Which Sparks Plugs for tuned N63

just_dirty · 07-31-2018, 03:40 PM

Hey guys what spark plugs do you recommend for a tuned (JB4) N63? I know the N54 guys go a step colder, not sure if we need to do the same.

Just purchased the car and would like to refresh the ignition system before adding the tune.

Thanks

addy27 · 08-07-2018, 02:48 PM

You might want to pick up the ones that are used in the Alpina's (look up realoem under engine electrical for Alpina B6 or B7)

AZ_Bmw_550 · 08-07-2018, 06:24 PM

Quote:

Originally Posted by addy27

You might want to pick up the ones that are used in the Alpina's (look up realoem under engine electrical for Alpina B6 or B7)

That's a good idea, but it shows the same part number, so Alpina didn't go colder.

Edit: Actually I have to correct myself, NGK website uses the same number for both vehicles, REALOEM has an NGK for Alpina, (same as regular 650i according to NGK), but REALOEM lists a Bosch plug for the 650i. No idea what the differences are between the two.

135i_vs_ · 08-17-2018, 12:05 PM

I had looked into this same topic.
I ended up going to stock spec plugs (same heat range) from Denso.
I was getting the drivetrain malfunction after having put 1000 miles with a tune on my plugs that already had 34k on them.

With new fresh plugs, this problem would be solved.

Unless you are pushing 550hp+, I don't see a need for colder plugs as there are other drawbacks such as poor idle.

AZ_Bmw_550 · 08-31-2018, 06:51 PM

Just my experience here:

I was having misfire issues on a tuned N63TU. I went to factory S63TU plugs and gapped them down to 24. The performance is much better now, no misfire, less timing retard and idles fine.

Also, 40k miles on the car and the plugs looked bad. Graying around the bottom of the insulator on every one.

just_dirty · 09-19-2018, 08:36 AM

Quote:

Originally Posted by AZ_Bmw_550

Just my experience here:

I was having misfire issues on a tuned N63TU. I went to factory S63TU plugs and gapped them down to 24. The performance is much better now, no misfire, less timing retard and idles fine.

Also, 40k miles on the car and the plugs looked bad. Graying around the bottom of the insulator on every one.

Thank you much appreciated.

07-31-2018, 03:40 PM	#1
just_dirty Lieutenant 69 Rep 534 Posts Drives: RR Sport, F10 550, F450, E92 Join Date: Feb 2014 Location: Nashville, TN iTrader: (0)	Which Sparks Plugs for tuned N63 Hey guys what spark plugs do you recommend for a tuned (JB4) N63? I know the N54 guys go a step colder, not sure if we need to do the same. Just purchased the car and would like to refresh the ignition system before adding the tune. Thanks __________________ Frozen Black Widebody E92 : VRSF CP, N54Tuning Downpipes, Tial BOV, DCI, MHD Flash, Aquamist HSF-3 Meth kit Dual Nozzle, Megan Racing Toe Arms,Megan Racing Camber Arm, Megan Racing Trailing Arm, IND Delrin Subframe Bushings, M3 Control Arms,Fortune 500 Series Coilovers, Square 18x11 Apex Ec7 w/ 315/30/18 Hoosier R7's
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08-07-2018, 02:48 PM	#2
addy27 Captain 388 Rep 949 Posts Drives: F10 550i Join Date: Jan 2008 Location: Bay Area, CA iTrader: (2)	You might want to pick up the ones that are used in the Alpina's (look up realoem under engine electrical for Alpina B6 or B7)
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08-17-2018, 12:05 PM	#4
135i_vs_ Captain 72 Rep 697 Posts Drives: M5, 135i, 335d, F10 550xi Join Date: Sep 2011 Location: CT iTrader: (0)	I had looked into this same topic. I ended up going to stock spec plugs (same heat range) from Denso. I was getting the drivetrain malfunction after having put 1000 miles with a tune on my plugs that already had 34k on them. With new fresh plugs, this problem would be solved. Unless you are pushing 550hp+, I don't see a need for colder plugs as there are other drawbacks such as poor idle.
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08-31-2018, 06:51 PM	#5
AZ_Bmw_550 Private First Class 52 Rep 183 Posts Drives: 2015 BMW 650i GC Join Date: Feb 2015 Location: United States iTrader: (0) Garage List 2011 BMW 550i [0.00]	Just my experience here: I was having misfire issues on a tuned N63TU. I went to factory S63TU plugs and gapped them down to 24. The performance is much better now, no misfire, less timing retard and idles fine. Also, 40k miles on the car and the plugs looked bad. Graying around the bottom of the insulator on every one.
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