My car feels slower with e85

aren93 · 01-31-2015, 06:37 PM

Hey guys I've been noticing recently every time I fill up e85 40% or 30% my car feels like sluggish, especially shifting through gears. It shouldn't be too much boost right? My boost meter goes like 2 ticks away from max. When I fill up just 91 the car feels faster and runs smooth especially 1st to 2nd gear there;s no lag, which with e85 I always have a quick delay or backfire/misfire. Any ideas?

ShlemonboostedM · 01-31-2015, 08:36 PM

Log and see fl_h pressure .. It might be dropping ..you leaning out and going to map 4 ..

astout26 · 02-01-2015, 07:54 PM

is your clutch possibly slipping i was having a problem similar..

aren93 · 02-01-2015, 11:19 PM

Quote:

Originally Posted by astout26

is your clutch possibly slipping i was having a problem similar..

I mean it's automatic so is that possible? lol

JETmn · 02-02-2015, 08:20 AM

You have flex fuel wires, right? I would recommend starting at a lower amount and working your way up. I would also use map 5 and do the three 3rd gear runs. My car doesn't like anything over E35.

Johnny Boost · 02-02-2015, 10:38 AM

What map are you running Aren?

aren93 · 02-02-2015, 07:46 PM

Yeah I have the Flex Fuel Wires and I'm on map 5 and every time I fill up e85 I drive around for 5 min to let the fuel mix then I reset map 5 and do 3 pulls in third gear and usually more pulls after. But maybe I should put like only 3 gallons of e85 instead of 6 and test it out.

JETmn · 02-03-2015, 09:12 AM

Yeah, 6 is the max I can do. If your HPFP is weaker then it will be lower than that. I would start with 3-4 gallons and go up from there.

Jsoboti · 02-03-2015, 10:21 AM

I usually do 6 then top off with 93, usually ends up being 8 gallons of 93

mike@x-ph.com · 02-03-2015, 01:25 PM

Share logs for better help.
Your car might not be getting enough fuel

01-31-2015, 06:37 PM	#1
aren93 First Lieutenant 34 Rep 394 Posts Drives: 2012 335i M Sport Join Date: Sep 2014 Location: Los Angeles iTrader: (2)	My car feels slower with e85 Hey guys I've been noticing recently every time I fill up e85 40% or 30% my car feels like sluggish, especially shifting through gears. It shouldn't be too much boost right? My boost meter goes like 2 ticks away from max. When I fill up just 91 the car feels faster and runs smooth especially 1st to 2nd gear there;s no lag, which with e85 I always have a quick delay or backfire/misfire. Any ideas? __________________ 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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01-31-2015, 08:36 PM	#2
ShlemonboostedM Banned 92 Rep 586 Posts Drives: 335i F30 Join Date: Oct 2013 Location: brooklyn ny iTrader: (4)	Log and see fl_h pressure .. It might be dropping ..you leaning out and going to map 4 ..
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02-01-2015, 07:54 PM	#3
astout26 Enlisted Member 2 Rep 40 Posts Drives: Searching for M2 Join Date: Jun 2014 Location: Sarasota, FL iTrader: (0)	is your clutch possibly slipping i was having a problem similar.. __________________ 2016 Audi S3 FBO SOLD 2011 Space Gray 335i 6MT-Dinan axle-back, JB4,CP,DP SOLD 2009 Infiniti G37S SOLD
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02-02-2015, 08:20 AM	#5
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]	You have flex fuel wires, right? I would recommend starting at a lower amount and working your way up. I would also use map 5 and do the three 3rd gear runs. My car doesn't like anything over E35.
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02-02-2015, 10:38 AM	#6
Johnny Boost Colonel 324 Rep 2,014 Posts Drives: '21 M850i GC Join Date: May 2013 Location: TBD iTrader: (0)	What map are you running Aren? __________________ WedgePerformance E40 MHD \| Performance Exhaust Mod \| BMS DP \| Vibrant 1790 \| BMS Intake \| VRSF CP \| xHP Stage 3 Michelin PSS \| M3 Control Arms LUX v4 LEDs \| Shadowline Grills \| Lip Spoiler
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02-02-2015, 07:46 PM	#7
aren93 First Lieutenant 34 Rep 394 Posts Drives: 2012 335i M Sport Join Date: Sep 2014 Location: Los Angeles iTrader: (2)	Yeah I have the Flex Fuel Wires and I'm on map 5 and every time I fill up e85 I drive around for 5 min to let the fuel mix then I reset map 5 and do 3 pulls in third gear and usually more pulls after. But maybe I should put like only 3 gallons of e85 instead of 6 and test it out. __________________ 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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02-03-2015, 09:12 AM	#8
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]	Yeah, 6 is the max I can do. If your HPFP is weaker then it will be lower than that. I would start with 3-4 gallons and go up from there.
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02-03-2015, 10:21 AM	#9
Jsoboti Lieutenant 28 Rep 583 Posts Drives: 2011 335i E92 M-Sport 6MT Join Date: May 2014 Location: Mississippi iTrader: (0)	I usually do 6 then top off with 93, usually ends up being 8 gallons of 93 __________________ 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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02-03-2015, 01:25 PM	#10
mike@x-ph.com BimmerPost Supporting Vendor 24174 Rep 190,750 Posts Drives: 07-335/12-328/18-M4/21-M4CP Join Date: Sep 2013 Location: Las Vegas iTrader: (23)	Share logs for better help. Your car might not be getting enough fuel __________________ Check out our current sale by clicking on this link! https://x-ph.com/sale/ Phone number 702-494-9435
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