Which Sparkplugs? N55 (mods)

boneheaddoctor · 01-07-2019, 08:07 PM

I just bought a set of those NGK plugs was going to put them in tonight but don't have a deepwell 12 point socket to do it.

boneheaddoctor · 01-14-2019, 07:44 PM

Found a great video on doing this job. Not obvious for the first timer like me since I haven't done this on this car yet, but once you've seen it, you wonder how you didn't figure it out sooner. My issue was #5 is pulling timing about 10 degrees compared to the other 5 under hard acceleration, with or without a tune, its just more obvious with the tune. I'm replacing plugs since it has 83K miles and who knows if these are original., and swapping coil packs with #1 to see if it clears up or moves to #1, once the snow melts since #1 is super easy to get to if it is the coil pack..

Zel335 · 01-17-2019, 10:30 AM

Quote:

Originally Posted by boneheaddoctor

I just bought a set of those NGK plugs was going to put them in tonight but don't have a deepwell 12 point socket to do it.

Make sure you get a thinwall 12 point socket. It's required for the job.

boneheaddoctor · 01-18-2019, 10:22 PM

Quote:

Originally Posted by Zel335

Make sure you get a thinwall 12 point socket. It's required for the job.

Still waiting for the snow to melt to get to it....but thats what I guessed. Should be near an Autozone tomorrow to get the socket tomorrow.

boneheaddoctor · 01-19-2019, 09:37 PM

Got my thin-wall socket from Autozone, just waiting for the snow to melt and have some time to do this.

areohbeeM340i · 02-08-2019, 02:19 PM

Do you need colder plugs for a Bootmod3 Stage 1 car? My car has close to 42k miles, all stock now, goin BM3 Stage 1/Charge Pipes soon

Alpine-F80 · 09-27-2019, 10:58 AM

Quote:

Originally Posted by SSE60M5

Do you need colder plugs for a Bootmod3 Stage 1 car? My car has close to 42k miles, all stock now, goin BM3 Stage 1/Charge Pipes soon

No

pw0n · 09-27-2019, 04:31 PM

If I were to switch off between stock and BM3 stage 1 and 2, should I stick to OEM or one step colder?

n55david · 09-27-2019, 05:01 PM

Quote:

Originally Posted by pw0n

If I were to switch off between stock and BM3 stage 1 and 2, should I stick to OEM or one step colder?

do the ngk colder plug.. its fine with the stock tune.

Alpine-F80 · 10-21-2019, 06:45 AM

Quote:

Originally Posted by Phantom10R

Quote:

Originally Posted by pw0n

If I were to switch off between stock and BM3 stage 1 and 2, should I stick to OEM or one step colder?

do the ngk colder plug.. its fine with the stock tune.

I don't think that would be my recommendation actually, and I just installed NGK 97506 (1 step colder) and I'm MHD Stg 1...seems our N55's are pretty particular about their plugs.

I first tried the 97506 on their stock gap (~.03) and got some misfires and went into limp mode. I re-gapped to ~.023 and now seems to be running smooth, but my logs still aren't as clean as before the new plugs. If I were to do it all over again I'd just go with stock bosch plugs, they're plenty fine up to anything on stock turbo.

n55david · 10-22-2019, 02:27 PM

Quote:

Originally Posted by Alpine_F30

I don't think that would be my recommendation actually, and I just installed NGK 97506 (1 step colder) and I'm MHD Stg 1...seems our N55's are pretty particular about their plugs.

I first tried the 97506 on their stock gap (~.03) and got some misfires and went into limp mode. I re-gapped to ~.023 and now seems to be running smooth, but my logs still aren't as clean as before the new plugs. If I were to do it all over again I'd just go with stock bosch plugs, they're plenty fine up to anything on stock turbo.

I have the plugs in question and have zero issues. This isnt a complicated thing, its a spark plug.

F36GC_NYC · 01-25-2020, 01:51 PM

Quote:

Originally Posted by Phantom10R

I have the plugs in question and have zero issues. This isnt a complicated thing, its a spark plug.

so its safe to assume these "NGK 97506" are the correct plugs for the n55? when going stage 2?

johnung · 01-25-2020, 02:19 PM

Quote:

Originally Posted by F36GC_NYC

Quote:

Originally Posted by Phantom10R

I have the plugs in question and have zero issues. This isnt a complicated thing, its a spark plug.

so its safe to assume these "NGK 97506" are the correct plugs for the n55? when going stage 2?

It's right in the BootMod3 N55 Stage2 website recommendations. I've been using them on mine for almost a year with that tune and nothing but smooth running.

NGK 97506 gapped down to 0.022"

Caution that there have been reports of counterfeit NGKs floating around the market. They look fine, but run poorly. I'd only buy them from a reliable vendor such as Burger Tuning or FCP Euro. Expect $14-$16/plug shipped.

F36GC_NYC · 01-25-2020, 02:36 PM

Quote:

Originally Posted by johnung

It's right in the BootMod3 N55 Stage2 website recommendations. I've been using them on mine for almost a year with that tune and nothing but smooth running.

NGK 97506 gapped down to 0.022"

Caution that there have been reports of counterfeit NGKs floating around the market. They look fine, but run poorly. I'd only buy them from a reliable vendor such as Burger Tuning or FCP Euro. Expect $14-$16/plug shipped.

$84 bucks got it, thank you sir.

01-07-2019, 08:07 PM	#133
boneheaddoctor Private 14 Rep 60 Posts Drives: 2012 E92 335i Join Date: Sep 2017 Location: Northern Virginia iTrader: (0)	I just bought a set of those NGK plugs was going to put them in tonight but don't have a deepwell 12 point socket to do it.
	Appreciate 0 Quote

01-14-2019, 07:44 PM	#134
boneheaddoctor Private 14 Rep 60 Posts Drives: 2012 E92 335i Join Date: Sep 2017 Location: Northern Virginia iTrader: (0)	Found a great video on doing this job. Not obvious for the first timer like me since I haven't done this on this car yet, but once you've seen it, you wonder how you didn't figure it out sooner. My issue was #5 is pulling timing about 10 degrees compared to the other 5 under hard acceleration, with or without a tune, its just more obvious with the tune. I'm replacing plugs since it has 83K miles and who knows if these are original., and swapping coil packs with #1 to see if it clears up or moves to #1, once the snow melts since #1 is super easy to get to if it is the coil pack.. __________________ 2012 E92 335i Black Sapphire Metallic/ Oyster 7" VRSF FMIC,Afe pipes, MHD 2+,xHP Stage3 2017 BMW 328d xDrive Wagon, M Sport package 1987 GMC 2500 6.2 Banks Sidwinder, nv4500 1979 Mercedes 300SD Turbo Diesel Last edited by boneheaddoctor; 01-14-2019 at 07:50 PM..
	Appreciate 0 Quote

01-19-2019, 09:37 PM	#137
boneheaddoctor Private 14 Rep 60 Posts Drives: 2012 E92 335i Join Date: Sep 2017 Location: Northern Virginia iTrader: (0)	Got my thin-wall socket from Autozone, just waiting for the snow to melt and have some time to do this. __________________ 2012 E92 335i Black Sapphire Metallic/ Oyster 7" VRSF FMIC,Afe pipes, MHD 2+,xHP Stage3 2017 BMW 328d xDrive Wagon, M Sport package 1987 GMC 2500 6.2 Banks Sidwinder, nv4500 1979 Mercedes 300SD Turbo Diesel
	Appreciate 0 Quote

02-08-2019, 02:19 PM	#138
areohbeeM340i Private First Class 50 Rep 110 Posts Drives: 2020 BMW M340i Join Date: Sep 2015 Location: Earth iTrader: (0)	Do you need colder plugs for a Bootmod3 Stage 1 car? My car has close to 42k miles, all stock now, goin BM3 Stage 1/Charge Pipes soon
	Appreciate 0 Quote

09-27-2019, 04:31 PM	#140
pw0n Second Lieutenant 43 Rep 205 Posts Drives: BMW 435i Join Date: Aug 2019 Location: Seattle iTrader: (0)	If I were to switch off between stock and BM3 stage 1 and 2, should I stick to OEM or one step colder?
	Appreciate 0 Quote

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search