OVer boost pushed my dying coil packs to the end!

335iNavyGuy · 08-25-2014, 04:57 PM

Third car i've installed a jb4 on where the coil pack went out withing minutes.

I guess if you have one going bad, and want to know for sure, install a jb4 lol

EDIT / UPDATE
THIS was posted quite awhile ago, when i wasnt very up on the way this stuff worked, Jb4 didnt kill my coils, it just pushed old ones over the edge. Not the JB4s fault.

Myrder · 08-25-2014, 04:59 PM

Pretty sure any tune will do it, but yes adding more boost and getting more power will show the engine's weakness really quick.

JStang · 08-25-2014, 04:59 PM

Quote:

Originally Posted by 335iNavyGuy

Third car i've installed a jb4 on where the coil pack went out withing minutes.

I guess if you have one going bad, and want to know for sure, install a jb4 lol

All tunes will bring out a bad coil, not just the JB4. Same with plugs.

brewnami · 08-25-2014, 05:07 PM

I've installed two JB4's and never had a problem with a coil pack. Though the first time, I smoked my spark plugs and the second time I changed the plugs preemptively.

335iNavyGuy · 08-25-2014, 05:15 PM

Quote:

Originally Posted by brewnami

I've installed two JB4's and never had a problem with a coil pack. Though the first time, I smoked my spark plugs and the second time I changed the plugs preemptively.

2 of the 3 cars were over 110k miles when it was installed on stock packs . the other was at 80k, it lost that one coil pack and now 40k later still running stong

ferocity02 · 08-25-2014, 05:18 PM

Quote:

Originally Posted by 335iNavyGuy

2 of the 3 cars were over 110k miles when it was installed on stock packs . the other was at 80k, it lost that one coil pack and now 40k later still running stong

How did you know the coil was bad? Codes?

Jeff@TopGearSolutions · 08-25-2014, 05:19 PM

Quote:

Originally Posted by 335iNavyGuy

2 of the 3 cars were over 110k miles when it was installed on stock packs . the other was at 80k, it lost that one coil pack and now 40k later still running stong

Shoot, with 110K of course adding a tune will cause a stock coil to go. They are lucky they lasted that long in the first place

08-25-2014, 05:49 PM

Quote:

Originally Posted by Jeff@TopGearSolutions

Shoot, with 110K of course adding a tune will cause a stock coil to go. They are lucky they lasted that long in the first place

Agreed. OP's results should not be surprising at this point.

335iNavyGuy · 08-25-2014, 06:25 PM

Quote:

Originally Posted by FCobra94

Agreed. OP's results should not be surprising at this point.

Never said they were :P Just a random comment

Eat.Sleep.Race · 08-25-2014, 07:49 PM

Me and 13000 members have JB4 with no coil pack issues lol.. The luck on your cars isn't very good i assume. Replace and move on.

tc535i · 08-25-2014, 07:56 PM

my car threw a code when I test drove it with the previous owner. he took it to a shop, got 6 new plugs and a coil.

I stayed quiet, smiled, got a great deal on the car, and installed jb4 the next week. lol

335iNavyGuy · 08-26-2014, 04:13 AM

Quote:

Originally Posted by Eat.Sleep.Race

Me and 13000 members have JB4 with no coil pack issues lol.. The luck on your cars isn't very good i assume. Replace and move on.

Its not really luck, honestly the fact that 6 stock coil packs lasted 110k miles is impressive on its own, and that i only had to replace one (54$ from autozone :P) And it took me about 20 minutes. Easy day haha

GuamX1 · 07-15-2015, 09:17 PM

What coil packs do you replace them with if they fail? Bosch? How about the one step colder NGK iridium plugs, what gap do we set them too? Thank you

Jeff@TopGearSolutions · 07-15-2015, 09:22 PM

Quote:

Originally Posted by Guam135i

What coil packs do you replace them with if they fail?

OEM BMW

optigrab · 07-16-2015, 10:35 AM

Quote:

As a dealer tech who changes these bloody things out sometimes twice a day,

BMW uses 3 manufacturers for their coils

Bosch
Bremi
Delphi

Most of the n51/n52s has Bosch's then by the time they started going bad we replaced them with Bremi, which consequently also sucked, and so now were sticking in the new Delphi's which are the same as the N55, used this S55. THey are the superceed number for us, so now when n51/n52/n54's have been coming in for coils We have to replace all of them with the Delphi's if there's misfires on more than 2 cyls. You can't mix and match, though sometimes i've seen guys accidentally use the new ones mixed with old and don't see any problems.

long story short

they all do the same thing and will scope similarly on a same engine comparison
use them on any n52/n51/n54/n55
Must use all or none for best results
seems to be holding up the best and support the biggest beating , no rubber insulation to crack and a full metal body.

From another forum n55 coils seem to be the way to go due to quality and metal bodies

People are starting to run S55 coils and plugs as well (plugs are bosch motorsport bmw only)

MDORPHN · 07-16-2015, 10:51 AM

Misleading -- and unjustified -- subject line.

Neil

tc535i · 07-16-2015, 11:12 AM

Quote:

Originally Posted by MDORPHN

Misleading -- and unjustified -- subject line.

Neil

obviously the first 335iNavyGuy post you've read... he's quite a character

csu87 · 07-16-2015, 12:25 PM

Quote:

Originally Posted by MDORPHN

Misleading -- and unjustified -- subject line.

Neil

Yeah i love threads like this that blame an aftermarket part for things that most likely have no relation. Now every noob will see this and think jb4s ruin your coils

Mike@N54Tuning.com · 07-16-2015, 01:33 PM

Quote:

Originally Posted by csu87

Yeah i love threads like this that blame an aftermarket part for things that most likely have no relation. Now every noob will see this and think jb4s ruin your coils

+1

I suggest a title change

Maybe - Adding boost pushed old coils over the edge!

Mike

optigrab · 07-16-2015, 01:52 PM

I recommend map 0 its the easiest on your coils

335iNavyGuy · 07-17-2015, 12:54 AM

Quote:

Originally Posted by Mike@N54Tuning.com

+1

I suggest a title change

Maybe - Adding boost pushed old coils over the edge!

Mike

Agreed and changed

ferocity02 · 07-17-2015, 02:00 AM

How does a tune affect the coils? As far as I know, the tuNE can just change ignition timing which shouldn't be any harder or easier on the coils, it just changes when they fire. Or can the tune change the duration or intensity of the fire?

08-25-2014, 04:57 PM	#1
335iNavyGuy Colonel 222 Rep 2,349 Posts Drives: 07 N54 E92 Join Date: May 2013 Location: San Diego CA iTrader: (3)	OVer boost pushed my dying coil packs to the end! Third car i've installed a jb4 on where the coil pack went out withing minutes. I guess if you have one going bad, and want to know for sure, install a jb4 lol EDIT / UPDATE THIS was posted quite awhile ago, when i wasnt very up on the way this stuff worked, Jb4 didnt kill my coils, it just pushed old ones over the edge. Not the JB4s fault. __________________ 07 E92 Jb4-G5 - Sport Exhaust - Titek BOV BBS Lm reps - AFE dual cone intake Last edited by 335iNavyGuy; 07-17-2015 at 12:57 AM..
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08-25-2014, 04:59 PM	#2
Myrder Major 164 Rep 1,264 Posts Drives: 2010 E92 335i MSport 6MT LMB Join Date: Apr 2013 Location: WildWest iTrader: (1)	Pretty sure any tune will do it, but yes adding more boost and getting more power will show the engine's weakness really quick. __________________ 2010\|335i\|LMB\|E92\|6MT\|MSport\|Logic7\|335is Clutch\|AE Performance\|BMS\|Walbro\|VRSF 7"\| 149.7mph NFZ AZ 1/2mi 1992\|Pontiac Firebird\|Mild 355ci\|T56\| -I will look on your treasures, gypsy. Is this understood?-
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08-25-2014, 05:07 PM	#4
brewnami Major 102 Rep 1,040 Posts Drives: 2009 BMW 335i M Sport Coupe Join Date: Aug 2013 Location: Boston, MA iTrader: (5)	I've installed two JB4's and never had a problem with a coil pack. Though the first time, I smoked my spark plugs and the second time I changed the plugs preemptively. __________________ 2009 335i M Sport coupe, BSM with black/aluminum interior, 6MT, JB4 G5, MDH Backend Flash, Walbro 255 inline LPFP, VRSF Inlets, BMS 3" catless DP's, Borla Aggressive catback, ER FMIC, ER charge pipe, Tial BOV, BMS 2.3 gal Meth Kit, BMS Sport Oil Cooler Valve, Ported CDV, RB PCV, Cyba ram air scoops, Status Gruppe SRS coilovers, ECS trailing arms, Forgestar F14 SDC.
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08-25-2014, 07:49 PM	#10
Eat.Sleep.Race Out Boosting... 249 Rep 3,987 Posts Drives: F30 335i M-Sport Join Date: Feb 2014 Location: Northern VA iTrader: (7)	Me and 13000 members have JB4 with no coil pack issues lol.. The luck on your cars isn't very good i assume. Replace and move on. __________________ Alpine White M-Sport F30
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08-25-2014, 07:56 PM	#11
tc535i Lieutenant Colonel 222 Rep 1,818 Posts Drives: 2007 335i, 2001 330i, 1995 M3 Join Date: Sep 2013 Location: West Los Angeles iTrader: (1)	my car threw a code when I test drove it with the previous owner. he took it to a shop, got 6 new plugs and a coil. I stayed quiet, smiled, got a great deal on the car, and installed jb4 the next week. lol
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07-15-2015, 09:17 PM	#13
GuamX1 First Lieutenant 30 Rep 385 Posts Drives: 08 BMW 135i, 08 128 Cab Join Date: Oct 2011 Location: Guam iTrader: (0)	What coil packs do you replace them with if they fail? Bosch? How about the one step colder NGK iridium plugs, what gap do we set them too? Thank you __________________ 2013 BMW X1 * 1973 Clubman GT * 2016 Mazda MX5 * 2000 Honda S2000 2004 BMW 325i Touring * 2009 BMW X5 3.0xdrive Last edited by GuamX1; 07-15-2015 at 09:39 PM..
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07-16-2015, 10:51 AM	#16
MDORPHN Colonel 299 Rep 2,898 Posts Drives: AW 1M Join Date: Oct 2010 Location: Wash, DC iTrader: (0)	Misleading -- and unjustified -- subject line. Neil
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07-16-2015, 01:52 PM	#20
optigrab More Boost? 60 Rep 283 Posts Drives: 08 135i MSport 6AT Join Date: Apr 2015 Location: Southern PA iTrader: (2)	I recommend map 0 its the easiest on your coils
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07-17-2015, 02:00 AM	#22
ferocity02 Colonel 557 Rep 2,085 Posts Drives: 2013 135is Join Date: May 2014 Location: USA iTrader: (8)	How does a tune affect the coils? As far as I know, the tuNE can just change ignition timing which shouldn't be any harder or easier on the coils, it just changes when they fire. Or can the tune change the duration or intensity of the fire?
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