IE High Pressure Fuel Pump (HPFP) for VW/Audi 2.0T FSI/4.2L FSI

The IE HPFP upgrade reliably increases the output of the OE fuel system delivering 50% more displacement than the factory unit. This is a popular modification for the MK6 Golf R and MK5 GTI as well as many others. This combination offers fueling support for nearly 600hp at 7500rpm required for many ECU tunes and turbo upgrades. This is a necessity for stage 2 & big turbo FSI cars.

Technichal Information

Increased displacement: 

The high-pressure fuel pump (HPFP) is a cam-driven fuel pump that provides over 1500psi to the direct injection fuel injectors in your engine. As performance modifications are often desired for the 2.0T FSI engines, more fuel is required to support the added horsepower from larger turbos, ECU tunes, and other power-increasing modifications. By increasing the bore of the cylinder, we were able to increase HPFP output by 50%. That makes our pump capable of near 600hp at 7500rpm. As you can see on the dyno chart to the right, the factory fuel pump is out of fuel much earlier than the IE HPFP. Although it is capable of over 350hp at 7000rpm, it does not provide nearly that much in the lower rpm range where most quicker-spooling setups see peak power numbers. This is a great upgrade for those looking to do a big turbo setup, or even max out the factory turbo at higher boost levels. Our pump will be perfectly calibrated with any ECU calibration which is tuned for a 9.8MM diameter HPFP piston, which is commonly available.

Consistent diameter piston: 

With rigorous testing behind this product, we have determined that a consistent diameter piston is absolutely necessary. Many other upgrade kits available use a piston that steps down to a smaller diameter. They do this because it allows them to use the original seal and nut assembly. However, doing this means that less than 1/2 of the cylinder is guiding the pin at the top of the stroke. This greatly increases wear, leakage past the pin, and decreases the stability of the pin riding in the cylinder. Additionally, using a stepped cylinder causes a pumping action on the bottom side of the piston, which pulses fluid against the shaft seal, increasing the possibility for leakage into the cam follower region. With our consistent diameter piston, as with factory design, there is no displacement change occurring on the bottom side of the piston, so there are no pressure pulses against the shaft seal.

Nitrided piston and cylinder: 

From the factory, the OEM HPFP includes a nitrided piston and cylinder. This is done to harden the parts significantly, reducing wear and keeping them within wear tolerances. Nitriding is not a coating, but rather a process in which Nitrogen atoms are infused into the atomic structure of the outer surface of the component. This increases its surface hardness and wear properties drastically. We have adopted this technology for the IE HPFP as it has proven to be reliable for thousands of miles and cannot chip or flake off like coated components. The thickness and composition of this Nitride layer are independently verified in a materials testing lab for each production batch.

Spring and retainer: 

In place of the factory steel spring retainer, the IE HPFP uses an ultra-lightweight titanium retainer. Just like a valve spring and retainer, less weight is better, as it reduces the chance of valve float happening. Our retainer was carefully FEA optimized and features a deep weight reduction groove on the outer surface. We also maintain the factory spring, as we have tested them to over 8000 rpm with zero valve float. Other pumps available use an unnecessarily stiffer spring, which puts more pressure on the follower and causes an unnecessary increase in cam follower wear.

Custom seal: 

The IE HPFP uses a molybdenum disulphide impregnated seal, which increases the stiffness and reduces friction on the seal. Along with this, our custom seals are spring energized to keep them sealing throughout their life with no concern of wearing and leaking. Many of the other HPFP kits on the market reuse the factory seal, which can easily be damaged when the internals are installed. That often causes fuel to leak past the seal and into the crankcase. 

Features: 

• • Supports Stage 2 and big turbo upgrades
• • 50% displacement over OE HPFP
• • Powers up to 600HP and 7500 RPM
• • Constant diameter piston for long life
• • Nitrided surface finish for exact tolerances
• • Extreme resistance to wear and abrasion
• • Ultralight titanium retainer eliminates valve float
• • Retains OE spring to greatly reduce cam follower wear
• • Leak-free molybdenum disulphide impregnated seal
• • Every kit is tested and verified before shipment
• • Engineered, designed, and manufactured  in the USA

Fitment: 

• VW - MK5 2.0T FSI EA113 engines (timing belt driven)
• VW - MK6 GOLF R 2.0T TSI EA113 engines (timing belt driven)
• Audi- A4 2.0T TFSI EA113 engines (timing belt driven)
• Audi- TT 2.0T TFSI EA113 engines (timing belt driven)
• Audi- TTS TFSI EA113 engines (timing belt driven)
• Audi- A3 TFSI EA113 engines (timing belt driven)
• Audi- S3 TFSI EA113 engines (timing belt driven)
• Audi- B7 RS4 2006-2008 (requires two pumps)
• Audi- B8 4.2L S5 2008-2013 (requires two pumps)