APR 2.0T EA888 Gen 3 High Pressure Fuel Pump (HPFP) APR 2.0T EA888 Gen 3 High Pressure Fuel Pump (HPFP) APR The APR High Pressure Fuel Pump (HPFP) dramatically increases the maximum volume of fuel the HPFP can deliver. In doing so, the direct injection fueling system is capable of satisfying fueling requirements set forth by high horsepower turbocharger systems, such as APR's Stage 3+ EFR7163R ROW Turbocharger System for the MK7 Golf R, S3 and similar vehicles. Background APR was an OEM supplier of HPFP components to VAG and has operated with a nearly perfect tract record since the program's motorsport backed inception in 2006.   With thousands of pumps sold, APR has a wealth of knowledge and manufacturing techniques utilized in the production of critical fueling components with exceptional reliability. In the early 2000’s, VAG began supplying engines with a new direct injection technology known as FSI. Unlike conventional engines of the past, fuel is sprayed directly into the cylinders under extreme pressure resulting in increased power with lower consumption rates and fewer emissions. The technology has spread across VAG’s entire lineup of modern gasoline engines and is present in the 2.0T EA888 Gen 3. How the direct injection fueling system works The engine’s fueling system can operate to a maximum of over 2,900 psi (200 bar) of pressure to correctly spray and atomize fuel directly into the engine’s cylinders. This is in contrast to multi-port injection vehicles of the past which typically operated around 40-60 PSI provided by a low pressure fuel pump. To generate these enormous pressures, the 2.0T EA888 Gen 3’s variable low pressure fuel pump supplies fuel to a cam driven and solenoid fired HPFP which in turn supplies the injectors with fuel. A four point cam lobe located on the exhaust camshaft drives the 2.0T EA888 Gen 3’s Hitachi Generation III HPFP. As engine speed increases, so does the pump’s ability to displace a greater volume of fuel per minute. The maximum volume the pump can deliver per revolution on the four point cam lobe is dictated by the stroke length from the cam lobe’s lift and bore diameter of the pump’s internal pressurizing cylinder, which is increased when upgrading to an APR HPFP. It’s important to understand, despite the name, APR’s HPFP upgrade is not necessarily designed to increase the engine’s fuel rail pressure. The primary goal is to increase the volume of available fuel. The APR solution The engine’s fueling system is very capable without modification. However, on vehicles where rail pressure drops below the requested values, the APR HPFP is necessary to keep up with demand. The APR HPFP addresses fueling needs by dramatically increasing the displacement of the HPFP by increasing the bore diameter of the pump's internal pressurizing cylinder. In doing so the fueling system is capable of displacing a higher volume of fuel per minute at every RPM, satisfying fueling needs for various high horsepower applications. This upgrade is only required where suggested by APR.
APR

APR 2.0T EA888 Gen 3 High Pressure Fuel Pump (HPFP)

Code: MS100144
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APR 2.0T EA888 Gen 3 High Pressure Fuel Pump (HPFP)
APR 2.0T EA888 Gen 3 High Pressure Fuel Pump (HPFP)
APR 2.0T EA888 Gen 3 High Pressure Fuel Pump (HPFP)
Dhs. 5,186.50
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Category: A3 . S3 . RS3 | 3rd Generation, A4 . S4 . RS4 | 4th Generation, A4 . S4 | 5th Generation, APR, Fuelings, Shop Audi

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The APR High Pressure Fuel Pump (HPFP) dramatically increases the maximum volume of fuel the HPFP can deliver. In doing so, the direct injection fueling system is capable of satisfying fueling requirements set forth by high horsepower turbocharger systems, such as APR's Stage 3+ EFR7163R ROW Turbocharger System for the MK7 Golf R, S3 and similar vehicles.

Background

APR was an OEM supplier of HPFP components to VAG and has operated with a nearly perfect tract record since the program's motorsport backed inception in 2006.   With thousands of pumps sold, APR has a wealth of knowledge and manufacturing techniques utilized in the production of critical fueling components with exceptional reliability.

In the early 2000’s, VAG began supplying engines with a new direct injection technology known as FSI. Unlike conventional engines of the past, fuel is sprayed directly into the cylinders under extreme pressure resulting in increased power with lower consumption rates and fewer emissions. The technology has spread across VAG’s entire lineup of modern gasoline engines and is present in the 2.0T EA888 Gen 3.

How the direct injection fueling system works

The engine’s fueling system can operate to a maximum of over 2,900 psi (200 bar) of pressure to correctly spray and atomize fuel directly into the engine’s cylinders. This is in contrast to multi-port injection vehicles of the past which typically operated around 40-60 PSI provided by a low pressure fuel pump. To generate these enormous pressures, the 2.0T EA888 Gen 3’s variable low pressure fuel pump supplies fuel to a cam driven and solenoid fired HPFP which in turn supplies the injectors with fuel.

A four point cam lobe located on the exhaust camshaft drives the 2.0T EA888 Gen 3’s Hitachi Generation III HPFP. As engine speed increases, so does the pump’s ability to displace a greater volume of fuel per minute. The maximum volume the pump can deliver per revolution on the four point cam lobe is dictated by the stroke length from the cam lobe’s lift and bore diameter of the pump’s internal pressurizing cylinder, which is increased when upgrading to an APR HPFP. It’s important to understand, despite the name, APR’s HPFP upgrade is not necessarily designed to increase the engine’s fuel rail pressure. The primary goal is to increase the volume of available fuel.

The APR solution

The engine’s fueling system is very capable without modification. However, on vehicles where rail pressure drops below the requested values, the APR HPFP is necessary to keep up with demand. The APR HPFP addresses fueling needs by dramatically increasing the displacement of the HPFP by increasing the bore diameter of the pump's internal pressurizing cylinder. In doing so the fueling system is capable of displacing a higher volume of fuel per minute at every RPM, satisfying fueling needs for various high horsepower applications. This upgrade is only required where suggested by APR.

The APR High Pressure Fuel Pump (HPFP) dramatically increases the maximum volume of fuel the HPFP can deliver. In doing so, the direct injection fueling system is capable of satisfying fueling requirements set forth by high horsepower turbocharger systems, such as APR's Stage 3+ EFR7163R ROW Turbocharger System for the MK7 Golf R, S3 and similar vehicles.

Background

APR was an OEM supplier of HPFP components to VAG and has operated with a nearly perfect tract record since the program's motorsport backed inception in 2006.   With thousands of pumps sold, APR has a wealth of knowledge and manufacturing techniques utilized in the production of critical fueling components with exceptional reliability.

In the early 2000’s, VAG began supplying engines with a new direct injection technology known as FSI. Unlike conventional engines of the past, fuel is sprayed directly into the cylinders under extreme pressure resulting in increased power with lower consumption rates and fewer emissions. The technology has spread across VAG’s entire lineup of modern gasoline engines and is present in the 2.0T EA888 Gen 3.

How the direct injection fueling system works

The engine’s fueling system can operate to a maximum of over 2,900 psi (200 bar) of pressure to correctly spray and atomize fuel directly into the engine’s cylinders. This is in contrast to multi-port injection vehicles of the past which typically operated around 40-60 PSI provided by a low pressure fuel pump. To generate these enormous pressures, the 2.0T EA888 Gen 3’s variable low pressure fuel pump supplies fuel to a cam driven and solenoid fired HPFP which in turn supplies the injectors with fuel.

A four point cam lobe located on the exhaust camshaft drives the 2.0T EA888 Gen 3’s Hitachi Generation III HPFP. As engine speed increases, so does the pump’s ability to displace a greater volume of fuel per minute. The maximum volume the pump can deliver per revolution on the four point cam lobe is dictated by the stroke length from the cam lobe’s lift and bore diameter of the pump’s internal pressurizing cylinder, which is increased when upgrading to an APR HPFP. It’s important to understand, despite the name, APR’s HPFP upgrade is not necessarily designed to increase the engine’s fuel rail pressure. The primary goal is to increase the volume of available fuel.

The APR solution

The engine’s fueling system is very capable without modification. However, on vehicles where rail pressure drops below the requested values, the APR HPFP is necessary to keep up with demand. The APR HPFP addresses fueling needs by dramatically increasing the displacement of the HPFP by increasing the bore diameter of the pump's internal pressurizing cylinder. In doing so the fueling system is capable of displacing a higher volume of fuel per minute at every RPM, satisfying fueling needs for various high horsepower applications. This upgrade is only required where suggested by APR.