Description
Enhance your 2.0T Gen 3 engine's fuel delivery system with the APR High Pressure Fuel Pump (HPFP). This meticulously engineered upgrade significantly increases the fuel volume, ensuring your engine meets the demands of high horsepower setups.
Fits 2015-2024 Audi A3, Q3, S3, TT, TTS, Volkswagen Arteon, Atlas, Golf, Golf Alltrack, Golf R, Golf SportWagen, GTI, Jetta
Overview: The APR High Pressure Fuel Pump is designed to substantially boost the maximum volume of fuel delivered by the HPFP, enabling the direct injection system to meet the stringent fueling requirements of high-performance engines. By increasing the pump's displacement using high-quality components machined to exacting tolerances, APR has created a solution that ensures consistent fuel pressure and volume even under the most demanding conditions.
How the Direct Injection System Works: Fuel is initially delivered by a low-pressure fuel pump (LPFP) in the tank at approximately 4 to 6 bar. The HPFP then elevates this pressure to a maximum of 200 bar, depending on factory specifications. The high-pressure fuel is subsequently injected directly into the cylinders by the fuel injectors.
The Problem: The factory HPFP's displacement is limited by its internal bore size and the camshaft-driven stroke. High-performance applications, especially those using larger turbochargers or ethanol, can overwhelm this system, leading to inadequate fuel delivery, particularly in the mid to lower RPM range.
The APR Solution: APR addresses this issue by significantly increasing the HPFP's displacement, achieved through enlarging the bore diameter of the pump's internal pressurizing cylinder. This enhancement ensures a higher volume of fuel is available at every RPM, maintaining steady fuel pressure under extreme conditions without necessarily increasing the fuel rail pressure.
High-Quality Components and Precision Engineering: APR's HPFP internals are machined to tolerances as tight as .00004" and geometric tolerances as tight as .00005". Components like the plunger and barrel are crafted from certified, heat-treated bearing-grade stainless steel. The plunger undergoes a diamond-like coating process for exceptional surface hardness and reliability. Each unit includes a properly specified spring to prevent float and all necessary internal seals are replaced.
Internal Testing: Each APR HPFP is assembled in-house under strict guidelines and tested on APR's test rig to ensure proper operation. This process helps identify potential issues such as incorrect installation, leaking seals, or faulty solenoids, preventing damage to the engine's camshaft and ensuring reliable performance from the start.
Proven Track Record: Since pioneering HPFP upgrades for VAG direct injection engines, APR has become an OEM supplier for various VAG race cars and concept vehicles. With a nearly perfect track record since 2006 and tens of thousands of pumps sold, APR's HPFPs have proven their reliability and performance in motorsport victories worldwide.
Kit Includes:
- New OEM pump with fully rebuilt internals
- Increased volume displacement by the HPFP
- Higher pressure maintenance under demanding conditions
- Fully machine-tested and broken in before shipping
- Upgraded and weight-matched spring
- DLC coated piston
- Heat-treated bearing-grade stainless steel material
- Over 5,500 CC/MIN at 7,500 RPM
- Dimensional tolerances of .00004"
- Geometrical tolerances of .00005"
Emissions Compliance: This product complies with the EPA's Tampering Policy dated November 23rd, 2020. It is legal for sale and use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles. Testing with the California Air Resources Board (CARB) is pending for 50-state compliance.
Upgrade your fuel delivery system with the APR High Pressure Fuel Pump and ensure your engine's performance remains unmatched, even under the most demanding conditions.
