NGK Gap

geterdone · 06-15-2013, 11:43 PM

When gapping the NGK plugs do I use inch or Metric. Searched for 30 minutes and can't find a answer.

3000GT MR · 06-15-2013, 11:51 PM

If your on stock turbos you can get away with. .028 if you have meth if recommend. .026

psmitty95 · 06-15-2013, 11:57 PM

I did .022 per recommendation on n54tech. I'm on stock turbos just FBO no meth. Is that gap too small?

Carl Morris · 06-16-2013, 01:35 AM

Last time I went to the dyno I was on 100% E85 and put in new NGKs gapped to 0.029". When I got to the dyno they misfired worse than the relatively new factory plugs I had just taken out. Totally wasn't expecting that. Pulled them and gapped them to 0.022" as recommended by the dyno owner and all the misfires went away and I've run them at that gap since then.

jayzF30 · 06-16-2013, 03:41 AM

http://blog.protuningfreaks.com/2013...m-ilzkbr7a-8g/

geterdone · 06-16-2013, 05:31 PM

Gapped at .22 and misfiring like crazy. Guess I am just going to go back to the shitty bosch plugs. With the Bosch they are too hot and I am getting tired of having to change them with every oil change.

cleex024 · 06-16-2013, 05:50 PM

Quote:

Originally Posted by geterdone

Gapped at .22 and misfiring like crazy. Guess I am just going to go back to the shitty bosch plugs. With the Bosch they are too hot and I am getting tired of having to change them with every oil change.

tell you the truth i think there is something wrong with your car then...i am pretty sure there are guys out there that running the bosch plugs with upgraded turbos too.

i ran both the bosch and ngk plugs and both worked flawlessly on e30 cobb maps. and many people on here run them without issue so i am guessing that its most likely something on your car like leaky valve cover gasket or what not.

you should not have to replace plugs every oil change lol.

Jeff@TopGearSolutions · 06-16-2013, 11:58 PM

Quote:

Originally Posted by geterdone

Gapped at .22 and misfiring like crazy. Guess I am just going to go back to the shitty bosch plugs. With the Bosch they are too hot and I am getting tired of having to change them with every oil change.

Can you be more specific? What are your modifications. A large portion of the community with upgrades still run stock plugs seamlessly. They typically only last 20-25K miles when tuned. (I've honestly seen some go past 50K on stock plugs but that's besides the point).

Please elaborate on your specific situation as it sounds more hardware related if you are eating plugs or a tuning issue.

Ovitrix335 · 06-17-2013, 07:47 AM

I have my ngk gapped at 0.022" and been running them for the past 3000miles with no problems at all. I'm FBO on e85.

06-15-2013, 11:43 PM	#1
geterdone Private First Class 6 Rep 144 Posts Drives: 2007 335i Join Date: Mar 2011 Location: Yukon, Oklahoma iTrader: (1)	NGK Gap When gapping the NGK plugs do I use inch or Metric. Searched for 30 minutes and can't find a answer.
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06-15-2013, 11:51 PM	#2
3000GT MR Major 267 Rep 1,392 Posts Drives: 09 335i/3000gt vr4 Join Date: Jun 2012 Location: Sav GA iTrader: (6)	If your on stock turbos you can get away with. .028 if you have meth if recommend. .026 __________________ Have a single turbo and/or tired of burning up O2 sensors? Ask me about the new ADV O2 sensor retro kits! 335i 2010 e92 M-sport Mods: VM Top mount 6466, Aquamist HSF4 w/custom direct port. VRSF IC + Exhaust 335i 2009 e90 665RWHP VFF900 ST RIP .
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06-15-2013, 11:57 PM	#3
psmitty95 Brigadier General 593 Rep 4,393 Posts Drives: '23 M340i xDrive Join Date: Jan 2012 Location: Boston, MA iTrader: (11)	I did .022 per recommendation on n54tech. I'm on stock turbos just FBO no meth. Is that gap too small? __________________ < Click picture for photoshoot E90 335i xDrive 6spd, Nav, Prem, Cold Weather, & Sports package - Msport Conversion Mods: JB4 + MHD, Doc Race ST, Pure 6266, AD-Eng PI/Mounts, Fuel-It st. 3, Custom Exhaust, Tuned by TwistedTuning More Pictures: Build Thread /// 683AWHP/675AWTQ
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06-16-2013, 01:35 AM	#4
Carl Morris Captain 19 Rep 650 Posts Drives: 2008 335xi 6MT Join Date: Feb 2012 Location: San Jose, CA iTrader: (0)	Last time I went to the dyno I was on 100% E85 and put in new NGKs gapped to 0.029". When I got to the dyno they misfired worse than the relatively new factory plugs I had just taken out. Totally wasn't expecting that. Pulled them and gapped them to 0.022" as recommended by the dyno owner and all the misfires went away and I've run them at that gap since then.
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06-16-2013, 03:41 AM	#5
jayzF30 Captain 36 Rep 783 Posts Drives: '07 335i, '09 M3 Join Date: Mar 2012 Location: Thornhill iTrader: (0)	http://blog.protuningfreaks.com/2013...m-ilzkbr7a-8g/ __________________ '07 335i E90 - PTF ProTUNED by Dzenno - COBB FMIC - AFE DCI - AA DPs - HFS4 Meth '09 M3 - Stock
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06-16-2013, 05:31 PM	#6
geterdone Private First Class 6 Rep 144 Posts Drives: 2007 335i Join Date: Mar 2011 Location: Yukon, Oklahoma iTrader: (1)	Gapped at .22 and misfiring like crazy. Guess I am just going to go back to the shitty bosch plugs. With the Bosch they are too hot and I am getting tired of having to change them with every oil change.
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06-17-2013, 07:47 AM	#9
Ovitrix335 Second Lieutenant 7 Rep 229 Posts Drives: Bmw 335i Join Date: Aug 2011 Location: Michigan iTrader: (11)	I have my ngk gapped at 0.022" and been running them for the past 3000miles with no problems at all. I'm FBO on e85.
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