N55 and e85

4lss · 11-18-2014, 07:48 PM

Hey all,

I'll be installing Flex Fuel wires this week. My car is a 2011 335i xDrive sedan, JB4 stage 2 (non ISO), VRSF downpipe and BMS intake. Should I use map 5? How much e85 should I mix in? Also, is it a good idea to upgrade to ISO, why?
I appreciate any info you can chime in.

Johnny Boost · 11-18-2014, 08:08 PM

Quote:

Originally Posted by djfellipe

Hey all,

I'll be installing Flex Fuel wires this week. My car is a 2011 335i xDrive sedan, JB4 stage 2 (non ISO), VRSF downpipe and BMS intake. Should I use map 5? How much e85 should I mix in? Also, is it a good idea to upgrade to ISO, why?
I appreciate any info you can chime in.

Yes map 5. 40% e85. Yes upgrade to ISO.

Jsoboti · 11-18-2014, 08:09 PM

I would upgrade to ISO. Much smoother (more smooth?) power delivery, you'll be really happy. I run about 6 gallons of E85 and 10 gallons of 93. Could I do more? Probably but that's what I've become comfortable with.

Yes, use map 5. Make sure after you fill up with the E85 and you drive a bit to get the new mix into the system and then reset Map 5 (switch to map two and get out of the JB4 dash controls then go right back in and reselect map 5) then do 3 hard pulls in 3rd gear to get the map adapted to the new octane.

You should notice a pretty good increase in power. Enjoy!

aren93 · 11-18-2014, 08:37 PM

Yeah you should definitely run 40% e85 60% 91/93. When I first started using e85 I really felt the car pull harder and sometimes it would backfire which sounds sick lol. I have had e85 in my tank since I got the JB4, im addicted to it lol

Euroboost91 · 11-18-2014, 09:45 PM

I run about 4 gallons of E85 and the rest 93 octane. And yes, its very addicting and leads to terrible gas mileage but awesome gains.

mike@x-ph.com · 11-18-2014, 10:36 PM

Yes use map 5

4lss · 11-19-2014, 08:47 AM

Thanks for the replies!
Here's another question:

What should I do when running out of e85+93 and there's none available?
Change maps/reset map5 when refueling with 93 only?

weehe126 · 11-19-2014, 09:15 AM

You can run map 5 with just 93, it will adjust.

Jsoboti · 11-19-2014, 09:25 AM

Quote:

Originally Posted by djfellipe

Thanks for the replies!
Here's another question:

What should I do when running out of e85+93 and there's none available?
Change maps/reset map5 when refueling with 93 only?

Yes, every time you change the mix reset the map so it can optimize your boost targets

4lss · 11-19-2014, 11:22 AM

Sounds good! Thanks again for all the info!

11-18-2014, 07:48 PM	#1
4lss Private First Class 17 Rep 103 Posts Drives: 2014 F30 335i xDrive M-Sport Join Date: Jun 2014 Location: Marietta, GA iTrader: (0)	N55 and e85 Hey all, I'll be installing Flex Fuel wires this week. My car is a 2011 335i xDrive sedan, JB4 stage 2 (non ISO), VRSF downpipe and BMS intake. Should I use map 5? How much e85 should I mix in? Also, is it a good idea to upgrade to ISO, why? I appreciate any info you can chime in. __________________ 2014 335i xDrive F30 auto, Jb4 FF+EWG wires, VRSF DP,CP and FMIC, BMS intake, Remus Axle-back SOLD - 2011 335i xDrive 6MT e90, JB4 ISO + ff wires, VRSF downpipe and chargepipe, BMS intake, BMS modified clutch valve, ST S1 coilovers.
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11-18-2014, 08:09 PM	#3
Jsoboti Lieutenant 28 Rep 583 Posts Drives: 2011 335i E92 M-Sport 6MT Join Date: May 2014 Location: Mississippi iTrader: (0)	I would upgrade to ISO. Much smoother (more smooth?) power delivery, you'll be really happy. I run about 6 gallons of E85 and 10 gallons of 93. Could I do more? Probably but that's what I've become comfortable with. Yes, use map 5. Make sure after you fill up with the E85 and you drive a bit to get the new mix into the system and then reset Map 5 (switch to map two and get out of the JB4 dash controls then go right back in and reselect map 5) then do 3 hard pulls in 3rd gear to get the map adapted to the new octane. You should notice a pretty good increase in power. Enjoy! __________________ 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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11-18-2014, 08:37 PM	#4
aren93 First Lieutenant 34 Rep 394 Posts Drives: 2012 335i M Sport Join Date: Sep 2014 Location: Los Angeles iTrader: (2)	Yeah you should definitely run 40% e85 60% 91/93. When I first started using e85 I really felt the car pull harder and sometimes it would backfire which sounds sick lol. I have had e85 in my tank since I got the JB4, im addicted to it lol __________________ MHD- VRSF Catless Downpipe - VRSF Charge Pipe - VRSF 7" FMIC - aFe Intake - Alpina Flash - Pure Stage 2 - Pure Inlet - Fuel it! PI - Fuel it! Stage 2 LPFP - N20 3.5bar Tmap sensor - N20 spark plugs -
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11-18-2014, 09:45 PM	#5
Euroboost91 Private First Class 57 Rep 170 Posts Drives: 2011 BMW 335i Join Date: Apr 2011 Location: Lake Worth, FL iTrader: (1)	I run about 4 gallons of E85 and the rest 93 octane. And yes, its very addicting and leads to terrible gas mileage but awesome gains. __________________ 2011 E90 335i LCI 6MT \| Bagged \| IG: rrs_simplee90
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11-18-2014, 10:36 PM	#6
mike@x-ph.com BimmerPost Supporting Vendor 24199 Rep 190,807 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	Yes use map 5 __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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11-19-2014, 08:47 AM	#7
4lss Private First Class 17 Rep 103 Posts Drives: 2014 F30 335i xDrive M-Sport Join Date: Jun 2014 Location: Marietta, GA iTrader: (0)	Thanks for the replies! Here's another question: What should I do when running out of e85+93 and there's none available? Change maps/reset map5 when refueling with 93 only? __________________ 2014 335i xDrive F30 auto, Jb4 FF+EWG wires, VRSF DP,CP and FMIC, BMS intake, Remus Axle-back SOLD - 2011 335i xDrive 6MT e90, JB4 ISO + ff wires, VRSF downpipe and chargepipe, BMS intake, BMS modified clutch valve, ST S1 coilovers.
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11-19-2014, 09:15 AM	#8
weehe126 Brigadier General 1161 Rep 3,189 Posts Drives: 2017 340i Join Date: Apr 2014 Location: San Antonio iTrader: (2)	You can run map 5 with just 93, it will adjust.
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11-19-2014, 11:22 AM	#10
4lss Private First Class 17 Rep 103 Posts Drives: 2014 F30 335i xDrive M-Sport Join Date: Jun 2014 Location: Marietta, GA iTrader: (0)	Sounds good! Thanks again for all the info! __________________ 2014 335i xDrive F30 auto, Jb4 FF+EWG wires, VRSF DP,CP and FMIC, BMS intake, Remus Axle-back SOLD - 2011 335i xDrive 6MT e90, JB4 ISO + ff wires, VRSF downpipe and chargepipe, BMS intake, BMS modified clutch valve, ST S1 coilovers.
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