Is it true, 5K plug change intervals FBO E85?

Miller335 · 05-23-2014, 06:11 PM

I didn't believe it until today.

Got a misfire in cylinder #1, pulled the plug and look at the condition of it.
They all look this way.

I have almost 8K on these plugs, running mainly E50+ and aggressive tunes with FBO minus FMIC upgrade.

AK 335i · 05-23-2014, 06:16 PM

i do mine every 5k

uniter · 05-23-2014, 06:24 PM

http://mastercams.co.za/images/spark...reading-lg.jpg

What AFR are you targeting?

Miller335 · 05-23-2014, 07:11 PM

11.0-11.9 at higher rpms.

BQTuning · 05-23-2014, 07:16 PM

That is really rich for E50+

Miller335 · 05-23-2014, 07:34 PM

Quote:

Originally Posted by AK 335i

i do mine every 5k

I've seen guys on here say they do them every 5k with oil changes but I thought it was overkill.

I guessed incorrectly.

Ilma · 05-23-2014, 08:21 PM

Yeah....that looks a little too rich

tc535i · 05-23-2014, 08:43 PM

You're safe running high 13 low 14 with these direct injection motors, tuning afr like a traditional injection car will result in rich conditions

j1gilles · 05-23-2014, 08:47 PM

I run 100% e85 in my GNX and I have noticed if I run my air/fuel a little fat the plugs do foul quicker than if I was running 93 octane... I tend to lean out my ratio and that has helped greatly. E85 seems to allow for a little more wiggle room...

Miller335 · 05-23-2014, 08:56 PM

Here's all of them.
According to ngk's website my plugs are fine, just worn.

uniter · 05-23-2014, 11:52 PM

Are you using instagram or is your camera just like that?

In any case, 11.5 is a bit rich for ethanol tuning, you should try to run 12.1 at least.

Miller335 · 05-24-2014, 06:06 AM

Not sure what you mean about my camera, looks fine to me.

So you guys are 12 to 1+ at 6k rpm?

BQTuning · 05-24-2014, 07:23 AM

Quote:

Originally Posted by Miller335

Not sure what you mean about my camera, looks fine to me.

So you guys are 12 to 1+ at 6k rpm?

Yes indeed...however if your using ATR there maybe an offset of what the final ratio will be . So if you start off with 12.1 see what the logs say, regardless of what tune, you may need to adjust till logs start showing around 12.1

Later on when you pull the plugs again it will tell if you need to bump up AFR a tad more or not

135Pats · 05-24-2014, 09:37 AM

I target about 12.3-.5 up top on E50 and meth.

Agreed with others, plugs look a bit rich. Nothing overly concerning though.

Owz · 05-24-2014, 10:00 AM

I've had my 335i coup now for around six months and done 7k. Looking at the pics of
your plugs, i'm really considering changing mine.
Which plugs are best??

uniter · 05-24-2014, 10:07 AM

That said rich = safe. You're probably just leaving 15-20HP on the table... and fouling your plugs early.

uniter · 05-24-2014, 10:10 AM

Here's my BIEHNTUNE'd AFR table. [This is for meth, it should be richer, but it's closer to what you want to run.]

Stucks · 05-24-2014, 03:29 PM

my ngk's typically last around 5-7k before they start misfiring. e60+meth here.

05-23-2014, 06:11 PM	#1
Miller335 Colonel 291 Rep 2,189 Posts Drives: 2007 E92 Join Date: Oct 2013 Location: Portland, OR iTrader: (0)	Is it true, 5K plug change intervals FBO E85? I didn't believe it until today. Got a misfire in cylinder #1, pulled the plug and look at the condition of it. They all look this way. I have almost 8K on these plugs, running mainly E50+ and aggressive tunes with FBO minus FMIC upgrade.
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05-23-2014, 06:16 PM	#2
AK 335i Major 48 Rep 1,290 Posts Drives: black 335i E90 Join Date: Sep 2012 Location: boynton beach iTrader: (0)	i do mine every 5k __________________ - Proven Power Tampa Built 6466 ST N54 6AT WR 711whp 637wtq -
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05-23-2014, 06:24 PM	#3
uniter Black on Black on Black. 38 Rep 532 Posts Drives: 335i/6mt Sport,Nav,Prem. Join Date: Feb 2010 Location: New Hope, PA iTrader: (1)	http://mastercams.co.za/images/spark...reading-lg.jpg What AFR are you targeting? __________________ LEMANS BLUE M-TECH E92->PROCEDE REV3::BIEHNTUNE FLASH::ETS 7" FMIC::RACELAND DPS::OS GIKEN 1.5 WAY::DEFIV DIFF LOCKDOWN::DEFIV OCC::DEFIV INTAKE::RB PCV
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05-23-2014, 07:11 PM	#4
Miller335 Colonel 291 Rep 2,189 Posts Drives: 2007 E92 Join Date: Oct 2013 Location: Portland, OR iTrader: (0)	11.0-11.9 at higher rpms.
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05-23-2014, 07:16 PM	#5
BQTuning Banned 469 Rep 4,392 Posts Drives: 2012 Z4 sDrive35i M Sport 6MT Join Date: Nov 2010 Location: bq@bqtuning.com iTrader: (0)	That is really rich for E50+
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05-23-2014, 08:21 PM	#7
Ilma Colonel 184 Rep 2,841 Posts Drives: 2008 135i Join Date: Nov 2008 Location: Mississauga iTrader: (0)	Yeah....that looks a little too rich
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05-23-2014, 08:43 PM	#8
tc535i Lieutenant Colonel 215 Rep 1,818 Posts Drives: 2007 335i, 2001 330i, 1995 M3 Join Date: Sep 2013 Location: West Los Angeles iTrader: (1)	You're safe running high 13 low 14 with these direct injection motors, tuning afr like a traditional injection car will result in rich conditions
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05-23-2014, 08:47 PM	#9
j1gilles Captain 51 Rep 719 Posts Drives: 2009 335xi Join Date: Feb 2013 Location: Chicago iTrader: (0)	I run 100% e85 in my GNX and I have noticed if I run my air/fuel a little fat the plugs do foul quicker than if I was running 93 octane... I tend to lean out my ratio and that has helped greatly. E85 seems to allow for a little more wiggle room... __________________ ASE master tech (many moons ago)335xi- JB4 G5 iso/e50 custom flash/Custom meth/Borla mids/Custom x-pipe/DCI/ER charge pipe/Dual Ebay BOV's/Alpina B3 flash/Paddle shifter retro fit
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05-23-2014, 08:56 PM	#10
Miller335 Colonel 291 Rep 2,189 Posts Drives: 2007 E92 Join Date: Oct 2013 Location: Portland, OR iTrader: (0)	Here's all of them. According to ngk's website my plugs are fine, just worn. Last edited by Miller335; 05-23-2014 at 09:47 PM..
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05-23-2014, 11:52 PM	#11
uniter Black on Black on Black. 38 Rep 532 Posts Drives: 335i/6mt Sport,Nav,Prem. Join Date: Feb 2010 Location: New Hope, PA iTrader: (1)	Are you using instagram or is your camera just like that? In any case, 11.5 is a bit rich for ethanol tuning, you should try to run 12.1 at least. __________________ LEMANS BLUE M-TECH E92->PROCEDE REV3::BIEHNTUNE FLASH::ETS 7" FMIC::RACELAND DPS::OS GIKEN 1.5 WAY::DEFIV DIFF LOCKDOWN::DEFIV OCC::DEFIV INTAKE::RB PCV
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05-24-2014, 06:06 AM	#12
Miller335 Colonel 291 Rep 2,189 Posts Drives: 2007 E92 Join Date: Oct 2013 Location: Portland, OR iTrader: (0)	Not sure what you mean about my camera, looks fine to me. So you guys are 12 to 1+ at 6k rpm?
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05-24-2014, 09:37 AM	#14
135Pats Major General 456 Rep 6,478 Posts Drives: A few BMWs Join Date: May 2012 Location: Maryland iTrader: (3)	I target about 12.3-.5 up top on E50 and meth. Agreed with others, plugs look a bit rich. Nothing overly concerning though. __________________ E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP F30 N55 XDrive EBII
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05-24-2014, 10:00 AM	#15
Owz Enlisted Member 3 Rep 30 Posts Drives: BMW 335i Join Date: May 2014 Location: Swansea iTrader: (0)	I've had my 335i coup now for around six months and done 7k. Looking at the pics of your plugs, i'm really considering changing mine. Which plugs are best??
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05-24-2014, 10:07 AM	#16
uniter Black on Black on Black. 38 Rep 532 Posts Drives: 335i/6mt Sport,Nav,Prem. Join Date: Feb 2010 Location: New Hope, PA iTrader: (1)	That said rich = safe. You're probably just leaving 15-20HP on the table... and fouling your plugs early. __________________ LEMANS BLUE M-TECH E92->PROCEDE REV3::BIEHNTUNE FLASH::ETS 7" FMIC::RACELAND DPS::OS GIKEN 1.5 WAY::DEFIV DIFF LOCKDOWN::DEFIV OCC::DEFIV INTAKE::RB PCV
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05-24-2014, 10:10 AM	#17
uniter Black on Black on Black. 38 Rep 532 Posts Drives: 335i/6mt Sport,Nav,Prem. Join Date: Feb 2010 Location: New Hope, PA iTrader: (1)	Here's my BIEHNTUNE'd AFR table. [This is for meth, it should be richer, but it's closer to what you want to run.] Attached Images __________________ LEMANS BLUE M-TECH E92->PROCEDE REV3::BIEHNTUNE FLASH::ETS 7" FMIC::RACELAND DPS::OS GIKEN 1.5 WAY::DEFIV DIFF LOCKDOWN::DEFIV OCC::DEFIV INTAKE::RB PCV
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05-24-2014, 03:29 PM	#18
Stucks Lieutenant Colonel 172 Rep 1,909 Posts Drives: 2017 F30 340i Xdrive Join Date: Oct 2010 Location: Montgomery County, MD iTrader: (12)	my ngk's typically last around 5-7k before they start misfiring. e60+meth here. __________________ Current: 2017 F30 340i xdrive Previous: 2008 e92 335i coupe: RB turbos, mach 116 race fuel, methanol, alot of boost. Previous: 2003 Honda Accord V6 coupe: AEM V2, zex 75 wet shot (sold)
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