10-15-2020, 01:26 PM | #67 | |
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The OEM LPFP pushes 246LPH at 46psi (obviously decreasing as pressure increases, and also the longer the distance it has to travel and based on the size of the fuel line... And the OEM HPFP is 195LPH @ 7k RPM (less the lower in RPMs) Anyone with the slightest idea of how to calculate fuel requirements knows that is just about enough to support 430hp (93octane) And about 30% less power on E100... For e85 you would need more than 150% pumping volume, more for e100... You are making yourself look dumb...
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10-15-2020, 01:33 PM | #68 | |
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This guy "commanderwiggin" who now wants to have a street fight, with someone hes never seen...Just relentlessly insists on telling me I'm wrong, first by showing his E46 with a fully custom fuel system, literally down to an aftermarket radium surge tank, Now he's back "proving me wrong" about my N55 M2 fuel limits with his S55 M2 Lmfao... This guy is fucking shot.
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10-15-2020, 01:54 PM | #69 | |
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Web results HP Fuel Pump HDP 5 - Motorsport Systems It's the first pdf you'll see, and it lists in compatible fuels e85, it just won't have the fuel flow to support full e85 on the n55 but it would if used in lower power platforms. So yes it's e85 compatible.
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10-15-2020, 01:58 PM | #70 | |
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Good to know, its e85 compatible, too bad it cant ever flow anything close... Do you have specs on the LPFP? And if it is ethanol compatible (material wise)?
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10-15-2020, 02:03 PM | #71 | |
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10-15-2020, 02:06 PM | #72 |
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So no apology or correction from you for stating that the OEM pump isn't e85 compatible and will corrode??
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10-15-2020, 02:07 PM | #73 | |
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I believe I've seen it (lpfp specs) before I'll try to get it to you after my lunch break lol. Yeah it's sucks it can't flow enough fuel, which is why youll have to go with a stage 2 hpfp upgrade from either dorch or spool if you want to go full e85.
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10-15-2020, 02:11 PM | #74 | |
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I have have heard of cam upgrades for the s55 from vac, but I don't know if it will fit in the n55. I had a thread awhile back comparing p/n's but I think one thing was different so it might not fit.
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10-15-2020, 02:26 PM | #75 | |
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You have no idea. If you go back to the beginning, my first post on this thread I wrote 4 YEARS AGO. When I had just picked up my 2016 M2, and very few people had them... I learned from experience that too much ethanol would cause DT Malf. and horrible misses...Upon finding out the FP Volumes, and reading from people like Terry Berger, I realized the N55 EWG M2 Fuel system couldn't support over 30% ethanol and the higher the boost, the more issues... So I simply posted, warning people about the limitations of the stock fuel system and also added in that ethanol is corrosive to some metals, just as an education thread, as few people know that... After no issues and multiple ppl thanking me for going out of my way for posting, or adding supporting evidence themselves, here comes "commandrwiggen" 4 years ago, telling me I'm wrong and using his fully built E46 M3 as an example...You would think stating AGAIN, this post is regarding the N55 OEM fuel system would be enough, but no... Now, here he comes 4 years later, using his S55 M2 competition as further proof? Like am I not being clear? What about N55 stock fuel system is unclear? Then he threatens to want to fight me in a parking lot, lmao? And I'm schitzo? No I don't like people that argue with me over simple concepts especially when they are not really debatable... So please don't insult me, over the fact that this person is incredibly frustrating...And, I know it's not just me bc friends who have read this are messaging me on here, or texting me asking wtf is wrong with this guy... I don't get it, if I don't have something constructive to add, I don't go posting on other peoples threads to attacking them personally...Especially when they took time out to try to write a helpful post. Well I guess Im glad Im no longer on the M2 forums bc, compared to both the e9x forum and now the X4M forum, I've noticed the M2 forum has its share of especially childish, and just angry or mean members... I mean seriously, did your moms not hug you guys enough or something...Jesus save me.
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10-15-2020, 02:37 PM | #76 | |
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Yea as soon as you tell me when I specifically said the HPFP was not ethanol compatible...I don't think I ever said it was or wasn't... When the Jerkoff just stated it was e85 safe, I asked him to back up his claims, bc obviously the guy has an issue with reading comprehension...So I said can you supply any evidence to support it...But I never said it was or wasn't.. When F87source posted technical info saying its safe for e85, I thanked her for posting something constructive... I have no problem admitting I'm wrong or apologizing, but again, My first post to my last are consistent...Claiming 1...The OEM M2 fuel system cant take too much ethanol..,(Volume wise) and that ethanol is corrosive to many fuel systems not equipped to deal with it...I stick by that 100%... And can't really say I am surprised the HPFP is safe with e85 blends, bc all gas these days have up to 10% ethanol and car companies usually over-engineer any parts that could cause expensive failures, especially if they have to repair them under warranty... If I'm mistaken and I specifically claimed the HPFP is NOT compatible with ethanol, I will absolutely apologize...But I strickly remember, (even 4 years ago) stating I run 20-30% ethanol on ,my M2 all the time...)
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10-15-2020, 02:41 PM | #77 |
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LPFP is the bosch 66120, this should be the OEM for bmw. I can't find any PDFs on this anymore since 66120 is also the p/n of some bosch hand blender.
So here's the p/n if anyone wants to look. But honestly it shouldn't matter because with the stock lpfp you're only going to run e30 anyways which should be fine. Then if you want to run full e85 the whole fuel system must change anyways and at that point you'll be fine and have nothing to worry about. Just run top cylinder lube, a good quality fuel stabilizer, in line fuel filter and once a year run through a tank or two of plain gas with fuel system cleaner (that's designed to clean up any deposits from ethanol fuel) such as chevron techron or the bmw stuff (iirc is techron, and for the Canadian guys that can't buy techron in canada).
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10-15-2020, 02:42 PM | #78 | |
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That is the main reason I went with the S58 platform, the apparent strength in the OEM Fuel system...And considering, the M3/M4 will use the S58, I am guessing there will be no shortage of performance engine parts for my platform, (If I don't switch over to the M4)... I actually had to build my own very simple return style fuel supplemental system around the time I wrote this post bc there were no aftermarket options yet...
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10-15-2020, 02:43 PM | #79 | |
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10-15-2020, 02:51 PM | #80 |
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Sorry, There was a member on here, that was local, a chick with an M2, that used to meet us at shows with a very similar user name... I apologize. LOL
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10-15-2020, 02:54 PM | #81 | |
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10-15-2020, 02:57 PM | #82 | ||
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Now you're crying that he'd rather take you to the parking lot? What a piss baby |
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10-15-2020, 03:00 PM | #83 |
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No problem lol.
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10-15-2020, 03:04 PM | #84 | |
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I would say if you're running full e85 on upgraded fuel pumps year round, I would recommend more frequent oil changes, and as you said the occasional full tank of gasoline... as the E tends to increase blow-by, past both the rings, and also the valve guides/seals and bc of ethanol hydrophilic properties it tends to absorb water which is obviously a product of combustion from both gasoline and ethanol based fuels... Also, bc it's a DI engine, with a regular old school PCV system that routes the CCV back into the intake, using a boroscope after 40-50k to check for carbon deposits in the intake manifold and the intake ports in the head...Much like the commonly known issues with the N54 and E series N55...Unless you have an oil catch can, or run Meth injection, there is a good chance you have some build up after quite a few miles especially if you drive hard (which tends to cause more oil to find its way into the intake track via PCV, Turbocharger, etc)... And if you have visible build up. either walnut blast or even bring it to a qualified shop who has 1 of a few very pricey machines that use 3 chemicals sprayed in a specific order to soften, breakup and then dissolve and burnup the carbon deposits without pushing it through the engine and risk damaging exhaust valves or your turbo...
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10-15-2020, 03:18 PM | #85 | |
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10-15-2020, 03:19 PM | #86 | |
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Now I'm a piss baby? Crying? Jesus Christ... LOL. OK bud... I didn't cry about his challenge, I accepted it...Im asking you what is wrong with u to come on to a post that has nothing to do with you and just talk shit to me for no apparent reason?...Are you backing up your buddy, or just having a bad day? Or does my general style of writing anger you? Or just enjoy being a tough buy behind a computer screen too?... I'd post a picture of what I look like, If I didn't know that you and the other trolls would just love to continue to trash talk from the safety behind your computer screens... This post is so fucking out of control, and I am absolutely ashamed of myself for allowing those of you who operate at this negative vibration, to drag me down into the sewer with you.. Like they say, "when you wrestle a pig, you both get dirty but the pig likes it."... So I'll recuse myself...You guys have obviously taken over the post, so have a blast, and do whatever you want...Im gonna go back to the X3/X4 forum with the adults.... Thank you to those like F87 Source and others who, skipped the bullshit and added value to the post... Have a great life little boys.
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10-15-2020, 03:34 PM | #87 | |
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I have been crystal clear that running 30% is OK for 4 years, no-where do I say it's because it is diluted enough to not cause damage, that's not something I would claim without evidence and I was stating about the general corrosive property to untreated metals in many fuel pumps...I did assume the OEM fuel pumps were not designed for 100% ethanol, as theres obviously no reason to run that amount of ethanol bc it simply cant handle the volume. But I never stated that it was or wasn't corrosive specifically to the M2 OEM pumps... But thanks for the tool comment, appreciate it... Thanks for your constructive addition to the thread! Have a great one.
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10-15-2020, 03:40 PM | #88 |
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:cla p:
You all should be so proud of yourselves for being so knowledgeable and selflessly taking time out of your days to help your fellow enthusiasts... Bravo...It's funny, it's always the guys that pay people to install parts as easy to install as a downpipe, who always have the most to say... Keep up the good fight fellas!
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