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Levan-i Levan-i is offline
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Default Spark Plugs, Bosch or NGK .205? - 03-09-2015, 02:54 AM

Hey,

I've now spark plugs from BMS,
but i read on forums that some are using NGKs with reduced gap to 0.205

whats the difference and what would motivate to go for NGKs?

what does reducing the gap does, performance wise?


2007 E92 335
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Terry @ BMS Terry @ BMS is offline
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Default 03-09-2015, 08:13 AM

For tuned vehicles I prefer the NGKs gapped at .022.


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Socal Hopeless Socal Hopeless is offline
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Default 03-09-2015, 08:37 AM

I've had a tooth Fall off into my cylinder trying to use the NGK's.

I've also had them break during installation, when I get new plugs down the road I'll probably go with Bosch.

Just my experience, I could just be an idiot.


07, AT JB4 E40.
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Default 03-09-2015, 10:01 AM

Is this the new NGK part Number ILZKBR7B8DG 95770?


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08 E82 Built engine/trans Speedtech ST 6466
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Socal Hopeless Socal Hopeless is offline
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Default 03-09-2015, 10:38 AM

Quote:
Originally Posted by kennejp
Is this the new NGK part Number ILZKBR7B8DG 95770?
NGK N54 N55 5992 Gappable Plug (ALL 6)
Note NGK has changed their part number for these plugs to 95770.



Reg. $133.00
Only $72.00 for All 6 Plugs
Worldwide Shipping Available.
Estimate Shipping by adding to cart and entering in your ZIP code or country.

BMW Performance Parts accessories


from burgertuning.


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Default 03-09-2015, 11:51 AM

Quote:
Originally Posted by Socal Hopeless
I've had a tooth Fall off into my cylinder trying to use the NGK's.

I've also had them break during installation, when I get new plugs down the road I'll probably go with Bosch.

Just my experience, I could just be an idiot.
Yikes thats no joke!


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Socal Hopeless Socal Hopeless is offline
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Default 03-09-2015, 11:54 AM

Quote:
Originally Posted by natedog7700
Yikes thats no joke!
I'm lucky I didn't lose my cylinder, the tooth fell off after about 5,000 Miles of use, weak.


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Default 03-09-2015, 05:11 PM

Quote:
Originally Posted by Socal Hopeless
I've had a tooth Fall off into my cylinder trying to use the NGK's.

I've also had them break during installation, when I get new plugs down the road I'll probably go with Bosch.

Just my experience, I could just be an idiot.
I've heard this happen quite commonly which makes me worried in giving them a go... The Bosch seem to be fine even for highly tuned vehicles?

Question, would e85 negate the 'one step colder' plugs anyway?
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Default 03-09-2015, 05:27 PM

I've used Bosch ones, tried NGK and didn't see improvments on the logs, so switched back to bosch.
I really like the OEM style bosch plugs.
Not sure if one step colder plugs are needed when you use high mix of ethanol.


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Nugs Nugs is offline
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Default 03-09-2015, 05:52 PM

Quote:
Originally Posted by Socal Hopeless
I've had a tooth Fall off into my cylinder trying to use the NGK's.

I've also had them break during installation, when I get new plugs down the road I'll probably go with Bosch.

Just my experience, I could just be an idiot.
I had one NGK break soon after installation, the ceramic part came loose and dropped down covering the tip.
Still using them though.

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Default 03-09-2015, 06:02 PM

damn this makes me really hesitant to switch out my old plugs for the new NGKs I just got. I heard of that one guy melting one of his plugs but this seems like a reoccurring issue...


2008 e61 535xit: VTT GCs, Fuel-it PI, fuelab FPR w/ return line, stage 2 lpfp, fuelab "700" inline pump, RB external PCV, VRSF 7.5" race FMIC, Inlets, outlet, AR ***, 3" chargepiping, 3" exhaust, JB4, BMS PI controller
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jyamona jyamona is offline
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Default 03-09-2015, 06:29 PM

Jeez how are you people installing these? Hah... I hadn't heard of / seen any issues with the NGK outside of this thread. I've ran mine for 5-6k miles so far, no issue. gapped to .022"
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Nugs Nugs is offline
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Default 03-09-2015, 07:46 PM

With a hammer, how else are you supposed to do it?
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Default 03-09-2015, 08:31 PM

No issue whatsoever on 2 cars for past 2.5 years.
Never heard of any complaints on the NGKs prior.


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Default 03-09-2015, 08:58 PM

Quote:
Originally Posted by Nugs
With a hammer, how else are you supposed to do it?


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Default 03-10-2015, 12:10 AM

Terry,

I see BMS sells gapable NGKs already on the website,
I think it would be fantastic to sell already gaped ones,

As for me, i would like to test them, i'm getting little bit tuned step by step, and i dont have necessary tools to gap them,

what do you think about it?


2007 E92 335
ST - GTW3684
JB4 G5, ST Pump Flash, Fuel-It Stage 1, Meth
MT (after swap),
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Default 03-10-2015, 04:06 AM

A $5 feeler gauge...you are reducing the plug gap so very easy to do.
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Default 03-10-2015, 09:51 AM

Quote:
Originally Posted by Levan-i
Hey,

I've now spark plugs from BMS,
but i read on forums that some are using NGKs with reduced gap to 0.205

whats the difference and what would motivate to go for NGKs?

what does reducing the gap does, performance wise?
Levan for your car go with OEM(Bosch) plugs. By the way how is crankshaft issues, fixed?


2008 335XI(E92) AT/ garrett gtx3582r with jpworks manifold 1.06AR housing/ tial mv-s 38mm wgs(13.5 psi springs)/ tial bov/ fuel it level1 upgrade/ index 12 injectors/ N20 Map sensor/JB4 ST TS BEF with MHD/ Alpina Flash for now.
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Default 03-10-2015, 07:25 PM

10k on mine gapped .022. Running like a champ.


2007 e92 auto
Jb4/dci/e85blend/e85flash/fuel-it stage2
12.53 @ 114
after ***: 11.92 @ 117.98
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Levan-i's Avatar
Levan-i Levan-i is offline
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Default 03-11-2015, 02:21 AM

Taron
Hey Taron,

I've fixed it 1 hour ago,
finaly i can rev without any errors,

will be installing FMIC soon

I will log before and after


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Default 04-18-2017, 03:07 PM

Not trying to bring a thread back from the dead, but how many people experienced NGK's breaking while in use? Teeth falling off? Really?? I ordered NGKs the other day and now im pretty concerned about this.


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sdpatt sdpatt is offline
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Default NGK's Okay - 04-24-2017, 06:11 AM

I was reading through this thread because I was getting ready to replace the NGK 95770 plugs that I gapped to the recommended (by Terry) 0.022" when I installed them 56,000(!) miles ago and I was nearing the 60K CBM recommended replacement interval. I have not had a misfire on this set of plugs (and ignition coils) for all of those miles with the JB4 on maps 1 and 5.

Many of those miles were covered while driving with the cruise control on or in stop and go traffic during my 90-mile round trip to work each day. I mention that because there are limited opportunities in heavy traffic where I can watch the fuel come boost gauge show the JB4-enabled 15 psig that makes this engine so much fun.

During installation, I was careful when setting the gap to not damage the iridium "dots" on the plug tips and handled them like $13-a-piece jewelry to ensure that they were installed in good condition. I have had only positive experience with the NGK plugs in the N54/JB4 combination.

On the other hand, with the OEM Bosch plugs, I have had short-lived (20K) life spans before notable misfires under heavy boost.

Scott
'07 E90 335i JB4
173K Miles

Last edited by sdpatt; 04-24-2017 at 06:14 AM.. Reason: Add signature
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Limpmode Limpmode is offline
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Default 04-24-2017, 05:17 PM

The old rule is you can only drop a spark plug twice. Once on the ground, and once in a trash can.
It's easy to do while installing, but if you drop one it's best to trash it and get a new one. Sometimes you won't even know if they've been dropped before you receive them. Just wondering if this might have contributed to some of these failures.


2007 335i; JB4 G5, MHD BEF, BMS DCI, Phoenix CP, Tial BOV, MAP OC, BMS OCC, 1320 Down *****, MMP Inlets, RB Ext PCV, Mishimoto OCC, BMS Meth, N20 TMAP, VTT stock CHRA=billet comp wheels, Blk powdercoat style 124 Wheels (5series staggered), 275/35/18 Firestone rears.
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Default NGK OK - 04-25-2017, 01:12 AM

I recently purchased and installed NGK spark plug from BMS. Although it is still running only about 100 miles, there is no problem such as misfire. I feel that the way of gap adjustment is a problem as a cause of failure. Since the spark plug is a very delicate part, if you adjust it roughly it feels like a tooth broken or a ceramic part is broken. It is also felt that using the spark plug which has been used once and the gap has been expanded and used again is high risk. Tips to not fail spark plug


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Default 04-27-2017, 06:06 PM

A little off subject, but I'm going to install new Bosch plugs and coils.

I've seen NOT to use anti-sieze and/or dielectric grease on plugs and /or boots.
I've also seen to use only COPPER a/s and/or only a little bit of d/g on upper part of ceramic on plug.

What say you guys??


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2010 535i M-Sport w/Sport AT, Alpine White w/Natural Leather, type-135 wheels w/spacers & Coilovers --- JB4 G5 ISO Trebila (Map-6) Custom Tune, Custom Meth Setup, VRSF 3" free-flow D/Ps, MMPe DCIs, Wagner 1060 Stepped FMIC, VRSF Chargepipe/Tial BOV, BMS Oil Cooler Valve
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