When did you change your spark plugs??

roozie2001 · 06-11-2009, 06:50 PM

Im a little over 17k on my car. Less than 1k has been with a tune. I was wondering when everyone here changed thier spark plugs. I've seen a few people on here who had the JB3 and changed thier plugs and got alot better results.

Blk07335i · 06-11-2009, 07:07 PM

Got 31000 miles. Changing them this weekend. Not having any misfires but I figure it can't hurt and a few members have experienced gains in HP from changing them.

cincy335i · 06-11-2009, 08:33 PM

Quote:

Originally Posted by roozie2001

Im a little over 17k on my car. Less than 1k has been with a tune. I was wondering when everyone here changed thier spark plugs. I've seen a few people on here who had the JB3 and changed thier plugs and got alot better results.

+1000

I have been wondering the same thing. I have 16000 and about 4000 with the JB+ @ 100%.

Dan335i · 06-11-2009, 09:09 PM

11K on my car,tuned for around 9k of that,still on original plugs.The car runs better than new after break in.Feels like it runs better every time i drive it.Started with a JB1 at 2k,went to the SSTT w/BMS intake at 2500 miles,and thats where i am today,except for cosemetic mods.

sflgator · 06-11-2009, 09:20 PM

When my car told me it was time to change the spark plugs (part of the BMW maint. program)!

roozie2001 · 06-11-2009, 09:44 PM

Quote:

Originally Posted by Dan335i

11K on my car,tuned for around 9k of that,still on original plugs.The car runs better than new after break in.Feels like it runs better every time i drive it.Started with a JB1 at 2k,went to the SSTT w/BMS intake at 2500 miles,and thats where i am today,except for cosemetic mods.

wow 2007 with 11k. you dont ever drive that car do you? i've had my car for almost 15 mos and im on my way to 18k

joec500 · 06-11-2009, 10:05 PM

32k miles

Dan335i · 06-11-2009, 11:54 PM

Quote:

Originally Posted by roozie2001

wow 2007 with 11k. you dont ever drive that car do you? i've had my car for almost 15 mos and im on my way to 18k

I,m retired and really dont to much driving,except locally.Besides i have a Jeep Grand Cherokee for the winters and rainy days so i dont get my 335 dirty since i keep it super detailed all the time.I,m 52 and have been retired for 10 years,so all my last 3 cars were also low miles,kept clean rides.Last three before the 335 were an 01 Camaro SS,03 Evo,06 Evo BR350 IX.Also have a Harley to play with.

edo · 06-11-2009, 11:59 PM

23k miles

Andras · 06-12-2009, 12:42 AM

Quote:

Originally Posted by sflgator

When my car told me it was time to change the spark plugs (part of the BMW maint. program)!

+1
the BT tellsy ou exactly the shape of your spark plugs

BUT
I am still searching for something much better than the original ones and can't truly understand why DENSO first offered their iridium ones for the N54 and then canceled such offer from their pricelist

Terrance28 · 06-12-2009, 01:16 AM

At 28k.

Makushr1 · 06-12-2009, 08:17 AM

Is there a specific amount of miles you should change them by?

335e92tx · 06-12-2009, 08:35 AM

Quote:

Originally Posted by Makushr1

Is there a specific amount of miles you should change them by?

When a misfire code is logged according to T

http://www.n54tech.com/forums/showthread.php?t=4314

oddjob2021 · 06-12-2009, 01:56 PM

20k when i did an 5k oil change

dmurray14 · 06-12-2009, 02:00 PM

Quote:

Originally Posted by Andras

+1
the BT tellsy ou exactly the shape of your spark plugs

BUT
I am still searching for something much better than the original ones and can't truly understand why DENSO first offered their iridium ones for the N54 and then canceled such offer from their pricelist

I'm pretty sure it tells you what the car GUESSES the shape of the spark plugs are. Not sure how it would know any better...

Mote · 06-12-2009, 02:10 PM

Just changed them out at 12,800 miles.
Gained 30whp on the dyno by doing so. I run plenty of race gas and drive hard. I'm a firm believer that tuned turbo cars need to do this far more frequently than NA cars.

hun77777 · 06-12-2009, 02:36 PM

from my personal experience, i suggest one to do it around 20k - 25k miles. i was shocked by the condition of spark plugs at 30k miles. really bad... especially with tune...

dmurray14 · 06-12-2009, 03:08 PM

Hmm, maybe I'll change mine now at 24k. What's the cost on this? I'm assuming it's a DIY?

jpsimon · 06-12-2009, 03:14 PM

At around 28-29k miles now, haven't changed them yet because i haven't had a reason to... no issues of any sort yet

Lowcruzr · 06-12-2009, 03:28 PM

Quote:

Originally Posted by hun77777

from my personal experience, i suggest one to do it around 20k - 25k miles. i was shocked by the condition of spark plugs at 30k miles. really bad... especially with tune...

I'd be very interested in seeing pics of what members here consider "really bad" plugs. Does anyone have pics of their actual used plugs or am I the only geek here?

hun77777 · 06-12-2009, 09:10 PM

i saw couple members posted up under dyi and others. what i meant by really bad was the prongs were light brownish color not black... you will know.

i didn't think that i had spark plug issues until i changed it. you get less mis-fires and notice bit of gain. according to some members, they actually gain hp after just changing plugs...

Mr. 5 · 06-12-2009, 09:16 PM

35k

View Poll Results: When did you change your spark plugs?
Less than 15k miles	7	15.22%
15k-20k	6	13.04%
20k-25k	10	21.74%
25k + and still going	23	50.00%
Voters: 46. You may not vote on this poll

06-11-2009, 06:50 PM	#1
roozie2001 Just some guy 49 Rep 1,531 Posts Drives: 2008 White 335i sedan Join Date: Apr 2008 Location: Houston, TX iTrader: (4)	When did you change your spark plugs?? Im a little over 17k on my car. Less than 1k has been with a tune. I was wondering when everyone here changed thier spark plugs. I've seen a few people on here who had the JB3 and changed thier plugs and got alot better results. __________________ 2008 BMW 335i/Sedan/Alpine White/Terra/Steptronic/Premium Package/Sports package/Comfort Access/USB/Sirius
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06-11-2009, 07:07 PM	#2
Blk07335i Captain 61 Rep 938 Posts Drives: 2024 G87 M2 Join Date: Mar 2007 Location: Boston area iTrader: (4)	Got 31000 miles. Changing them this weekend. Not having any misfires but I figure it can't hurt and a few members have experienced gains in HP from changing them.
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06-11-2009, 09:09 PM	#4
Dan335i Lieutenant Colonel 32 Rep 1,786 Posts Drives: 07 335i coupe 6MT,w/sp. pack. Join Date: Oct 2007 Location: orange county NY iTrader: (2)	11K on my car,tuned for around 9k of that,still on original plugs.The car runs better than new after break in.Feels like it runs better every time i drive it.Started with a JB1 at 2k,went to the SSTT w/BMS intake at 2500 miles,and thats where i am today,except for cosemetic mods.
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06-11-2009, 09:20 PM	#5
sflgator Major General 148 Rep 5,389 Posts Drives: '09 MB C63 AMG & '08 MB GL450 Join Date: Oct 2006 Location: U.S. iTrader: (1)	When my car told me it was time to change the spark plugs (part of the BMW maint. program)! __________________ \|2009 RENNtech MB C63 AMG \| Black/Black Leather/Black Maple \| Premium II \| MultiMedia \| iPod \| \| TeleAid \| Charcoal Filter Delete \| BMC High-Flow Air Filters \| High-Flow Secondary Cats \| Clear Side Markers \|
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06-11-2009, 10:05 PM	#7
joec500 Brigadier General 125 Rep 3,004 Posts Drives: it has 4 wheels Join Date: Jul 2008 Location: San Francisco iTrader: (10)	32k miles
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06-11-2009, 11:59 PM	#9
edo ****** 53 Rep 886 Posts Drives: E92 335i Join Date: Nov 2008 Location: hell iTrader: (1)	23k miles __________________ Mods: RB turbos, JB4, BMS DCI, Scoops, Forge DVs, ar design catless DPs, Milltek exhaust system, Helix FMIC, Quaife LSD, VK MotorWerks OC Kit, Bilstein B16 PSS10
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06-12-2009, 01:16 AM	#11
Terrance28 Brigadier General 109 Rep 3,334 Posts Drives: Crimson Red E92 Join Date: Nov 2007 Location: Killeen, TX iTrader: (17)	At 28k. __________________ Mods list got too long, lets just say more than enough.
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06-12-2009, 08:17 AM	#12
Makushr1 Lieutenant 114 Rep 480 Posts Drives: 2008 335i Sedan Auto Join Date: May 2008 Location: Texas iTrader: (2)	Is there a specific amount of miles you should change them by? __________________ 2008 Montego Blue E90 ll Custom K&N Dual Cone Intake ll Aluminum OEM Pedals ll 25% Tint ll M3 Spoiler To Do (Cosmetic): Black Line lights, Lux 4.0 Angel Eyes, 19" CSL HyperBlack To Do (Performance): Exhaust (still undecided which brand), SSTT, FMIC (unsure what type)
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06-12-2009, 01:56 PM	#14
oddjob2021 ASR Turbos+LSD+Meth= :D 73 Rep 1,517 Posts Drives: E92 335i Join Date: May 2007 Location: Miami, FL iTrader: (0) Garage List 2007 E92 335i [0.00]	20k when i did an 5k oil change __________________ 2007 335i Coupe Mods: Check the Garage
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06-12-2009, 02:10 PM	#16
Mote Colonel 138 Rep 2,162 Posts Drives: 2008 E92 - 1991 E30 Join Date: Jan 2008 Location: Beverly Hills, CA iTrader: (0)	Just changed them out at 12,800 miles. Gained 30whp on the dyno by doing so. I run plenty of race gas and drive hard. I'm a firm believer that tuned turbo cars need to do this far more frequently than NA cars.
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06-12-2009, 02:36 PM	#17
hun77777 Brigadier General 198 Rep 4,647 Posts Drives: SG E92 Join Date: Nov 2007 Location: Seattle WA iTrader: (58)	from my personal experience, i suggest one to do it around 20k - 25k miles. i was shocked by the condition of spark plugs at 30k miles. really bad... especially with tune... __________________ SGE92TT......................... 12.331 Sec @ 117.89 Mph............................POWERED BY l BMS DCI l HELIX IC l FORGE DVs l RR OCC & CP & SCOOPS l AR 3" DPs l AE QUADs l BLISTEIN PSS10 l P3 VENT GUAGE l VISHNU PROCEDE V5 AUTOTUNE l Lots of Window Stickers
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06-12-2009, 03:08 PM	#18
dmurray14 The Stig 31 Rep 1,232 Posts Drives: Quickly Join Date: Apr 2005 Location: US iTrader: (1)	Hmm, maybe I'll change mine now at 24k. What's the cost on this? I'm assuming it's a DIY? __________________
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06-12-2009, 03:14 PM	#19
jpsimon Team Zissou 3065 Rep 10,197 Posts Drives: 2022 AWD M3 Comp - SMB Join Date: Dec 2006 Location: CT iTrader: (7)	At around 28-29k miles now, haven't changed them yet because i haven't had a reason to... no issues of any sort yet
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06-12-2009, 09:10 PM	#21
hun77777 Brigadier General 198 Rep 4,647 Posts Drives: SG E92 Join Date: Nov 2007 Location: Seattle WA iTrader: (58)	i saw couple members posted up under dyi and others. what i meant by really bad was the prongs were light brownish color not black... you will know. i didn't think that i had spark plug issues until i changed it. you get less mis-fires and notice bit of gain. according to some members, they actually gain hp after just changing plugs... __________________ SGE92TT......................... 12.331 Sec @ 117.89 Mph............................POWERED BY l BMS DCI l HELIX IC l FORGE DVs l RR OCC & CP & SCOOPS l AR 3" DPs l AE QUADs l BLISTEIN PSS10 l P3 VENT GUAGE l VISHNU PROCEDE V5 AUTOTUNE l Lots of Window Stickers
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06-12-2009, 09:16 PM	#22
Mr. 5 Modder Raider 753 Rep 8,633 Posts Drives: M3 Join Date: Apr 2007 Location: Surf City, HB iTrader: (31) Garage List 2007 e90 335i [8.00]	35k __________________ e36 M3 Coupe, e36 325i Sedan e90 335i--SOLD Best 60-130-------------9.15 Seconds------------------WWW.MR5RACING.COM
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