flow oversized
d' intake housing: re-profiled for accommodate the new impeller oversized
Bearing thrust ring: 360°
Balancing: high-speed 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, though it does not, on its own, guarantee a specific power output.

Stage 3
Compressor impeller: MFS high-flow oversized
Intake housing d: re-profiled for to accommodate the new impeller oversized
Bearing thrust ring: 360°
Turbine impeller: high flow oversized
Turbine casing: re-profiled for ly to accommodate the new impeller oversized
Balancing: high-speed at 150,000 rpm on a Cimat VSR test bench

The Stage 3 combines modifications to the compressor side with a oversized turbine wheel and a re-profiled. turbine housing. This configuration alters the aerodynamic balance of the turbocharger and may influence both its flow rate and response time depending on operating conditions d.

What is a hybrid turbo?

A hybrid turbo utilises a turbocharger design adapted for to accommodate internal components that differ from the original configuration d. Depending on the upgrade stage, the modification may involve the compressor wheel, the housings, the turbine wheel, the thrust bearing or even the balancing of the rotor.

The aim is d to adapt the compression capacity and air flow d to the requirements d of an engine upgrade. However, a hybrid turbo is not defined solely by the appearance of its impeller: the geometry, dimensions, machining of the housings and the combination of components are all 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 air flow rate d. A standard MFS wheel may retain a geometry equivalent to that of the d original.

An MFS wheel Performance is characterised by a geometry tailored to the tuning objective. For this product, the MFS wheel is documented as being lighter, larger and taller than the d original, with an advertised 15 per cent increase in compression capacity. The versions Stage 2 and Stage 3 use a compressor wheel oversized.

A standard MFS impeller can be just as efficient 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 flow rate can contribute to power output when the engine is correctly tuned, though it does not in itself guarantee results.

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 and its ability to move air depending on the operating speed.

The result also depends on the housings, the turbine wheel, the boost pressure and the engine set-up. A larger wheel therefore does not automatically guarantee better performance in all conditions and may alter the turbocharger’s response time.

Reliability and balancing of the hybrid turbo

The 360° bearing stop, documented at each production stage, helps to distribute the axial forces exerted on the rotating assembly. It does not, however, d'replace the need for proper lubrication or d'correct installation.

The rotor is balanced at high speed, up to 150,000 rpm, on a Cimat VSR test bench. This process aims to minimise vibrations and mechanical stresses, but does not protect the turbocharger against insufficient lubrication, contamination or incorrect installation.

Engine remapping and preparation

The engine management system must be adapted for to make full use of the characteristics d of a hybrid turbo. The wastegate must be adjusted when remapping the ECU.

Depending on the level of tuning, it is also advisable to check or d'adjust the fuel injection, exhaust system, cooling, boost pressure and, if necessary, the transmission. Fitting d'a hybrid turbo does not automatically guarantee a power gain without appropriate tuning.

Turbo specifications

OEM part numbers
7790312D
7790312E
7790312F
7790314F
Manufacturer part numbers
733701-0001
733701-0004
733701-0007
733701-0009
733701-1
733701-4
733701-5001S
733701-7
733701-9

Compatible vehicles and specifications

Bmw
3 Series (E46) Compact — 318d 115 hp
Engine: 2.0 TD • Period: unspecified
Engine code: not specified
3 Series (E46) Touring — 318d 115 hp
Engine: 2.0 TD • Period: not specified
Engine code: not specified

Additional technical specifications

Product type: turbo hybrid
Installation: plug & play, no modifications to the mounting required
Engine: 318d 2.0 TD
Power: 115 hp
Engine codes: not specified
Fitting period: not specified

Fitting advice

⚠️ WARNING — IMPORTANT BEFORE INSTALLATION

Identify and rectify the cause of the previous fault before d installing the turbo.

Check the lubrication system, the oil supply and return lines, and ensure all pipes are clean d.

Check the intake and ensure there are no foreign objects. Prime the system in accordance with the applicable guidelines and follow the manufacturer’s instructions.

A lubrication fault that is not rectified may lead to the turbocharger failing again.

How do you identify the correct turbo?

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, mountingYear and engine code where available. 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 you are unsure about the identification or fitment, please contact us before ordering.

Product Details
733701
Hybrid
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Turbo: specialists in turbochargers since 2012

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