This hybrid turbo for, with the engine codes Hyundai 2.5 D, features d a tuning programme designed to adapt the d air flow and the. compression capacity. Depending on the stage selected, the modifications involve the MFS compressor wheel, the housings and, for in the most advanced tuning package, the turbine section.
It is designed for the Hyundai Starex and H1 2.5 D 100 hp corresponding to the part numbers listed in this data sheet. It is designed for installation without any modifications to the mounting, subject to verification of the compatibility of the original turbo d.
Available tuning options — Stage 1, Stage 2 and Stage 3
Stage 1
Compressor wheel: MFS high-flow
Thrust bearing: 360° bearing
Balancing: High speed at 150,000 rpm on a Cimat VSR test bench
This modification primarily affects the compressor impeller to d adapt the flow rate d to the air, whilst retaining a configuration designed for for installation without modification.
Stage 2
Compressor impeller: MFS high-flow oversized
dIntake casing: Reprofiled for accommodate the new impeller oversized
Thrust bearing: 360° bearing
Balancing: High-speed balancing at 150,000 rpm on a Cimat VSR test bench
The Stage 2 combines a oversized compressor wheel with a reprofiled d intake housing. This modification is designed to alter the compressor’s air displacement capacity d, though it does not in itself guarantee a power gain.
Stage 3
Compressor impeller: MFS high-flow oversized
d intake housing: Reprofiled for to accommodate the new impeller oversized
Thrust bearing: 360° bearing
Turbine impeller: High-flow oversized
Turbine housing: 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 alters the compressor and turbine sides. The resulting performance depends on the overall engine configuration, boost pressure and the settings applied.
What is a hybrid turbo?
A hybrid turbo utilises a turbocharger architecture adapted for accommodate modified internal components. Depending on the stage, the modification may involve the compressor wheel, the housings, the turbine wheel, the thrust bearing and balancing.
The aim is d to adapt the compression and air flow d. A hybrid turbo is not defined solely by the appearance of its compressor wheel: the geometry of the components and how they work together are crucial.
MFS compressor wheel: standard or Performance?
MFS stands for ‘Milled From Solid’, meaning a wheel machined from a solid block. This technology describes the manufacturing process, but does not in itself guarantee an increase in air flow rate d.
Performance A standard MFS impeller may retain a geometry similar to the original. A customised MFS impeller may feature a diameter, profile or blade configuration tailored to the. On this product, the wheel is described as being made of forged aluminium, lighter, larger and taller than the d'original' wheel, with a claimed 15 per cent higher compression capacity.
A standard MFS impeller can be just as polished 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 properly with appropriate engine tuning.
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 and the amount d of air displaced under certain conditions.
The result also depends on the housings, the turbine wheel, the boost pressure and the mapping. A larger wheel therefore does not automatically guarantee better performance and may alter the response time as well as the optimal operating range.
Reliability and balancing of the hybrid turbo
The 360° stop present on all three stages helps to distribute the axial forces exerted on the rotating assembly. It does not replace d'proper lubrication or compliance with fitting conditions.
Each engine preparation undergo d high-speed balancing at 150,000 rpm on a Cimat VSR test bench. This process aims to minimise vibrations and mechanical stresses on the rotor, without compensating for any faults d in the installation or d in the oil supply.
Engine remapping and preparation
An adjustment to the engine management system is required for to make full use of the hybrid turbo’s characteristics. Depending on the level of tuning, it is advisable to check or d'adjust the mapping, boost pressure, injection, exhaust, cooling and, if necessary, the transmission. The wastegate must be adjusted when reprogramming the ECU. No power gain can be guaranteed without the correct configuration.
Turbo part numbers
OEM part numbers
28200-42650
2820042650
Manufacturer reference
49135-04300
Compatible vehicles and applications
Hyundai
H1 2.5 D –100 hp
Engine variants 2.5 D –periodunspecified
Engine code : unspecified
Starex 2.5 D —100 hp
Engine 2.5 D — periodunspecified
Engine code : unspecified
Additional technical specifications
Product type: Hybrid Turbo
Motorisation: 2.5 D
Installation: Fits without modification
Installation advice
⚠️ WARNING — IMPORTANT BEFORE INSTALLATION
Identify and rectify the cause of the previous fault before d installing the turbocharger. Check the lubrication system, the oil supply and return d as well as the cleanliness of all pipes.
Check the intake for foreign objects. Prime the system in accordance with the applicable recommendations 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, the OEM and manufacturer part numbers, as well as the make, model, engine type, power output, mountingYear and engine code.. A single engine type may be fitted with several different turbochargers.
⚠️ 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 does not always guarantee compatibility.
If you are unsure about the identification or fitment, please contact us before ordering.
