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335i hpfp upgrade

Remember Me? Private First Class. Yesterday I had my first HPFP failure and it really sucks, I was on a mountain 2 hours away from home doing a rally with some friends that have bmw and a look like I had and old Datsun waiting to be towed at the street.

Fuel-It N54/N55 Fuel Pump Upgrade

I know Bmw extended the warranty but that doesnt help at all, I just want to get on my car, ride how long I want without the preoccupation of a HPFP failure. Please if anyone know of good aftermarket pump for the notify me. Appreciate 0. What do your car do? I'm asking because my car today trows a half engine light. The code reader shows code 30 FE turbo charger high pressure side and Air charge control shut down.

First Lieutenant. This is an interesting question because there are options for the VAG 2. It would be great for there to be an option for our pumps. Major General. Originally Posted by Mr. The amount of money to be made is enormous. Originally Posted by ragingclue. However, the price for the stock pump is pretty low. After developing, testing, and producing a replacement, without any immediate proof that it is indeed better, how much are you willing to pay for a shot in the dark replacement?

If you build it robust and upgrade the failing stock components, then how could it be a failed project? Originally Posted by woody I'm pretty sure it's the hpfp I am going through the same delimma with my car. The thing worrying me is I don't have any warranty on the car itself anymore mls comes fast and I know I still have warranty on the pump but i get half engine every now and then and I def.

Don't want to have to pay for a crappy pump. Originally Posted by sexye I think the manufacturer of a replacement pump would have to be relying on widespread paranoia to make a good dime on the product.

335i hpfp upgrade

Even though we see a lot of threads on here regarding the issue, we're a small percentage of the BMW community, often with mods pushing the fuel system even further than intended. Even if you look at the percentage of failures on this forum, it isn't the incredibly large number that it sometimes seems to be. Brigadier General. True, but if there were an upgraded HPFP on the market, that paranoia would sure spread. I'm sure people with good fuel pumps would upgrade just for the peace of mind.

Personally, I'd pay twice the price of a stock pump for an upgraded one just to not go through the trouble of going to the dealer to get a replacement. Originally Posted by quattr0.Not sure which harness you need? Click Here. This is a complete plug-and-play kit to support up to whp this number can vary quite a bit depending on tuning strategy and the blend of ethanol.

All of the safety and sophistication of the stock DME remain in place. Software changes are required to run this pump. If using MHD or Bootmod3simply check the box for our pump upgrade when flashing. Otherwise, please send your. BIN file to tuning dorchengineering. This change is free of charge for all of our customers. Pure Turbos EU. Stage 2 Coming Soon! Skip to content.

Description Additional information Not sure which harness you need? Click Here This is a complete plug-and-play kit to support up to whp this number can vary quite a bit depending on tuning strategy and the blend of ethanol.

N55 HPFP Flow Capacities The table below serves as a reference for maximum fuel flow in cubic centimeters per camshaft revolution for various N55 fuel pump options. These calculations are based on the N55 cam lobe. Each engine will have varying fuel flow capacities depending on the lift and number of lobes on the camshaft.For a complete list of BMW vehicles affected by premature failure of the high pressure fuel pump, please click the model box at the beginning of this article.

Causes for a BMW high pressure fuel pump failure are not always straightforward, although recent investigation has pointed towards poor engine oil service intervals or use of the incorrect engine oil not BMW certified as the likely culprits see our article on choosing the correct engine oil for your vehicle. Since the pump is driven by the engine camshaft, improper lubrication can wreak havoc on its internal parts.

Is This The End For Port Injection? - BMW N54 HPFP Overdrive Kit!

Other causes for failure are fuel leakage and solenoid issues. A BMW high pressure fuel pump replacement is a fairly straightforward repair with one caveat: the intake manifold must also be removed from the engine in order to access the fuel pump mounting bolts. Since the intake manifold must be removed, you should also replace your intake gaskets which are also prone to failure if reused.

You should also replace the o-ring on your throttle body since it must be removed as well. We have dealt with multiple reports of these generic pumps failing with less than miles of driving on them.

High pressure fuel pump required — A replacement pump is unfortunately very expensive…we had to purchase one for this article so we feel your pain. The following pump is the same part installed at the BMW dealership and will last the remaining life of your vehicle with proper maintenance. Intake manifold gaskets required — Since the intake manifold will need to be removed for this repair, you must replace its gaskets.

Not replacing your intake manifold gaskets can cause a vacuum leak after reassembly. Throttle body gasket required — Like the manifold gaskets, the throttle body gasket must always be replaced to avoid a vacuum leak after reassembly. Fuel pressure sensor optional — The fuel pressure sensor is a vital component of the high pressure fuel system and has a high failure rate.

Now is a great time to replace the sensor since it will need to be disconnected and removed with the fuel rail during this repair. The cabin filter housing is located at the back of the engine and must be removed to gain access to the intake manifold.

335i hpfp upgrade

In fact we strongly recommend not removing any of the wiring harnesses connected at the bottom of the intake manifold during this repair. The pump is buried underneath the intake manifold…there is unfortunately no other way to access it. The BMW high pressure fuel pump can now be easily accessed and removed. Remember that you will need a long reach 5mm hex socket to reach the fuel pump bolts… a regular hex wrench will not work.

Please see our tool list if you need to order one now. The Repair Difficulty Level displays graphically how challenging the repair is, from easy to advanced. Easy repairs usually require very few tools, have short repair times and do not require jacking and supporting the vehicle.

335i hpfp upgrade

As the difficulty level rises, expect the repair to demand more time, specialized tools, and better understanding of mechanics to complete the job.

The Level of Difficulty displays graphically how challenging the repair is, from beginner to expert. Beginner repairs usually require very few tools, have short repair times and are simple to complete for even the most novice of mechanics. As the difficulty level rises expect the repair to demand more time, use more specialized tools, and require a better understanding of mechanics to complete the job.

The Repair Cost graphically displays approximately how expensive the repair will be to perform. Please note that these cost estimates are approximate and can fluctuate based on brand preferences and manufacturer.

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ES : Mfg : BPM Qty: Choose how many gift cards you would like below. Availability: Expected Ship Date: Feb 24, Brand: Fuel-It! Availability: In Stock. On SALE. Includes new gaskets and Genuine BMW pump.Remember Me? Hi Guys Came across this, whilst surfing the net on fueling upgrades for the n Don't know its not very clear.

Appreciate 0. This was discussed on another forum. Major General. Hmm dont think I've heard of this product before, and it seems this was added to their page back in leads me to believe its all hooplah Brigadier General. I was doing some research on the S55 fuel pump.

The gear chain drive off the engine drives the vacuum pump and HPFP.

335i hpfp upgrade

Looking at RealOEM the sprocket is actually the same part number on both engines. The difference is that the S55 pump uses 1 pump for low load while the 2nd one kicks in at higher loads. I am thinking it wouldn't be too hard to retrofit the pump into an N The fuel quanitity control valves are controlled differently vs the N54, but a custom electronic input into the HPFP wouldn't be too hard to rig up.

The fuel quantity control valves can control the fuel rail pressure accorind to fuel demand. New high pressure fuel lines would need to be made up as well.

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Appreciate 1. Maybe one day some aftermarket company will do it, although the engine has already been around for a decade, they better hurry it up. All times are GMT The time now is PM. User Name.

BMW E92 335i N54 3.0L Fuel Pumps & Parts

Mark Forums Read. Thread Tools. Appreciate 0 Tweet. Find More Posts by tawfeeqh. Appreciate 1 natedog Not sure which harness you need? Click Here. Our Stage 2 kit is a bigger, better version of our Stage 1 kit for some of the more extreme applications. This is a complete plug-and-play kit to support whp and also allow for full E85 up to whp these numbers can vary quite a bit depending on tuning strategy, fuel type, etc. All of the safety and sophistication of the stock DME remain in place.

Software changes are required to run this pump. If using MHD or Bootmod3simply check the box for our pump upgrade when flashing.

Otherwise, please send your. BIN file to tuning dorchengineering.

BMW High Pressure Fuel Pump Replacement – 1,3,5,7,X3,X5,X6,Z4 Series

This change is free of charge for all of our customers. Pure Turbos EU. Stage 2 Coming Soon! Skip to content. Description Additional information Not sure which harness you need? Stage 2 kits will be back in stock in the coming weeks. Sorry for the inconvenience!

N55 HPFP Flow Capacities The table below serves as a reference for maximum fuel flow in cubic centimeters per camshaft revolution for various N55 fuel pump options.

VTT N54 HPFP Information/Disassembly/Upgrade Post

These calculations are based on the N55 cam lobe. Each engine will have varying fuel flow capacities depending on the lift and number of lobes on the camshaft.Menu Menu. Log in. Install the app. New posts Trending. New media New comments. Latest reviews.

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You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser. Premium Vendor. Oct 24, 1, 1, 0 42 Scottsdale, AZ. I finally had a few minutes to sit down and take a couple pictures of some old HPFP's and share with the community.

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First, lets look at the beautiful, albeit dirty HPFP connected to a vacuum pump:. Reactions: JeffmanJoe and deleted member. Oct 18, 8, 4, 0 AZ Ride E93 i. I'll buy a stoked hpfp, paypal ready. Is it more a design or labor cost limitation? Or would the cost of the actual upgraded parts be prohibitive?

What kind of volume would be required to make one of those options feasible? All of the above. Design is cheap when it's some joe fooling around on their computer after their normal job, but to pay a real design engineer that can actually give you results, not some bullshit ideas sketched in CAD I don't know any Pretty much everything is fairly simple except the bellows.

Getting something like the bellows made will not be cheap. It's custom, very thin metal, needs to be exact and withstand what you want out of it. You guys want me to destroy one and show you how that's made? I can post pics when I get around to it. Testing it also would be, um, interesting since you all can guess what happens when it fails. The actual machine work won't be too bad, but then you really need to be diligent about getting metal shavings out of it, since pretty much any contamination will kill you in short order.


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