How much e85 on the lpfp

cmotzner · 08-17-2014, 04:27 PM

what would be the most e85 you would recommend to run on the stock lpfp?

Thanks

e92_enthusiast_1 · 08-17-2014, 04:34 PM

Doing e30 w/o any issues so far. AFAIK, from what I read maybe e40 is a theoretical limit. Someone with more experience please let us know. You'll start getting a random Fuel Pump, plausibility code every now and then, as long as no other codes accompany it though you can just clear it and ignore. Happened to me @ e30 but its very rare. I believe that is a sign you are pretty close to the stock lpfp limits but im not sure.

Quote:

Originally Posted by cmotzner

what would be the most e85 you would recommend to run on the stock lpfp?

Thanks

Eat.Sleep.Race · 08-17-2014, 04:40 PM

e25 was all i could get to work with stock pump. I did Fuel-It kit stage2 and now am running e70 with no issues.

335NJ · 08-17-2014, 04:42 PM

I'm running between E30-E40 right now, blended with 93, second batch ever dumped in with no issues. Logs show perfect running conditions all around.

Eat.Sleep.Race · 08-17-2014, 04:47 PM

i was getting a LPF sensor code, going to see if its still showing that on mine, if so ill have to replace that, now that the new fuel kit is in..

michael1972 · 08-17-2014, 05:26 PM

I have been running e36 for the past few months with no issues. Logs look good. Upgradeing fuel pump this weekend and getting a backend flash shooting for e65-70 on map 7

Eat.Sleep.Race · 08-17-2014, 05:28 PM

Quote:

Originally Posted by michael1972

I have been running e36 for the past few months with no issues. Logs look good. Upgradeing fuel pump this weekend and getting a backend flash shooting for e65-70 on map 7

Big POWA!!

Ovitrix335 · 08-17-2014, 05:50 PM

Quote:

Originally Posted by Eat.Sleep.Race

e25 was all i could get to work with stock pump. I did Fuel-It kit stage2 and now am running e70 with no issues.

How's the hpfp liking all that e85 at high boost?
I run e30 ptf map for over 20k miles, no issues yet with the stock pump...

MasterWang · 08-18-2014, 01:56 PM

I've put in as much as 70% e85 using stock pump. Anything above that made my lpfp drop below 50.

BQTuning · 08-18-2014, 02:17 PM

I have been running E50-E60 for well over a year now

mike@x-ph.com · 08-18-2014, 02:17 PM

e30-e40 on the stock fuel pump

UMich_335i · 08-18-2014, 02:23 PM

Just replaced my lpfs (not a fun install) and in the middle of putting in SteveAZ's stage 1 kit before contacting PTF for an e50 pro tune. Only ever ran 2 gallons of e85 to fix some timing corrections.

08-17-2014, 04:27 PM	#1
cmotzner Enlisted Member 5 Rep 33 Posts Drives: 335i Join Date: Jun 2014 Location: Boynton Beach, FL iTrader: (0)	How much e85 on the lpfp what would be the most e85 you would recommend to run on the stock lpfp? Thanks
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08-17-2014, 04:40 PM	#3
Eat.Sleep.Race Out Boosting... 248 Rep 3,987 Posts Drives: F30 335i M-Sport Join Date: Feb 2014 Location: Northern VA iTrader: (7)	e25 was all i could get to work with stock pump. I did Fuel-It kit stage2 and now am running e70 with no issues. __________________ Alpine White M-Sport F30
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08-17-2014, 04:42 PM	#4
335NJ Colonel 535 Rep 2,872 Posts Drives: 2008 335i 6MT E90 Join Date: Feb 2014 Location: NJ/Philadelphia Suburbs iTrader: (1)	I'm running between E30-E40 right now, blended with 93, second batch ever dumped in with no issues. Logs show perfect running conditions all around.
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08-17-2014, 04:47 PM	#5
Eat.Sleep.Race Out Boosting... 248 Rep 3,987 Posts Drives: F30 335i M-Sport Join Date: Feb 2014 Location: Northern VA iTrader: (7)	i was getting a LPF sensor code, going to see if its still showing that on mine, if so ill have to replace that, now that the new fuel kit is in.. __________________ Alpine White M-Sport F30
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08-17-2014, 05:26 PM	#6
michael1972 Second Lieutenant 16 Rep 270 Posts Drives: 2007 335i coupe Join Date: Oct 2013 Location: Mosinee, WI. USA iTrader: (0)	I have been running e36 for the past few months with no issues. Logs look good. Upgradeing fuel pump this weekend and getting a backend flash shooting for e65-70 on map 7
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08-18-2014, 01:56 PM	#9
MasterWang Captain 138 Rep 926 Posts Drives: F06 M6 Join Date: Jan 2011 Location: Overland Park, KS iTrader: (2)	I've put in as much as 70% e85 using stock pump. Anything above that made my lpfp drop below 50.
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08-18-2014, 02:17 PM	#10
BQTuning Banned 475 Rep 4,392 Posts Drives: 2012 Z4 sDrive35i M Sport 6MT Join Date: Nov 2010 Location: bq@bqtuning.com iTrader: (0)	I have been running E50-E60 for well over a year now
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08-18-2014, 02:17 PM	#11
mike@x-ph.com BimmerPost Supporting Vendor 27330 Rep 196,656 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	e30-e40 on the stock fuel pump __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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08-18-2014, 02:23 PM	#12
UMich_335i Lieutenant 25 Rep 414 Posts Drives: 2009 e90 335i Join Date: Aug 2013 Location: Atlanta, GA iTrader: (0) Garage List 2009 BMW 335i [0.00]	Just replaced my lpfs (not a fun install) and in the middle of putting in SteveAZ's stage 1 kit before contacting PTF for an e50 pro tune. Only ever ran 2 gallons of e85 to fix some timing corrections. __________________ 2009 e90 335i \| AT \| AG M590 \| Conti DW \| KW V1 \| Lux \| Akebono e50 PTF Protune \| Cobb FMIC \| aFe DCI \| VRSF DPs \| ER CP \| Tial BOV \| Alpina Flash \| Fuel-It Stg1 \| RB PCV \| Cobb Exhaust
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