Which Sparkplugs? N55 (mods)

zinner · 04-03-2017, 11:48 AM

S55 plugs work well for me.

mr_kay · 04-03-2017, 12:20 PM

Quote:

Originally Posted by yoandry

Quote:

Originally Posted by ocN55

PSA

the NGK 5992 are NOT one step colder than stock N55 plugs, same heat range. N54 is a different story, which is why it was such a popular choice.
http://www.e90post.com/forums/showthread.php?t=1224377

I'd look into copper plugs, better performance but much shorter intervals.

So, Are you saying that this NGK 5992 old#, now NGK 95770 1 step colder is the same as stock n55?

NGK 5992 is one step colder than N54, but OEM N55 is already one step colder than N54. So yes

Luminous · 04-03-2017, 12:56 PM

Depending how much boost you're running I'd recommend the S55 or N20 oem plugs.

Zel335 · 04-10-2017, 05:39 PM

So does anyone have the answer to what is the one step colder plug for the n55?

shivaswrath · 04-11-2017, 09:23 PM

I thought answer was S55.

We need a tuner or expert to weigh in. Even shops here don't know. I blew 4 plugs and coil packs due to poor gapping on stock plugs and High boost, so def don't experiment with this crap.

Zel335 · 04-11-2017, 10:37 PM

Quote:

Originally Posted by shivaswrath

I thought answer was S55.

We need a tuner or expert to weigh in. Even shops here don't know. I blew 4 plugs and coil packs due to poor gapping on stock plugs and High boost, so def don't experiment with this crap.

I wasn't sure if the S55 was the one step colder, however that does seem to be correct. Another person posted that it is indeed the 97506, spendy bastards, guess I'll try to get them off ebay and save $4 per plug.

sicmadek · 04-12-2017, 09:49 AM

Bms told me ngk 5992 at .022 so thats what i did

Zel335 · 04-12-2017, 10:46 AM

Quote:

Originally Posted by sicmadek

Bms told me ngk 5992 at .022 so thats what i did

According to everyone else that info isn't correct for the N55.

sicmadek · 04-12-2017, 11:06 AM

Quote:

Originally Posted by Zel335

Quote:

Originally Posted by sicmadek

Bms told me ngk 5992 at .022 so thats what i did

According to everyone else that info isn't correct for the N55.

Its your car. My logs say the plugs are good. Ill swap to s55 plugs when i go ps2.

Chicken_Joe · 04-12-2017, 12:22 PM

I need to look Into this for my car

Zel335 · 04-12-2017, 04:41 PM

Quote:

Originally Posted by sicmadek

Its your car. My logs say the plugs are good. Ill swap to s55 plugs when i go ps2.

Wasn't saying it was bad you went to those plugs, was only saying they are not the one step colder like BMS said.

Insane435 · 04-13-2017, 09:59 AM

Here is what Terry from BMS sent me:

'If money is no object I like the NGK 2step colders gapped to .020" '

sicmadek · 04-13-2017, 10:32 AM

Quote:

Originally Posted by Insane435

Here is what Terry from BMS sent me:

'If money is no object I like the NGK 2step colders gapped to .020" '

But if ngk 5992 is same heat range as stock what is 2 steps colder? I was under the impression that n20 plugs were 1 step colder than 5992.

Insane435 · 04-13-2017, 10:56 AM

Quote:

Originally Posted by sicmadek

But if ngk 5992 is same heat range as stock what is 2 steps colder? I was under the impression that n20 plugs were 1 step colder than 5992.

97506 is 2 step colder. Gapped to .020"

This is sold on bms' website

sicmadek · 04-13-2017, 10:58 AM

Quote:

Originally Posted by Insane435

Quote:

Originally Posted by sicmadek

But if ngk 5992 is same heat range as stock what is 2 steps colder? I was under the impression that n20 plugs were 1 step colder than 5992.

97506 is 2 step colder. Gapped to .020"

This is sold on bms' website

So what is 1 step colder than stock then?

Insane435 · 04-13-2017, 11:00 AM

Quote:

Originally Posted by sicmadek

So what is 1 step colder than stock then?

5992 gapped to .022"

This is from Terry and is sold on their sote as well.

sicmadek · 04-13-2017, 11:01 AM

Quote:

Originally Posted by Insane435

Quote:

Originally Posted by sicmadek

So what is 1 step colder than stock then?

5992 gapped to .022"

This is from Terry and is sold on their sote as well.

Thats what i was saying before but everyone said 5992 is the same as stock

yoandry · 04-13-2017, 11:04 AM

Quote:

Originally Posted by Insane435

5992 gapped to .022"

This is from Terry and is sold on their sote as well.

But again, some people said that is wrong. That step colder is from n54 plugs not from n55. Heck the part # also changed.

Insane435 · 04-13-2017, 12:04 PM

Quote:

Originally Posted by yoandry

But again, some people said that is wrong. That step colder is from n54 plugs not from n55. Heck the part # also changed.

That could be true. Ill do some more digging.

Insane435 · 04-16-2017, 07:12 PM

Quote:

Originally Posted by Insane435

That could be true. Ill do some more digging.

Can anyone confirm the plug situation? What are people running on Map 2 cars and E85?

yoandry · 04-17-2017, 10:38 AM

Quote:

Originally Posted by Insane435

Can anyone confirm the plug situation? What are people running on Map 2 cars and E85?

Waiting on this also as I have 46k miles on my spark plugs and thinking to change them soon.
I dont have any issues that I know with the stock ones running on map2/93 - week and map5/e40 - weekends. So that may be true about that one step colder is from n54 and the same as the oem n55. For now Im leading to s55.

shivaswrath · 04-17-2017, 05:36 PM

Quote:

Originally Posted by Zel335

Quote:

Originally Posted by sicmadek

Bms told me ngk 5992 at .022 so thats what i did

According to everyone else that info isn't correct for the N55.

Confirmed don't do this! You'll blow your $hot up.

04-03-2017, 11:48 AM	#23
zinner Major 559 Rep 1,127 Posts Drives: `17 X5 35d/`15 335i/`18 M550IX Join Date: Oct 2014 Location: Raleigh, NC iTrader: (0)	S55 plugs work well for me.
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04-03-2017, 12:56 PM	#25
Luminous Captain 743 Rep 893 Posts Drives: 2019 M5 Competition Join Date: Feb 2015 Location: Westchester County, NY iTrader: (2)	Depending how much boost you're running I'd recommend the S55 or N20 oem plugs. __________________ 2019 SG M5C 2015 SO M3 6MT 2015 BSM M235xi
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04-10-2017, 05:39 PM	#26
Zel335 First Lieutenant 82 Rep 305 Posts Drives: 2012 335I Sport Join Date: Jul 2015 Location: Opelika, AL iTrader: (0)	So does anyone have the answer to what is the one step colder plug for the n55?
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04-11-2017, 09:23 PM	#27
shivaswrath Brigadier General 649 Rep 4,323 Posts Drives: 2012 335i Join Date: Apr 2008 Location: Lost in NJ iTrader: (3)	I thought answer was S55. We need a tuner or expert to weigh in. Even shops here don't know. I blew 4 plugs and coil packs due to poor gapping on stock plugs and High boost, so def don't experiment with this crap. __________________ CURRENT: 2017 RS3 (miss you guys) SOLD: 2012 335i Mineral Gray M Performance Exhaust/Brakes/Suspension/LSD\|Bav Stage 1/AMP\|\|ER CP/IC/DP/OC \| Dinan CAI/N55 PWG BIG TURBO\|BMWF30.com
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04-12-2017, 09:49 AM	#29
sicmadek Captain 223 Rep 693 Posts Drives: 2013 335i sportline Join Date: Dec 2016 Location: louisiana iTrader: (0)	Bms told me ngk 5992 at .022 so thats what i did
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04-12-2017, 12:22 PM	#32
Chicken_Joe Lieutenant Colonel 606 Rep 1,782 Posts Drives: 2013 F30 335i M Sport. EB 6M Join Date: Dec 2015 Location: Frontenac, Missouri iTrader: (3)	I need to look Into this for my car __________________ 13' 335i M Sport. EBII/Coral Red 6MT. RPI GT exhaust, Resonator delete, PS1, GFB DV , BM3 Stage 2, ER CP, VRSF DP, VRSF 5.5in Stepped FMIC, Dinan Shockware. Carbon M Performance rear diffuser. M4 trunk lip. Conti DWS06 225/40/19 and 255/35/19
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04-13-2017, 09:59 AM	#34
Insane435 Major 477 Rep 1,467 Posts Drives: 435ix M Sport EWG Join Date: Jul 2016 Location: Michigan iTrader: (1)	Here is what Terry from BMS sent me: 'If money is no object I like the NGK 2step colders gapped to .020" ' __________________ 2014 EBII 435ix - Stage 2+ Dragy: 0-60 3.61; 60-130 10.18 2020 MG M340ix - Dragy: 0-60 3.48 2018 LBB X4M40i - Stock Dragy: 0-60 4.85
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