Spark Plug Swap to NGK 5992

tcw · 01-09-2013, 08:00 PM

Thought I would share some pictures from my spark plug change. 15K miles. Look good and the valve cover gasket isn't leaking either. Also these spark plugs aren't necessary for stock turbos. Pictures are in the order of ALL-6-5-4-3-2-1

fordperf · 07-11-2013, 10:19 AM

So you went from OEM Bosch to NGK 5992? How are they running?

tcw · 07-11-2013, 10:53 AM

Running great so far, no issues.

3000GT MR · 07-11-2013, 11:42 AM

Were you running full boost on the stockers? You'll like the 5992's.

akotten · 07-11-2013, 11:49 AM

Does anyone have pictures of the 5992 after 15-20k miles?

Red_Bean_Bun · 07-11-2013, 12:31 PM

Quote:

Originally Posted by 3000GT MR

Were you running full boost on the stockers? You'll like the 5992's.

Any reasons why ?

fordperf · 07-11-2013, 12:48 PM

Quote:

Originally Posted by tcw

Running great so far, no issues.

Can I inquire what you gapped them to?

tcw · 07-11-2013, 12:59 PM

Quote:

Originally Posted by 3000GT MR

Were you running full boost on the stockers? You'll like the 5992's.

I was running ~16-17 IIRC on JB4 back then. I replaced the plugs about month or two before the 6262 (this thread is from Jan.).

Quote:

Originally Posted by fordperf

Can I inquire what you gapped them to?

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

fordperf · 07-11-2013, 01:00 PM

Quote:

Originally Posted by tcw

I was running ~16-17 IIRC on JB4 back then. I replaced the plugs about month or two before the 6262 (this thread is from Jan.).

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

So you gapped to .022 as per the article?

enrita · 07-11-2013, 01:55 PM

i gapped them 0.6 mm just because it was easier.

ksalih · 07-11-2013, 02:00 PM

I switched from the OEM plugs to the 5992's and like them so far. I am typically pushing about 17psi when running e85, 15 when running straight 91. I sometimes notice a bit of backfire after I changed the plugs, but I'm not sure if it's related to that or the fact that I also adjusted my wastegate at the same time I installed the new plugs (should have waited so I could isolate the plugs better). Nonetheless I love them, my misfire issues when running e85 have diminished (used to misfire at the top of 3rd, or any sudden WOT in 3rd, but may have been blame to the 20k miles I had on my OEM plugs..) I gapped them to 0.022".

tcw · 07-11-2013, 06:47 PM

Quote:

Originally Posted by akotten

Does anyone have pictures of the 5992 after 15-20k miles?

These were at about 5k miles.

Quote:

Originally Posted by fordperf

So you gapped to .022 as per the article?

Yep

Also sorry for the size... don't copy my finger print.

robc1976 · 07-11-2013, 08:43 PM

15,000 miles with E85 with every tank 60%

fordperf · 07-12-2013, 09:41 AM

Excellent, I love hi-res pics!

I am running bone stock, and replacing my plugs is coming up soon. Should I bother with the 5992 or just buy the Bosch again? I've always bought NGK on all my cars and was most satisfied. I read the horror stories on here about people putting in the 5992's and having MORE problems, but I mean they're plugs.. if you didnt gap them correctly then maybe, but really, how can they screw anything up?

135Pats · 07-12-2013, 09:49 AM

Quote:

Originally Posted by fordperf

Excellent, I love hi-res pics!

I am running bone stock, and replacing my plugs is coming up soon. Should I bother with the 5992 or just buy the Bosch again? I've always bought NGK on all my cars and was most satisfied. I read the horror stories on here about people putting in the 5992's and having MORE problems, but I mean they're plugs.. if you didnt gap them correctly then maybe, but really, how can they screw anything up?

If theyre gapped properly they wont cause any issues, like you said its "just" plugs. But the benefits are pretty modest on stock turbos, going a step colder really helps the upgraded turbo folks. If youre making alot of power on stockers (fbo+meth+e85 type power) then it would make some sense.

enrita · 07-12-2013, 11:28 AM

Quote:

Originally Posted by 135Pats

If theyre gapped properly they wont cause any issues, like you said its "just" plugs. But the benefits are pretty modest on stock turbos, going a step colder really helps the upgraded turbo folks. If youre making alot of power on stockers (fbo+meth+e85 type power) then it would make some sense.

exactly , no need for NGK at all. just run OEM Bosch

akotten · 07-13-2013, 10:02 AM

I'm on stock turbos, yet my biggest gripe about the Bosch plugs is how quickly they wear out after 20k miles or so. I'm curious to see how the 5992's I have in now will will over time. So far, they've been perfect!

NiVeDh · 07-13-2013, 12:44 PM

Maybe irrelevant but does anyone think the presence of just one ground electrode in the NGK plug vs. three in the Bosch presents any performance inconsistencies? In some applications, I've heard of people "indexing" the plugs to account for such an asymmetry.

enrita · 07-13-2013, 01:18 PM

Quote:

Originally Posted by NiVeDh

Maybe irrelevant but does anyone think the presence of just one ground electrode in the NGK plug vs. three in the Bosch presents any performance inconsistencies? In some applications, I've heard of people "indexing" the plugs to account for such an asymmetry.

no

01-09-2013, 08:00 PM	#1
tcw Captain 52 Rep 748 Posts Drives: 2008 335i Join Date: Jan 2012 Location: Atlanta, GA iTrader: (2)	Spark Plug Swap to NGK 5992 Thought I would share some pictures from my spark plug change. 15K miles. Look good and the valve cover gasket isn't leaking either. Also these spark plugs aren't necessary for stock turbos. Pictures are in the order of ALL-6-5-4-3-2-1 __________________ 2008 335I E92, AW, VFF700, 18" Forgestar F14, M3 front/side, M-tech rear, AMS IC, H&R Touring Cup Kit suspension, HID AE, ER Charge Pipe & Synapse BOV, CIC Retrofit, Quafie, DSS, Defiv Lockdown, SPEC 2+/Steel SMFW, Walbro 450
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07-11-2013, 10:19 AM	#2
fordperf Private First Class 7 Rep 169 Posts Drives: 2009 335xi LCI Join Date: Feb 2012 Location: NJ iTrader: (0)	So you went from OEM Bosch to NGK 5992? How are they running?
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07-11-2013, 10:53 AM	#3
tcw Captain 52 Rep 748 Posts Drives: 2008 335i Join Date: Jan 2012 Location: Atlanta, GA iTrader: (2)	Running great so far, no issues. __________________ 2008 335I E92, AW, VFF700, 18" Forgestar F14, M3 front/side, M-tech rear, AMS IC, H&R Touring Cup Kit suspension, HID AE, ER Charge Pipe & Synapse BOV, CIC Retrofit, Quafie, DSS, Defiv Lockdown, SPEC 2+/Steel SMFW, Walbro 450
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07-11-2013, 11:42 AM	#4
3000GT MR Major 265 Rep 1,392 Posts Drives: 09 335i/3000gt vr4 Join Date: Jun 2012 Location: Sav GA iTrader: (6)	Were you running full boost on the stockers? You'll like the 5992's. __________________ 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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07-11-2013, 11:49 AM	#5
akotten Major 38 Rep 1,079 Posts Drives: 2004 M3 Join Date: Mar 2011 Location: Wichita, KS iTrader: (2)	Does anyone have pictures of the 5992 after 15-20k miles? __________________ 2004 E46 M3 \| Imola Red on Cinnamon \| Slicktop \| Manual Seats \| 6spd MT \|
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07-11-2013, 01:55 PM	#10
enrita Major General 159 Rep 7,378 Posts Drives: 335i - Big turbos Join Date: Sep 2008 Location: Italian in Sweden iTrader: (0)	i gapped them 0.6 mm just because it was easier. __________________ 07 335i AT - MOTIV 750 - MHD E85 BMS flash - BMS PI - JB4G5 - Okada Coils - NGK 5992 Plugs - Helix IC - Snow Stg. 3 - Stett CP - Custom midpipes with 100 HJS Cats - Bastuck Quad - PSS10 - QUAIFE LSD - BMS OCC - Forge DVs - AR OC - ALCON BBK - M3 Chassi - Dinan CP - Velocity M rear Toe arms - Advan RZ-DF - LUX H8 - Level 10 AT upgrade
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07-11-2013, 02:00 PM	#11
ksalih Lieutenant 71 Rep 510 Posts Drives: 2018 M2 LCI Join Date: Mar 2012 Location: Gilbert, AZ iTrader: (1)	I switched from the OEM plugs to the 5992's and like them so far. I am typically pushing about 17psi when running e85, 15 when running straight 91. I sometimes notice a bit of backfire after I changed the plugs, but I'm not sure if it's related to that or the fact that I also adjusted my wastegate at the same time I installed the new plugs (should have waited so I could isolate the plugs better). Nonetheless I love them, my misfire issues when running e85 have diminished (used to misfire at the top of 3rd, or any sudden WOT in 3rd, but may have been blame to the 20k miles I had on my OEM plugs..) I gapped them to 0.022". __________________ '2018 F87 M2 LCI \| LBB \| GC Camber Plates \| Ohlins R&T 90/190N/mm \| 18x10 et33 square 275/35 \| MPe \| Poly Transmission Mounts \| Recaro Sportster CS
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07-11-2013, 08:43 PM	#13
robc1976 DIYER 614 Rep 5,521 Posts Drives: E90 335i Join Date: Mar 2012 Location: Illinois iTrader: (14)	15,000 miles with E85 with every tank 60% Attached Images __________________ JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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07-12-2013, 09:41 AM	#14
fordperf Private First Class 7 Rep 169 Posts Drives: 2009 335xi LCI Join Date: Feb 2012 Location: NJ iTrader: (0)	Excellent, I love hi-res pics! I am running bone stock, and replacing my plugs is coming up soon. Should I bother with the 5992 or just buy the Bosch again? I've always bought NGK on all my cars and was most satisfied. I read the horror stories on here about people putting in the 5992's and having MORE problems, but I mean they're plugs.. if you didnt gap them correctly then maybe, but really, how can they screw anything up?
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07-13-2013, 10:02 AM	#17
akotten Major 38 Rep 1,079 Posts Drives: 2004 M3 Join Date: Mar 2011 Location: Wichita, KS iTrader: (2)	I'm on stock turbos, yet my biggest gripe about the Bosch plugs is how quickly they wear out after 20k miles or so. I'm curious to see how the 5992's I have in now will will over time. So far, they've been perfect! __________________ 2004 E46 M3 \| Imola Red on Cinnamon \| Slicktop \| Manual Seats \| 6spd MT \|
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07-13-2013, 12:44 PM	#18
NiVeDh Major General 422 Rep 8,004 Posts Drives: '08 E90 335i, '99 E36 M3 Join Date: Apr 2009 Location: Houston, TX & Atlanta, GA iTrader: (132) Garage List 2008 BMW 335i Sedan [8.66]	Maybe irrelevant but does anyone think the presence of just one ground electrode in the NGK plug vs. three in the Bosch presents any performance inconsistencies? In some applications, I've heard of people "indexing" the plugs to account for such an asymmetry.
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