Finally Changed my Spark Plugs

JB4-335 · 08-28-2011, 08:26 PM

I finally got a around to changing my plugs yesterday after having them sitting in my garage for almost three months. My car was idling really rough and these poor plugs got abused quite badly as I did alot of testing of octane boosters and alcohol/ethanol race fuels. Car is idling perfectly now. Thanks to Paul (mcmn) for letting me have his Burger Motorsport Spark plug socket. Took a total of 30 minutes.

Orlin · 08-28-2011, 08:56 PM

Nice work Edwin, man those things took a beating.

JB4-335 · 08-28-2011, 08:59 PM

Quote:

Originally Posted by Orlin

Nice work Edwin, man those things took a beating.

Yeh they were cooked Matt. I knew they were gonna be bad. I think I'm gonna change them every 15,000klms if not sooner.

ansch · 08-28-2011, 09:12 PM

where's the best place to get these plugs from?

Stuart@BMRAutowerkes · 08-28-2011, 09:23 PM

did you change coil packs as well?

Orlin · 08-28-2011, 09:25 PM

I got mine from here

JB4-335 · 08-28-2011, 09:43 PM

Quote:

Originally Posted by ansch

where's the best place to get these plugs from?

It's not a very common plug but most places like Repco or Supercheap can order them in for you. It's a Bosch plug part #ZGR6STE2. Cost's anywhere between $18-$25 each or you can but them from BMW for $45 (that's cause the plug has BMW printed on it).

JB4-335 · 08-28-2011, 09:44 PM

Quote:

Originally Posted by bmroxm5

did you change coil packs as well?

No need. My car has only done 22,000klms.

qship · 08-29-2011, 01:38 AM

Out of curiosity, what lessons did you learn. From my experience there is no such thing as a good (off the shrlf) octane booster. Regardless of how much or little you use, they all seem to foul the plugs eventually and despite their denials, the O2 sensor and injectors too.

What was your experience?

JB4-335 · 08-29-2011, 02:22 AM

Quote:

Originally Posted by qship

Out of curiosity, what lessons did you learn. From my experience there is no such thing as a good (off the shrlf) octane booster. Regardless of how much or little you use, they all seem to foul the plugs eventually and despite their denials, the O2 sensor and injectors too.

What was your experience?

STAY AWAY FROM OCTANE BOOSTER!! I used a few brands with race fuel just so I could run more boost but they are not good for the car at all. They foul the plugs, reduce injector life and make your exhaust tips go orange. I think they do work and in my case I upped my boost from 14.5 psi to 16-17 psi but I wouldn't recommend it.

BMW86 · 08-29-2011, 02:43 AM

See what all that octane booster does to your plugs Edwin!! They look nasty! I'll be changing mine in about 10k. I'm changing mine every 25k for now. May look at doing 15-20k intervals instead. Having the socket makes it a lot cheaper.

JB4-335 · 08-29-2011, 05:13 AM

Quote:

Originally Posted by BMW86

See what all that octane booster does to your plugs Edwin!! They look nasty! I'll be changing mine in about 10k. I'm changing mine every 25k for now. May look at doing 15-20k intervals instead. Having the socket makes it a lot cheaper.

Lol. The car feels so much better and I gave it plenty on the way home tonight and it felt very responsive. It's probably my imagination as well as the 100% meth I have in the tank.
I torqued the new plugs at 23nm.

ansch · 08-29-2011, 07:29 AM

Mine has been idling a bit rough even since the injector "leak" issue. While they replaced the injectors i suspected the plugs may be fouled. I tried to give it an italian tune up but that didn't help either :roll eyes:

Just like to check, is this the socket to get?
http://www.ebay.com.au/itm/110677295...9#ht_504wt_922

also found these on ebay with $12 shipping
http://cgi.ebay.com.au/ws/eBayISAPI....#ht_500wt_1156

Jeef Beef · 08-29-2011, 07:59 AM

Man those babies are cooked!

BMW86 · 08-29-2011, 09:13 AM

Quote:

Originally Posted by JB4135

Lol. The car feels so much better and I gave it plenty on the way home tonight and it felt very responsive. It's probably my imagination as well as the 100% meth I have in the tank.
I torqued the new plugs at 23nm.

I bet it's a combination of both! Lol at 100%. You're always pushing the limits!

JB4-335 · 08-29-2011, 09:58 PM

Those poor plugs even went a few rounds on 18psi with no meth just some race fuel.

Lester · 08-29-2011, 10:16 PM

A little sandpaper would clean those right up.

JB4-335 · 08-29-2011, 10:48 PM

Quote:

Originally Posted by Lester

A little sandpaper would clean those right up.

BMW86 · 08-30-2011, 12:44 AM

Quote:

Originally Posted by JB4135

Those poor plugs even went a few rounds on 18psi with no meth just some race fuel.

I thought you tried running 17psi one time on premium 98 fuel too? Either way those plugs took a beating!

JB4-335 · 08-30-2011, 12:53 AM

Quote:

Originally Posted by BMW86

I thought you tried running 17psi one time on premium 98 fuel too? Either way those plugs took a beating!

Yes I did Vinney. You name it and I did it to these babies. Happy there gone.

BMW86 · 08-30-2011, 12:59 AM

Quote:

Originally Posted by JB4135

Yes I did Vinney. You name it and I did it to these babies. Happy there gone.

Kiwi Peter · 08-30-2011, 06:01 AM

Hi all
I had a chat with my Bosch man some time ago about the DI plugs and asked for a deal,
Advan are happy to pass on the deal we have many in stock the price is $15.00 each inc gst, we can fit them as well if you like.
It is a good idea to replace them at least every 20,000 km forget what the book says.
N54/55

08-28-2011, 08:26 PM	#1
JB4-335 Brigadier General 168 Rep 3,093 Posts Drives: E92 BSM & E70 AW Join Date: Feb 2011 Location: Australia iTrader: (1)	Finally Changed my Spark Plugs I finally got a around to changing my plugs yesterday after having them sitting in my garage for almost three months. My car was idling really rough and these poor plugs got abused quite badly as I did alot of testing of octane boosters and alcohol/ethanol race fuels. Car is idling perfectly now. Thanks to Paul (mcmn) for letting me have his Burger Motorsport Spark plug socket. Took a total of 30 minutes. Attached Images
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08-28-2011, 08:56 PM	#2
Orlin Major 44 Rep 1,359 Posts Drives: F30 335i Join Date: Feb 2009 Location: Brisbane, Australia iTrader: (1)	Nice work Edwin, man those things took a beating.
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08-28-2011, 09:12 PM	#4
ansch Captain 33 Rep 645 Posts Drives: SGM 135i Join Date: Dec 2008 Location: Brisbane, Australia iTrader: (1)	where's the best place to get these plugs from?
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08-28-2011, 09:23 PM	#5
Stuart@BMRAutowerkes Major General 808 Rep 5,530 Posts Drives: a black car Join Date: Sep 2010 Location: Sydney iTrader: (3)	did you change coil packs as well?
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08-28-2011, 09:25 PM	#6
Orlin Major 44 Rep 1,359 Posts Drives: F30 335i Join Date: Feb 2009 Location: Brisbane, Australia iTrader: (1)	I got mine from here
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08-29-2011, 01:38 AM	#9
qship Disillusioned bourgeois capitalist pig! 21 Rep 488 Posts Drives: Blue Join Date: May 2008 Location: Malbin, Ozstralia iTrader: (0)	Out of curiosity, what lessons did you learn. From my experience there is no such thing as a good (off the shrlf) octane booster. Regardless of how much or little you use, they all seem to foul the plugs eventually and despite their denials, the O2 sensor and injectors too. What was your experience? __________________ You can lead a fool to knowledge but you cannot make him think!
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08-29-2011, 02:43 AM	#11
BMW86 Major General 398 Rep 9,156 Posts Drives: RS3 Sedan / Macan S Join Date: Jul 2008 Location: Australia iTrader: (0)	See what all that octane booster does to your plugs Edwin!! They look nasty! I'll be changing mine in about 10k. I'm changing mine every 25k for now. May look at doing 15-20k intervals instead. Having the socket makes it a lot cheaper.
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08-29-2011, 07:29 AM	#13
ansch Captain 33 Rep 645 Posts Drives: SGM 135i Join Date: Dec 2008 Location: Brisbane, Australia iTrader: (1)	Mine has been idling a bit rough even since the injector "leak" issue. While they replaced the injectors i suspected the plugs may be fouled. I tried to give it an italian tune up but that didn't help either :roll eyes: Just like to check, is this the socket to get? http://www.ebay.com.au/itm/110677295...9#ht_504wt_922 also found these on ebay with $12 shipping http://cgi.ebay.com.au/ws/eBayISAPI....#ht_500wt_1156
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08-29-2011, 07:59 AM	#14
Jeef Beef Lord Captain Commander 110 Rep 3,093 Posts Drives: a sleeper Join Date: Oct 2009 Location: Sydney, Australia iTrader: (0)	Man those babies are cooked! __________________ E82 135i M-sport: SGM/6MT/Black
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08-29-2011, 09:58 PM	#16
JB4-335 Brigadier General 168 Rep 3,093 Posts Drives: E92 BSM & E70 AW Join Date: Feb 2011 Location: Australia iTrader: (1)	Those poor plugs even went a few rounds on 18psi with no meth just some race fuel.
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08-29-2011, 10:16 PM	#17
Lester Brigadier General 295 Rep 3,350 Posts Drives: Join Date: Oct 2007 iTrader: (0)	A little sandpaper would clean those right up.
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08-30-2011, 06:01 AM	#22
Kiwi Peter 160 Rep 1,460 Posts Drives: E92 M3 2012 Edition 500 Join Date: May 2011 Location: Cambridge, New Zealand iTrader: (0)	skycat Hi all I had a chat with my Bosch man some time ago about the DI plugs and asked for a deal, Advan are happy to pass on the deal we have many in stock the price is $15.00 each inc gst, we can fit them as well if you like. It is a good idea to replace them at least every 20,000 km forget what the book says. N54/55
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