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chadillac2000 chadillac2000 is offline
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Default Incorporating E85 Into My Daily Life - 02-25-2015, 12:10 PM

I recently installed a set of ***, DCIs and a JB4 (G4 board with latest firmware) into my 535i and naturally started exploring the next step in power. It seems that E85 or Methanol is the next logical way to achieve this. Sure enough this morning on my way to work, I noticed a station nearby selling E85. I'd love to try it out this weekend. From all my research this is what I've gathered the appropriate way to do this would be -- taking into account I currently have a full tank of 93 octane:

- Run tank down until it's approximately 75% full.
- Top off with E85 to achieve proper initial mixture ratio.
- Allow ample time for the fuels to properly mix.
- Enable Map 5 on the JB4.
- Do 2-3 3rd gear pulls til redline to allow the JB4 to learn.
- Enjoy the new power?

Are things actually that simple?

Thanks in advance!


Visit Chadillac2000's 2008 135i Road Warrior Daily Driver Single Turbo Build Thread HERE

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Default 02-25-2015, 12:16 PM

yup it's that simple


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Default 02-25-2015, 12:19 PM

It’s a good idea to measure the ethanol content at the pump since it can range from 70% to 83%

Not a bad idea to get a G5 board and back end flash to run even higher ethanol mixtures


Daily: G30 M550i JB4
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Default 02-25-2015, 12:26 PM

Quote:
Originally Posted by darkiedm4
yup it's that simple
Thought it might be too good to be true without buying other components. Glad to hear it really is this easy.

Quote:
Originally Posted by CHECKERED
Itís a good idea to measure the ethanol content at the pump since it can range from 70% to 83%

Not a bad idea to get a G5 board and back end flash to run even higher ethanol mixtures
Right. I was figuring added to the minimal ethanol content of the 93 I have in there presently, that it would practically even out. How exactly would one go about measuring the content at the pump? And yes, I'll be upgrading to the G5 board, if I ever plan on exceeding this 25-30% mixture I'm going to start with. Just wanted to ensure that the G4 board did indeed have the capability to adjust for E85 on Map 5.


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Default 02-25-2015, 12:37 PM

Quote:
Originally Posted by chadillac2000
How exactly would one go about measuring the content at the pump?
http://www.n54tech.com/forums/showthread.php?t=19916


Daily: G30 M550i JB4
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Default 02-25-2015, 01:17 PM

Thanks for the link. Good information. Looks like I may switch up my plan and grab a 5-gallon gas can and then see exactly what kind of ratio I'm getting at my local E85 station by doing the "baby bottle" test before mixing it with the 93.


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Default 02-25-2015, 09:30 PM

Snapped a picture while I grabbed some this evening. Can't wait for this snow to melt so I can give it a go.



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Default 02-28-2015, 01:42 PM

It'll be a night and day difference in map 5. Don't be discouraged if things don't go smoothly at first (misfires and limp). I had to change coils and plugs right after cause it started idling like a drag car and limping home. Scared the **** out of me. I guess the coils and plugs were on their way out before that night and the higher boost made them finally kick the bucket the same night I tried my first e85 pulls. Ever since replacing them (not hard or expensive) it's been running strong for the past 15K miles.


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Default 03-01-2015, 12:40 PM

Quote:
Originally Posted by kseyfi86
It'll be a night and day difference in map 5. Don't be discouraged if things don't go smoothly at first (misfires and limp). I had to change coils and plugs right after cause it started idling like a drag car and limping home. Scared the **** out of me. I guess the coils and plugs were on their way out before that night and the higher boost made them finally kick the bucket the same night I tried my first e85 pulls. Ever since replacing them (not hard or expensive) it's been running strong for the past 15K miles.
Had pretty much the exact same issue you speak of after installing *** and a JB4. New plugs fixed the misfires so all should be good with E85 but I'll know to look at the coils if things ever start missing as that's the only weak link I haven't addressed. Injectors were changed under warranty about 15k miles ago.


Visit Chadillac2000's 2008 135i Road Warrior Daily Driver Single Turbo Build Thread HERE

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Default 03-01-2015, 01:28 PM

The higher the demand you put on the motor with mods, tuning and octane level, the more you expose old and tired plugs and coils. I would say it's almost mandatory to swap those if you go from stock to DP/E40 and tune. It' a straight forward DIY and saves a lot of aggravation so you can enjoy the performance.
5-6 gallons of E85 topped off with 93 should work fine on map 5.
What the board is referring to is the fact that some gas stations go to e70 instead of e85 during the winter. Hopefully they are honest about what is in the pump, but regardless map 5 will adjust to it, so no big deal.

Longer term I would recommend Fuel-it's Stage 2 LPFP. It flows 450 lph vs the stock 170. Nearly three times as strong! Then you can run e50 or e60 without worrying about pressure. Else just stick with 5-6 gallons per full tank.

e50 = 99 octane
e30 = 97 octane
... roughly.


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Default 03-03-2015, 10:36 AM

Update: Had about a half tank of 93 octane left, so added 4 gallons of E85, then topped off with more 93. Gave it about 15 minutes of normal driving to mix together, then threw it on Map 5 and did about 3 third gear pulls through the RPMs.

WOW. Feels like I added the JB4 all over again. Was a bit damp outside and with DTC off, 2nd gear was practically all tire spin. 3rd gear and higher pulls like a freight train.

Was impressive enough that I'll more than likely be upgrading my LPFP and adding a FMIC come springtime to be able to run full E85 all the time. Cheaper than 93 as well.


Visit Chadillac2000's 2008 135i Road Warrior Daily Driver Single Turbo Build Thread HERE

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Default 03-03-2015, 10:57 AM

Get FMIC w matching charge pipe (metal is stronger than plastic!). It flows better than the stock set-up, so even during winter you get a benefit from smoother torque delivery and improved responsiveness.
ER has a very nice set-up for e60, but there may be others.

PS, you don't need to wait for the gas to mix. It's done when you pour it into the tank.


Sleeper 5 series
Performance: Pro tuned MHD, xHP Stage 3 TCU flash, DCI, AR kittens, ER FMIC & CP, Fuel-It Stage 2 LPFP w ported rail, RB turbos, RB inlets, KW V2, Mfactory LSD
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Default 03-03-2015, 08:27 PM

Got a chance to grab a 40-120MPH acceleration video on my way home starting in third gear. Boost seems be hitting 17psi then tapering off to about 14psi in Map 5. The car is running very strong with even a small amount of E85. I'm very impressed.

https://www.youtube.com/watch?v=nRY4MfH-5LY



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boost junkie boost junkie is offline
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Default 03-04-2015, 06:57 AM

Did you get a log?
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Default 03-04-2015, 09:03 AM

Quote:
Originally Posted by boost junkie
Did you get a log?
I did not. Haven't been able to track down a computer running Windows, but I will soon.


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Default 03-04-2015, 09:28 AM

Acer Aspire One is a good one, compact enough to keep in the car.
I picked up one on eBay, but now that I am on a Cobb custom tune I'm not really using it. Let me know if you are interested. I also have an extra Thinkpad 410 w a terabyte HDD.


Sleeper 5 series
Performance: Pro tuned MHD, xHP Stage 3 TCU flash, DCI, AR kittens, ER FMIC & CP, Fuel-It Stage 2 LPFP w ported rail, RB turbos, RB inlets, KW V2, Mfactory LSD
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Default 03-04-2015, 09:40 AM

Quote:
Originally Posted by chadillac2000
I did not. Haven't been able to track down a computer running Windows, but I will soon.
you can do logs on other platforms using WINE (linux) or the tools in the stickies (osx, ios and android)
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JETmn JETmn is offline
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Default 03-04-2015, 11:21 AM

Get the mobile app for your phone. Sticky at the top of this forum.
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topgun32 topgun32 is offline
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Default 03-04-2015, 09:20 PM

Quote:
Originally Posted by chadillac2000
I recently installed a set of ***, DCIs and a JB4 (G4 board with latest firmware) into my 535i and naturally started exploring the next step in power. It seems that E85 or Methanol is the next logical way to achieve this. Sure enough this morning on my way to work, I noticed a station nearby selling E85. I'd love to try it out this weekend. From all my research this is what I've gathered the appropriate way to do this would be -- taking into account I currently have a full tank of 93 octane:

- Run tank down until it's approximately 75% full.
- Top off with E85 to achieve proper initial mixture ratio.
- Allow ample time for the fuels to properly mix.
- Enable Map 5 on the JB4.
- Do 2-3 3rd gear pulls til redline to allow the JB4 to learn.
- Enjoy the new power?

Are things actually that simple?

Thanks in advance!
True.. things are that simple with E85

I have been doing the same on my MB vehicles since November. both have basic tunes. But adding E85 to every fill up, is just gold at a copper price.

In so cal.. prices are going back up.. but since I usually fill 4 to 5 gallons of E85 to every fill up.. still able to save a few bucks.

My MPG's have only dropped about 1 or 2 MPG overall on the highway. Not a bad penalty to pay for added power.

For now.. i'm good with E30 or so.. no need to take any further.


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Default 03-05-2015, 06:22 AM

Check out the HP Stream 11 on Amazon. It's my new best friend for logging, flashing and updating jb4, for $200!
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chadillac2000 chadillac2000 is offline
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Default 03-05-2015, 08:17 AM

Quote:
Originally Posted by JETmn
Get the mobile app for your phone. Sticky at the top of this forum.
Quote:
Originally Posted by Phlonx
Check out the HP Stream 11 on Amazon. It's my new best friend for logging, flashing and updating jb4, for $200!
Quote:
Originally Posted by Ocean
Acer Aspire One is a good one, compact enough to keep in the car.
I picked up one on eBay, but now that I am on a Cobb custom tune I'm not really using it. Let me know if you are interested. I also have an extra Thinkpad 410 w a terabyte HDD.
Thanks for all the suggestions. What I'll probably be doing here soon is selling the JB4 G4 Board I have now and picking up a JB4 G5 Board with the USB connection that I can route to my iPhone 6 Plus. Plenty big enough in the car and then I can just pick up the app.

The car is still running healthy and very strong.


Visit Chadillac2000's 2008 135i Road Warrior Daily Driver Single Turbo Build Thread HERE

ACF PTE 6062 BB Top Mount ST Kit, Fuel-It! Stage 3 LPFP, Phoenix Racing Port Injection Manifold + RACE FMIC, JB4 + BMS ST E85 PI BEF
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Steve 335i Steve 335i is offline
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Default 03-05-2015, 08:22 AM

Quote:
Originally Posted by chadillac2000
Update: Had about a half tank of 93 octane left, so added 4 gallons of E85, then topped off with more 93. Gave it about 15 minutes of normal driving to mix together, then threw it on Map 5 and did about 3 third gear pulls through the RPMs.

WOW. Feels like I added the JB4 all over again. Was a bit damp outside and with DTC off, 2nd gear was practically all tire spin. 3rd gear and higher pulls like a freight train.

Was impressive enough that I'll more than likely be upgrading my LPFP and adding a FMIC come springtime to be able to run full E85 all the time. Cheaper than 93 as well.

I feel the same way. When I go back to 93 after a mixed tank of E30 it feels like the car is extremely anemic. I just ordered a fuel-it stage 2 along with a FMIC and a back end flash cable so hopefully things will get a little more interesting soon

Glad to hear E85 mixing is working out well for you as well!


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