M3 Spark Plugs in N20 F30?

Stubok · 01-26-2017, 08:43 AM

Quote:

Originally Posted by x328x

Quote:

Originally Posted by Stubok

There is already a diy on YouTube for n20.

Correct me if I am wrong but the only extra step with the m3 plugs is you have to adjust the gap

Yes you should always check the gap of plugs. I believe mine were gapped to 0.03" (0.7mm), which is the stock M3 gap. I left it at that, but I can see how 0.02" would be better in the highest tuning/boosting range.

Cammy5 · 01-26-2017, 08:51 AM

What would you estimate the amount of labor time to do something like this on the N20? I may have the shop that did my tune and is installed my FMIC next month do this at the time same time.

Stubok · 01-26-2017, 09:34 AM

Quote:

Originally Posted by Cammy5

What would you estimate the amount of labor time to do something like this on the N20? I may have the shop that did my tune and is installed my FMIC next month do this at the time same time.

With the right tools (which they should have) I don't think more than 1 hour. Took me 2 because I pulled off all the trim covering the back part of the engine for access to plug 4. But as the YouTube shows it's not necessary.

smallba · 01-26-2017, 03:54 PM

Quote:

Originally Posted by motorwerkeman

Seems like these are working really well for the JB4 guys; smallba - are you JB4 as well?

Does anyone have these with the BMS Stage 1? Installing it soon and contemplating if it would be wise to do these plugs at the same time.

Yes, I'm using a JB4

Quote:

Originally Posted by x328x

Hey u think u can wright up a diy. Pics of tools used as well.

Search "BMW F30 328i Spark Plug Change" on Youtube

14mm 12 point Thinwall 3/8 Sparkplug Socket
3/8 Drive Swivel
3/8 Drive Extension (The back sparkplug is tight, i don't recall the size extension i used)
Spark Plug Gapper to check the gap

anotheran · 06-13-2018, 12:25 PM

Sorry to bring back an old thread. I was thinking to do this change since I'm planning to go stage 2 soon but found this on BM3's wiki:

Quote:

NOTE: S55 OEM plugs are highly prone to cracking even on stock vehicles. Some have used them in the past on their N55 motors without realizing the heat range is identical and they're in fact of worse quality than N55 OEM plugs. We don't suggest using the S55 OEM plugs when tuning your motors and the NGK SILZKBR8D8S (97506) have been found to be far better.

https://bootmod3.atlassian.net/wiki/...+and+which+gap

Doesn't sound like the M3/M4 plugs should be used. Are N20 flex plugs (SILZKBR9F8S) needed/recommended for N20/N26 FBO?

BunkerJ · 06-14-2018, 08:54 AM

Quote:

Originally Posted by anotheran

Sorry to bring back an old thread. I was thinking to do this change since I'm planning to go stage 2 soon but found this on BM3's wiki:

https://bootmod3.atlassian.net/wiki/...+and+which+gap

Doesn't sound like the M3/M4 plugs should be used. Are N20 flex plugs (SILZKBR9F8S) needed/recommended for N20/N26 FBO?

https://www.ngk.com/product.aspx?zpid=41489

That's all you need.

anotheran · 06-14-2018, 09:21 AM

Quote:

Originally Posted by BunkerJ

https://www.ngk.com/product.aspx?zpid=41489

That's all you need.

Those are the ones that come on 2014MY +. Looks like i don't need to do anything

BunkerJ · 06-14-2018, 09:37 AM

Quote:

Originally Posted by anotheran

Those are the ones that come on 2014MY +. Looks like i don't need to do anything

Yup! They're typically standard on N20s nowadays. I still had Bosch plugs when I swapped but I also had about 45k on them, so NBD.

The flex fuel plugs kill me honestly. I've seen this part number but not even NGK refers to them as "...BR8F8S". You can't find them on their site or in the catalog. So if they do exist, they exist under a different part number and someone just assumed they would be an "F".

MacklinUSOB · 06-14-2018, 12:22 PM

Thought about upgrading to S55 plugs but decided against it. The N20 (ones linked by Bunkerj) plugs are used in the last gen M5 and M6. Good enough for me.

I was starting to get hesitation a little after 60k on the first set of plugs, swapped them out per BMW interval and viola, a much smoother powerband and no hesitation to speak of. I'm runnnig 21lbs of boost on JB+.

BunkerJ · 06-14-2018, 12:49 PM

Quote:

Originally Posted by MacklinUSOB

Thought about upgrading to S55 plugs but decided against it. The N20 (ones linked by Bunkerj) plugs are used in the last gen M5 and M6. Good enough for me.

I was starting to get hesitation a little after 60k on the first set of plugs, swapped them out per BMW interval and viola, a much smoother powerband and no hesitation to speak of. I'm runnnig 21lbs of boost on JB+.

Mine were swapped at 33k (according to the service history) and then I swapped them at about 80k.

MacklinUSOB · 06-15-2018, 07:23 AM

Quote:

Originally Posted by BunkerJ

Quote:

Originally Posted by MacklinUSOB

Thought about upgrading to S55 plugs but decided against it. The N20 (ones linked by Bunkerj) plugs are used in the last gen M5 and M6. Good enough for me.

I was starting to get hesitation a little after 60k on the first set of plugs, swapped them out per BMW interval and viola, a much smoother powerband and no hesitation to speak of. I'm runnnig 21lbs of boost on JB+.

Mine were swapped at 33k (according to the service history) and then I swapped them at about 80k.

Unfortunately I don't have my records going back so far, but I guess it's safe to assume mine were changed around then, too. I thought the interval was 60000 miles, turns out it is 60000 kilometers, so that makes perfect sense.

BunkerJ · 06-15-2018, 08:42 AM

Quote:

Originally Posted by MacklinUSOB

Unfortunately I don't have my records going back so far, but I guess it's safe to assume mine were changed around then, too. I thought the interval was 60000 miles, turns out it is 60000 kilometers, so that makes perfect sense.

If you bought it from a BMW dealer they should have it, unless the previous owner didn't service it there.

MacklinUSOB · 06-15-2018, 09:38 AM

Quote:

Originally Posted by BunkerJ

If you bought it from a BMW dealer they should have it, unless the previous owner didn't service it there.

Yeah I've been tempted to see if I can woo my local service department to run my VIN for the records, I bought the car from CarMax so they didn't provide me with much of anything.

BunkerJ · 06-15-2018, 03:59 PM

Quote:

Originally Posted by MacklinUSOB

Yeah I've been tempted to see if I can woo my local service department to run my VIN for the records, I bought the car from CarMax so they didn't provide me with much of anything.

They shouldn't have any issue providing you with them. I just asked my SA via email and my next one had it attached.

marcozen · 08-14-2018, 04:58 AM

Quote:

Originally Posted by Dark_M4

what are you guys doing all the m3 m4 owners and m5 install n20 plugs even n54 guys because it is 1 step colder for the m3 m4 m5 and 2 step colder for n54 we gap them 0.020inch under 22.5psi and 0.018inches over 22.5psi . YOU ARE DOING IT WRONG AND INSTALLING 1 STEP HOTTER PLUGS
L O L

Newbie here - Hopefully somebody can clear up this confusion ....

BunkerJ · 08-14-2018, 09:19 AM

Quote:

Originally Posted by Dark_M4

what are you guys doing all the m3 m4 owners and m5 install n20 plugs even n54 guys because it is 1 step colder for the m3 m4 m5 and 2 step colder for n54 we gap them 0.020inch under 22.5psi and 0.018inches over 22.5psi . YOU ARE DOING IT WRONG AND INSTALLING 1 STEP HOTTER PLUGS
L O L

I've explained that a lot, trust me. Lol. People see that they're putting in M3/M4 plugs and think they're better.

SILZKBR8D8S are the plugs you want from NGK.

marcozen · 08-14-2018, 11:56 AM

Noted BunkerJ - Just ordered 4 pcs.

marcozen · 08-15-2018, 01:18 AM

Thanks.

Picard ///M · 08-15-2018, 08:04 AM

Quote:

Originally Posted by BunkerJ

I've explained that a lot, trust me. Lol. People see that they're putting in M3/M4 plugs and think they're better.

SILZKBR8D8S are the plugs you want from NGK.

Just ordered mine as well.

This consistent with BM3's own advice which I received and as others have noted.

01-26-2017, 08:51 AM	#24
Cammy5 First Lieutenant 159 Rep 397 Posts Drives: 2016 BMW 328i M Sport 6MT Join Date: Oct 2016 Location: Raleigh, NC iTrader: (6)	What would you estimate the amount of labor time to do something like this on the N20? I may have the shop that did my tune and is installed my FMIC next month do this at the time same time. __________________ 2016 BMW 328i M Sport 6MT (Mineral Grey over Coral Red) BPC DME Custom Stage 1 Tune Evolution Racerwerks Competition Intercooler & Chargepipe *M Performance Big Brake Kit
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06-14-2018, 12:22 PM	#31
MacklinUSOB Captain 518 Rep 891 Posts Drives: f30 328i 6MT Sport Join Date: Jan 2017 Location: Connecticut iTrader: (0)	Thought about upgrading to S55 plugs but decided against it. The N20 (ones linked by Bunkerj) plugs are used in the last gen M5 and M6. Good enough for me. I was starting to get hesitation a little after 60k on the first set of plugs, swapped them out per BMW interval and viola, a much smoother powerband and no hesitation to speak of. I'm runnnig 21lbs of boost on JB+. __________________ 328i RWD \| MW on CRed Slick Top \| 6MT \| BM3 \| MPE \| GPlus FMIC \| CSF Radiator \| Millway Street Camber Plates & Monoballs \| KW V2 6k/18k Swift Springs \| F80 LCA/TS \| SPL Bump Steer Kit \| APEX SM-10 \| R-S4 \| DS2500 \| RBF600 \| SS Lines \| Past: E36 328is & E38 740i Last edited by MacklinUSOB; 06-14-2018 at 12:29 PM..
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08-14-2018, 11:56 AM	#39
marcozen Private 11 Rep 56 Posts Drives: BMW F30 328i 2012 Join Date: Aug 2018 Location: BimmerLand iTrader: (0)	Noted BunkerJ - Just ordered 4 pcs.
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08-15-2018, 01:18 AM	#40
marcozen Private 11 Rep 56 Posts Drives: BMW F30 328i 2012 Join Date: Aug 2018 Location: BimmerLand iTrader: (0)	Thanks.
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