[DKX4///M]

Originally Posted by Commanderwiggin

N55 has the same injectors and same standard Bosch style fuel system. Same fuel lines, etc... Single HPFP is the main difference and it's E85 compatible.


Get with program and stop being dumb.

Also the road trip is welcome but we won't be racing, I'd rather have a go with you in the parking lot.

Show 1 piece of evidence (anything from BMW or what type of metal the impellars are made of and how those materials are impervious to long term damage from high pressure, high temperature ethanol exposure)...Anyone can say anything...Supply something anything to back it up...

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...

[DKX4///M]

Originally Posted by ZM2

Funnily enough, I think this thread is similar to my ethanol drinking habit.

One person shouts, "Don't drink! You'll get fat, hurt your kidneys, have a higher risk of cancer, make bad decisions, and die!" While other people say, "Actually, a little in moderation and with good discretion can be good for you, and fun, and give you more POWER!"

Well, I think that last bit when I drink my ethanol, but at least it's true when my car drinks it!

Actually I'm saying both LOL...I'm saying its great on cars that can handle it or in small amounts that cant...But if you put e50 in a tuned FBO M2 with OEM HPFP/LPFP you will be sputtering around and misfiring until you get rid of the fuel...I know from fucking experience, and anyone on here with that n55 M2 who has maybe accidentally run e50, knows it causes major problems...


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.

[F87source]

Originally Posted by DKX4///M

Show 1 piece of evidence (anything from BMW or what type of metal the impellars are made of and how those materials are impervious to long term damage from high pressure, high temperature ethanol exposure)...Anyone can say anything...Supply something anything to back it up...

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...

I don't like getting into arguments but here's a pdf of the bosch hdp5 hpfp in the og m2: www.motorsport-systems.co.uk › ...PDF
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.

[DKX4///M]

Originally Posted by F87source

I don't like getting into arguments but here's a pdf of the bosch hdp5 hpfp in the og m2: www.motorsport-systems.co.uk › ...PDF
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.

Thank, you...Im shocked someone posted useful information...I appreciate it, being serious...

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)?

[DKX4///M]

Originally Posted by F87source

I don't like getting into arguments but here's a pdf of the bosch hdp5 hpfp in the og m2: www.motorsport-systems.co.uk › ...PDF
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.

I wonder if there is anyway to replace the cam, or someway to increase the lift of the cam lobe on the OEM HPFP to increase flow...Has anyone looked into this?

[Anthony1s]

Originally Posted by DKX4///M

Thank, you...Im shocked someone posted useful information...I appreciate it, being serious...

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)?

So no apology or correction from you for stating that the OEM pump isn't e85 compatible and will corrode??

[F87source]

Originally Posted by DKX4///M

Thank, you...Im shocked someone posted useful information...I appreciate it, being serious...

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)?

No problem.

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.

[F87source]

Originally Posted by DKX4///M

I wonder if there is anyway to replace the cam, or someway to increase the lift of the cam lobe on the OEM HPFP to increase flow...Has anyone looked into this?

B58 cam lifts a bit higher and thus every similar stage 2 hpfp upgrade on the b58 flows more than the n55, but there's no such thing on the n55 because no one wants to spend money on this platform anymore. So the best thing we can get it an upgraded hpfp - which is actually pretty cheap now from what it used to be.


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.

[DKX4///M]

Originally Posted by -Eidos

My god... You're schizophrenic. You need help. I'm prescribing a treatment plan of no bimmerpost posts for three months.

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.

[DKX4///M]

Originally Posted by Anthony1s

So no apology or correction from you for stating that the OEM pump isn't e85 compatible and will corrode??

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...)

[F87source]

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).

[DKX4///M]

Originally Posted by F87source

B58 cam lifts a bit higher and thus every similar stage 2 hpfp upgrade on the b58 flows more than the n55, but there's no such thing on the n55 because no one wants to spend money on this platform anymore. So the best thing we can get it an upgraded hpfp - which is actually pretty cheap now from what it used to be.


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.

Makes sense...

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...

[F87source]

Originally Posted by DKX4///M

When F87source posted technical info saying its safe for e85, I thanked her for posting something constructive...

I mean I'm a him, but you know no problem lol.

[DKX4///M]

Originally Posted by F87source

I mean I'm a him, but you know no problem lol.

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

[F87source]

Originally Posted by DKX4///M

Makes sense...

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...

Yeah it's nice the s58 has really high flowing pumps that can support full e85, since it'll save you alot of money from not having to upgrade. That's pretty much the only real benefit in the stock fuel system imo. I like after market stuff because the new hpfp upgrades have life time warranty, I also like AN fuel lines because it's easy to add in line fuel filters and ethanol sensors. But I do wish it was e85 ready from the factory so I didn't have to spend money on this till later on.

[-Eidos]

Originally Posted by DKX4///M

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.

Disagreed. Debates are cool and all and it has been only words until you insinuated violence here:

Originally Posted by DKX4///M

I promise you you would not have such a loud mouth if you were standing in front of me...God as my witness.

Now you're crying that he'd rather take you to the parking lot? What a piss baby

[F87source]

Originally Posted by DKX4///M

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

No problem lol.

[DKX4///M]

Originally Posted by F87source

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).

I personally don't think the fuel stabilizer is even really necessary, unless the car (with the fuel) has sat for a while...Even then it seems the stabilizer is not much more than a good marketing tool...

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...

[Anthony1s]

Originally Posted by DKX4///M

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...)

It was the original thing I called you out for claiming, then you responded with nonsense arguments, then went and modified your post claiming that. You also specifically stated that running 20-30% is non-corrosive to our OEM pump because it's diluted too much to matter. Which is 100% not true. You are a real tool.

[DKX4///M]

Originally Posted by -Eidos

Disagreed. Debates are cool and all and it has been only words until you insinuated violence here:




Now you're crying that he'd rather take you to the parking lot? What a piss baby

Oh I love debate, and after challenging him to a race, a bit of a more mature way to solve it than a fight, I said I doubt he would speak to me like this to my face...He's been driving me nuts, not debating, but name calling, insulting and just generally driving me nuts, over a post that is very easy to understand...

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.

[DKX4///M]

Originally Posted by Anthony1s

It was the original thing I called you out for claiming, then you responded with nonsense arguments, then went and modified your post claiming that. You also specifically stated that running 20-30% is non-corrosive to our OEM pump because it's diluted too much to matter. Which is 100% not true. You are a real tool.

I assure you any editing I did was not in response to your post. I edited the post I think you are talking about bc I had re-read it and it came across wrong. If I instantly edit my post and you read the thread b4 I finish my editing, you just see the old post.

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.

[DKX4///M]

: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!