BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
EXXEL Distributions
Post Reply
 
Thread Tools Search this Thread
      03-10-2020, 10:39 PM   #1
Mdriv3r
First Lieutenant
Mdriv3r's Avatar
United_States
149
Rep
392
Posts

Drives: F13 M6
Join Date: Apr 2014
Location: Great Lakes

iTrader: (0)

Garage List
Hey All,

Been discussing e85 on the stock pump with the fuel-it drop in pump. Any suggestions on injector sizes? 1050cc injectors were suggested on another thread.

Im thinking 1050cc injectors, tune, and drop in pump. Any suggestions on pulley and belt size for the ESS VT2 6pk kits?

Looking to get some safe power gains, but mostly would like to be on full e85. I can flash back and forth to 91/93 if needed as well for those trips where e85 is not around.

What do you guy think?
Appreciate 0
      03-10-2020, 10:40 PM   #2
Mdriv3r
First Lieutenant
Mdriv3r's Avatar
United_States
149
Rep
392
Posts

Drives: F13 M6
Join Date: Apr 2014
Location: Great Lakes

iTrader: (0)

Garage List
Background thread discussing e85

Vf Supercharged On E85 https://www.m3post.com/forums/showthread.php?t=1462995
Appreciate 0
      03-27-2020, 12:01 PM   #3
Properstyle
Major
506
Rep
1,385
Posts

Drives: 2011 e90 ZCP m3
Join Date: Jan 2015
Location: Killeen, TX

iTrader: (0)

Quote:
Originally Posted by premo View Post
Hey All,

Been discussing e85 on the stock pump with the fuel-it drop in pump. Any suggestions on injector sizes? 1050cc injectors were suggested on another thread.

Im thinking 1050cc injectors, tune, and drop in pump. Any suggestions on pulley and belt size for the ESS VT2 6pk kits?

Looking to get some safe power gains, but mostly would like to be on full e85. I can flash back and forth to 91/93 if needed as well for those trips where e85 is not around.

What do you guy think?
If you are going to stay stock 625kit pulley and your car doens't have 100k miles on it factory fuel pump willl keep up on a full e85 tune with no other mods out side of 1050cc injectors

If you do the intake breather mod the car will make around 1-1.5 lbs more boost before doing pulley the factory full pump may not keep up with pressure after 4th gear WOT.

any pressure below 45 PSI I would suggest you upgrade to the fuel it Add on pump.

I will say in my own experience I have actually ran on nearly half a tank of 93 while still on my e85 map as I was in a pinch and becuase the car can pull or add 25 percent in fuel trims it was fine to drive on with out stepping in it. I do not suggest you do it on purpose but just fyi in my case with a rk tunes file it worked and drove normal on 93 as welll but I DID NOT Go beyond 3500 rpm.
__________________
2011 E90m3 ESS G2, active auto x pipe, RK FULL E85, DD
2015 X5M Bootmod3, Downpipes, Mineral white-The wifes DD
1994 300zx 2jz Swapped slicktop- The toy/track car
Appreciate 1
Mdriv3r148.50
      08-23-2020, 04:58 PM   #4
gnjax
Enlisted Member
12
Rep
40
Posts

Drives: E92 M3
Join Date: Aug 2019
Location: France

iTrader: (0)

Quote:
Originally Posted by Properstyle View Post
If you are going to stay stock 625kit pulley and your car doens't have 100k miles on it factory fuel pump willl keep up on a full e85 tune with no other mods out side of 1050cc injectors

If you do the intake breather mod the car will make around 1-1.5 lbs more boost before doing pulley the factory full pump may not keep up with pressure after 4th gear WOT.

any pressure below 45 PSI I would suggest you upgrade to the fuel it Add on pump.

I will say in my own experience I have actually ran on nearly half a tank of 93 while still on my e85 map as I was in a pinch and becuase the car can pull or add 25 percent in fuel trims it was fine to drive on with out stepping in it. I do not suggest you do it on purpose but just fyi in my case with a rk tunes file it worked and drove normal on 93 as welll but I DID NOT Go beyond 3500 rpm.
Just wondering what is the intake breather mod ?
Appreciate 1
      09-15-2021, 11:04 PM   #5
W Cole
Major
145
Rep
1,130
Posts

Drives: 2009 M3
Join Date: Dec 2010
Location: Newport Coast, CA

iTrader: (5)

Quote:
Originally Posted by gnjax View Post
Just wondering what is the intake breather mod ?
Me too. What’s the intake breather mod??
Appreciate 0
      09-16-2021, 09:13 AM   #6
Vuu
Astronaut
Vuu's Avatar
514
Rep
732
Posts

Drives: E92 M3
Join Date: Nov 2018
Location: Orange County, CA

iTrader: (7)

Quote:
Originally Posted by gnjax View Post
Just wondering what is the intake breather mod ?
Quote:
Originally Posted by W Cole View Post
Me too. What’s the intake breather mod??
I'm assuming he's talking about putting a breather filter on the intake manifold where the bypass valve connects to.

Some have it plugged up (me) others installed a 3.5 inch breather filter.

I could be wrong, just an educated guess.
__________________
Instagram | @undisclosedm3
"Never think that you are above taking out the trash."
Appreciate 0
      09-16-2021, 10:19 PM   #7
W Cole
Major
145
Rep
1,130
Posts

Drives: 2009 M3
Join Date: Dec 2010
Location: Newport Coast, CA

iTrader: (5)

Quote:
Originally Posted by Vuu View Post
I'm assuming he's talking about putting a breather filter on the intake manifold where the bypass valve connects to.

Some have it plugged up (me) others installed a 3.5 inch breather filter.

I could be wrong, just an educated guess.
Bypass valve = blow off valve?

You have the connection where the bypass valve would ordinarily connect to the intake blocked off and instead have the bypass valve venting to atmosphere? Is that correct?
Appreciate 0
      09-18-2021, 12:03 AM   #8
Vuu
Astronaut
Vuu's Avatar
514
Rep
732
Posts

Drives: E92 M3
Join Date: Nov 2018
Location: Orange County, CA

iTrader: (7)

Quote:
Originally Posted by W Cole View Post
Quote:
Originally Posted by Vuu View Post
I'm assuming he's talking about putting a breather filter on the intake manifold where the bypass valve connects to.

Some have it plugged up (me) others installed a 3.5 inch breather filter.

I could be wrong, just an educated guess.
Bypass valve = blow off valve?

You have the connection where the bypass valve would ordinarily connect to the intake blocked off and instead have the bypass valve venting to atmosphere? Is that correct?
Bypass valve and blow off are two different things. But similar part.

I'm personally running the Vortech MaxRace blow off valve. So it already vents to the atmosphere.

But on a bypass valve, the hose connects from the open end of the BPV to the intake manifold. If you remove that hose, it'll vent to the atmosphere.

I have my intake side blocked off. Some add a filter.
__________________
Instagram | @undisclosedm3
"Never think that you are above taking out the trash."
Appreciate 0
Post Reply

Bookmarks

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 10:30 PM.




m3post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, 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