This article will serve as a comprehensive overview of the N54 HFPF's limitations and potential upgrades. The hpfp n54 is another constraint on the flow system after the LPFP upgrade. It doesn’t, however, require upgrading. There are workarounds.
These two solutions effectively circumvent the HPFP restriction. This is because the high-pressure fuel pump is designed to withstand the extremely high pressures necessary for direct insertion. The same pressure, however, isn’t required for port injection or charge pipe injection to work.
As a result, the LPFP is in charge of them. HPFP improvements, on the other hand, are a good choice for individuals who do not wish to install another fuel rail.
N54 HPFP - single barrel shotgun
The single barrel shotgun HPFP kit by Vargas Turbo Tech is an alternative for a standard high-pressure. This pump redirections the HPFP so that the drive belt can drive through it.
The HPFP casing, another belt, plus additional installation parts are included in the package. Your Original Equipment Manufacturer HPFP device, on the other hand, is "re-used." If you introduce a different HPFP, you should expect to pay more.
In other words, the belt can assist in overdriving the HPFP. This essentially indicates that the pump is pushed quicker than it was meant to. That might probably isn’t a smart idea for HPFPs that have previously been proven to be troublesome.
Most HPFP fails, on the other hand, are triggered by modes independent of the pump spinning too fast.
N54 HPFP - Shotgun Double Barrel Kit
This is identical to the other VTT option, except it includes a 2nd HPFP. The OEM pump also remains in place, and a second one is installed and operated by a belt (just like with the other kit).
The starting kit costs $1,299 and comes with everything you'll need to install the second HPFP. This does not, however, incorporate the second N54 HPFP. Vargas will charge $800 for another one, raising the total cost of this equipment.
On full E85, it's capable of producing up to 700whp. Lower mixes, such as E60, can provide more horsepower. It's a one-of-a-kind kit, and it's interesting to see just how much petrol the standard injectors can truly provide.
Unfortunately, it isn't a kit that comes highly recommended. It is comparable to the cost of a complete port injection system. It does, however, have an excellent performance, supporting a bigger flow than most N54s will ever require.
Overview of N54 HPFP Upgrades
For such a long time, high-pressure gasoline pumps were not a frequent modification. It wasn't until recently that effective remedies began to appear. These alternatives both have a lot of promise. However, before we consider the Helix units for our vehicles, we'd need to see some longer-term outcomes.
Furthermore, the VTT twin-barrel option provides great flow while matching or exceeding the cost of port injection. Lastly, the VTT single barrel kit is a good choice, however, it may not be enough for everyone.