E85 information!

SGJB135i · 04-08-2013, 04:45 PM

Hey guys, at the moment I have jb4, intakes, catless mid pipes, and I want to try out some e85..I know that the car has to be on map 5, but I just don't know exactly how many gallons to put into the car to mix with 91..I was wondering if anyone can help me out? Thanks alot in advance!

Edogg218 · 04-08-2013, 07:04 PM

I found through experimentation/datalogging that I need to run 50/50 E85 and 93 to maintain ignition advance with my race file on GIAC Stage 2. From my reading on N54Tech, I think you'll have to do the same with the JB.

MGallop · 04-08-2013, 07:32 PM

Are you on ISO w/ flex fuel wires?

if no, put no more than 2-3 gallons MAX and run map 5.

if yes, then you can put in up to 6 gallons and still run map 5

Snertz · 04-08-2013, 07:34 PM

On the JB4, you can get away with going up to a 50/50 mix before needed to get the backend flash. BMS recommends 30-40% E85, so 4.2-5.6 gallons of E85.

JZWBMW · 04-08-2013, 09:53 PM

I found the car would run with E40% without changing the injector constant, but with my tune and the injector constant changed, the car just starts and idles so much smoother ! You can really fell the difference !

I offer much cheaper tuning option for E85 tuning ! I have gotten better results than Jb4 too. Here is comparison with JB4 on the limit and starting to knock a little.

My true ecu flash is Run 1, check the power line from 5k out...

JZW

Mikey135 · 04-09-2013, 11:48 AM

I just downloaded the cobb e85 mix ots map and I was wondering what people were using for their fuel mix. I did 4 gallons of E85 and 8 gallons of 91. I hardly felt a difference over the stage 2+. Any mixes work better for the cobb map?

Top Gon · 04-09-2013, 06:41 PM

I usually put about 3.5 gallons in and it runs beautifully. I tried 4.5 once and it had a hiccup when going wot.

I have jb4 btw, just the g4 board not g5

foofopps · 04-09-2013, 08:10 PM

I put 4 gallons if e85 in with a full tank of 93. My mods are dci, berk mids, berk race and jb4 map 5. I did a couple pulls and have not noticed any difference with the butt dyno. I think it needs more time/pulls to adjust??

Ænema · 04-09-2013, 08:30 PM

Quote:

Originally Posted by Mikey135

I just downloaded the cobb e85 mix ots map and I was wondering what people were using for their fuel mix. I did 4 gallons of E85 and 8 gallons of 91. I hardly felt a difference over the stage 2+. Any mixes work better for the cobb map?

Grab some datalogs and see if there is an issue. The OTS e30 map is a pretty big bump in power over stage 2+

RnmEvo9 · 04-09-2013, 10:32 PM

Quote:

Originally Posted by Ænema

Grab some datalogs and see if there is an issue. The OTS e30 map is a pretty big bump in power over stage 2+

There is a difference, but its really not THAT big of a difference.

JZWBMW · 04-09-2013, 10:43 PM

I got a 35whp difference with my true ecu tune, made a huge difference in the feel for me. My car is 420whp with E30 and its a rocket ship ! Makes 471wtrq or 550 ft-lbs and that is what you really feel with a good E30 tune !

I love ethanol tuning ! I have been doing it for years. I will soon set up a tune to run full E85 with a higher flowing pump. That should allow for some really good power !

JZW

Wescuddles · 04-10-2013, 08:36 PM

^ I don't think OP cares...? He didn't respond the first time you plugged your tune. Nor are you answering his question.

Mikey135 · 04-11-2013, 05:03 PM

Thanks guys I am going to pull some new logs tonight.

Mikey135 · 04-11-2013, 06:44 PM

I pulled some logs and really have no idea how to read them. Anybody mind helping me out? This is first and second gears traction control off. Any help is greatly appreciated.

Spoolin Montego · 04-11-2013, 06:52 PM

Quote:

Originally Posted by RnmEvo9

There is a difference, but its really not THAT big of a difference.

You sure your car is running right? E30 map is at least 40hp over the 2+ map.

Note for manual guys - It will make your clutch slip and kill it, which is why I don't run it.

RnmEvo9 · 04-11-2013, 07:43 PM

Quote:

Originally Posted by Spoolin Montego

You sure your car is running right? E30 map is at least 40hp over the 2+ map.

Note for manual guys - It will make your clutch slip and kill it, which is why I don't run it.

LOL yes its running right. Its probably closer to 20hp based from my experience, but in my opinion, its not a huge difference. A big difference for me is probably closer to like 50hp.

SGJB135i · 04-12-2013, 01:54 AM

Thanks guys for the input, I shall try it out this weekend , thinking about 3.5 gallons!!

04-08-2013, 04:45 PM	#1
SGJB135i Banned 43 Rep 764 Posts Drives: Jet black 135i Join Date: Jul 2012 Location: Cali iTrader: (1)	E85 information! Hey guys, at the moment I have jb4, intakes, catless mid pipes, and I want to try out some e85..I know that the car has to be on map 5, but I just don't know exactly how many gallons to put into the car to mix with 91..I was wondering if anyone can help me out? Thanks alot in advance!
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04-08-2013, 07:04 PM	#2
Edogg218 Second Lieutenant 4 Rep 211 Posts Drives: 2011 335d Join Date: Oct 2011 Location: Portsmouth, NH iTrader: (1)	I found through experimentation/datalogging that I need to run 50/50 E85 and 93 to maintain ignition advance with my race file on GIAC Stage 2. From my reading on N54Tech, I think you'll have to do the same with the JB. __________________ 2009 Z4 35i 2016 Range Rover Sport
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04-08-2013, 07:32 PM	#3
MGallop Major 49 Rep 1,072 Posts Drives: 12' 135i Join Date: Feb 2011 Location: San Jose, California iTrader: (1) Garage List 2012 BMW 135i [10.00]	Are you on ISO w/ flex fuel wires? if no, put no more than 2-3 gallons MAX and run map 5. if yes, then you can put in up to 6 gallons and still run map 5 __________________ Matthew Gallop: '12 N55 Mods: JB4 Flex ISO \| iCarbon DP \| VRSF 5" FMIC \| BMS Intake \| ER Charge Pipe \| Race Axleback \| ST Coils \| Alufelgen CS7's \| iCarbon 3 fin Diffuser \| Blackline LCI \| CarbonFiber Spoiler \| Orion v4 AE's \| 30% tint \| red+blk roundels \| Cyba Scoops \| H-Style front Lip \| WeissLicht LED Smoked Sidemarkers \| Matte Grills \| Coded \| Last edited by MGallop; 04-09-2013 at 02:10 PM..
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04-08-2013, 07:34 PM	#4
Snertz H O O N 86 Rep 694 Posts Drives: ein M! Join Date: Oct 2008 Location: NY iTrader: (9)	On the JB4, you can get away with going up to a 50/50 mix before needed to get the backend flash. BMS recommends 30-40% E85, so 4.2-5.6 gallons of E85.
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04-08-2013, 09:53 PM	#5
JZWBMW 6 Rep 98 Posts Drives: 2008 bmw 135i Join Date: Feb 2013 Location: Boulder Colorado iTrader: (0)	I found the car would run with E40% without changing the injector constant, but with my tune and the injector constant changed, the car just starts and idles so much smoother ! You can really fell the difference ! I offer much cheaper tuning option for E85 tuning ! I have gotten better results than Jb4 too. Here is comparison with JB4 on the limit and starting to knock a little. My true ecu flash is Run 1, check the power line from 5k out... JZW Attached Images
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04-09-2013, 11:48 AM	#6
Mikey135 Enlisted Member 2 Rep 42 Posts Drives: 135i Cobb stage 1 Join Date: Mar 2013 Location: OKC iTrader: (0)	I just downloaded the cobb e85 mix ots map and I was wondering what people were using for their fuel mix. I did 4 gallons of E85 and 8 gallons of 91. I hardly felt a difference over the stage 2+. Any mixes work better for the cobb map?
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04-09-2013, 06:41 PM	#7
Top Gon Bashar 412 Rep 1,120 Posts Drives: 2023 BMW Z4 M40i Join Date: Jun 2010 Location: Bay Area, CA iTrader: (4)	I usually put about 3.5 gallons in and it runs beautifully. I tried 4.5 once and it had a hiccup when going wot. I have jb4 btw, just the g4 board not g5
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04-09-2013, 08:10 PM	#8
foofopps Second Lieutenant 11 Rep 225 Posts Drives: e90 m3 Join Date: Jun 2012 Location: Chicago iTrader: (3)	I put 4 gallons if e85 in with a full tank of 93. My mods are dci, berk mids, berk race and jb4 map 5. I did a couple pulls and have not noticed any difference with the butt dyno. I think it needs more time/pulls to adjust??
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04-09-2013, 10:43 PM	#11
JZWBMW 6 Rep 98 Posts Drives: 2008 bmw 135i Join Date: Feb 2013 Location: Boulder Colorado iTrader: (0)	I got a 35whp difference with my true ecu tune, made a huge difference in the feel for me. My car is 420whp with E30 and its a rocket ship ! Makes 471wtrq or 550 ft-lbs and that is what you really feel with a good E30 tune ! I love ethanol tuning ! I have been doing it for years. I will soon set up a tune to run full E85 with a higher flowing pump. That should allow for some really good power ! JZW Attached Images
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04-10-2013, 08:36 PM	#12
Wescuddles Captain 32 Rep 644 Posts Drives: bsm 135i Join Date: Apr 2012 Location: Vancouver iTrader: (0)	^ I don't think OP cares...? He didn't respond the first time you plugged your tune. Nor are you answering his question. __________________ BSM 2008 135i -VRSF 7" IC -VRSF DP's -n55 mids -BERK race -ER CP -TIAL BOV -BMS DCI -JB4 G5 ISO -ST coils -STOPTECH slotted rotors & pads -SLeK lip Follow me on instagram: wescuddles
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04-11-2013, 05:03 PM	#13
Mikey135 Enlisted Member 2 Rep 42 Posts Drives: 135i Cobb stage 1 Join Date: Mar 2013 Location: OKC iTrader: (0)	Thanks guys I am going to pull some new logs tonight.
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04-12-2013, 01:54 AM	#17
SGJB135i Banned 43 Rep 764 Posts Drives: Jet black 135i Join Date: Jul 2012 Location: Cali iTrader: (1)	Thanks guys for the input, I shall try it out this weekend , thinking about 3.5 gallons!!
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