Anyone with the NGK 5992 have idle stumble/misfire?

TenshiWingusu · 04-01-2013, 09:13 PM

Was just wondering if anyone with the NGK 5992 colder plug has issues with rough idle and low throttle/low load misfiring.

Thanks

deltalima0 · 04-01-2013, 09:19 PM

Quote:

Originally Posted by TenshiWingusu

Was just wondering if anyone with the NGK 5992 colder plug has issues with rough idle and low throttle/low load misfiring.

Thanks

I had problems with them also, went back to Oem problem fixed.

Szemenyei · 04-01-2013, 09:36 PM

I just installed a set tonight in my car. I went out around the block and did a few WOT pulls. Might have only like 10 miles on them but so far the car idles fine and no issues with acceleration. Are you sure you gapped them properly?

Tony@vargasturbotech · 04-01-2013, 10:35 PM

Quote:

Originally Posted by TenshiWingusu

Was just wondering if anyone with the NGK 5992 colder plug has issues with rough idle and low throttle/low load misfiring.

Thanks

Have them stage 3 car and mikes stage 2, never a single problem. Gap is critical

BQTuning · 04-01-2013, 10:47 PM

Quote:

Originally Posted by Vargasturbotech

Have them stage 3 car and mikes stage 2, never a single problem. Gap is critical

+1

Will be getting these installed next week. haha, 37k miles still on the ordinal plugs

Notes from a reputable tuner

Quote:

Thing to note is that these plugs off the shelf come with a larger gap than we can use on the N54 so just direct swapping them in won’t work and the car will stumble/misfire that way. You MUST have them gapped either to the OEM 0.7mm (0.0275″) or, which I’d recommend, to 0.56mm (0.022″) for high boost. The original gap on the NGK 5992 plugs is 0.8mm (0.031″) so make sure to GAP them before installation!

MR. BONEZ · 04-01-2013, 11:22 PM

Im running them and haven't had any problems yet, smooth as butter.

AK 335i · 04-01-2013, 11:23 PM

Quote:

Originally Posted by Vargasturbotech

Have them stage 3 car and mikes stage 2, never a single problem. Gap is critical

going to run them with the 6466... what do u recommend .022 .020?

uniter · 04-01-2013, 11:28 PM

I run these @ 19psi. No problems.

Ninja: Gap them!

BoostAddict · 04-01-2013, 11:31 PM

No issues with mine. Gapped to .022 I believe

BoostedE90 · 04-02-2013, 06:47 AM

Quote:

Originally Posted by smi1gj

going to run them with the 6466... what do u recommend .022 .020?

http://blog.protuningfreaks.com/2013...m-ilzkbr7a-8g/

135Pats · 04-02-2013, 08:49 AM

Could someone enlighten me as to the benefits of going a step colder on plugs for cars that aren’t making BIG power? For those of us who are “merely” FBO, are there any benefits? Not knocking any ones choice to use them, I’m genuinely curious as to the rationale behind it.

Transport3r · 04-02-2013, 09:21 AM

Quote:

Originally Posted by 135Pats

Could someone enlighten me as to the benefits of going a step colder on plugs for cars that aren’t making BIG power? For those of us who are “merely” FBO, are there any benefits? Not knocking any ones choice to use them, I’m genuinely curious as to the rationale behind it.

"Merely FBO" is not as trivial as you put it. the engine still puts out ~150 WHP over stock. That is certainly good cause to go one heat range colder. The general rule of thumb is 1 heat range down for each 100HP more.

uniter · 04-02-2013, 09:25 AM

Quote:

Originally Posted by 135Pats

Could someone enlighten me as to the benefits of going a step colder on plugs for cars that aren’t making BIG power? For those of us who are “merely” FBO, are there any benefits? Not knocking any ones choice to use them, I’m genuinely curious as to the rationale behind it.

Even FBO is +100HP.
http://www.ngk.com/learning-center/a...or---do-i-need

TT-Tom · 04-02-2013, 09:39 AM

Quote:

Originally Posted by Vargasturbotech

Have them stage 3 car and mikes stage 2, never a single problem. Gap is critical

^^^^ 0.025

135Pats · 04-02-2013, 09:48 AM

Quote:

Originally Posted by Transport3r

"Merely FBO" is not as trivial as you put it. the engine still puts out ~150 WHP over stock. That is certainly good cause to go one heat range colder. The general rule of thumb is 1 heat range down for each 100HP more.

Quote:

Originally Posted by uniter

Even FBO is +100HP.
http://www.ngk.com/learning-center/a...or---do-i-need

Interesting, I had been under the impression that these plugs weren’t of much use unless you were really after some big whp numbers. My plugs have about 10K on them, so when I swap them out in 5K miles I’ll try these out. I knew they weren’t going to cause any issues assuming proper gap, but I wasn’t aware they’d be useful for a car making FBO power. Thanks for the responses.

cleex024 · 04-02-2013, 09:58 AM

so what is the real benefit? my car seems to run pretty strong

Jeff@TopGearSolutions · 04-02-2013, 11:53 AM

Quote:

Originally Posted by cleex024

so what is the real benefit? my car seems to run pretty strong

They are just one step colder.

The purpose is that the stock spark plugs are made for stock boost and stock pressure and heat.

So going 1 step "colder" on the plugs will lessen the likelihood of detonation. Although there really doesn't seem to be a problem with stock plugs and stock turbo setups.

You can probably google a better answer but that is the jist of it.

cleex024 · 04-02-2013, 12:03 PM

Quote:

Originally Posted by Jeff@TopGearSolutions

They are just one step colder.

The purpose is that the stock spark plugs are made for stock boost and stock pressure and heat.

So going 1 step "colder" on the plugs will lessen the likelihood of detonation. Although there really doesn't seem to be a problem with stock plugs and stock turbo setups.

You can probably google a better answer but that is the jist of it.

thanks...yeah i dont really need to go too much into detail just wanted to know if there really is a benefit to these.

so basically if i dont get misfires i shouldnt worry too much?

also anyone know if there are any better coil packs out there or are the oem ones basically the best ones?

Shadow007 · 04-02-2013, 12:22 PM

I just ordered some Bosch spark plugs http://www.ecstuning.com/BMW-E92-335...osch/ES257800/ so I guess I really can't go wrong with the choice, since my car has 34,XXX miles on, I'm assuming on the stock plugs.

Jeff@TopGearSolutions · 04-02-2013, 12:24 PM

Quote:

Originally Posted by cleex024

thanks...yeah i dont really need to go too much into detail just wanted to know if there really is a benefit to these.

so basically if i dont get misfires i shouldnt worry too much?

also anyone know if there are any better coil packs out there or are the oem ones basically the best ones?

Like I said unless you are going with upgraded turbo's and you want to lessen the likelihood of detonation from high boost, you dont need them.

We offer Okada Coil Pack Upgrades.

1nityrider · 04-02-2013, 12:43 PM

Quote:

Originally Posted by Shadow007

I just ordered some Bosch spark plugs http://www.ecstuning.com/BMW-E92-335...osch/ES257800/ so I guess I really can't go wrong with the choice, since my car has 34,XXX miles on, I'm assuming on the stock plugs.

Oh this sucks. I just bought a set of stock plug from the dealership 3 days ago for $220. I haven't put them on yet. I will go check on return policy.

AWil335i · 04-02-2013, 02:22 PM

Quote:

Originally Posted by 1nityrider

Oh this sucks. I just bought a set of stock plug from the dealership 3 days ago for $220. I haven't put them on yet. I will go check on return policy.

Hope they used a condom!

My NGK's were $70 something with shipping. No issues to report...

04-01-2013, 09:13 PM	#1
TenshiWingusu Private First Class 8 Rep 105 Posts Drives: '07 335xi Join Date: Jul 2012 Location: United States iTrader: (0)	Anyone with the NGK 5992 have idle stumble/misfire? Was just wondering if anyone with the NGK 5992 colder plug has issues with rough idle and low throttle/low load misfiring. Thanks __________________ Vishnu PROcede 2.5SE, BMS DCI, Evolution Racewerk Charge Pipe, HKS SSQV4
	Appreciate 0 Tweet Quote

04-01-2013, 09:36 PM	#3
Szemenyei First Lieutenant 7 Rep 327 Posts Drives: Jet Black 335xi Join Date: Nov 2010 Location: Long Island, NY iTrader: (1)	I just installed a set tonight in my car. I went out around the block and did a few WOT pulls. Might have only like 10 miles on them but so far the car idles fine and no issues with acceleration. Are you sure you gapped them properly? __________________ Current: 2018 F80 M3 Retired: 2013 B8.5 S4 Retired: 2007 e90 335xi Cobb Tuned e85 50/50, AFE Intake, VK Catless Downpipes, Spec Stage 3+ SMFW, ER CP w/ TIAL, Vanguard Exhaust (Custom Fit )
	Appreciate 0 Quote

04-01-2013, 11:22 PM	#6
MR. BONEZ Private First Class 13 Rep 187 Posts Drives: 2008 E92 335I 6MT Join Date: Aug 2012 Location: SALINA, KS iTrader: (0)	Im running them and haven't had any problems yet, smooth as butter.
	Appreciate 0 Quote

04-01-2013, 11:28 PM	#8
uniter Black on Black on Black. 38 Rep 532 Posts Drives: 335i/6mt Sport,Nav,Prem. Join Date: Feb 2010 Location: New Hope, PA iTrader: (1)	I run these @ 19psi. No problems. Ninja: Gap them! __________________ LEMANS BLUE M-TECH E92->PROCEDE REV3::BIEHNTUNE FLASH::ETS 7" FMIC::RACELAND DPS::OS GIKEN 1.5 WAY::DEFIV DIFF LOCKDOWN::DEFIV OCC::DEFIV INTAKE::RB PCV
	Appreciate 0 Quote

04-01-2013, 11:31 PM	#9
BoostAddict Banned 48 Rep 932 Posts Drives: SGM 335i Join Date: Jan 2010 Location: Boynton Beach, FL iTrader: (4)	No issues with mine. Gapped to .022 I believe
	Appreciate 0 Quote

04-02-2013, 08:49 AM	#11
135Pats Major General 456 Rep 6,478 Posts Drives: A few BMWs Join Date: May 2012 Location: Maryland iTrader: (3)	Could someone enlighten me as to the benefits of going a step colder on plugs for cars that aren’t making BIG power? For those of us who are “merely” FBO, are there any benefits? Not knocking any ones choice to use them, I’m genuinely curious as to the rationale behind it. __________________ E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP F30 N55 XDrive EBII
	Appreciate 0 Quote

04-02-2013, 09:58 AM	#16
cleex024 Lieutenant Colonel 104 Rep 1,529 Posts Drives: 2008 BMW 335i Coupe Join Date: Mar 2011 Location: Woodbridge iTrader: (2)	so what is the real benefit? my car seems to run pretty strong __________________ Space Gray l 6MT l OSG LSD w/ VAC Race Diff Cover l Cobb e30 l Morr vs8.2 l UUC SSK w/ DSSR l VSRF Catless Dps l RPI Intercooler l CDV Removed l HID AE 8000k l ETS Catback l AST 5200 w/ Vorshlag Camber Plates l ER Dual Oil Coolers l Rear Camber and Toe Arms l K&N Drop In l Solid Tranny/Diff/Subframe Bushings l Bridgestone RE-11
	Appreciate 0 Quote

04-02-2013, 12:22 PM	#19
Shadow007 Captain 63 Rep 605 Posts Drives: 2009 335i coupe monaco blue Join Date: Apr 2012 Location: El Paso, TX iTrader: (2)	I just ordered some Bosch spark plugs http://www.ecstuning.com/BMW-E92-335...osch/ES257800/ so I guess I really can't go wrong with the choice, since my car has 34,XXX miles on, I'm assuming on the stock plugs. __________________ F90 M5 Comp/ FI Exhaust, MAD pdownpipes / PG Intakes/ H&R Springs/ AG wheels E85 Z4M
	Appreciate 0 Quote