E85 with JB4

snaimpally · 07-08-2014, 10:08 PM

Found a Valero near my house that sells E85. Its a pain to get in and out of this gas station due to the location, but its very close so I just have go there during off-peak times.

I'm on JB4 map 5 and did an approx 60/40 mix of 93 octane/E85. Car pulls very nicely. Is there any "ideal" ratio of 93 to E85? Any other suggestions for running E85 with the JB4?

BOOSTHOT · 07-08-2014, 10:34 PM

That's the same mix I run, works well for me.

turbo_chris · 07-09-2014, 06:26 AM

Do you have flex fuel wires? I think 30% is what you can run without the wires. I run 50% (8 gallons) on mine with the flex fuel wires. Be sure to "teach in" map 5. Do 3-5 pulls in 3rd gear. Start at 2500rpm and take it to redline. You will see boost climb each time you do it until you max out around 18psi.

JETmn · 07-09-2014, 09:56 AM

20% max without FF wires. I run E40 also and I hit the full 18psi map 5 will provide. E30 is probably all we need, but I go a little higher in case I get some E85 with lower content. Even though it says E85 it is never actually E85. Many places are E7x.

snaimpally · 07-09-2014, 11:43 PM

I don't have flex fuel wires. What do those do and where can I get them?

Knobi · 07-09-2014, 11:58 PM

Quote:

Originally Posted by snaimpally

I don't have flex fuel wires. What do those do?

You should not be running 40% without flex fuel wires...
They are used to bias the fuel pressure signal, tricking the DME into thinking its injecting less fuel than it actually is.
20% mix is fine without the wires though

Knobi · 07-10-2014, 12:03 AM

Get them for $25 at burgertuning.com

snaimpally · 07-10-2014, 08:28 AM

Quote:

Originally Posted by Knobi

Get them for $25 at burgertuning.com

Cool - thanks.

Jsoboti · 07-10-2014, 09:12 PM

Just put 6.5 gallons mixed with 93 to make a full tank. How long before I should "feel the effects"

Yes I have FF wires

Narcosis · 07-10-2014, 09:28 PM

Quote:

Originally Posted by Jsoboti

Just put 6.5 gallons mixed with 93 to make a full tank. How long before I should "feel the effects"

Yes I have FF wires

Read turbo_chris's response above.

Jsoboti · 07-10-2014, 10:39 PM

Quote:

Originally Posted by Narcosis

Quote:

Originally Posted by Jsoboti

Just put 6.5 gallons mixed with 93 to make a full tank. How long before I should "feel the effects"

Yes I have FF wires

Read turbo_chris's response above.

Pretty sure he's just talking about adapting map 5 to your car once the E85 is established

Dannyrio17 · 07-11-2014, 12:54 AM

just ordered my ff wires.. excitedd ! is there a significant diff in power from using 93gas, map 5 to now being able to add 40/50% e85 ?

JETmn · 07-11-2014, 08:18 AM

Yes, difference is as great as going from stock to stage 1. I just got some bad E85 though and it is pulling timing. Time to figure out how to burn up this tank of gas fast...

turbo_chris · 07-11-2014, 08:44 AM

Quote:

Originally Posted by Jsoboti

Just put 6.5 gallons mixed with 93 to make a full tank. How long before I should "feel the effects"

Yes I have FF wires

You will feel the effects as soon as you teach in map 5. When you switch to map 5 it limits boost to 11-12psi until it is taught in. Keep in mind that every time you switch out of map 5 it resets back to 11psi and will need another 3-5 pulls to learn what boost/timing are safe.

Quote:

Originally Posted by JETmn

Yes, difference is as great as going from stock to stage 1. I just got some bad E85 though and it is pulling timing. Time to figure out how to burn up this tank of gas fast...

Damn that sucks. The E85 station near me is sketchy and I had a bad tank recently. There is a BP 15 min from my job, but it's completely out of my way logistically. I wish they would open more E85 stations in the south east.

07-08-2014, 10:08 PM	#1
snaimpally Major 136 Rep 1,192 Posts Drives: 2011 335i MT Join Date: Mar 2014 Location: Austin, TX iTrader: (9) Garage List 2011 BMW 335i [0.00]	E85 with JB4 Found a Valero near my house that sells E85. Its a pain to get in and out of this gas station due to the location, but its very close so I just have go there during off-peak times. I'm on JB4 map 5 and did an approx 60/40 mix of 93 octane/E85. Car pulls very nicely. Is there any "ideal" ratio of 93 to E85? Any other suggestions for running E85 with the JB4? __________________ PTF Map, Pure Turbo Stage 1, GFB DV+, Mfactory LSD, AA FMIC, B12 Pro Kit, M3 FCA, AR DP and Dynavin N6, Mosconi AS100.4, AS100.4, AS200.2, Micro Precision tweeters & woofers, Esotar2 1200
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07-08-2014, 10:34 PM	#2
BOOSTHOT Private First Class 6 Rep 121 Posts Drives: SG E90 335i Join Date: May 2014 Location: West Covina iTrader: (0)	That's the same mix I run, works well for me.
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07-09-2014, 06:26 AM	#3
turbo_chris Second Lieutenant 51 Rep 260 Posts Drives: 11 E90 335D, 13 X5D Join Date: Jan 2014 Location: NC iTrader: (0)	Do you have flex fuel wires? I think 30% is what you can run without the wires. I run 50% (8 gallons) on mine with the flex fuel wires. Be sure to "teach in" map 5. Do 3-5 pulls in 3rd gear. Start at 2500rpm and take it to redline. You will see boost climb each time you do it until you max out around 18psi. __________________ 11 335D - BPC stage 2.5 13 X5D - Family hauler 01 Cummins 3500 - 1100 torques
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07-09-2014, 09:56 AM	#4
JETmn Lieutenant Colonel 245 Rep 1,595 Posts Drives: 2011 335i xDrive Msport Join Date: Apr 2013 Location: Orlando iTrader: (0) Garage List 2011 335Xi [0.00]	20% max without FF wires. I run E40 also and I hit the full 18psi map 5 will provide. E30 is probably all we need, but I go a little higher in case I get some E85 with lower content. Even though it says E85 it is never actually E85. Many places are E7x.
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07-09-2014, 11:43 PM	#5
snaimpally Major 136 Rep 1,192 Posts Drives: 2011 335i MT Join Date: Mar 2014 Location: Austin, TX iTrader: (9) Garage List 2011 BMW 335i [0.00]	I don't have flex fuel wires. What do those do and where can I get them? __________________ PTF Map, Pure Turbo Stage 1, GFB DV+, Mfactory LSD, AA FMIC, B12 Pro Kit, M3 FCA, AR DP and Dynavin N6, Mosconi AS100.4, AS100.4, AS200.2, Micro Precision tweeters & woofers, Esotar2 1200 Last edited by snaimpally; 07-09-2014 at 11:51 PM..
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07-10-2014, 12:03 AM	#7
Knobi Captain 93 Rep 716 Posts Drives: 2015 YMB M3 Join Date: Jan 2009 Location: Weston, FL iTrader: (4) Garage List 2011 BMW E90 335i [9.50]	Get them for $25 at burgertuning.com __________________ 2015 BMW M3 \| DCT \| Yas Marina Blue \| Silverstone \| Executive \| Lightning \| Driver Assistant \| Carbon Ceramic Brakes Instagram: @benrivasplata
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07-10-2014, 09:12 PM	#9
Jsoboti Lieutenant 28 Rep 583 Posts Drives: 2011 335i E92 M-Sport 6MT Join Date: May 2014 Location: Mississippi iTrader: (0)	Just put 6.5 gallons mixed with 93 to make a full tank. How long before I should "feel the effects" Yes I have FF wires __________________ JB4 G5 ISO FF \| BMS Performance Intake \| BMS Wheel Spacers \| VRSF Catless DP \| Red CYBA Scoops \| Supreme Power Lowering Perches \| VRSF Charge Pipe \| VMR 810 19x8.5 ET35 19x9.5 ET33 \| Michelin PSS 235/265 \| BMS CDV \| BMS Clutch Stop \| 4'' Tips
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07-11-2014, 12:54 AM	#12
Dannyrio17 Second Lieutenant 13 Rep 292 Posts Drives: 2013 BSM 335i Coupe M-Sport Join Date: Jul 2013 Location: NORTH JERSEY iTrader: (1) Garage List 2013 335i Coupe [10.00]	just ordered my ff wires.. excitedd ! is there a significant diff in power from using 93gas, map 5 to now being able to add 40/50% e85 ?
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07-11-2014, 08:18 AM	#13
JETmn Lieutenant Colonel 245 Rep 1,595 Posts Drives: 2011 335i xDrive Msport Join Date: Apr 2013 Location: Orlando iTrader: (0) Garage List 2011 335Xi [0.00]	Yes, difference is as great as going from stock to stage 1. I just got some bad E85 though and it is pulling timing. Time to figure out how to burn up this tank of gas fast...
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