Spark Plugs

N54Angel · 08-15-2016, 07:02 PM

What kind of spark plugs do you guys use on your car?

Is the NGK IRIDIUM IX good spark plugs to get? Or should I stick with the bosh OEM plugs? What do you guys gap them at? I'm pushing 14PSI if that helps

Jake335is · 08-15-2016, 07:26 PM

If you're running boost above 10psi it is recommended to ditch spark plugs and
replace it with good quality glow plugs...

Go away Bryan!!!!

BTW

N54Angel · 08-15-2016, 07:27 PM

Quote:

Originally Posted by Jake335is

If you're running boost above 10psi is is recommended to ditch spark plugs and
replace it with good quality glow plugs...

Go away Bryan!!!!

BTW

I'm asking a question and I searched everywhere and could not find any thread about theses spark plugs.

John 070 · 08-15-2016, 07:51 PM

I used Bosch not oem as they were like $3 less maybe $2, same part #

AM330i · 08-15-2016, 08:24 PM

I'm running 13 psi and I'm running oem plugs with no issues. Most people that are running higher boost are sticking with oem plugs, they work fine. You will just have to change them more often, I think it is like every 15k miles when running a tune. Don't get them from bmw, they are over $20 a piece I think, I got mine from amazon.

Antetokounmpo · 08-15-2016, 10:40 PM

N54Angel · 08-15-2016, 10:41 PM

Quote:

Originally Posted by AM330i

I'm running 13 psi and I'm running oem plugs with no issues. Most people that are running higher boost are sticking with oem plugs, they work fine. You will just have to change them more often, I think it is like every 15k miles when running a tune. Don't get them from bmw, they are over $20 a piece I think, I got mine from amazon.

Hmm, yea that senna true. Might just stick to OEM

2011z435is · 08-18-2016, 02:41 PM

Quote:

Originally Posted by AM330i

I'm running 13 psi and I'm running oem plugs with no issues. Most people that are running higher boost are sticking with oem plugs, they work fine. You will just have to change them more often, I think it is like every 15k miles when running a tune. Don't get them from bmw, they are over $20 a piece I think, I got mine from amazon.

most ppl running higher boost are NOT on stock plugs lol. Im on 20-21psi now and use the ngks

Mr. Tasty · 08-18-2016, 02:53 PM

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I run these, OEM part number and running MHD stage 2. Great price and work perfectly.

Edit: Accidentally posted the spark plugs from my Z3M. Sorry

N54Angel · 08-18-2016, 03:00 PM

Quote:

Originally Posted by Mr. Tasty

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

I run these, OEM part number and running MHD stage 2. Great price and work perfectly.

A little to cheap don't you think?

JasW · 08-18-2016, 03:29 PM

Quote:

Originally Posted by N54Angel

A little to cheap don't you think?

These are the ones you want:

https://www.amazon.com/gp/product/B00NNYLBS0/

The other Boschs are for the E36, I believe, but whatever. They're all available for around $45 or so on Amazon, though I'm sure you can pay more for them elsewhere. The NGKs go for ~50% more. I'm running 20-21 PSI boost on an E60 tune, and I'm currently on the OEM plugs the dealer installed ~8K miles ago.

mojobmw_e90 · 08-18-2016, 03:34 PM

I run 25psi on my hexon, stock Bosch plugs with Bosch coils. About 7k on them now

Gizm0 · 08-18-2016, 03:41 PM

Quote:

Originally Posted by AM330i

I'm running 13 psi and I'm running oem plugs with no issues. Most people that are running higher boost are sticking with oem plugs, they work fine. You will just have to change them more often, I think it is like every 15k miles when running a tune. Don't get them from bmw, they are over $20 a piece I think, I got mine from amazon.

Here is what happened to my OEM plugs at 20psi... Since then, I switched to NGK 5992. You need to run colder plugs with higher boost to avoid running hot, knocking, timing drops and possibly melting your plugs like I did...

Mr. Tasty · 08-18-2016, 04:28 PM

Quote:

Originally Posted by N54Angel

A little to cheap don't you think?

they are the OEM spark plugs down to the Realoem Partnumber.

Edit: I apologize, those were for my Z3M

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
These are for the 335i

TrAcK TRaP · 08-18-2016, 09:06 PM

21psi stock turbos here with oem bosch plugs no issues..

04gto · 08-18-2016, 11:20 PM

I have used OEM (Bosch), Bosch (aftermarket) and NGK. NGK were good but died quicker, maybe 15k. Bosch I have been able to get 18-20k. My car is FBO running 18-20 psi on stock turbos. Although lately the price has been coming down so much on the Bosch that I am beginning to wonder if any of them are counterfeit. Two years ago I could not find a set of 6 below $70, now they are under $50. But so far, no problems with any I have purchased.

N54Angel · 08-18-2016, 11:33 PM

Quote:

Originally Posted by 04gto

I have used OEM (Bosch), Bosch (aftermarket) and NGK. NGK were good but died quicker, maybe 15k. Bosch I have been able to get 18-20k. My car is FBO running 18-20 psi on stock turbos. Although lately the price has been coming down so much on the Bosch that I am beginning to wonder if any of them are counterfeit. Two years ago I could not find a set of 6 below $70, now they are under $50. But so far, no problems with any I have purchased.

Thanks with help

JasW · 08-19-2016, 05:16 AM

Quote:

Originally Posted by 04gto

Two years ago I could not find a set of 6 below $70, now they are under $50.

Life is good! Now that we're done with plugs, let's all go back and argue about oil. LiquiMoly FTW!

mweisdorfer · 08-20-2016, 05:31 AM

You should replace the plugs if your close to the 45k interval and coils especially if your over 100k on the coils, when thinking about running a tune.

A tune will eat plugs more often. Depending on psi, you maybe are changing them every 30k vs every 45k.

Oil would obviously have to be changed more often too. I'd consider a 5w-40 weight vs a 5w-30 as well.,

08-15-2016, 07:02 PM	#1
N54Angel Second Lieutenant 42 Rep 281 Posts Drives: 2008 BMW 335XI Join Date: Apr 2016 Location: Colorado iTrader: (0)	Spark Plugs What kind of spark plugs do you guys use on your car? Is the NGK IRIDIUM IX good spark plugs to get? Or should I stick with the bosh OEM plugs? What do you guys gap them at? I'm pushing 14PSI if that helps
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08-15-2016, 07:26 PM	#2
Jake335is Private 64 Rep 75 Posts Drives: 2011 335is Join Date: Mar 2016 Location: Colorado iTrader: (1)	If you're running boost above 10psi it is recommended to ditch spark plugs and replace it with good quality glow plugs... Go away Bryan!!!! BTW Last edited by Jake335is; 08-15-2016 at 07:51 PM..
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08-15-2016, 07:51 PM	#4
John 070 Lieutenant General 1707 Rep 14,829 Posts Drives: 335i cpe Join Date: Oct 2006 Location: ZSP/ZPP/ZCW iTrader: (0)	I used Bosch not oem as they were like $3 less maybe $2, same part #
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08-15-2016, 08:24 PM	#5
AM330i First Lieutenant 90 Rep 386 Posts Drives: 08 535xi 11 328xi Join Date: Oct 2011 Location: Rochester, NY iTrader: (0) Garage List 2023 BMW M440 [0.00]	I'm running 13 psi and I'm running oem plugs with no issues. Most people that are running higher boost are sticking with oem plugs, they work fine. You will just have to change them more often, I think it is like every 15k miles when running a tune. Don't get them from bmw, they are over $20 a piece I think, I got mine from amazon.
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08-15-2016, 10:40 PM	#6
Antetokounmpo Brigadier General 1552 Rep 3,475 Posts Drives: E90 6MT FBO; '18 F150 Platinum Join Date: Jul 2013 Location: WI iTrader: (3) Garage List 2018 Ford F-150 Pla ... [0.00] 2008 BMW 335xi [0.00]	__________________ 2008 335xi 6MT \| VRSF Catless DP \| VRSF 7" FMIC \| VRSF CP \| TIAL BOV \| DCI \| MHD 2+ BC Racing BR \| Stoptech 600 \| Firehawk Indy 500 255 Square \| Atric Altimax 225 Sq. 2018 F-150 Platinum 701A \| FX4 \| 3.5 EcoBeast
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08-18-2016, 02:53 PM	#9
Mr. Tasty Captain 428 Rep 707 Posts Drives: AW 335i Mperformance Join Date: Apr 2016 Location: Gilbert iTrader: (0)	https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 I run these, OEM part number and running MHD stage 2. Great price and work perfectly. Edit: Accidentally posted the spark plugs from my Z3M. Sorry Last edited by Mr. Tasty; 08-18-2016 at 04:32 PM..
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08-18-2016, 03:34 PM	#12
mojobmw_e90 Major 380 Rep 1,497 Posts Drives: 2014 E63S Join Date: Oct 2014 Location: Chicago IL iTrader: (3)	I run 25psi on my hexon, stock Bosch plugs with Bosch coils. About 7k on them now
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08-18-2016, 09:06 PM	#15
TrAcK TRaP bOrN To DiE 413 Rep 1,738 Posts Drives: 2011 E92 M3 ZCP Join Date: Apr 2013 Location: South Jersey iTrader: (0)	21psi stock turbos here with oem bosch plugs no issues..
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08-18-2016, 11:20 PM	#16
04gto Private First Class 107 Rep 161 Posts Drives: 2023 330e Join Date: Nov 2014 Location: Los Angeles, CA iTrader: (5)	I have used OEM (Bosch), Bosch (aftermarket) and NGK. NGK were good but died quicker, maybe 15k. Bosch I have been able to get 18-20k. My car is FBO running 18-20 psi on stock turbos. Although lately the price has been coming down so much on the Bosch that I am beginning to wonder if any of them are counterfeit. Two years ago I could not find a set of 6 below $70, now they are under $50. But so far, no problems with any I have purchased. __________________ v12 Flash, Turbonator, The Tornado, FD47 power booster, Turbo sound whistler, Nitrogen filled tires, The Ghost Pro, Joe Gibbs BR30, AFE DAS, Nut blast
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08-20-2016, 05:31 AM	#19
mweisdorfer Major General 1907 Rep 6,968 Posts Drives: 2007 Black/Black 335i e90 Join Date: Apr 2011 Location: Holly, MI iTrader: (0) Garage List 2007 BMW E90 335i [0.00] 2008 bmw x5 [0.00]	You should replace the plugs if your close to the 45k interval and coils especially if your over 100k on the coils, when thinking about running a tune. A tune will eat plugs more often. Depending on psi, you maybe are changing them every 30k vs every 45k. Oil would obviously have to be changed more often too. I'd consider a 5w-40 weight vs a 5w-30 as well.,
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