F30POST
F30POST
2012-2015 BMW 3-Series and 4-Series Forum
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N55 Turbo Engine / Drivetrain / Exhaust Modifications > ☛ MHD Flasher F Series (F2x F3x) discussion ☚
ARMA SPEED
Post Reply
 
Thread Tools Search this Thread
      09-21-2020, 11:01 PM   #4159
thejeremyman9
Colonel
thejeremyman9's Avatar
1272
Rep
2,591
Posts

Drives: 2015 BMW 335i
Join Date: May 2019
Location: Cali

iTrader: (0)

Quote:
Originally Posted by FastF30 View Post
On the first fill up Mixing E doesn't matter about octane 91 or 93... 10%E is a common denominator... 13.7gallons E10 + 2.1 gallons E85 = E20 .... that's what my E calculator says... Your adding 10% more E at a ratio of 85%E ..... Your running E20 if your using that table... or I'm running E30 ... lol...
Well not all pump gas is 10% E... but mostly so in the US, so a safe upper limit assumption. I have no idea where you get 'your adding 10% more E' from unless you mean i am TARGETING 10% more E. I am adding more than double the gallons of E85 than you are - 4.3 instead of 2.1.

You are running ~E20 and i am running ~E20. Here's the table adjusted for your mix ratio.
Attached Images
 
Appreciate 0
      09-21-2020, 11:14 PM   #4160
FastF30
Major
FastF30's Avatar
378
Rep
1,279
Posts

Drives: 2015 335i xdrive Msport Mbrake
Join Date: Dec 2017
Location: Middle of the Road

iTrader: (0)

Quote:
Originally Posted by thejeremyman9 View Post
Well not all pump gas is 10% E... but mostly so in the US, so a safe upper limit assumption. I have no idea where you get 'your adding 10% more E' from unless you mean i am TARGETING 10% more E. I am adding more than double the gallons of E85 than you are - 4.3 instead of 2.1.

You are running ~E20 and i am running ~E20. Here's the table adjusted for your mix ratio.
Okay... that makes sense now... I wish we could run E30... so that BM3 E30 map is a bunch of cheeze on a stock fuel pump... EWG

Last edited by FastF30; 09-21-2020 at 11:25 PM..
Appreciate 0
      09-21-2020, 11:28 PM   #4161
FastF30
Major
FastF30's Avatar
378
Rep
1,279
Posts

Drives: 2015 335i xdrive Msport Mbrake
Join Date: Dec 2017
Location: Middle of the Road

iTrader: (0)

Quote:
Originally Posted by thejeremyman9 View Post
Well not all pump gas is 10% E... but mostly so in the US, so a safe upper limit assumption. I have no idea where you get 'your adding 10% more E' from unless you mean i am TARGETING 10% more E. I am adding more than double the gallons of E85 than you are - 4.3 instead of 2.1.

You are running ~E20 and i am running ~E20. Here's the table adjusted for your mix ratio.
wait a minute ... are you saying your running 4.3 gallons... no way... why is my car so temperamental at E20... 2.1 gallons...? Okay... do a pull into 2nd and 3rd gear... very very curious on fuel pressure.... I'm think'in my fuel pump crashed the first time I did a pull from 1st to 2nd gear cause the E wasn't mixed all the way... then when I did my pulls 3rd and 4th I was on verge of maxing out the HPFP shifting into next gear... I only put in 2.2 gallons exactly... No where close to 4.3 gallons...

Last edited by FastF30; 09-21-2020 at 11:36 PM..
Appreciate 0
      09-21-2020, 11:37 PM   #4162
thejeremyman9
Colonel
thejeremyman9's Avatar
1272
Rep
2,591
Posts

Drives: 2015 BMW 335i
Join Date: May 2019
Location: Cali

iTrader: (0)

Quote:
Originally Posted by FastF30 View Post
wait a minute ... are you saying your running 4.3 gallons... no way... why is my car so temperamental at E20... 2.1 gallons...?
Yes. 4.3 gallons E85 and 11.5 gallons 91 on a full tank. Then maintain that ratio every fillup, so when i fill half a tank i put 2.15 gallons E85 and 5.75 gallons 91... have been doing that since April or so. Never ran a tank of 91 through or anything in that entire time, always targeted exactly the same thing. No idea why you have HPFP issue with 2.1 gallons E85 to a tank...

My boost with stage 2+ E20 map peaks at around 16.5 psi or so. Varies a bit with atmospheric conditions. BM3 E30 map targets 16.8 IIRC, which is very near HPFP limit with E30. That's basically why i can run E30 on the E20 map without a issue.
Appreciate 0
      09-21-2020, 11:47 PM   #4163
FastF30
Major
FastF30's Avatar
378
Rep
1,279
Posts

Drives: 2015 335i xdrive Msport Mbrake
Join Date: Dec 2017
Location: Middle of the Road

iTrader: (0)

Quote:
Originally Posted by thejeremyman9 View Post
Yes. 4.3 gallons E85 and 11.5 gallons 91 on a full tank. Then maintain that ratio every fillup, so when i fill half a tank i put 2.15 gallons E85 and 5.75 gallons 91... have been doing that since April or so. Never ran a tank of 91 through or anything in that entire time, always targeted exactly the same thing. No idea why you have HPFP issue with 2.1 gallons E85 to a tank...

My boost with stage 2+ E20 map peaks at around 16.5 psi or so. Varies a bit with atmospheric conditions. BM3 E30 map targets 16.8 IIRC, which is very near HPFP limit with E30. That's basically why i can run E30 on the E20 map without a issue.
Guess I got a reason to get a new fuel pump... hmmm.... hope this one isn't on it's way out... keeps pressure on 95map no problem... hmmm ... actually a little dip couple 100's worse case ... no real difference than the 93 map I first ran....

Wondering if the 93octane +boostane is the limiting factor... I am getting excellent results but very very fine tuning to achieve zero timing issues.. very temperamental pump... or?????

going to flush this tank out...right now it's at 6oz on the tank of boostane.. then I'll remix the E20.... and check logs... this may take a while since I don't drive it much... hmmm

Last edited by FastF30; 09-22-2020 at 12:30 AM..
Appreciate 0
      09-23-2020, 09:45 PM   #4164
Pussiwillow
Private First Class
39
Rep
155
Posts

Drives: Alpine white 2014 335i msport
Join Date: Aug 2020
Location: Arizona

iTrader: (0)

Since we're on topic a touch about octane
Just found AV gas 100 octane for 4.99$ a gallon at a local station; which is cheap, it's not race fuel, but aviation fuel
Would this be suffice for modern cars? I used to run 100% av gas in my 79 trans am in high school ha

Doesn't say leaded or unleaded
But I'm catless
I'm debating running a 100 octane tune at this point at that price point lol
Cheap
Appreciate 0
      09-23-2020, 09:48 PM   #4165
thejeremyman9
Colonel
thejeremyman9's Avatar
1272
Rep
2,591
Posts

Drives: 2015 BMW 335i
Join Date: May 2019
Location: Cali

iTrader: (0)

Quote:
Originally Posted by Pussiwillow View Post
Since we're on topic a touch about octane
Just found AV gas 100 octane for 4.99$ a gallon at a local station; which is cheap, it's not race fuel, but aviation fuel
Would this be suffice for modern cars? I used to run 100% av gas in my 79 trans am in high school ha
Is it leaded? You really need to make sure it has no additives that are not safe for O2 sensors, cat (if equipped), or even fuel system components.
Appreciate 1
FastF30378.00

      09-23-2020, 09:48 PM   #4166
Pussiwillow
Private First Class
39
Rep
155
Posts

Drives: Alpine white 2014 335i msport
Join Date: Aug 2020
Location: Arizona

iTrader: (0)

Sorry edited my post before I saw you reply ^^

It doesn't specify
I'm catless tho

Saw a mustang filling up earlier and was like oh, didn't know that had that. Got me thinking
Appreciate 0
      09-23-2020, 09:57 PM   #4167
FastF30
Major
FastF30's Avatar
378
Rep
1,279
Posts

Drives: 2015 335i xdrive Msport Mbrake
Join Date: Dec 2017
Location: Middle of the Road

iTrader: (0)

Quote:
Originally Posted by thejeremyman9 View Post
You really need to make sure it has no additives that are not safe for O2 sensors(if equipped), or even fuel system components.
Quote:
Originally Posted by Pussiwillow View Post
Sorry edited my post before I saw you reply ^^

It doesn't specify
I'm catless tho

Saw a mustang filling up earlier and was like oh, didn't know that had that. Got me thinking
make sure... you don't need issues... I'm just so lucky I filled up just for E20 and not E30... would of been sucking it out of a hose... lol...

P.s. car ripped today... so much fun.... saw I guy with a M3 today at the grocery store... asked if he wanted to race... talked a little... he was stock and told him I had E20 and he said "Nope"... lol...
Appreciate 0
      09-23-2020, 11:10 PM   #4168
thejeremyman9
Colonel
thejeremyman9's Avatar
1272
Rep
2,591
Posts

Drives: 2015 BMW 335i
Join Date: May 2019
Location: Cali

iTrader: (0)

Quote:
Originally Posted by FastF30 View Post
make sure... you don't need issues... I'm just so lucky I filled up just for E20 and not E30... would of been sucking it out of a hose... lol...

P.s. car ripped today... so much fun.... saw I guy with a M3 today at the grocery store... asked if he wanted to race... talked a little... he was stock and told him I had E20 and he said "Nope"... lol...
Yup the ethanol tunes are addicting... especially coming from crappy 91. I would just feel underpowered if i ever had to go back to 91. I almost want to hit up the guy with the E85 tune since hes in SoCal and line up with him... see how that E85 tune compares to OTS E20.
Appreciate 0
      09-23-2020, 11:16 PM   #4169
FastF30
Major
FastF30's Avatar
378
Rep
1,279
Posts

Drives: 2015 335i xdrive Msport Mbrake
Join Date: Dec 2017
Location: Middle of the Road

iTrader: (0)

Quote:
Originally Posted by thejeremyman9 View Post
Yup the ethanol tunes are addicting... especially coming from crappy 91. I would just feel underpowered if i ever had to go back to 91. I almost want to hit up the guy with the E85 tune since hes in SoCal and line up with him... see how that E85 tune compares to OTS E20.
Please Please do it...
Appreciate 0
      09-23-2020, 11:17 PM   #4170
FastF30
Major
FastF30's Avatar
378
Rep
1,279
Posts

Drives: 2015 335i xdrive Msport Mbrake
Join Date: Dec 2017
Location: Middle of the Road

iTrader: (0)

Quote:
Originally Posted by thejeremyman9 View Post
Yup the ethanol tunes are addicting... especially coming from crappy 91. I would just feel underpowered if i ever had to go back to 91. I almost want to hit up the guy with the E85 tune since hes in SoCal and line up with him... see how that E85 tune compares to OTS E20.
If he rips you bad.... I'm definitely doing it... Lol....
Appreciate 0
      09-23-2020, 11:33 PM   #4171
Pussiwillow
Private First Class
39
Rep
155
Posts

Drives: Alpine white 2014 335i msport
Join Date: Aug 2020
Location: Arizona

iTrader: (0)

Quote:
Originally Posted by FastF30 View Post
Quote:
Originally Posted by thejeremyman9 View Post
You really need to make sure it has no additives that are not safe for O2 sensors(if equipped), or even fuel system components.
Quote:
Originally Posted by Pussiwillow View Post
Sorry edited my post before I saw you reply ^^

It doesn't specify
I'm catless tho

Saw a mustang filling up earlier and was like oh, didn't know that had that. Got me thinking
make sure... you don't need issues... I'm just so lucky I filled up just for E20 and not E30... would of been sucking it out of a hose... lol...

P.s. car ripped today... so much fun.... saw I guy with a M3 today at the grocery store... asked if he wanted to race... talked a little... he was stock and told him I had E20 and he said "Nope"... lol...
Though there are multiple types of leaded aviation fuel, avgas most commonly refers to "100LL" fuel (LL stands for low lead). Lead is added to avgas in the form of tetraethyl lead (TEL) because it raises fuel octane and prevents engine knock and other wear in high-performance engines.

So all avgas is leaded from what I see


Avgas is the only remaining lead-containing transportation fuel. Lead in avgas prevents damaging engine knock, or detonation, that can result in a sudden engine failure. Lead is a toxic substance that can be inhaled or absorbed in the bloodstream, and the FAA and EPA and industry are partnering to remove it from avgas


Even tho I'm catless, leaded fuel can still be damaging to the o2 sensors?
Appreciate 0
      09-23-2020, 11:48 PM   #4172
thejeremyman9
Colonel
thejeremyman9's Avatar
1272
Rep
2,591
Posts

Drives: 2015 BMW 335i
Join Date: May 2019
Location: Cali

iTrader: (0)

Quote:
Originally Posted by Pussiwillow View Post
Though there are multiple types of leaded aviation fuel, avgas most commonly refers to "100LL" fuel (LL stands for low lead). Lead is added to avgas in the form of tetraethyl lead (TEL) because it raises fuel octane and prevents engine knock and other wear in high-performance engines.

So all avgas is leaded from what I see


Avgas is the only remaining lead-containing transportation fuel. Lead in avgas prevents damaging engine knock, or detonation, that can result in a sudden engine failure. Lead is a toxic substance that can be inhaled or absorbed in the bloodstream, and the FAA and EPA and industry are partnering to remove it from avgas


Even tho I'm catless, leaded fuel can still be damaging to the o2 sensors?
I believe so, but im sure some research will confirm. Also as you alluded to the fumes could be awful and toxic. I wouldnt run it on the street.
Appreciate 0
      09-23-2020, 11:52 PM   #4173
Pussiwillow
Private First Class
39
Rep
155
Posts

Drives: Alpine white 2014 335i msport
Join Date: Aug 2020
Location: Arizona

iTrader: (0)

Quote:
Originally Posted by thejeremyman9 View Post
Quote:
Originally Posted by Pussiwillow View Post
Though there are multiple types of leaded aviation fuel, avgas most commonly refers to "100LL" fuel (LL stands for low lead). Lead is added to avgas in the form of tetraethyl lead (TEL) because it raises fuel octane and prevents engine knock and other wear in high-performance engines.

So all avgas is leaded from what I see


Avgas is the only remaining lead-containing transportation fuel. Lead in avgas prevents damaging engine knock, or detonation, that can result in a sudden engine failure. Lead is a toxic substance that can be inhaled or absorbed in the bloodstream, and the FAA and EPA and industry are partnering to remove it from avgas


Even tho I'm catless, leaded fuel can still be damaging to the o2 sensors?
I believe so, but im sure some research will confirm. Also as you alluded to the fumes could be awful and toxic. I wouldnt run it on the street.
I'm here for a good time not a long time

In all seriousness
I also agree about the fumes, not the best thing to be inhaling, I guess I'll stick to my unleaded race fuel at the other station for now :/
Thought I scored and found a really good deal lol
Appreciate 0
      09-24-2020, 06:44 AM   #4174
5w20
Private
21
Rep
81
Posts

Drives: Bmw 435i
Join Date: Mar 2019
Location: Houston

iTrader: (0)

I always mix 10gal of 93oct to 4gal of e85. Iíve been doing it since 12/xx/19 without any issues so far. I donít ever test the E content, but Iíve pumped at probably 7-8 different fueling stations.
Appreciate 0
      09-24-2020, 10:52 AM   #4175
thejeremyman9
Colonel
thejeremyman9's Avatar
1272
Rep
2,591
Posts

Drives: 2015 BMW 335i
Join Date: May 2019
Location: Cali

iTrader: (0)

Quote:
Originally Posted by 5w20 View Post
I always mix 10gal of 93oct to 4gal of e85. Iíve been doing it since 12/xx/19 without any issues so far. I donít ever test the E content, but Iíve pumped at probably 7-8 different fueling stations.
That's about a safe upper limit, especially if your E85 is not actually 85% as it is in many parts of the country.

What map are you running with that?
Appreciate 0
      09-24-2020, 07:08 PM   #4176
5w20
Private
21
Rep
81
Posts

Drives: Bmw 435i
Join Date: Mar 2019
Location: Houston

iTrader: (0)

Quote:
Originally Posted by thejeremyman9 View Post
That's about a safe upper limit, especially if your E85 is not actually 85% as it is in many parts of the country.

What map are you running with that?
I live in the south so I doubt Iíve pumped really low E content because we normally donít see a winter blend here; Bm3 OTS e30.
Appreciate 0
      09-28-2020, 07:06 AM   #4177
F20_M135i
Second Lieutenant
France
31
Rep
246
Posts

Drives: bmw f20 M135i Xdrive PWG
Join Date: Mar 2020
Location: FRANCE

iTrader: (0)

Post

Hello,

I will soon be installing my WAGNER COMPETITION 2 radiator as well as the reinforced "Charge pipe" and "Intlet pipe".

I already have the M PERFORMANCE exhaust and the BMC sport air filter in place.

Can I install MHD stage 2 directly? or do you have to go through stage 1 first and drive a little before?

Obliged to have the "DOWN PIPE" for the stage 2+ of MHD?

Thank you in advance for your valuable advice.

Appreciate 0
      09-28-2020, 11:29 AM   #4178
thejeremyman9
Colonel
thejeremyman9's Avatar
1272
Rep
2,591
Posts

Drives: 2015 BMW 335i
Join Date: May 2019
Location: Cali

iTrader: (0)

Quote:
Originally Posted by F20_M135i View Post
Hello,

I will soon be installing my WAGNER COMPETITION 2 radiator as well as the reinforced "Charge pipe" and "Intlet pipe".

I already have the M PERFORMANCE exhaust and the BMC sport air filter in place.

Can I install MHD stage 2 directly? or do you have to go through stage 1 first and drive a little before?

Obliged to have the "DOWN PIPE" for the stage 2+ of MHD?

Thank you in advance for your valuable advice.

Once you install the CP and IC, you can go straight to stage 2. There is no need to do stage 1 first unless you want to do it for fun/testing/data.

The MHD recommendation is to have a DP for stage 2+, yes. Some people run stage 2+ without a DP but it is not recommended. The difference in the tune itself from stage 2 is not substantial in itself, so i would just wait until you get the DP and go from 2 to 2+.
Appreciate 1
      09-28-2020, 09:00 PM   #4179
wildacex187
Private First Class
10
Rep
126
Posts

Drives: 335xi stock
Join Date: Jan 2014
Location: nyc

iTrader: (2)

Quote:
Originally Posted by thejeremyman9 View Post
Once you install the CP and IC, you can go straight to stage 2. There is no need to do stage 1 first unless you want to do it for fun/testing/data.

The MHD recommendation is to have a DP for stage 2+, yes. Some people run stage 2+ without a DP but it is not recommended. The difference in the tune itself from stage 2 is not substantial in itself, so i would just wait until you get the DP and go from 2 to 2+.
what about running 2+ with the oem dp box checked?
__________________
stock
Appreciate 0
      09-28-2020, 10:13 PM   #4180
thejeremyman9
Colonel
thejeremyman9's Avatar
1272
Rep
2,591
Posts

Drives: 2015 BMW 335i
Join Date: May 2019
Location: Cali

iTrader: (0)

Quote:
Originally Posted by wildacex187 View Post
what about running 2+ with the oem dp box checked?
That's not what the OEM DP Box is for. That option only affects the CEL for cat monitor - if you uncheck the box, it disables that CEL/code. Has no impact on the tune.
Appreciate 0
Post Reply

Bookmarks

Tags
flash, mhd, tune

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 01:58 AM.




f30post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST