01-12-2020, 11:53 AM | #1 |
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Bmw F series N55 HPFP upgrades
Just wanted to start a thread highlighting the possible HPFP upgrades for the N55 M2. Thus all % overstock is compared to the OEM n55 hpfp, except the spool performance pump which is based off of the B58 cam profile from their website, so N55 results may be a few percent lower.
XDI: 1) XDI-35: ~36% flow over stock 2) XDI-60: ~60% flow over stock warranty: I believe is 1 year Tuning: MHD and BM3 supported Compatibility: As of writing this post, it is only F series N55 compatible. This is also the most expensive option available, and their comparable models flow less than the competition. Spool performance: 1) FX-150: ~50% flow over stock 2) FX-180: ~78% over stock, this has been rumored on facebook and now is appearing as part of a comparison graph on their FX-150 hpfp. Warranty: Life time Tuning: as of writing this it is not MHD or BM3 supported and likely will need a custom remap. Compatible: F series N55 and B58 These are significantly cheaper than XDI while also flowing significantly more as well. DORCH engineering: 1) Stage 1: ~44% over stock 2) Stage 2: ~75% over stock Compatible: F series N55 and B58 Tuning: BM3 and MHD supported as of writing this it is not MHD supported and likely will need a custom remap, they also offer a free bin adjustment if you send them your ECU bin files. Warranty: Dorch has told me life time but their site hasn't stated that yet B58: 1) B58C: Also known as the bosch HDP5 evo hpfp which can make up to 250 bar of fuel pressure according to bosch's website and flow 0.897 cc/rev according to dorch engineering depending on which engine and cam profile it is used on (I believe the B58 cam profile allows it to have a higher cc/rev vs. the N55). Overall this yields: ~7% more fuel flow 2) B58D: also known as the bosch HDP6 hpfp capable of making up to 350 bar of fuel pressure according to bosch's website and flow 1.107 cc/rev according to dorch engineering depending on what cam profile it is using which is engine dependent. This HPFP is on the Toyota supra, and European models of the Z4m40i, and various other bmws and mini's with the B48. Overall this yields: ~32% more fuel flow (essentially XDI-35 levels) Nostrum HPFP upgrade 1) Nostrum HPFP upgrade ~63% over stock Compatible: F series N55 Tuning: BM3 check box tuning option should be released, Ecutek is the preferred tuning platform, and no word on MHD. Warranty: Lifetime These are all the HPFP upgrades that I have ever heard of both on the forums and from facebook groups + the respective manufacturer's teasing on product releases Instagram, please let me know if you guys have heard of any other options and I'll add it to the list.
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01-12-2020, 02:58 PM | #3 |
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Interesting that Dorch allows you to send them your BIN file (BM3/MHD) for map adjustments. We never received such an offer from Spool which would have been nice seeing as we don't have MHD support (w/o a custom tune) just yet or a commitment that they will support it.
+1 for this thread ... |
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01-12-2020, 03:41 PM | #4 |
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+1
Also these pumps (excluding XDI) are also cross platform compatible meaning they work with the B58 as well, just specify and they'll send you a b58 specific base plate.
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01-12-2020, 03:42 PM | #5 | |
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01-12-2020, 03:45 PM | #6 |
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That's what concerning us. We're placing a Spool order next week and will have no way to start the car. Well, that is unless we pay for a custom tune which were not quite ready for yet OR simply wait for integrated support.
Found this unboxing video for FX-150: https://www.youtube.com/watch?v=iPO3ToSM96c Last edited by ///Monika; 01-12-2020 at 03:47 PM.. Reason: Added unboxing vid. |
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01-12-2020, 03:59 PM | #7 | |
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IMO I would just wait for awhile till everything gets sorted out and there is more data on the pumps. Plus now that there is alot more competition prices should drop soon.
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01-12-2020, 07:29 PM | #9 |
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When you've done all the supporting mods (charge pipes down pipe, intercooler, tune etc) and see your hpfp pressure not being able to hit their targets while trying to make more power.
Or your factory pump dies and you're planning for more power in the future.
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01-12-2020, 09:51 PM | #10 |
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The OEM supra pump by far the best option. Low cost. OEM, plug and play. Require no remapping. Support 450+whp on E50 no issue.
Going further you need meth anyway.
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01-12-2020, 10:27 PM | #11 | |
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I disagree on PnP since you need to notch the base plate, bend an extremely stiff fuel line hose. The overall result is a ghetto mounted hpfp that is secured by a very small amount of metal on the outer edge of the base plate and this whole assembly is subjected to a cam driven system with high vibration especially at high RPM's. It's just so sketchy I don't like that idea. I don't like mixing fuel, and want to just be able to fully utilize the upcoming MHD flexfuel module and switch between 94 octane pump gas and E85 on the fly no messing with ethanol concentrations and having the car run poorly when concentrations are missed. I want the car to adapt from any ethanol concentration 0-85% so I don't have to guess how much pump gas is left in the tank, or how much ethanol to add. This is absolutely false if utilizing E85 or a fuel with sufficent octane. E85 can support upwards of 1,000 whp if your fuel system is capable and turbos can flow that much air. In terms of heat produced ethanol can cool the combustion temperatures and has an extremely high octane rating so IAT's have less of an impact. Clearly you need an intercooler that is rated for that power level, and turbos operating in their efficiency range as well, but saying you need meth past 450 whp is absolutely inaccurate. There are GTR's out there operating at 1,000 - 2,000 whp from AMS on E85 without any forms of meth injection and they run fine even on hot days. E50 has been used to hit 700 whp on the m4 and m5. So saying you need meth to go further anyway without any context whatsoever is hugely false and misleading.
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01-13-2020, 05:21 PM | #12 |
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Yes, very true. It would be beneficial to see some feedback/performance results from those who were actually involved in field testing these products. One also has to wonder how different these units really are from one another (aside from output capacity).
For us (at least), it was an end-to-end solution (rail to tank). We hate piecing kits together and hoping that everything works out (e.g. fittings). A bit surprised that Spool didn't offer a hard line option from the HPFP to the rail (only avail. on the Helix). Was hoping for an OEM appearance. |
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01-13-2020, 06:09 PM | #13 | |
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Yeah spool does offer a stainless an fuel line upgrade, just email them and ask.
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01-13-2020, 06:19 PM | #14 | |
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Odd, we did inquire about the SS hard line. This was their answer when asked:
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01-13-2020, 06:29 PM | #15 |
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Yeah I asked about the fuel line going from the hpfp all the way back to the lpfp and they said yes, I may have to double check.
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01-14-2020, 10:46 PM | #16 | |
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01-15-2020, 12:05 AM | #17 |
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No, however it is scheduled as a future MHD project just like the F series Wifi adapter was. As you can see in this thread: https://f87.bimmerpost.com/forums/sh....php?t=1450580
It will likely be similar to the E series N54 flexfuel set up with MHD, if they manage to get a canbus hub setup like ecutek then it will be equally as advanced. I personally picked MHD over ecutek because it is more user friendly with one touch on and off features for HPFPs, coil kits, speed limiters, and cold start unlike ecutek which is heavily reliant on the tuner.
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01-15-2020, 08:46 AM | #18 |
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Update: the dorch engineering hpfp is now compatible with BM3.
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01-15-2020, 08:56 AM | #19 |
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Are we sure the B58C pump is only a 7% increase? I need to do something, my stock pump is crashing on my custom tune here, and the B58 looks to be plug and play, and relatively inexpensive.
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01-15-2020, 09:58 AM | #21 | |
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It's no where near plug and play, you have to do alot of modifications and you have to Dremel the bottom of your intake manifold. Imo I wouldn't cheap out on an hpfp. There are better places to save money like intakes and downpipes. You should do alot more research on hpfps before deciding which route to go.
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01-15-2020, 09:59 AM | #22 |
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