jb4 e85 questions

Turbopat · 05-12-2013, 11:37 PM

Im currently running jb4 g5 with dci on map 1. At first I thought it was plenty of power and now I want more. How does this who e85 thing work with the jb4. I did some research and read you have to use map5 with a small amount of e85 then log it, send it to terry/diagnose the log and go from there.

Am I okay using e85 on map 5 with just dci and jb4?
How much e85 to start?
Any precautions?

Any advice/input would be appreciated!

marv85 · 05-12-2013, 11:38 PM

depending how your timing looks on map1, E85 can make considerably more power.

I would go for E30 (30% ethanol mix) and yes you can use map5

Lankster · 05-12-2013, 11:56 PM

Personally, I did 30% E85 70% ACN 91.

You will see boost usually around 14-15 PSI after using this, and it definitely has a wow factor. At least it did for me since Im AWD. Definitely log after each fill up. Make sure when you go to the gas station that you have like 20 miles left until empty, this way is easiest so you dont have to calculate what you have in the tank, with what you need to fill up with. If your HPFP is on its way out (I notice you have an '07, so do I and mine is on its way out but wont throw codes at stock levels yet), then going E85 blend will most likely keep throwing limp mode (FML).

I like to fill up with straight 91 and Techron every 4-5 fill ups when using E85 to flush the system. Completely unnecessary some say, but I do it anyways because it makes me feel good haha.

Dont know if I forgot anything... Go to my profile and look up my threads and you will see a few E85 question threads

MasterWang · 05-13-2013, 12:17 AM

I only have Jb4 G5 ISO and DCI.
I have been running 30% e85 and 70% 91oct.
Sent logs to Terry and he said everything looked okay. He even said I could use a bit more if I wanted to.

Every car is different so don't assume your car would be fine though.

With 30% e85 I've been hitting 17psi using map 5.

dreidurtyfive · 05-13-2013, 12:52 PM

are you guys running map5 and e85 mixtures with stock cats? Does any one know if running higher concentration of e85 will burn out the factory cats faster?

335speed · 05-13-2013, 01:01 PM

Quote:

Originally Posted by dreidurtyfive

are you guys running map5 and e85 mixtures with stock cats? Does any one know if running higher concentration of e85 will burn out the factory cats faster?

I have stock cats and it runs just fine, have no idea about wear and tear on them tho

MaxPow3r · 05-13-2013, 01:22 PM

With downpipes, DCI and upgraded intercooler, I'm seeing 18.2 commanded on Map5. I run about a 30-40% mix of e85 to 93.

Lankster · 05-13-2013, 01:49 PM

Quote:

Originally Posted by dreidurtyfive

are you guys running map5 and e85 mixtures with stock cats? Does any one know if running higher concentration of e85 will burn out the factory cats faster?

This is why I fill up with straight 91 every 4-5 tanks to help preserve things.

Doubt it helps, and I plan on going full catless in the future, but until then

oshusttoley · 05-13-2013, 04:23 PM

Run meth. Simpler and don't have to worry about finding a gas station lol

Jnat · 05-13-2013, 06:09 PM

Where are you getting your E85 in NJ out of curiosity.

Pete Schweaty · 05-13-2013, 08:53 PM

1) yes. Perfectly fine with just e JB4 and DCI.
2) start with 4-5 gallons
3) addiction.

oshusttoley · 05-13-2013, 10:33 PM

Quote:

Originally Posted by jnat

Where are you getting your E85 in NJ out of curiosity.

Newark international airport

jrsniper12453 · 05-14-2013, 03:06 AM

Quote:

Originally Posted by oshusttoley

Run meth. Simpler and don't have to worry about finding a gas station lol

Run both!!

Jnat · 05-14-2013, 05:34 AM

That's where I went also.

robc1976 · 05-14-2013, 06:57 AM

Quote:

Originally Posted by MaxPow3r

With downpipes, DCI and upgraded intercooler, I'm seeing 18.2 commanded on Map5. I run about a 30-40% mix of e85 to 93.

Map 5 only tunes to 17 psi.

robc1976 · 05-14-2013, 06:58 AM

Quote:

Originally Posted by oshusttoley

Run meth. Simpler and don't have to worry about finding a gas station lol

Run both and have more power and better timing curve wich is safer

MasterWang · 05-14-2013, 07:29 AM

Quote:

Originally Posted by robc1976

Quote:

Originally Posted by MaxPow3r

With downpipes, DCI and upgraded intercooler, I'm seeing 18.2 commanded on Map5. I run about a 30-40% mix of e85 to 93.

Map 5 only tunes to 17 psi.

I thought G5 boosted up to 18.5 while G4 was limited to 17?

Turbopat · 05-14-2013, 07:32 PM

Im liking the responses so far, very informative. What do you guys think is better meth or e85? Im a little scared about the whole e85 just because well it is e85 and our cars were not designed for it. Regardless I should log before running e85? To make sure things are in sync?

n54gte · 05-14-2013, 08:14 PM

Quote:

Originally Posted by Turbopat

Im liking the responses so far, very informative. What do you guys think is better meth or e85? Im a little scared about the whole e85 just because well it is e85 and our cars were not designed for it. Regardless I should log before running e85? To make sure things are in sync?

you should be more scared of meth than e85.

WickedB · 05-14-2013, 08:15 PM

Quote:

Originally Posted by Turbopat

Im liking the responses so far, very informative. What do you guys think is better meth or e85? Im a little scared about the whole e85 just because well it is e85 and our cars were not designed for it. Regardless I should log before running e85? To make sure things are in sync?

In sync?

It's easy, get E85, mash gas pedal =

And LOTS of people have been running 30-40% E85 for months now with no ill effects; LONG term as in years may prove to be another story.. but a risk I'm will ing to take personally. Besides, if it breaks... I"ll fix it .. no biggie.. nature of the beast anyway with cars... just my .02

WickedB · 05-14-2013, 08:17 PM

Quote:

Originally Posted by jordan313

you should be more scared of meth than e85.

Nothing to be scared about w/ meth if done right (e.g. don't use your windshield washer bottle, use a dedicated trunk tank).

oshusttoley · 05-15-2013, 01:29 PM

Quote:

Originally Posted by robc1976

Run both and have more power and better timing curve wich is safer

i have lol. i love it but my clutch started to slip. too much torque

05-12-2013, 11:37 PM	#1
Turbopat Second Lieutenant 13 Rep 225 Posts Drives: Black on black e92 Join Date: Jul 2012 Location: Chicago iTrader: (0)	jb4 e85 questions Im currently running jb4 g5 with dci on map 1. At first I thought it was plenty of power and now I want more. How does this who e85 thing work with the jb4. I did some research and read you have to use map5 with a small amount of e85 then log it, send it to terry/diagnose the log and go from there. Am I okay using e85 on map 5 with just dci and jb4? How much e85 to start? Any precautions? Any advice/input would be appreciated!
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05-12-2013, 11:38 PM	#2
marv85 Colonel 70 Rep 2,626 Posts Drives: '07 E92 335i MT Join Date: Jun 2010 Location: Bay Area iTrader: (7)	depending how your timing looks on map1, E85 can make considerably more power. I would go for E30 (30% ethanol mix) and yes you can use map5 __________________ '07 E92 335i 6MT- HP650, inlets/outlets, ER FMIC, VRSF CP, LPFP stg2, CSF rad, 'is Aux rad, ER OC, Ohlins, M control arms, eibach front sway bar. '05 C55 AMG SOLD - '22 Tesla M3P \| '10 E92 335i M, 6MT COBB, FBO, st2 LPFP, Mfactory LSD \| '07 E90 335i, PTF COBB E50, FBO, HFS4
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05-12-2013, 11:56 PM	#3
Lankster Sigma Alpha Epsilon 38 Rep 425 Posts Drives: 2007 335xi Join Date: Apr 2012 Location: Encinitas iTrader: (1)	Personally, I did 30% E85 70% ACN 91. You will see boost usually around 14-15 PSI after using this, and it definitely has a wow factor. At least it did for me since Im AWD. Definitely log after each fill up. Make sure when you go to the gas station that you have like 20 miles left until empty, this way is easiest so you dont have to calculate what you have in the tank, with what you need to fill up with. If your HPFP is on its way out (I notice you have an '07, so do I and mine is on its way out but wont throw codes at stock levels yet), then going E85 blend will most likely keep throwing limp mode (FML). I like to fill up with straight 91 and Techron every 4-5 fill ups when using E85 to flush the system. Completely unnecessary some say, but I do it anyways because it makes me feel good haha. Dont know if I forgot anything... Go to my profile and look up my threads and you will see a few E85 question threads __________________ Forum Bible http://www.albinoblacksheep.com/flash/posting JB4, BMS DCI, Dimisa 4" tips, VMR 710 Matt Black, Plasti-Dip Mod
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05-13-2013, 12:17 AM	#4
MasterWang Captain 135 Rep 925 Posts Drives: F06 M6 Join Date: Jan 2011 Location: Overland Park, KS iTrader: (2)	I only have Jb4 G5 ISO and DCI. I have been running 30% e85 and 70% 91oct. Sent logs to Terry and he said everything looked okay. He even said I could use a bit more if I wanted to. Every car is different so don't assume your car would be fine though. With 30% e85 I've been hitting 17psi using map 5.
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05-13-2013, 12:52 PM	#5
dreidurtyfive New Member 1 Rep 20 Posts Drives: 08' 335i Join Date: Oct 2012 Location: Scottsdale AZ iTrader: (0)	are you guys running map5 and e85 mixtures with stock cats? Does any one know if running higher concentration of e85 will burn out the factory cats faster?
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05-13-2013, 01:22 PM	#7
MaxPow3r Twin Turbo User 1 Rep 39 Posts Drives: 2009 G8 GT TT -> 08 E90 Join Date: Jul 2011 Location: STL iTrader: (1)	With downpipes, DCI and upgraded intercooler, I'm seeing 18.2 commanded on Map5. I run about a 30-40% mix of e85 to 93. __________________ New: 08 E90 Old: 09 G8 GT Twin Turbo'd by ME: 11.6 @ 125
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05-13-2013, 04:23 PM	#9
oshusttoley Captain 45 Rep 676 Posts Drives: 2008 335i sedan Join Date: Mar 2012 Location: New Jersey iTrader: (0)	Run meth. Simpler and don't have to worry about finding a gas station lol __________________ // JB4 ISO // Running Meth // Full FBO // E85 user //
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05-13-2013, 06:09 PM	#10
Jnat DisplacementReplacement 399 Rep 1,097 Posts Drives: 2020 X3M Join Date: Sep 2012 Location: Jersey Shore iTrader: (0)	Where are you getting your E85 in NJ out of curiosity.
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05-13-2013, 08:53 PM	#11
Pete Schweaty Captain 39 Rep 639 Posts Drives: 2014 750li Join Date: Jun 2011 Location: MD iTrader: (0)	1) yes. Perfectly fine with just e JB4 and DCI. 2) start with 4-5 gallons 3) addiction.
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05-14-2013, 05:34 AM	#14
Jnat DisplacementReplacement 399 Rep 1,097 Posts Drives: 2020 X3M Join Date: Sep 2012 Location: Jersey Shore iTrader: (0)	That's where I went also.
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05-14-2013, 07:32 PM	#18
Turbopat Second Lieutenant 13 Rep 225 Posts Drives: Black on black e92 Join Date: Jul 2012 Location: Chicago iTrader: (0)	Im liking the responses so far, very informative. What do you guys think is better meth or e85? Im a little scared about the whole e85 just because well it is e85 and our cars were not designed for it. Regardless I should log before running e85? To make sure things are in sync?
	Appreciate 0 Quote