BMW N57 35d 313 hp Turbo Inlet – CFD-optimized airflow for the 313 hp diesel

Our turbo inlet for the BMW N57 35d with 313 hp was developed to specifically optimize airflow ahead of the turbocharger. Instead of simply enlarging the standard geometry, the air path was fully analyzed and bionically redesigned based on 3D data, CAD construction, and flow simulations.

The result is a flow-optimized geometry with approx. 20% less pressure loss compared to the stock inlet. At the same time, the design features approx. 10% more fluid volume.

In this way, the RevDop turbo inlet creates a more efficient air path to the turbocharger and reduces flow-related losses within the intake tract.

Key Benefits

• Approx. 20% less pressure loss compared to the OEM inlet
• Approx. 10% more fluid volume
• CFD-optimized internal geometry
• More uniform and controlled flow guidance
• Reduction of critical flow separation and turbulence
• More efficient airflow to the turbocharger
• Developed for the BMW N57 35d with 313 hp
• High-quality manufacturing from PA12
• Designed for the respective OEM interface
• Optimized solution for both stock and performance-enhanced vehicles

Developed using data, not intuition

At RevDop, development doesn't start with the finished product, but with the data.

Using 3D scanning, CAD construction, and CFD simulation, we analyze the existing stock geometry and identify areas where unnecessary flow losses occur.

On the stock N57 inlet, unfavorable flow conditions are particularly evident in the transition and deflection areas. The RevDop geometry was therefore designed for the most controlled and uniform flow path possible.

The result is more efficient airflow with less pressure loss.

20% less pressure loss – approx. 10% more fluid volume

A direct CFD comparison between the stock inlet and the RevDop turbo inlet clearly shows the differences.

Thanks to the revised geometry, calculated pressure losses were reduced by around 20%. At the same time, the inlet's fluid volume was increased by approximately 10%.

The combination of lower pressure loss and optimized volume creates a more efficient flow path to the turbocharger.

Especially with a high-performance diesel engine like the N57 35d with 313 hp, low-loss airflow is a crucial component of the entire intake system.

Bionic flow optimization

The geometry of the RevDop turbo inlet is based on bionic flow principles.

Instead of sharp transitions and abrupt changes in cross-section, the air path has been specifically smoothed and adapted to the actual flow requirements.

The goal was not simply to make the component larger, but to modify the existing geometry where the flow is actually affected.

Less pressure loss. More controlled flow. More efficient air path.

That is exactly the difference between a simple replacement part and a data-driven, RevDop-developed component.

High-quality manufacturing from PA12

The turbo inlet is manufactured using an industrial 3D printing process from high-quality PA12.

The material enables a complex, flow-optimized internal geometry while providing high dimensional stability for use in the engine bay. It has a temperature resistance of 180 degrees, and the polyamide is highly resistant to gasoline, oil, and chemicals.

Installation / Important Note

Caution during installation

Installing this turbo inlet is more complex than our more easily accessible N57 applications.

For installation, among other things, you must:

• remove the radiator fan
• and remove or disconnect a water line.
• New coolant will be required for refilling.

Due to the required installation effort and the intrusion into the cooling system area, we recommend that installation be performed by a specialist workshop or by appropriately qualified personnel.

Please note the vehicle-specific conditions before installation and take appropriate measures to protect the cooling system during removal and installation.

No modifications to the RevDop component itself are required – however, the installation requires appropriate technical expertise.

Scope of delivery

• 1× RevDop Turbo Inlet suitable for BMW N57 35d 313 hp