Let's talk spark plugs! - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

JDM-JUNKY · 08-05-2012, 12:33 PM

What is your favorite spark plug/ had the best luck with.

Please state what kind of motor and if your running boost or if it's n/a. I think this will be a good topic and if this has been covered recently I apologize. Thanks!

mowgli 240sx · 08-05-2012, 12:38 PM

im using ngk iridiums on my n/a kade
and im pretty satisfied with them

godrifttoday · 08-05-2012, 01:13 PM

I rather not

*!Zar!* · 08-05-2012, 07:01 PM

NGK BKR7e gapped at .028

/thread

*fliprayzin240sx* · 08-05-2012, 08:11 PM

Quote:

Originally Posted by !Zar!

NGK BKR7e gapped at .028

/thread

Those are iridiums right?

I've always like BCPR7ES, gapped down to .030, less if I get some ping. Cheap enough to change them out every other oil changes, at $2 a pop.

*!Zar!* · 08-05-2012, 10:23 PM

Quote:

Originally Posted by fliprayzin240sx

Those are iridiums right?

I've always like BCPR7ES, gapped down to .030, less if I get some ping. Cheap enough to change them out every other oil changes, at $2 a pop.

The BKR7e is standard one with the resistor. I pay about $2~ per plug as well.

The BKR7iex is the iridium one.

Isn't the bcpr7es a plug without a resistor?

What does the resistor even do?

sqd · 08-07-2012, 08:59 AM

Quote:

Originally Posted by fliprayzin240sx

Those are iridiums right?

I've always like BCPR7ES, gapped down to .030, less if I get some ping. Cheap enough to change them out every other oil changes, at $2 a pop.

I run the same plugs, only 9s (BCPR9ES), also gapped to .030

Jersthecool · 08-06-2012, 08:47 PM

Quote:

Originally Posted by !Zar!

NGK BKR7e gapped at .028

/thread

Exact same as me. Works perfectly.

*brndck* · 08-05-2012, 09:55 PM

bkr7iex on my redtop sr. never had any issues with em.
i ran champion coppers for quite a while, just changed em out about once a year to be on the safe side. car only gets maybe 5k miles a year and coppers are cheap anyways.
always gap to .030 and use anti-seize.

KiLLeR2001 · 08-05-2012, 10:59 PM

NGK BKR7E (copper) gapped at 0.030.

edit: Redtop SR20DET, stock power.

K_style · 08-06-2012, 10:15 AM

I use NGK R5671A-9 (Copper) on my SR. I am not rich like all of you so can't afford iridium LOL.

Instead, I change them after every tack day or oil change.

*brndck* · 08-06-2012, 10:34 AM

has anyone ever tried pulstar plugs on a sr? i remember emailing them right when they came out and they didn't have an application for sr20.
The world's most powerful spark plug from Enerpulse

K_style · 08-06-2012, 10:56 AM

Quote:

Originally Posted by brndck

has anyone ever tried pulstar plugs on a sr? i remember emailing them right when they came out and they didn't have an application for sr20.
The world's most powerful spark plug from Enerpulse

Sounds pretty expensive considering you have to pay for shipping.
Is there any retailer sells their spark plugs? I couldnt find on their website..

di-devol · 08-06-2012, 12:43 PM

BKR7e's .022, I need a coil upgrade.

JDM-JUNKY · 08-06-2012, 11:41 PM

Quote:

Originally Posted by di-devol

BKR7e's .022, I need a coil upgrade.

Go ls2 truck coils I am planning on using them on my build. They are cheap and I have hear very good things about them.

supakat · 08-07-2012, 06:49 AM

Quote:

Originally Posted by di-devol

BKR7e's .022, I need a coil upgrade.

KA-T.org - The Home of 1000+ whp/7 sec Turbo KA's

***Future240*** · 08-06-2012, 03:04 PM

This thread has potential for good info, moved to chat.

To get the convo going.

Has anyone ever measured performance gains/loss due to spark plugs?

*hOngsterr* · 08-06-2012, 04:13 PM

steve shadows iirc said for spark plugs to be gapped at .028 for power i believe.

SomeoneWhoIsntMe · 08-06-2012, 04:19 PM

I use BKR6E so BKR7E's in every-fucking-thing with plug wires, are they the correct height to work with coil-on-plug ignition jap motors like the RB20? I know there's two different standards, ISO and JIS...

turbociv910 · 08-06-2012, 04:30 PM

gas mileage/emissions- run iridium, platinum.

want power, run copper.

end of thread.

***Future240*** · 08-06-2012, 08:47 PM

Quote:

Originally Posted by turbociv910

gas mileage/emissions- run iridium, platinum.

want power, run copper.

end of thread.

Care to further explain that?

Kaifd3s · 08-06-2012, 08:20 PM

BKR7EIX S14 blacktop. I just keep the receipt from Advance and warranty them whenever I feel like changing them. They come with a 3 year warranty

turbociv910 · 08-06-2012, 09:10 PM

Engines get better gas mileage and less emissions the hotter they are, that is why most cars have an operating temp of 200-220. Some iron blocks are 230!. Iridium increases heat increasing fuel mileage. Hotter everything is, the air the engine is consuming is less dense(= less fuel). Just like when its cold you expect more power right?

Copper runs cooler, has colder spark(naturally) to reduce detonation for higher horsepower and aftermarket applications. Many, countless times have i taken out iridium plugs in exchange for copper and gained power, or got rid of a miss fire.

never buy "iridium racing" plugs for your car, you will waste the $$ and i will say i told you so.

downside is that a copper plug wears out twice as fast, but who cares when they cost $3 a piece.

EsChassisLove · 06-30-2013, 12:15 AM

Quote:

Originally Posted by turbociv910

Engines get better gas mileage and less emissions the hotter they are, that is why most cars have an operating temp of 200-220. Some iron blocks are 230!. Iridium increases heat increasing fuel mileage. Hotter everything is, the air the engine is consuming is less dense(= less fuel). Just like when its cold you expect more power right?

Copper runs cooler, has colder spark(naturally) to reduce detonation for higher horsepower and aftermarket applications. Many, countless times have i taken out iridium plugs in exchange for copper and gained power, or got rid of a miss fire.

never buy "iridium racing" plugs for your car, you will waste the $$ and i will say i told you so.

downside is that a copper plug wears out twice as fast, but who cares when they cost $3 a piece.

Had misfire with my .30 Iridiums. Swapped to cheap copper and .25 gap and misfire disappeared.

Going to dyno with Iridiums and then switch to copper to see a difference.

supakat · 08-07-2012, 06:47 AM

BKR7E @ .036 @ 23 psi with Corn and LS2 Coils. Before, 20 psi and stock dizzy and coil rewire, I was running .030.

landins13 · 08-07-2012, 08:28 AM

BKR7E's at .028 when I had a SR

boniomario · 08-07-2012, 11:03 AM

I use 95 Supra Spark Plugs NGK brand gapped at 0.3 with heat range of 7 one above the stock spec

I change them out almost every month running 15 lbs of boost S14 SR20DET

supakat · 08-07-2012, 11:16 AM

Majority of the time with NGK, the number in the plug model is the range. BKR7E is 7 and BPR9ES is 9 heat range. Stock is BKR5E or optional 6E.

boniomario · 08-07-2012, 11:35 AM

thanks learn something new everyday, I just walk in there ask for the heat range LOL

Irresistible · 08-07-2012, 01:58 PM

What exactly does gapping the plugs do? Would it benefit anything on a stock KA?

I recently bought NGK Iridium plugs, and NGK cables just need to put them in.

But I also am planning on going KA-T next year, so would gapping the plugs help then?

08-05-2012, 12:33 PM	#1
JDM-JUNKY Join Date: Aug 2012 Location: Kansas Age: 26 Posts: 21 Trader Rating: (0) Feedback Score: 0 reviews	Let's talk spark plugs! What is your favorite spark plug/ had the best luck with. Please state what kind of motor and if your running boost or if it's n/a. I think this will be a good topic and if this has been covered recently I apologize. Thanks!

08-05-2012, 01:13 PM	#3
godrifttoday Post Whore! Join Date: Jan 2004 Location: los angeles Age: 37 Posts: 3,120 Trader Rating: (82) Feedback Score: 82 reviews	I rather not __________________ NEED Bolt kits for your car?

08-05-2012, 07:01 PM	#4
!Zar! Premium Member Join Date: Nov 2004 Location: North Korea Posts: 14,576 Trader Rating: (27) Feedback Score: 27 reviews	NGK BKR7e gapped at .028 /thread __________________

08-05-2012, 10:59 PM	#10
KiLLeR2001 Post Whore! Join Date: Jun 2007 Location: オーランドフロリダ Posts: 7,955 Trader Rating: (46) Feedback Score: 46 reviews	NGK BKR7E (copper) gapped at 0.030. edit: Redtop SR20DET, stock power. __________________ Last edited by KiLLeR2001; 08-07-2012 at 02:05 PM..

08-06-2012, 04:30 PM	#20
turbociv910 Zilvia Member Join Date: Oct 2011 Location: wilmington nc Age: 32 Posts: 241 Trader Rating: (0) Feedback Score: 0 reviews	gas mileage/emissions- run iridium, platinum. want power, run copper. end of thread. __________________ www.carolinadyno.com s13 LSx turbo drag car- 1.42 60 ft, 6.32 1/8

08-05-2012, 12:38 PM	#2
mowgli 240sx Zilvia FREAK! Join Date: Mar 2010 Location: socal-909- Posts: 1,440 Trader Rating: (14) Feedback Score: 14 reviews	im using ngk iridiums on my n/a kade and im pretty satisfied with them

08-06-2012, 10:15 AM	#11
K_style Post Whore! Join Date: Dec 2007 Location: Henderson, NV Posts: 7,666 Trader Rating: (63) Rides Gallery: K_style Feedback Score: 63 reviews	I use NGK R5671A-9 (Copper) on my SR. I am not rich like all of you so can't afford iridium LOL. Instead, I change them after every tack day or oil change.

08-06-2012, 12:43 PM	#14
di-devol Zilvia FREAK! Join Date: Jun 2010 Location: Woodinville Age: 39 Posts: 1,412 Trader Rating: (5) Feedback Score: 5 reviews	BKR7e's .022, I need a coil upgrade.

08-06-2012, 04:19 PM	#19
SomeoneWhoIsntMe Leaky Injector Join Date: Jun 2010 Location: Waterford, MI Posts: 130 Trader Rating: (2) Feedback Score: 2 reviews	I use BKR6E so BKR7E's in every-fucking-thing with plug wires, are they the correct height to work with coil-on-plug ignition jap motors like the RB20? I know there's two different standards, ISO and JIS...

08-06-2012, 08:20 PM	#22
Kaifd3s Zilvia Addict Join Date: Feb 2008 Location: Tamarac, Florida Age: 35 Posts: 694 Trader Rating: (16) Feedback Score: 16 reviews	BKR7EIX S14 blacktop. I just keep the receipt from Advance and warranty them whenever I feel like changing them. They come with a 3 year warranty __________________

08-06-2012, 09:10 PM	#23
turbociv910 Zilvia Member Join Date: Oct 2011 Location: wilmington nc Age: 32 Posts: 241 Trader Rating: (0) Feedback Score: 0 reviews	Engines get better gas mileage and less emissions the hotter they are, that is why most cars have an operating temp of 200-220. Some iron blocks are 230!. Iridium increases heat increasing fuel mileage. Hotter everything is, the air the engine is consuming is less dense(= less fuel). Just like when its cold you expect more power right? Copper runs cooler, has colder spark(naturally) to reduce detonation for higher horsepower and aftermarket applications. Many, countless times have i taken out iridium plugs in exchange for copper and gained power, or got rid of a miss fire. never buy "iridium racing" plugs for your car, you will waste the $$ and i will say i told you so. downside is that a copper plug wears out twice as fast, but who cares when they cost $3 a piece. __________________ www.carolinadyno.com s13 LSx turbo drag car- 1.42 60 ft, 6.32 1/8

08-07-2012, 06:47 AM	#25
supakat Leaky Injector Join Date: Jan 2012 Location: FL Age: 38 Posts: 57 Trader Rating: (0) Feedback Score: 0 reviews	BKR7E @ .036 @ 23 psi with Corn and LS2 Coils. Before, 20 psi and stock dizzy and coil rewire, I was running .030. __________________ 12.96 @ 116.36 - Build Thread

08-07-2012, 08:28 AM	#26
landins13 Zilvia Addict Join Date: Jan 2008 Location: Baltimore Posts: 986 Trader Rating: (3) Feedback Score: 3 reviews	BKR7E's at .028 when I had a SR __________________ NO HANDS IN PANTS!!

08-07-2012, 11:03 AM	#27
boniomario Zilvia Member Join Date: Apr 2011 Location: Somewhere in this world Posts: 169 Trader Rating: (0) Feedback Score: 0 reviews	I use 95 Supra Spark Plugs NGK brand gapped at 0.3 with heat range of 7 one above the stock spec I change them out almost every month running 15 lbs of boost S14 SR20DET __________________ Last edited by boniomario; 11-15-2012 at 12:14 PM..

08-07-2012, 11:16 AM	#28
supakat Leaky Injector Join Date: Jan 2012 Location: FL Age: 38 Posts: 57 Trader Rating: (0) Feedback Score: 0 reviews	Majority of the time with NGK, the number in the plug model is the range. BKR7E is 7 and BPR9ES is 9 heat range. Stock is BKR5E or optional 6E. __________________ 12.96 @ 116.36 - Build Thread

08-07-2012, 11:35 AM	#29
boniomario Zilvia Member Join Date: Apr 2011 Location: Somewhere in this world Posts: 169 Trader Rating: (0) Feedback Score: 0 reviews	thanks learn something new everyday, I just walk in there ask for the heat range LOL __________________

08-07-2012, 01:58 PM	#30
Irresistible Nissanaholic! Join Date: Dec 2009 Location: Chicago, IL Posts: 1,994 Trader Rating: (21) Feedback Score: 21 reviews	What exactly does gapping the plugs do? Would it benefit anything on a stock KA? I recently bought NGK Iridium plugs, and NGK cables just need to put them in. But I also am planning on going KA-T next year, so would gapping the plugs help then? __________________ GLEAM//★☆Street Dancer☆★ IG: streetdncr // tumblr: steve-strtdncr

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