Stick with the E85 or upgrade to meth? - BMW 3-Series (E90 E92) Forum

jzingerman · 01-19-2013, 01:41 AM

I've been filling up for the last few weeks with 40/60 E85 and 91 and the power has just been great. The car pulls like crazy but I'm looking to upgrade even more and make the car even faster. I've always had the idea of running meth but now I might want to actaully follow through with it. If I do install meth, how will the power be compared to filling up with e85 and running map on the Jb4 Stage 2?

Also, whats the best meth kit for the n55? I've seen some pretty good reviews on the WW meth kit but also on the Snow Performance so I'm not sure which one to go with.

Thanks for the help

jzingerman · 01-19-2013, 11:34 PM

bump

mashimarho · 01-20-2013, 12:23 AM

I haven't tested with meth, but I do love my e85 as well.

jzingerman · 01-20-2013, 05:54 PM

Quote:

Originally Posted by mashimarho

I haven't tested with meth, but I do love my e85 as well.

Does the e85 ever cause you any problems?

mashimarho · 01-20-2013, 05:57 PM

Quote:

Originally Posted by jzingerman

Does the e85 ever cause you any problems?

None thus far.

jzingerman · 01-20-2013, 06:55 PM

Quote:

Originally Posted by mashimarho

None thus far.

How much do you put in and what map are you running? I've been only using map 5 until I send some logs over to Terry

mashimarho · 01-20-2013, 09:41 PM

40/60 map 5
With e85/93 octane.

jzingerman · 01-20-2013, 11:22 PM

Quote:

Originally Posted by mashimarho

40/60 map 5
With e85/93 octane.

have you tried map 7? not sure if people are using map 7 when running e85.

F335i · 01-21-2013, 12:58 AM

I been doing a 50/50 E85 mix on map 7 for months and have sent logs to terry many times, he said logs look good. Just log and look at your ign advance.

Dark_Knight_335 · 01-21-2013, 11:33 AM

I want to know where the hell you guys are getting race gas.

boostd92 · 01-21-2013, 02:34 PM

For those of you running 15psi+ on E85 with *NO METH*, what do your intake temps look like?

I've run E85 for the last year... about 3.5-4 gallons per tank and the sound, smell, and feel of the car is great, but without meth or FMIC my intake temps at the dragstrip are over 170F by the end of the traps....

E85 may keep you from knocking (which ultimately is the most important thing), but according to my logs, the DME reduces timing advance when IAT's rise, even if it's NOT seeing knock. Supposedly, this is the main benefit of the (N54 only) Vishnu E85 flash... it takes away the IAT ign ret. from the DME...

So what I'm saying is... E85 will not allow you to run high boost at maximum power unless you have something to reduce IATs... an FMIC will do this for single or short 2-gear pulls, but even an FMIC will struggle at the end of the dragstrip.

If you go Meth, there is arguably no reason for an upgraded FMIC (besides better flow, which gains from just flow are extremely minimal).

That's where I'm at... do I drop $1,000 on a responsibly built (trunk mount, stainless lines, etc) meth kit? ... or be happy with what I've got .... stuck at 12.80's with procede/dp/exh.

jzingerman · 01-21-2013, 03:58 PM

1,000 for a trunk mount meth kit? What kits are you looking
At? The WW meth kit is around 400 if I'm not mistaken.

Quote:

Originally Posted by boostd92

For those of you running 15psi+ on E85 with *NO METH*, what do your intake temps look like?

I've run E85 for the last year... about 3.5-4 gallons per tank and the sound, smell, and feel of the car is great, but without meth or FMIC my intake temps at the dragstrip are over 170F by the end of the traps....

E85 may keep you from knocking (which ultimately is the most important thing), but according to my logs, the DME reduces timing advance when IAT's rise, even if it's NOT seeing knock. Supposedly, this is the main benefit of the (N54 only) Vishnu E85 flash... it takes away the IAT ign ret. from the DME...

So what I'm saying is... E85 will not allow you to run high boost at maximum power unless you have something to reduce IATs... an FMIC will do this for single or short 2-gear pulls, but even an FMIC will struggle at the end of the dragstrip.

If you go Meth, there is arguably no reason for an upgraded FMIC (besides better flow, which gains from just flow are extremely minimal).

That's where I'm at... do I drop $1,000 on a responsibly built (trunk mount, stainless lines, etc) meth kit? ... or be happy with what I've got .... stuck at 12.80's with procede/dp/exh.

emackin · 01-22-2013, 08:03 AM

Those of you running e85/93 mix do you have iso or just stage 2 jb4? I have the stage 2 and im interested in doing e85 kinda scared of running meth because its my dd

jzingerman · 01-22-2013, 12:17 PM

I have the ISO and using e85 and seems to me that everyone else that is using e85 also have ISO

Quote:

Originally Posted by emackin

Those of you running e85/93 mix do you have iso or just stage 2 jb4? I have the stage 2 and im interested in doing e85 kinda scared of running meth because its my dd

emackin · 01-22-2013, 12:59 PM

Thanks, looks like ill have to update to iso before i start running e85

eyim1988 · 01-22-2013, 01:11 PM

you won't make much more power using meth if you are already using e85. the only benefit will be the cooler temps. IMO, just get a fmic and stick with e85.

01-19-2013, 01:41 AM	#1
jzingerman Second Lieutenant Drives: 2011 Bmw 335i M sport Join Date: Nov 2011 Location: Beverly Hills California Posts: 218 iTrader: (0)	Stick with the E85 or upgrade to meth? I've been filling up for the last few weeks with 40/60 E85 and 91 and the power has just been great. The car pulls like crazy but I'm looking to upgrade even more and make the car even faster. I've always had the idea of running meth but now I might want to actaully follow through with it. If I do install meth, how will the power be compared to filling up with e85 and running map on the Jb4 Stage 2? Also, whats the best meth kit for the n55? I've seen some pretty good reviews on the WW meth kit but also on the Snow Performance so I'm not sure which one to go with. Thanks for the help __________________ 2011 BMW 335i M Sport- Space Grey Metallic * Black Kidney Grills * Jb4 Stage 2 ISO * Injen Intake * AR 4" Downpipe * 19" VMR V710 * Michelin Pilot Super Sports 235/265 * KW V3 Coilovers * 8k Alpine Angel Eyes * Gloss Black Roof Vinyl
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01-19-2013, 11:34 PM	#2
jzingerman Second Lieutenant Drives: 2011 Bmw 335i M sport Join Date: Nov 2011 Location: Beverly Hills California Posts: 218 iTrader: (0)	bump __________________ 2011 BMW 335i M Sport- Space Grey Metallic * Black Kidney Grills * Jb4 Stage 2 ISO * Injen Intake * AR 4" Downpipe * 19" VMR V710 * Michelin Pilot Super Sports 235/265 * KW V3 Coilovers * 8k Alpine Angel Eyes * Gloss Black Roof Vinyl

01-20-2013, 12:23 AM	#3
mashimarho Boss Drives: e92 LCI 335i xDrive™ Join Date: Mar 2010 Location: Grand Rapids, michigan Posts: 5,818 iTrader: (27) Garage List 2012 BMW 335i xDrive [5.00]	I haven't tested with meth, but I do love my e85 as well. __________________ -Sean. 360 FORGED///DynamikiLLu51ions///ER///BMS///KW///VRSF///ARKYM///DD///CYBA///STOPTECH///BMW Performance /// My Progress: http://www.e90post.com/forums/showthread.php?t=770326

01-20-2013, 09:41 PM	#7
mashimarho Boss Drives: e92 LCI 335i xDrive™ Join Date: Mar 2010 Location: Grand Rapids, michigan Posts: 5,818 iTrader: (27) Garage List 2012 BMW 335i xDrive [5.00]	40/60 map 5 With e85/93 octane. __________________ -Sean. 360 FORGED///DynamikiLLu51ions///ER///BMS///KW///VRSF///ARKYM///DD///CYBA///STOPTECH///BMW Performance /// My Progress: http://www.e90post.com/forums/showthread.php?t=770326

01-21-2013, 12:58 AM	#9
F335i Private Drives: 2012 335i Coupe 6AT Join Date: Jun 2012 Location: Miami, Florida Posts: 66 iTrader: (0)	I been doing a 50/50 E85 mix on map 7 for months and have sent logs to terry many times, he said logs look good. Just log and look at your ign advance. __________________ JB4 S2 ISO Map7, BMS Intake, BMS Chargepipe, BMS Downpipe, BMS OCC, Flex fuel wires.

01-21-2013, 11:33 AM	#10
Dark_Knight_335 Came to the N55 Darkside Drives: 2011 335 E93 M-Sport Join Date: May 2010 Location: NY/NJ Posts: 5,783 iTrader: (17)	I want to know where the hell you guys are getting race gas. __________________ Assorted E9x bushings, 200$ local pickup or 225$ shipped! http://www.e90post.com/forums/showth...2#post13995632

01-21-2013, 02:34 PM	#11
boostd92 Captain Drives: '11 E92 M-Sport Join Date: Jun 2009 Location: Chicago, IL Posts: 628 iTrader: (1) Garage List 2011 BMW 335i M-Spo ... [3.63]	For those of you running 15psi+ on E85 with NO METH, what do your intake temps look like? I've run E85 for the last year... about 3.5-4 gallons per tank and the sound, smell, and feel of the car is great, but without meth or FMIC my intake temps at the dragstrip are over 170F by the end of the traps.... E85 may keep you from knocking (which ultimately is the most important thing), but according to my logs, the DME reduces timing advance when IAT's rise, even if it's NOT seeing knock. Supposedly, this is the main benefit of the (N54 only) Vishnu E85 flash... it takes away the IAT ign ret. from the DME... So what I'm saying is... E85 will not allow you to run high boost at maximum power unless you have something to reduce IATs... an FMIC will do this for single or short 2-gear pulls, but even an FMIC will struggle at the end of the dragstrip. If you go Meth, there is arguably no reason for an upgraded FMIC (besides better flow, which gains from just flow are extremely minimal). That's where I'm at... do I drop $1,000 on a responsibly built (trunk mount, stainless lines, etc) meth kit? ... or be happy with what I've got .... stuck at 12.80's with procede/dp/exh.

01-22-2013, 08:03 AM	#13
emackin Private Drives: 2011 335i e90 Join Date: Jan 2013 Location: Va beach Va Posts: 92 iTrader: (0)	Those of you running e85/93 mix do you have iso or just stage 2 jb4? I have the stage 2 and im interested in doing e85 kinda scared of running meth because its my dd

01-22-2013, 12:59 PM	#15
emackin Private Drives: 2011 335i e90 Join Date: Jan 2013 Location: Va beach Va Posts: 92 iTrader: (0)	Thanks, looks like ill have to update to iso before i start running e85

01-22-2013, 01:11 PM	#16
eyim1988 Major Drives: 2011 335i coupe Join Date: Feb 2011 Location: Los Angeles, CA Posts: 1,259 iTrader: (2)	you won't make much more power using meth if you are already using e85. the only benefit will be the cooler temps. IMO, just get a fmic and stick with e85. __________________ Procede v5, ER Competition FMIC, ER Chargepipe, HP Autowerks foam filter, Custom turboback exhaust, 369 whp/444 torque (no intercooler)

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