running 12 gal 93 and 2 gal e85

sjd6795 · 03-13-2016, 04:58 PM

I was wondering how a stock car without any tune would handle running 12 gallons of pump 93 and 2 gallons of e85. I've got a jb4 coming in the meantime would this hurt anything and would the DME be able to correct things?

iminhell1 · 03-13-2016, 10:18 PM

Fuel trims can adjust 30% before a code is set.

You should be asking if there is any benefit, to which there isn't.

i_love_cars · 03-14-2016, 12:40 AM

agree with IIH. E85 isn't going to gain you anything unless the car is tuned for it. A stock map running stock boost makes E85 worthless.

The Wind Breezes · 03-14-2016, 12:49 AM

That's not very much ethanol and you'll need flash / jb4 regardless.

sjd6795 · 03-14-2016, 03:21 PM

Ok I've decided to wait my jb4 will be here by the end of the week anyways.

sjd6795 · 03-14-2016, 05:18 PM

I've got a vrsf 3.5" catless downpipe and vrsf 3" chargepipe it has 1 10cm meth port coming tuesday or wednesday. I heard the downpipe will throw a code without the jb4 plugged in, should I wait until friday after installing the jb4 to install the downpipe? Also how hard is the downpipe to change on a n55 135i, what are the tools needed?

03-13-2016, 04:58 PM	#1
sjd6795 Enlisted Member 1 Rep 33 Posts Drives: 2011 135i M sport Join Date: Mar 2016 Location: Oregon iTrader: (0)	running 12 gal 93 and 2 gal e85 I was wondering how a stock car without any tune would handle running 12 gallons of pump 93 and 2 gallons of e85. I've got a jb4 coming in the meantime would this hurt anything and would the DME be able to correct things?
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03-13-2016, 10:18 PM	#2
iminhell1 C2H5OH 3915 Rep 2,144 Posts Drives: 2010 SG 135i auto Join Date: May 2015 Location: Darwin, MN iTrader: (1)	Fuel trims can adjust 30% before a code is set. You should be asking if there is any benefit, to which there isn't.
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03-14-2016, 12:40 AM	#3
i_love_cars First Lieutenant 291 Rep 345 Posts Drives: G80 M3 6mt Join Date: Feb 2014 Location: United States iTrader: (0) Garage List 2023 BMW M3 [0.00] 2021 BMW X5 [0.00]	agree with IIH. E85 isn't going to gain you anything unless the car is tuned for it. A stock map running stock boost makes E85 worthless. __________________
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03-14-2016, 12:49 AM	#4
The Wind Breezes Lieutenant Colonel 912 Rep 1,850 Posts Drives: 135i N55 DCT Join Date: Apr 2015 Location: USA iTrader: (0)	That's not very much ethanol and you'll need flash / jb4 regardless.
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03-14-2016, 03:21 PM	#5
sjd6795 Enlisted Member 1 Rep 33 Posts Drives: 2011 135i M sport Join Date: Mar 2016 Location: Oregon iTrader: (0)	Ok I've decided to wait my jb4 will be here by the end of the week anyways.
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03-14-2016, 05:18 PM	#6
sjd6795 Enlisted Member 1 Rep 33 Posts Drives: 2011 135i M sport Join Date: Mar 2016 Location: Oregon iTrader: (0)	I've got a vrsf 3.5" catless downpipe and vrsf 3" chargepipe it has 1 10cm meth port coming tuesday or wednesday. I heard the downpipe will throw a code without the jb4 plugged in, should I wait until friday after installing the jb4 to install the downpipe? Also how hard is the downpipe to change on a n55 135i, what are the tools needed?
	Appreciate 0 Quote